4:38 Concept Cars Electric Cars Vans More From Roadshow Now playing: Watch this: 2019 Nissan Pathfinder Rock Creek Edition first drive: Its roots are showing More about 2019 Nissan Leaf Plus 2019 Nissan Leaf Plus review: A better EV, but maybe not the best Review • 2019 Nissan Leaf Plus review: A better EV, but maybe not the best Nissan built an ice cream truck that’s efficient from start to finish News • 2019 Nissan Leaf Plus officially achieves 226-mile range, but there’s a catch Preview • 2019 Nissan Leaf Plus first drive: Expanding the EV’s appeal Nissan Tags Share your voice 2020 Nissan Versa first drive: 15% more price, 100% more car 1 Comment 24 Photos Nissan Leaf long-term wrap-up: One year of electric feels Enlarge ImageShrug off the effects of climate change with a nice ice cream cone, served by a vehicle that’s doing its part to mitigate future effects of climate change. Nissan According to Nissan, there are some monsters out there who have a problem with ice cream trucks — not the idea of an ice cream truck or the thought of children sprinting out into the street, but the overall ecological footprint of such an endeavor. Thankfully, Nissan engineered a way around that, and it’s green from “sky to scoop,” as the automaker puts it.Nissan on Thursday unveiled its vision for a zero-emissions ice cream truck. And it’s not just the truck that is better for the environment — it’s the entire process in and around the idea of serving ice cream from a vehicle.The vehicle itself is a modified version of Nissan’s e-NV200 small van, which replaces the internal combustion engine (ICE) with a battery-electric powertrain. According to the automaker, some ice cream trucks get a bad rap because they have diesel engines that must remaining running to power the refrigeration system, which can lead to a whole bunch of gnarly emissions.But the e-NV200 doesn’t actually use the EV battery for keeping that ice cream cold. Instead, it uses Nissan’s Energy Roam system, which uses recycled Nissan EV batteries as a portable power pack that can deliver energy where it’s needed. Hell, even the ice cream itself is zero-emissions (minus, you know, the cow flatulence), because the creamery that makes the product — Mackie’s of Scotland — powers its farm with wind and solar energy.Even the experience of serving the ice cream is delightfully different. There’s no room to hang out in the back of the van, so the driver stands outside and serves ice cream directly to customers in a more personal manner. There’s a contactless payment terminal right on the side of the van. Instead of rolling around playing tunes, the van generates a What3Words code for its location, narrowing down its parking spot to a 3-meter-by-3-meter square. That way, kids don’t hear the music and immediately start shaking parents down for spare change, and there’s no worry about missing it.It’s just a concept, of course, so don’t expect this ice cream truck to show up in your neighborhood this summer. But nevertheless, it’s yet another unique approach to figuring out how zero-emissions tech can green up the auto industry beyond regular ol’ passenger cars. Green tech Nissan
InstagramVicky Kaushal’s onscreen performances have generated the same kind of buzz that his off-screen life has. The interest around one of the country’s most eligible bachelors refuses to die down and rightly so! Well, ladies, brace yourselves as this particular piece of information might be very hard to digest.After breaking up with Harleen Sethi, Vicky Kaushal is allegedly seeing actress Malavika Mohanan. It has barely been a few months since Vicky Kaushal made news for his relationship with actress Harleen Sethi and then made subsequent news for their unceremonious break-up and now, the Uri actor is back in news for dating Ishaan Khatter’s Beyond The Clouds co-star – Malavika Mohanan.A pinkvilla report states, “Malavika is always talking glowingly about him to everybody. She likes him so much she cannot stop gushing about him and while Vicky is more reticent, he does these little romantic gestures, like dropping in and surprising her on the sets of one of her South films and taking her out for lunch. Vicky loves home-cooked South Indian food and often drops in on the Mohanan house in Mumbai like Thursday night. Even though he’s a Punjabi, he loves the South Indian style fish-curry and rice but on Thursday he was disappointed it was not there so Malavika pulled his leg on Insta by posting “Deprived of fish curry and rice. Life is not a Mani Ratnam film today.”Prior to this, Vicky Kaushal was also in news for his alleged closeness to Katrina Kaif and Bhumi Pednekar. Bhumi was cited as the reason for his breakup with Harleen Sethi. Needless to say, Malavika and Vicky look fabulous together and we hope this time, Vicky comes out in the open and accepts his relationship.
