activity
20002006
most citedThe ROSAT Deep Survey: VI. X-ray sources and Optical identifications of the Ultra Deep Survey

164 citations · 316 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph2006★ 64 cited

Spitzer IRS Spectra of Optically Faint Infrared Sources with Weak Spectral Features

D. W. Weedman, B. T. Soifer, Lei Hao +15

Spectra have been obtained with the low-resolution modules of the Infrared Spectrograph (IRS) on the Spitzer Space Telescope (Spitzer) for 58 sources having f(24 micron) > 0.75…

astro-ph2005★ 1 cited

UV Luminosity Function at z~4, 3, and 2

Marcin Sawicki, David Thomson

We use very deep (R_lim=27) UGRI imaging to study the evolution of the faint end of the UV-selected galaxy luminosity function from z~4 to z~2. We find that the number of sub-L* ga…

astro-ph2003★ 36 cited

Optical Spectroscopy of K-selected Extremely Red Galaxies

Lin Yan, Dave Thompson, Tom Soifer

We have obtained spectroscopic redshifts for 24 red galaxies from a sample with median Ks=18.7 and F814W - Ks > 4, using the Keck telescope. These EROshave high resolution morpholo…

astro-ph2001★ 41 cited

The relative abundances of ellipticals and starbursts among the Extremely Red Galaxies

F. Mannucci, L. Pozzetti, D. Thompson +5

We present J band observations of a complete sample of 57 red galaxies selected to have K<20 and R-K>5.3. We use the Pozzetti and Mannucci (2000) prescriptions, based on the R-K an…

astro-ph2001★ 164 cited

The ROSAT Deep Survey: VI. X-ray sources and Optical identifications of the Ultra Deep Survey

I. Lehmann, G. Hasinger, M. Schmidt +10

We describe in this paper the ROSAT Ultra Deep Survey (UDS), an extension of the ROSAT Deep Survey (RDS) in the Lockman Hole. The UDS reaches a flux level of 1.2 x 10E-15 erg/cm2/s…

astro-ph2000★ 10 cited

B3 0003+387: AGN Marked Large-Scale Structure at z=1.47?

D. Thompson, O. P. Aftreth, B. T. Soifer

We present evidence for a significant overdensity of red galaxies, as much as a factor of 14 over comparable field samples, in the field of the z=1.47 radio galaxy B3 0003+387. The…