Dark Energy Survey data release

Dark Energy Survey data release NEWS ISS technology Better connections for Columbus module monitors air quality ISS ESA’s laboratory module BUSINESS Air quality is an issue Columbus has been part of the if you live in the International International Space Station for Space Station – but also in poorly 10 years. Now it is getting a new ventilated buildings on Earth. commercial platform called Bar­ Now a sensor built for the ISS is tolomeo, which offers quick, easy being marketed for use on Earth. and (relatively) affordable space It uses artic fi ial intelligence for missions using the ISS. to match the chemical patterns Space is tight on the ISS, espe­ it detects to the signatures of cially on the outside. Bartolomeo potentially harmful compounds, (named for Christopher Colum­ alerting users to deteriorating air bus’s brother) will offer 11 slots of quality. Airgloss, the company varying sizes for payloads from set up with support from the ESA 5–450 gm. After launch in 2019, it Business Incubation Centre in will be mounted facing Earth, so Lazio, Italy, has redesigned the that experiments can be con­ sensors to work in homes and trolled from the ground. Compa­ commercial premises. They are nies will need to rent for at least a combined with heating, ventila­ year, but can get there much more tion or air conditioning units quickly, with a waiting time of for settings such as schools; in only 1–2 years after contracts are the home, they are paired with signed. ESA hopes that Bartolo­ cooker hoods and air purie fi rs. meo will attract new European The sensors can alert users even users to the ISS, including start­ if they are not at home. ups and space entrepreneurs. http://bit.ly/2Cyp9ZV The Bartolomeo platform will be mounted on the forward side of Columbus. (Airbus) http://bit.ly/2F0depH Dark Energy Survey data release Dwarf galaxies challenge cosmology STRUCTURE The dwarf galax­ data around Centaurus A were ies that orbit Centaurus A do so coplanar and corotating. The largely in a plane, rotating in the statndard model of galaxy same sense and almost perpen­ formation does not produce these dicular to the galactic plane – as systems; galaxy mergers and they do around the Milky Way collisions may play a part in their and Andromeda galaxies. formation. If so, then the dwarf In cosmological simulations, galaxies would be expected not to almost all galaxies like Centau­ include dark matter – something rus A have randomly arranged to be tested in future. Oliver Mül­ dwarf galaxies around them; ler and colleagues published the this study found that 14 of the 16 results in Science. dwarf galaxies with kinematic http://bit.ly/2ozCP2w Opportunity earns its stripes The area mapped by the Dark Energy Survey and the 11 newly discovered stellar streams. Four of the streams shown – ATLAS, Molonglo, Phoenix and Tucana III – were previously known; the rest were discovered from DES data and named in consultation with schoolchildren in Chile and Australia. (Dark Energy Survey) SURVEY The first public data University of Illinois at Urbana­ release from the Dark Energy Champaign, said: “The huge Survey shows new stellar amount of data in these images streams, signs of small galax­ and catalogues will bring new MARS NASA’s remaining active Mars Exploration Rover, Opportunity, is still ies being swallowed up by the scientic fi applications, challenges returning surprising data after 5000 sols. A recent focus has been on textural Milky Way, as well as fulfilling and opportunities for discovery.” stripes in Perseverance Valley on the slopes of Endeavour crater. The surface looks its primary goal of mapping dark The 11 new stellar streams corrugated, with bands of more and less gravel in an otherwise finer-grained matter and dark energy. are an example of this. “They sediment. The bands run parallel to the slope. The stripes (left) look like features The data from the r fi st three teach us about the formation found on Earth (Hawaii, right) which formed by repeated freezing and thawing of years of operations of the DES and structure of the Milky Way wet sediment. More water freezes in finer-grained areas, pushing out larger grains cover one­ eighth of the sky, the and its dark matter halo. Stellar and pebbles, accentuating the pattern over many cycles. The stripes on Mars may full survey footprint of 5000 streams give us a snapshot of a have formed in freeze–thaw cycles, possibly at a time when the obliquity of Mars’s square degrees. Matias Carrasco larger galaxy being built out of rotation axis was much higher and ice accumulated away from the poles. But Kind, DES release scientist at the smaller ones,” said Nora Shipp of surface processing by wind, water or ice – recently or in the distant past – may also US National Center for Super­ the University of Chicago. account for the stripes. (Washington Univ. in St Louis/NASA) computing Applications at the http://des.ncsa.illinois.edu/releases/dr1 http://www.nasa.gov/rovers 2.10 A&G • April 2018 • Vol. 59 • aandg.org Downloaded from https://academic.oup.com/astrogeo/article-abstract/59/2/2.10/4935789 by Ed 'DeepDyve' Gillespie user on 16 March 2018 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Astronomy & Geophysics Oxford University Press