File picture of people protesting against the erection of the statue in TaiwanReuters/Tyrone SiuSouth Korea has been mounting pressure on Japan for over seven decades since 1945 to compensate for the latter’s atrocities during the colonization era that preceded for about 35 years since 1910, including subjecting many women to be captured and made “Comfort Women” for its armed forces.Though it has lingered for decades, a ruling by South Korea’s Supreme Court last year asking Japanese companies to compensate the South Koreans who were conscripted as forced laborers during World War Two turned the trigger to worsen ties between the erstwhile trade partners. Alarming indeed that both have upped the ante, irrespective of the looming danger from North Korea.Japan removed South Korea from its trade partners’ White List, citing an erosion of trust and imposed tighter controls on exports of materials, especially some key components used in smartphone chips. In a tit-for-tat move, South Korea on Monday said it would remove Japan from its own “white list” of countries with fast-track trade status.Apart from trade relations, last week, Seoul hinted that it would withdraw from the 2014 security pact with Tokyo on sharing military and strategic intelligence, especially against North Korea’s nuclear and missile program. Under this pact, Japan used to share intelligence gathered from its satellites, radars, patrol aircraft and other high-tech systems on North Korea’s missile tests and its submarines, while it received in turn, some key information from Seoul’s military radars observing the border to detect North Korean launches, besides some information from spies and defectors from North Korea. However, both can live without the agreement as the US is still a member of some such trilateral pacts.On his part, South Korean President Moon Jae-in said Japan’s economic retaliation is unfair as it owes to its colonial-era abuses, but never relented as his government moved swiftly to invest about 7.8 trillion won ($6.48 billion) over the next seven years to procure the vital materials domestically.”The government will pursue an elaborate and detailed strategy to more substantively develop our economy by taking Japan’s economic retaliation as a chance to turn good out of evil,” said Moon but the move is seen as distancing the role of US as a possible negotiator in the region.Some Japanese experts quickly pointed out that it was a signal from an emboldened South Korea. “South Korea under the Moon administration appears to be not as enthusiastic about the trilateral cooperation with Japan and the U.S. as South Korea used to be in the past,” Junya Nishino, a Korea expert at Keio University, recently said on a TV talk show, reports Reuters. “President Moon thinks the current framework is a legacy of the Cold War era and should be changed.”It remains to be an intriguing development that was never expected between the two trusted allies of the US in the Korean peninsula. Whether Trump offers his mediation and how far his offer will be accepted is another big question before the experts.
Moudud AhmedSenior BNP leader Moudud Ahmed has said his party is trying to reach an understanding with the government for the sake of better elections in the country.Saying that the BNP will contest the next parliamentary polls, he made clear the party’s position that they want elections under such a government which would have no political ambition.”That’s why, we’re tryng to reach an understanding with the govenment,” he said at a programme in Faridpur on Friday.Moudud, a standing committee member of the BNP, pointed out that the BNP did not hold any protest demonstration in the past two years to create confidence in the ruling camp.”We didn’t do anything (protest demonstration) which can embarrass the government,” he said adding that they hoped that the Awami League govenment would show democratic attitude to reciprocate the BNP’s gesture of doing peaceful politics.The BNP leadership has been demanding fair elections to be held under an election-time neutral government.Moudud emphasised that “the BNP wants solution, not conflict”.He made the observations while replyng to questions from journlaists after distributing scholarship among students at Palli Kabi Jasimuddin’s home at Gabindapur village of Ambikapur union in Faridpur.The BNP leader said, “The BNP does not do vindictive politics. If the government does not come to an understaniding, it would mean that it is afraid of facing trial for their corruption and plundering of resources once they are out of power.”Moudud, a former vice president and law minister, alleged that the government has no accountability. “Killing, plundering and rape are going on unabated in the country,” he added.Moudud Ahmed went on to say, “We’ll try to reach the understaing until the last moment. If the government does not respond to our demand, there is no alternative to movement.”
