The Northern ROSAT All-Sky (NORAS) Galaxy Cluster Survey. I. X-Ray Properties of Clusters Detected as Extended X-Ray Sources
- H. Boehringer, W. Voges, J. Truemper
- Physics
- 15 March 2000
In the construction of an X-ray-selected sample of galaxy clusters for cosmological studies, we have assembled a sample of 495 X-ray sources found to show extended X-ray emission in the first…
X-ray spectral properties of active galactic nuclei in the Chandra deep field south
We present a detailed X-ray spectral analysis of the sources in the 1Ms catalog of the Chandra Deep Field South (CDFS) taking advantage of optical spectroscopy and photometric redshifts for 321…
The Chandra Deep Field-South: Optical Spectroscopy. I.
- G. Szokoly, J. Bergeron, A. Zirm
- Physics
- 12 December 2003
We present the results of our spectroscopic follow-up program of the X-ray sources detected in the 942 ks exposure of the Chandra Deep Field-South (CDFS). A total of 288 possible counterparts were…
Chandra Deep Field South: The 1 Ms Catalog
- R. Giacconi, A. Zirm, C. Norman
- Physics
- 1 April 2002
In this paper we present the source catalog obtained from a 942 ks exposure of the Chandra Deep Field South (CDFS), using the Advanced CCD Imaging Spectrometer (ACIS-I) on the Chandra X-ray…
First Results from the X-Ray and Optical Survey of the Chandra Deep Field South
- R. Giacconi, P. Rosati, W. Zheng
- Physics
- 17 July 2000
We present our first results from 120 ks of X-ray observations obtained with the Advanced CCD Imaging Spectrometer on the Chandra X-Ray Observatory. The field of the two combined exposures is 0.096…
The Chandra Deep Field-South: The 1 Million Second Exposure
We present the main results from our 940 ks observation of the Chandra Deep Field-South using the source catalog described in an accompanying paper by Giacconi et al. We extend the measurement of…
The Extended Chandra Deep Field-South Survey: Chandra Point-Source Catalogs
- B. Lehmer, W. Brandt, C. Vignali
- Physics
- 24 June 2005
We present Chandra point-source catalogs for the Extended Chandra Deep Field-South (E-CDF-S) survey. The E-CDF-S consists of four contiguous 250 ks Chandra observations covering an approximately…
Discovery of a periodic pulsating binary X-ray source in Hercules from Uhuru.
- H. Tananbaum, H. Gursky, E. Kellogg, R. Levinson, E. Schreier, R. Giacconi
- Physics
- 15 June 1972
We have discovered a new pulsating X-ray source with a 1.24-sec period in the constellation Hercules. Analysis of 5 months of data has shown the existence of periodic variations in the intensity of…
New Results from the X-Ray and Optical Survey of the Chandra Deep Field-South: The 300 Kilosecond Exposure. II.
- P. Tozzi, P. Rosati, R. Giacconi
- Physics
- 1 March 2001
We present results from 300 ks of X-ray observations of the Chandra Deep Field-South. The field of the four combined exposures is now 0.1035 deg2, and we reach a flux limit of 10-16 ergs s-1 cm-2 in…
The ROSAT Deep Cluster Survey: The X-Ray Luminosity Function out to z = 0.8
- P. Rosati, R. Della Ceca, C. Norman, R. Giacconi
- Physics
- 27 October 1997
We present the X-ray luminosity function (XLF) of the ROSAT Deep Cluster Survey sample over the redshift range 0.05-0.8. Our results are derived from a complete flux-limited subsample of 70 galaxy…
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