The Einstein Observatory Extended Medium-Sensitivity Survey. I. X-ray data and analysis
- 1. Colorado Univ., Boulder (USA)
- 2. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)
Description
This paper presents the results of the analysis of the X-ray data and the optical identification for the Einstein Observatory Extended Medium-Sensitivity Survey (EMSS). The survey consists of 835 serendipitous sources detected at or above 4 times the rms level in 1435 imaging proportional counter fields with centers located away from the Galactic plane. Their limiting sensitivities are about (5-300) x 10 to the -14th ergs/sq cm sec in the 0.3-3.5-keV energy band. A total area of 778 square deg of the high-Galactic-latitude sky has been covered. The data have been analyzed using the REV1 processing system, which takes into account the nonuniformities of the detector. The resulting EMSS catalog of X-ray sources is a flux-limited and homogeneous sample of astronomical objects that can be used for statistical studies. 82 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal, Supplement Series
- Journal Volume
- 72
- Series
- Astrophys. J., Suppl. Ser.
- Journal Page Range
- 567-619
- ISSN
- 0067-0049
- CODEN
- APJSA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21073541
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- BL LACERTAE OBJECTS; COSMIC X-RAY SOURCES; DATA PROCESSING; GALAXY NUCLEI; IDENTIFICATION SYSTEMS; INDEXES; PHOTOMETRY; SPATIAL DISTRIBUTION; VISIBLE RADIATION; X RADIATION
- Descriptors DEC
- COSMIC RADIO SOURCES; COSMIC RAY SOURCES; DISTRIBUTION; DOCUMENT TYPES; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; RADIATIONS