Map of ChuadangaMembers of Border Guard Bangladesh seized 320 gold bars weighing around 37 kilogrammes from the Mathabhanga river along Nastipur border in Damurhuda upazila of Chuadanga on Wednesday noon.Being tipped-off that a consignment of gold would be smuggled to India through the border, BGB members took position around no 80 pillar since the morning, said Iman Hasan, a commanding officer of BGB battalion.The BGB team challenged three people who were moving around the pillar around 3:00pm, he said.Sensing danger, the trio threw three bags they were carrying into the river and crossed into the Indian territory swimming across the river, reports UNB.Later, the paramilitary force members retrieved the three bags and found 320 gold bars inside those, Iman said.
Eid meals ready for deliveryEverything shuts down for the Eid holidays, even most eateries. So those who normally eat out or buy their meals on the way home, are forced to cook for themselves during Eid or depend on friends and relatives for their meals. For those who cooking is not a routine task, this becomes quite a hassle.But that’s what business is all about, supplying where there is a demand. And so Mekhla, Salsa Bili and Sharmin Jahan and others like them grab the opportunity to cook and home deliver food during Eid and other holidays when the city comes to a standstill.These culinary entrepreneurs pop up on the social media. A news media person, Sirajum Munira, posted a note on an online shopping platform asking if anyone could deliver food on Eid and the day after.She said, “All food shops close down for Eid. But for us who work throughout the holidays, this can be a problem. That’s why I looked for someone who can supply meals at this time.”Sirajum Munira’s post revealed many who were ready to home deliver food during Eid. Salsa Bili Jannat was one of them. Salsa Bili used to be a presenter and a researcher. As a mother of a young child, it is much easier for her to work from home. Her business is quite new, meeting the demand for those who need cooked meals. Now she has opened her own online page.She said, “I cooked for about 40 people during Eid. I have similar orders for the day after Eid too.”How does it feel having to work while everyone else is on holiday? Salsa Bili said, “I would be cooking anyway for my own family, so I just cook a bit more. That solves the customers’ problems and I can earn some money too.”Salsa’s customers are her acquaintances. Housewife Bijoya is a regular client. She said, “We get perfect homemade food here and it’s a big help during the holidays when everything is closed.”Like Salsa Bili, Sharmeen Jahan Chowdhury is also an entrepreneur. She used to be quite happy cooking at home and looking after her family. She never imagined taking up any such initiative. It was her son, a university student, who first hit upon the idea of channelling his mother’s skills into a business. He opened a Facebook page for her. Just two months into the business, Sharmeen Chowdhury’s kitchen already supplied 20 persons’ meals for Eid and has another 40 orders for the day after.“It feels good to be doing something,” said Sharmeen.“My customers come back again and again with orders. I feel a connection with them and it also feels good to be able to cook for them on Eid,” she added.Mekhla is there for those stranded without such food facilities on Eid. She is hearing-impaired but her husband Mahdi Masud was determined not to let this interfere with her work. She has a Facebook page now, Mekhla’s kitchen and regularly gets orders. Her husband and two sons deliver the food. She received meal orders for 300 people this Eid. “Mekhla began the food service just out of fun, but the business is now flourishing. This is an income for the family and it has also built us good relations with so many people,” said Mahdi.Delivering food to the homes is one of the main problems of this business. The existing courier services are unwilling to deliver food. So either the client has to come and pick up the food or the supplier delivers it. That’s why the business doesn’t expand too much, but they are happy with the way things are.Jesmin Akhter makes sweets, halwa and other desserts. Her daughter Salwa Mustafa lives abroad, and so Jesmin found herself with ample spare time on hand. That’s when she started making desserts. Her daughter opened a Facebook page for her called Mithai Monda. She makes the sweets and delivers them herself by car.Jesmin said, “I would make sweets for my daughter when she lived here, now my customers are my kids! They love my sweets on various festivals and that makes me happy.”*The report has been rewritten in English by Ayesha Kabir
