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The Chandra Deep Field North Survey. IX. Extended X-ray Sources
F. E. Bauer, D. M. Alexander, W. N. Brandt +8
The ~1 Ms Chandra Deep Field North observation is used to study the extended X-ray sources in the region surrounding the Hubble Deep Field North (HDF-N), yielding the most sensitiv…
The Chandra Deep Field North Survey. X. X-ray Emission from Very Red Objects
D. M. Alexander, C. Vignali, F. E. Bauer +4
The multi-wavelength properties of Very Red Objects (VROs; I-K>=4) are largely unknown as many of these sources are optically faint (I>=24) and undetected at most wavelengths. Here…
The Chandra Deep Field North Survey. VIII. X-ray Constraints on Spiral Galaxies from 0.4 < z < 1.5
A. E. Hornschemeier, W. N. Brandt, D. M. Alexander +5
We present a statistical X-ray study of spiral galaxies in the Hubble Deep Field-North and its Flanking Fields using the Chandra Deep Field North 1 Ms dataset. We find that approxi…
Blue irregular variable stars in the Small Magellanic Cloud from EROS2 : Herbig Ae/Be or classical Be stars ?
J. P. Beaulieu, W. J. de Wit, H. J. G. M. L. Lamers +6
Using data from the EROS2 microlensing survey, we report the discovery of two blue objects with irregular photometric behaviour of -0.4 mag on time scales of 20 to 200…
The Chandra Deep Field North Survey. VI. The Nature of the Optically Faint X-ray Source Population
D. M. Alexander, W. N. Brandt, A. E. Hornschemeier +4
We provide constraints on the nature of the optically faint (I>=24) X-ray source population from a 1 Ms Chandra exposure of a 8.4x8.4 arcmin region containing the Hubble Deep Field…
The Chandra Deep Field North Survey. V. 1 Ms Source Catalogs
W. N. Brandt, D. M. Alexander, A. E. Hornschemeier +13
An extremely deep X-ray survey (about 1 Ms) of the Hubble Deep Field North and its environs (about 450 arcmin^2) has been performed with the Advanced CCD Imaging Spectrometer on bo…