Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.5304m&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #53.04; Bulletin of the American Astronomical Society, V
Astronomy and Astrophysics
Astronomy
1
Scientific paper
We present the first direct maps of the large-scale distribution of mass in the Universe. Measurements of weak gravitational lensing from the Hubble Space Telescope COSMOS survey directly trace the 3D distribution of mass, regardless of its nature or state. They reveal a filamentary network of structures that encompass large voids and meet in massive clusters of galaxies. By comparing this to the stellar mass density from optical and near-infrered observations, and to the distribution of hot gas from XMM observations, we explore the complex relationship between dark matter and the baryons. The HST COSMOS Treasury program was supported through NASA grant HST-GO-09822 and the HST ACS CTE calibration program was supported through NASA grant HST-AR-10964.
Ellis Richard
Finoguenov Alexis
Leauthaud Alexei
Massey Richard
Rhodes John
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