1999A&A...349L..21H -
Astronomy and Astrophysics, volume 349L21-24 (1999/9-1)
BeppoSAX observations of the EXS 1737.9-2952 region. I. Discovery of new X-ray sources.
HUOVELIN J., SCHULTZ J., VILHU O., HANNIKAINEN D., MUHLI P. and DUROUCHOUX P.
Abstract (from CDS):
We have observed the region centered on the hard X-ray transient EXS 1727.9-2952 near the Galactic Centre using the Narrow Field Instruments (NFI) of the BeppoSAX X-ray satellite. The soft X-ray intensity distribution in the full field of the MECS instruments revealed the existence of 10 sources. Three of them are within the 10' error circle of the EXS 1737.9-2952 nominal position. With a 3' flux collection radius, the individual background-subtracted source count rates were 0.0069-0.0162cts/s with the MECS 2 and 3 data combined, indicating source flux densities of the order 10–12erg/cm2/s (1.65-10.5keV). The non-detections in LECS observations indicate that the sources are very weak in the 0.1-2keV energy range. The locations of the new sources overlap partly with that of the CO molecular cloud observed by us with the SEST telescope at ESO. A few of the new sources are close to the VLA radio sources previously found inside the EXITE error circle of the EXS position, but none of them coincide.
Abstract Copyright:
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Journal keyword(s):
Galaxy: center - X-rays: general - X-rays: stars
Nomenclature:
Table 1: [HSV99] NN (Nos 1-10).
Simbad objects:
12
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