SIMBAD references

2001A&A...373...63S - Astronomy and Astrophysics, volume 373, 63-99 (2001/7-1)

The second ROSAT PSPC survey of M 31 and the complete ROSAT PSPC source list.

SUPPER R., HASINGER G., LEWIN W.H.G., MAGNIER E.A., VAN PARADIJS J., PIETSCH W., READ A.M. and TRUEMPER J.

Abstract (from CDS):

This paper reports the results of the analysis of the second ROSAT PSPC survey of M 31 performed in summer 1992. We compare our results with those of the first survey, already published in Supper et al. (1997A&A...317..328S). Within the ∼10.7deg2 field of view, 396 individual X-ray sources are detected in the second survey data, of which 164 are new detections. When combined with the first survey, this result in a total of 560 X-ray sources in the field of M 31. Their (0.1keV-2.0keV) fluxes range from 7x10–15erg/cm2/s to 7.6x10–12erg/cm2/s, and of these 560 sources, 55 are tentatively identified with foreground stars, 33 with globular clusters, 16 with supernova remnants, and 10 with radio sources and galaxies (including M 32). A comparison with the results of the Einstein M 31 survey reveals 491 newly detected sources, 11 long term variable sources, and 7 possible transient sources. Comparing the two ROSAT surveys, we come up with 34 long term variable sources and 8 transient candidates. For the M 31 sources, the observed luminosities range from 4x1035erg/s to 4x1038erg/s. The total (0.1keV-2.0keV) luminosity of M 31 is (3.4±0.3)x1039erg/s, distributed approximately equally between the bulge and disk. Within the bulge region, the luminosity of a possible diffuse component combined with faint sources below the detection threshold is (2.0±0.5)x1038erg/s. An explanation in terms of hot gaseous emission leads to a maximum total gas mass of (1.0±0.3)x106M.

Abstract Copyright:

Journal keyword(s): galaxies: fundamental parameters - galaxies: individual: M 31 - galaxies: spiral - X-rays: galaxies

VizieR on-line data: <Available at CDS (J/A+A/373/63): table5.dat table6.dat table7.dat table8.dat>

Nomenclature: Table 5: [SHL2001] NNN (Nos 1-396).

Simbad objects: 572

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2001A&A...373...63S and select 'bookmark this link' or equivalent in the popup menu


2020.09.28-01:45:06

© Université de Strasbourg/CNRS

    • Contact