James Bullock | UC Irvine (original) (raw)
Papers by James Bullock
arXiv (Cornell University), Oct 11, 2000
EAS Publications Series, 2011
The Astrophysical Journal, 2009
Over the past five years, searches in Sloan Digital Sky Survey data have more than doubled the nu... more Over the past five years, searches in Sloan Digital Sky Survey data have more than doubled the number of known dwarf satellite galaxies of the Milky Way, and have revealed a population of ultra-faint galaxies with luminosities smaller than typical globular clusters, L ~ 1000 Lsun. These systems are the faintest, most dark matter dominated, and most metal poor galaxies
Proceedings of the International Astronomical Union, 2008
Disk galaxies are common in our universe and this is a source of concern for hierarchical formati... more Disk galaxies are common in our universe and this is a source of concern for hierarchical formation models like ΛCDM. Here we investigate this issue as motivated by raw merger statistics derived for galaxy-size dark matter halos from ΛCDM simulations. Our analysis shows that a majority (~ 70%) of galaxy halos withM0= 1012Matz= 0 should have accreted at least one object with…
The Astrophysical Journal, 2007
The Astrophysical Journal, 2005
The Astrophysical Journal, 2007
The Astrophysical Journal, 2007
The Astrophysical Journal, 2006
The Astrophysical Journal, 2013
The Astrophysical Journal, 2005
The Astrophysical Journal, 2011
The Astrophysical Journal, 2008
Nuclear Physics B - Proceedings Supplements, 2003
Monthly Notices of the Royal Astronomical Society, 2006
arXiv (Cornell University), Oct 11, 2000
EAS Publications Series, 2011
The Astrophysical Journal, 2009
Over the past five years, searches in Sloan Digital Sky Survey data have more than doubled the nu... more Over the past five years, searches in Sloan Digital Sky Survey data have more than doubled the number of known dwarf satellite galaxies of the Milky Way, and have revealed a population of ultra-faint galaxies with luminosities smaller than typical globular clusters, L ~ 1000 Lsun. These systems are the faintest, most dark matter dominated, and most metal poor galaxies
Proceedings of the International Astronomical Union, 2008
Disk galaxies are common in our universe and this is a source of concern for hierarchical formati... more Disk galaxies are common in our universe and this is a source of concern for hierarchical formation models like ΛCDM. Here we investigate this issue as motivated by raw merger statistics derived for galaxy-size dark matter halos from ΛCDM simulations. Our analysis shows that a majority (~ 70%) of galaxy halos withM0= 1012Matz= 0 should have accreted at least one object with…
The Astrophysical Journal, 2007
The Astrophysical Journal, 2005
The Astrophysical Journal, 2007
The Astrophysical Journal, 2007
The Astrophysical Journal, 2006
The Astrophysical Journal, 2013
The Astrophysical Journal, 2005
The Astrophysical Journal, 2011
The Astrophysical Journal, 2008
Nuclear Physics B - Proceedings Supplements, 2003
Monthly Notices of the Royal Astronomical Society, 2006