An aedes mosquito. File PhotoThree more dengue patients died in Keraniganj of Dhaka, Faridpur and Shariatpur on Monday night and early Tuesday although there is a downtrend in fresh dengue cases across the country, reports UNB.At least 1,572 patients were hospitalised in 24 hours till 8am on Tuesday while 6,470 patients are currently undergoing treatment at different hospitals and clinics.Of the deceased, a rickshaw-puller identified as Shaheb Ali, 35, died in Faridpur district while a housewife, Fatema, 45 died at Mitford Hospital.In Faridpur, Shaheb Ali of Matikanda in Sadar upazila of Rajbari was admitted to Faridpur Medical College Hospital with fever on Monday, said Mahfuzur Rahman Bulu, an assistant director at the hospital.He died around 10:30pm.Seven people have so far died of dengue at the hospital, Bulu said.At least 70 people infected with dengue were admitted to the hospital in the last 24 hours, raising the number of dengue patients to 357.Fatema, hailing from Bandar upazila of Narayanganj, died at Mitford Hospital on Monday after being diagnosed with dengue.Some 105 new patients with dengue fever were admitted to the hospital in the last 24 hours as of Tuesday while 81 people got released from the hospital after taking dengue treatment.In Shariatpur, housewife Suraiya Begum, 35, wife of Kamal Dhali, died after being infected with dengue at her house in Damuda upazila, said former upazila health and family planning officer Syed Anowar Hossain.She was diagnosed with dengue on 16 Aug.Civil surgeon Khalilur Rahman said so far 326 dengue patients were identified. Currently, 56 patients were being treated at hospitals in the district.The number of dengue patients was 1,615 on Monday, 1,706 on Sunday, 1,460 on Saturday, and 1,719 on Friday, according to the Health Emergency Operation Centre and Control Room of the Directorate General of Health Services (DGHS).Meanwhile, the number of new infections at district level also declined in the last 24 hours from Monday’s 858 to 822 on Tuesday.Currently, 3, 413 patients are hospitalised in the capital and 3,057 around the country.The government has so far confirmed the deaths of 40 people although unofficial estimates suggest the death toll is much higher.Since the beginning of this year, 56,369 patients infected with dengue were hospitalised.
Share To embed this piece of audio in your site, please use this code: 00:00 /01:04 – / 2Al Ortiz |Houston Public MediaDeputy Greenwood’s funeral gathers thousands on April 6th, 2017.Investigators with the Baytown Police Department say Assistant Chief Deputy Clint Greenwood was killed by William Kenny, 64, of Houston.Kenny apparently shot himself near Ben Taub Hospital last Tuesday – a day after Greenwood’s death and with the same gun the Harris County Precinct 3 deputy constable was killed with.Lt. Steve Dorris with the Baytown Police Department’s criminal investigations division said Kenny had filed several complaints with the Harris County Sheriff’s Office, “but why Assistant Chief Deputy Greenwood was the person that he went after we just don’t know right now, and unfortunately that’s one of those questions that will be difficult for us to answer because the person that can answer it is no longer here.”A website registered under the name Bill Kenny mentions Greenwood among other public servants who he claims conspired against him.Lt. Dorris would not confirm that there’s a connection.“Our detectives still have a lot of work to do,” he said. “And we will continue to work this investigation as if he is still alive and planning to go forth with the prosecution on it.”Greenwood was gunned down outside the Baytown Courthouse annex where he worked.The crime has been investigated by several law enforcement agencies, including Baytown PD, the FBI and the Texas Rangers.They used surveillance video from different locations to track down the vehicle used by the suspect until they got a good shot of Kenny. Listen X
