Procedures for the Interactive Analysis of Point Sources from the ROSAT XRT / PSPC All-Sky Survey

Details Procedures for the Interactive Analysis of Point Sources from the ROSAT XRT / PSPC All-Sky Survey Procedures for the Interactive Analysis of Point Sources from the ROSAT XRT / PSPC All-Sky Survey

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...283.1037b&link_type=abstract

Astronomy and Astrophysics, Vol. 283, NO. 3/MAR(III), P.1037, 1994

Astronomy and Astrophysics

Astrophysics

20

Scientific paper

The ROSAT mission performed the first imaging all-sky survey in soft X-rays (0.1 - 2.4 keV) in 1990-1991. During the survey, roughly 50000 sources were detected, most of them on a basis of only a few photons. The analysis of ROSAT all-sky survey point-source data involves additional complications when compared to the normal techniques used for pointed-observation data. The determination of the correct exposure time and the selection of the background region are examples of critical problems. A set of interactive techniques for the extraction of source and background photons is described. Preliminary results from the survey observation of the black-hole candidate LMC X-3 are presented.

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