Risa Wechsler
  • Home
  • Who
    • GFC Group
    • CV
  • What
    • Research
    • Collaborations
    • Publications
    • Press
    • Technical Talks
    • Public Talks
    • Teaching
  • Where
  • News
  • Useful things

DESI & the Mystery of Dark Energy on the BBC!

3/29/2016

 

The Dark Energy Spectroscopic Instrument (DESI) on Kitt Peak. from Mark Radice on Vimeo.

Dark Energy Survey finds more Celestial Neighbors

10/17/2015

 
Scientists on the Dark Energy Survey, using one of the world’s most powerful digital cameras, have discovered eight more faint celestial objects hovering near our Milky Way galaxy. Signs indicate that they—like the objects found by the same team earlier this year—are likely dwarf satellite galaxies, the smallest and closest known form of galaxies.

Read more at
​​http://www.symmetrymagazine.org/article/august-2015/dark-energy-survey-finds-more-celestial-neighbors

Open access to the Universe

8/8/2015

 
New article from Symmetry Magazine about our trillion particle simulations:

A small team of astrophysicists and computer scientists have created some of the highest-resolution snapshots yet of a cyber version of our own cosmos. Called the Dark Sky Simulations, they’re among a handful of recent simulations that use more than 1 trillion virtual particles as stand-ins for all the dark matter that scientists think our universe contains. 

They’re also the first trillion-particle simulations to be made publicly available, not only to other astrophysicists and cosmologists to use for their own research, but to everyone. The Dark Sky Simulations can now be accessed through a visualization program in coLaboratory, a newly announced tool created by Google and Project Jupyter that allows multiple people to analyze data at the same time.

Read more at

http://www.symmetrymagazine.org/article/august-2014/open-access-to-the-universe

Scientists Release Largest Map Yet of Dark Matter in the Cosmos

4/14/2015

 
From NPR, about our DES mass maps:

Scientists have released the first of several dark matter maps of the cosmos.

​Researchers from the Dark Energy Survey used data captured by the Dark Energy Camera, a 570-megapixel imaging device they say is one of the world's most powerful digital cameras, to put together the largest contiguous map of dark matter created. They presented their findings Monday at a meeting of the American Physical Society in Baltimore.

The scientists say the map covers only about 3 percent of the area of sky. They hope it will improve understanding of the role dark matter plays in the creation of galaxies — and to investigate dark energy. Here is the map:
Picture
Read more at
http://www.npr.org/sections/thetwo-way/2015/04/14/399562522/scientists-release-largest-map-yet-of-dark-matter-in-the-cosmos

Scientists to map Universe in 3D

5/5/2014

 
New article from symmetry magazine about the DESI Survey -- 

Maps do more than tell us where we are. Rich with information elegantly arranged, they give us a way to assimilate our vast world. The clearer the map, the more confidently we set out to explore, looking for something it doesn’t show.
In a few years, scientists will come out with a new map of a third of the sky, one that will go deeper and bring that depth into sharper focus than any survey has yet achieved. It will pinpoint in three dimensions the locations of 25 million galaxies and quasars, pulling back the curtains on the history of the universe’s expansion over more than half of the age of the universe.

Read more at http://www.symmetrymagazine.org/article/april-2014/scientists-to-map-universe-in-3-d-hd

<<Previous

    Tidbits 

    News, papers, and tidbits from Risa and her Galaxy Formation and Cosmology Group at KIPAC / Stanford University.

    Archives

    July 2019
    May 2019
    August 2018
    July 2018
    October 2017
    March 2016
    October 2015
    August 2015
    June 2015
    April 2015
    May 2014
    September 2012

    Categories

    All
    Media
    News
    Papers
    Press

    RSS Feed

© COPYRIGHT 2017. ALL RIGHTS RESERVED.
  • Home
  • Who
    • GFC Group
    • CV
  • What
    • Research
    • Collaborations
    • Publications
    • Press
    • Technical Talks
    • Public Talks
    • Teaching
  • Where
  • News
  • Useful things