Share Ten people were killed in clashes following Venezuela’s election to choose an assembly to create a new constitution: https://t.co/qpKgSgyajV pic.twitter.com/plpwTYoueb— CFR (@CFR_org) July 31, 2017 Venezuela’s socialist government claimed a popular mandate to dramatically recast the country’s political system even as the United States pledged potentially devastating oil sanctions on Monday and condemnations of the process poured in from governments around the world and the opposition at home. Electoral authorities said more than 8 million people voted Sunday to create a constitutional assembly endowing President Nicolas Maduro’s ruling party with virtually unlimited powers — a figure widely disputed by independent analysts. The official result would mean the ruling party won more support than it had in any national election since 2013, despite a cratering economy, spiraling inflation, shortages of medicine and malnutrition. Opinion polls showed 85 percent of Venezuelans disapproved of the constitutional assembly and similar numbers disapprove of Maduro’s overall performance. Independent analysts and opposition leaders estimated the real turnout at less than half the government’s claim in a vote watched by government-allied observers but no internationally recognized poll monitors. Opposition leader Henrique Capriles, the governor of the central state of Miranda, urged Venezuelans to protest Monday against an assembly that critics fear will effectively create a single-party state. In a strike at Venezuela’s already flailing economy, U.S. officials said the Trump administration is preparing to levy new sanctions on Venezuela, following through on threats to impose penalties if the country went through with the weekend election. The officials said the new sanctions could be imposed as early as Monday and will likely target Venezuela’s oil sector, including possibly its state owned petroleum company. One official said an announcement was imminent. The officials were not authorized to discuss the matter publicly and spoke on condition of anonymity. Maduro has said the new assembly will begin to govern within a week. He said he would use the assembly’s powers to bar opposition candidates from running in gubernatorial elections in December unless they sit with his party to negotiate an end to hostilities that have generated four months of protests that have killed at least 125 and wounded nearly 2,000. Venezuela’s chief prosecutor’s office reported 10 deaths in new rounds of clashes Sunday between protesters and police. Seven police officers were wounded when a fiery explosion went off as they drove past piles of trash that had been used to blockade a street in an opposition stronghold in eastern Caracas. Maduro says a new constitution is the only way to end such conflicts. “The people have delivered the constitutional assembly,” Maduro said on national television. “More than 8 million in the middle of threats … it’s when imperialism challenges us that we prove ourselves worthy of the blood of the liberators that runs through the veins of men, women, children and young people.” National Electoral Council President Tibisay Lucena announced just before midnight that turnout in Sunday’s vote was 41.53 percent, or 8,089,320 people. The electoral council’s vote counts in the past have been seen as reliable and generally accurate, but the widely mocked announcement appeared certain to escalate the polarization and political conflict paralyzing the country. “If it wasn’t a tragedy … if it didn’t mean more crisis, the electoral council’s number would almost make you laugh,” opposition leader Freddy Guevara said on Twitter. Maduro has threatened that one of the constitutional assembly’s first acts would be jailing Guevara for inciting violence. An exit poll based on surveys from 110 voting centers by New York investment bank Torino Capital and a Venezuela public opinion company estimated 3.6 million people voted, or about 18.5 percent of registered voters. “The results thus suggest that the government maintains an important loyal core of supporters that it can mobilize in both electoral and non-electoral scenarios,” the report concluded. The same pollsters noted that Venezuela has an estimated 2.6 million government employees, “suggesting that a large fraction of the votes could have not been voluntary.” The European Union and nations including Argentina, Canada, Colombia, Mexico, Panama, Paraguay, Spain, Britain and the United States criticized Sunday’s vote. The Trump administration again promised “strong and swift actions” against Venezuelan officials, including the 545 participants in the constitutional assembly, many