Dark Energy Survey data release

Astronomy & Geophysics , Volume 59 (2) – Apr 1, 2018
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Publisher
Oxford University Press
Copyright
© 2018 Royal Astronomical Society
ISSN
1366-8781
eISSN
1468-4004
D.O.I.
10.1093/astrogeo/aty092
Publisher site
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Abstract

NEWS ISS technology Better connections for Columbus module monitors air quality ISS ESA’s laboratory module BUSINESS Air quality is an issue Columbus has been part of the if you live in the International International Space Station for Space Station – but also in poorly 10 years. Now it is getting a new ventilated buildings on Earth. commercial platform called Bar­ Now a sensor built for the ISS is tolomeo, which offers quick, easy being marketed for use on Earth. and (relatively) affordable space It uses artic fi ial intelligence for missions using the ISS. to match the chemical patterns Space is tight on the ISS, espe­ it detects to the signatures of cially on the outside. Bartolomeo potentially harmful compounds, (named for Christopher Colum­ alerting users to deteriorating air bus’s brother) will offer 11 slots of quality. Airgloss, the company varying sizes for payloads from set up with support from the ESA 5–450 gm. After launch in 2019, it Business Incubation Centre in will be mounted facing Earth, so Lazio, Italy, has redesigned the that experiments can be con­ sensors to work in homes and trolled from the ground. Compa­ commercial premises. They are nies will need to rent for at least a combined with heating, ventila­ year, but can get there much more tion or air conditioning units quickly, with a waiting time of for settings such as schools; in only 1–2 years after contracts are the home, they are paired with signed. ESA hopes that Bartolo­ cooker hoods and air purie fi rs. meo will attract new European The sensors can alert users even users to the ISS, including start­ if they are not at home. ups and space entrepreneurs. http://bit.ly/2Cyp9ZV The Bartolomeo platform will be mounted on the forward side of Columbus. (Airbus) http://bit.ly/2F0depH Dark Energy Survey data release Dwarf galaxies challenge cosmology STRUCTURE The dwarf galax­ data around Centaurus A were ies that orbit Centaurus A do so coplanar and corotating. The largely in a plane, rotating in the statndard model of galaxy same sense and almost perpen­ formation does not produce these dicular to the galactic plane – as systems; galaxy mergers and they do around the Milky Way collisions may play a part in their and Andromeda galaxies. formation. If so, then the dwarf In cosmological simulations, galaxies would be expected not to almost all galaxies like Centau­ include dark matter – something rus A have randomly arranged to be tested in future. Oliver Mül­ dwarf galaxies around them; ler and colleagues published the this study found that 14 of the 16 results in Science. dwarf galaxies with kinematic http://bit.ly/2ozCP2w Opportunity earns its stripes The area mapped by the Dark Energy Survey and the 11 newly discovered stellar streams. Four of the streams shown – ATLAS, Molonglo, Phoenix and Tucana III – were previously known; the rest were discovered from DES data and named in consultation with schoolchildren in Chile and Australia. (Dark Energy Survey) SURVEY The first public data University of Illinois at Urbana­ release from the Dark Energy Champaign, said: “The huge Survey shows new stellar amount of data in these images streams, signs of small galax­ and catalogues will bring new MARS NASA’s remaining active Mars Exploration Rover, Opportunity, is still ies being swallowed up by the scientic fi applications, challenges returning surprising data after 5000 sols. A recent focus has been on textural Milky Way, as well as fulfilling and opportunities for discovery.” stripes in Perseverance Valley on the slopes of Endeavour crater. The surface looks its primary goal of mapping dark The 11 new stellar streams corrugated, with bands of more and less gravel in an otherwise finer-grained matter and dark energy. are an example of this. “They sediment. The bands run parallel to the slope. The stripes (left) look like features The data from the r fi st three teach us about the formation found on Earth (Hawaii, right) which formed by repeated freezing and thawing of years of operations of the DES and structure of the Milky Way wet sediment. More water freezes in finer-grained areas, pushing out larger grains cover one­ eighth of the sky, the and its dark matter halo. Stellar and pebbles, accentuating the pattern over many cycles. The stripes on Mars may full survey footprint of 5000 streams give us a snapshot of a have formed in freeze–thaw cycles, possibly at a time when the obliquity of Mars’s square degrees. Matias Carrasco larger galaxy being built out of rotation axis was much higher and ice accumulated away from the poles. But Kind, DES release scientist at the smaller ones,” said Nora Shipp of surface processing by wind, water or ice – recently or in the distant past – may also US National Center for Super­ the University of Chicago. account for the stripes. (Washington Univ. in St Louis/NASA) computing Applications at the http://des.ncsa.illinois.edu/releases/dr1 http://www.nasa.gov/rovers 2.10 A&G • April 2018 • Vol. 59 • aandg.org Downloaded from https://academic.oup.com/astrogeo/article-abstract/59/2/2.10/4935789 by Ed 'DeepDyve' Gillespie user on 16 March 2018

Journal

Astronomy & GeophysicsOxford University Press

Published: Apr 1, 2018

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