Showing astro-phShow all
3 papers · 1 filter
astro-ph2002
On the nature of Extremely Red Objects: the 2 Ms Chandra Deep Field-North Survey results
C. Vignali, D. M. Alexander, F. E. Bauer +4
Understanding the nature of Extremely Red Objects [EROs; (I-K)>=4] is one of the most challenging issues in observational cosmology. Here we report on the X-ray constraints provide…
astro-ph2002
Exotic sources detected in the 1 Ms Chandra Deep Field North Survey
D. M. Alexander, F. E. Bauer, W. N. Brandt +4
We provide constraints on optically faint (I>=24) X-ray sources, z>6 AGN, Very Red Objects (VROs; I-K>=4), and optically faint radio sources using the 1 Ms Chandra Deep Field North…
astro-ph2001
The 1 Ms Chandra Survey of the HDF-N: Populations at the Faintest X-ray Fluxes
Ann E. Hornschemeier, CDF-N Team
The Chandra Deep Field-North survey, which has at its center the Hubble Deep Field-North, has reached an exposure of 1 Ms and is now available to the public for analysis. This grea…