of them low-ranking party members. Maduro said he had received congratulations from the governments of Cuba, Bolivia and Nicaragua, among others. Opposition leaders had called for a boycott of the vote, declaring it rigged for the ruling party. Ahead of the vote, the opposition organized a series of work stoppages as well as a July 16 protest referendum that it said drew more than 7.5 million symbolic votes against the constitutional assembly. The president of the opposition-led National Assembly, Julio Borges, told Venezuelan news channel Globovision Monday that Maduro’s foes would continue protesting until they won free elections and a change of government. He said Sunday’s vote had given Maduro “less legitimacy, less credibility, less popular support and less ability to govern.” Maduro called the vote for a constitutional assembly in May after a month of protests against his government, which has overseen Venezuela’s descent into a devastating crisis during its four years in power. Due to plunging oil prices and widespread corruption and mismanagement, Venezuela’s inflation and homicide rates are among the world’s highest, and widespread shortages of food and medicine have citizens dying of preventable illnesses and rooting through trash to feed themselves. The 545-seat constituent assembly will have the task of rewriting the country’s constitution and will have powers above and beyond other state institutions, including the opposition-controlled congress. Maduro made clear in a televised address Saturday that he intends to use the assembly not just to rewrite the country’s charter but to govern without limitation. Describing the vote as “the election of a power that’s above and beyond every other,” Maduro said he wants the assembly to strip opposition lawmakers and governors of constitutional immunity from prosecution — one of the few remaining checks on ruling party power. Declaring the opposition “already has its prison cell waiting,” Maduro added: “All the criminals will go to prison for the crimes they’ve committed.” ___ By MICHAEL WEISSENSTEIN and MATTHEW LEE, Associated Press
Plans are underway for West Baltimore’s Renaissance Academy High School to potentially move to the campus of Baltimore City Community College (BCCC). Angela Alvarez, Executive Director, Office of New School Initiatives for Baltimore City Public Schools, gave a brief report to the Public Schools Board members this week, announcing the cooperative effort.Renaissance Academy“We’ve been working collaboratively with partners, particularly Baltimore City Community College and are looking at the potential of relocating Renaissance Academy to BCCC’s campus across from its main campus on Liberty Heights,” Alvarez said at the meeting on Jan. 24.Baltimore City Community College released a statement shortly before the school board meeting, confirming the current negotiations underway to welcome Renaissance Academy.“BCCC and BCPSS are evaluating the financial costs, academic programming and structural needs required to support a potential Renaissance Academy partnership. It is the intent of both organizations to ensure the educational experience of the students is one that will enhance student learning outcomes.”Renaissance Academy families received letters and calls this week from BCPSS informing them of the proposed move. A school-based meeting to solicit community input will be scheduled for early February.Renaissance Academy was originally scheduled for closure in the summer of 2017. The school experienced a number of problems in the previous school year that put it on the closure list in the 2015-2016 school year including a student stabbed in class and the confiscation of a loaded gun on campus.A high level of community support for Renaissance Academy caused the Schools Board to delay formally recommending closure of the school at its December board meeting, when several other BCPSS schools were slated to close. BCPSS CEO Sonja Santileses said she listened to the input of community partners in making the decision to delay closing the school.“I took very seriously the advisement of partners in the faith community and partners at the University of Maryland about the social-emotional needs of the young people.”The BCPSS will issue a final decision on the Renaissance Academy move to BCCC on Feb. 24. Nikkia Rowe, principal of Renaissance Academy, did not return a request for comment by press time.
Citation: Dozens of new ultra-diffuse galaxies discovered in Abell 2744 (2017, January 4) retrieved 18 August 2019 from https://phys.org/news/2017-01-dozens-ultra-diffuse-galaxies-abell.html © 2017 Phys.org UDGs are extremely-low-density galaxies. The largest UDGs have sizes similar the Milky Way but have only about one percent as many stars as our home galaxy. The mystery of UDGs is still baffling scientists as they try explain why these faint but large galaxies are not ripped apart by the tidal field of their host clusters. Furthermore, it is not clear what fraction of UDGs are “failed” giant luminous galaxies, “inflated dwarfs,” or some other phenomenon.Abell 2744 is a giant galaxy cluster located nearly 4 billion light years away in the Sculptor constellation. It is one of the most massive and most disturbed galaxy clusters known to date. Its intracluster light fraction is high and its stellar population consistent with the disruption of luminous galaxies, which makes it an excellent location to search for UDGs.That is why a team of researchers led by Steven Janssens of the University of Toronto, Canada, has investigated Abell 2744 using data obtained with the Hubble Space Telescope (HST) Frontier Fields (FF) program. FF is known for producing the deepest images to date of galaxy clusters and gravitational lensing. The analysis of FF data allowed the astronomers to distinguish dozens of new UDGs in this giant galaxy cluster.”We report the discovery of a large population of ultra-diffuse galaxies in the massive galaxy cluster Abell 2744 (z= 0.308) as observed by the Hubble Frontier Fields program,” the researchers wrote in the paper.As a result, the team detected 76 new UDGs—41 in the cluster field and 35 in the parallel field. They also estimated the total number of UDGs that Abell 2744 contains. According to the paper, given the fact that the analyzed data from the observations samples only a small portion of the galaxy cluster, there should be approximately 2,100 ultra-diffuse galaxies in Abell 2744. The researchers noted that this is 10 times the number of UDGs that exist in a similar cluster known as Abell 1656 (or Coma Cluster).”Abell 2744 hosts an estimated 2133±613 UDGs, 10 times the number in Coma,” the paper reads.The research also allowed the scientists to estimate the number of ultra-compact dwarf (UCD) galaxies in Abell 2744. According to their calculations, there are about 385 UCDs in the galaxy cluster.The researchers concluded that some UCDs in Abell 2744 may have once been nuclei or satellites of infalling UDGs, noting that the latter are ultimately destroyed by tidal forces. “As UDGs fall in and dissolve (and, presumably, blend into the intra-cluster light), they leave behind a residue of unbound, but long-lived UCDs,” the team wrote. (Phys.org)—Astronomers have found a total of 76 new ultra-diffuse galaxies (UDGs) in the massive galaxy cluster designated Abell 2744 (also known as Pandora’s Cluster). The discovery updates the current census of galaxies in this cluster and could help better understand the nature of UDGs in general. The findings were presented in a paper published Dec. 30 on arXiv.org. Explore further More information: Ultra-diffuse and Ultra-compact Galaxies in the Frontier Fields Cluster Abell 2744, arXiv:1701.00011 [astro-ph.GA] arxiv.org/abs/1701.00011AbstractWe report the discovery of a large population of Ultra-diffuse Galaxies (UDGs) in the massive galaxy cluster Abell 2744 (z=0.308) as observed by the Hubble Frontier Fields program. Since this cluster is ~5 times more massive than Coma, our observations allow us to extend 0.7 dex beyond the high-mass end of the relationship between UDG abundance and cluster mass reported by van der Burg et al. 2016. Using the same selection criteria as van der Burg et al. 2016, A2744 hosts an estimated 2133 +/- 613 UDGs, ten times the number in Coma. As noted by Lee & Jang 2016, A2744 contains numerous unresolved compact objects, which those authors identified predominantly as globular clusters. However, these objects have luminosities that are more consistent with ultra-compact dwarf (UCD) galaxies. The abundances of both UCDs and UDGs scale with cluster mass as a power law with a similar exponent, although UDGs and UCDs have very different radial distributions within the cluster. The radial surface density distribution of UCDs rises sharply toward the cluster centre, while the surface density distribution of the UDG population is essentially flat. Together, these observations hint at a picture where some UCDs in A2744 may have once been associated with infalling UDGs. As UDGs fall in and dissolve, they leave behind a residue of unbound ultra-compact dwarfs. Hubble Frontier Fields view of Abell 2744. Credit: NASA, ESA, and J. Lotz, M. Mountain, A. Koekemoer, and the HFF Team (STScI). ‘Pandora’s Cluster’ seen by Spitzer This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.