X-ray survey of the Large Magellanic Cloud by ROSAT

Trümper, J.; Hasinger, G.; Aschenbach, B.; Bräuninger, H.; Briel, U. G.; Burkert, Wolfgang; Fink, H. H.; Pfeffermann, E.; Pietsch, W.; Predehl, P.; Schmitt, J. H. M. M.; Voges, W.; Zimmermann, U.; Beuermann, K.

doi:10.1038/349579a0

Cited by 144 publications

(68 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Observations were made with the ROSAT X-ray telescope (Trümper et al 1991) and High Resolution Imager (HRI; David et al 1995), in pointing mode. The initial observation of M92 (17.9 ksec live time) took place during 4-8 April 1994; the observation of M13 which was to follow was aborted for instrumental reasons and rescheduled for the fall.…”

Section: Observations and Data Reductionmentioning

confidence: 99%

ROSAT HRI observations of the globular clusters M13 and M92

Fox¹,

Lewin²,

Margon³

et al. 1996

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

We report on 40 kiloseconds of ROSAT HRI observations of the globular cluster M92 (NGC 6341) and 20 kiloseconds of observations of the globular cluster M13 (NGC 6205). We find that the low-luminosity (10 32.5 erg sec −1 at 7.5 kpc) source previously observed near the core of M92 with the ROSAT PSPC remains unresolved at HRI resolution; we can identify it with M92 with 99 per cent confidence. In M13 we find that the source seen with the ROSAT PSPC lies within the core and is possibly associated with the cluster (96 per cent confidence). We find probabilities of 99.8 per cent (M92) and 98 per cent (M13) for the presence of additional unresolved emission within these globular clusters. We interpret these results in light of current theories regarding the low-luminosity sources.

show abstract

Section: Observations and Data Reductionmentioning

confidence: 99%

ROSAT HRI observations of the globular clusters M13 and M92

Fox¹,

Lewin²,

Margon³

et al. 1996

Monthly Notices of the Royal Astronomical Society

View full text Add to dashboard Cite

show abstract

“…First discovered with the Einstein satellite (Long et al 1981), they were recognized as a class only after the more sensitive observations with ROSAT (Trümper et al 1991). The suggestion that the X-ray emission of supersoft sources is caused by steady nuclear burning at the surface of white dwarfs with masses near the Chandrasekhar limit (Van den Heuvel et al 1992, see also Shara et al 1977;Iben 1982) gained credibility when the nova GQ Mus was found to be a supersoft source (Ögelman et al 1993).…”

Section: Introductionmentioning

confidence: 99%

The complex X-ray spectrum of the supersoft source

Bearda

Hartmann

Ebisawa

et al. 2002

A&A

View full text Add to dashboard Cite

Abstract. We present the X-ray spectrum of MR Vel / RX J0925.7−4758, obtained with the Medium Energy Grating spectrometer of the Chandra X-ray Telescope. The simplest models used by earlier authors, stellar atmospheres in combination with a thermal plasma in collisional ionization equilibrium, cannot explain the spectrum. Neither does a photo-ionized plasma. We identify P Cygni profiles of Fe XVII and O VIII, from which we conclude that these lines arise in a wind. We conclude that major uncertainty exists about the bolometric luminosity of MR Vel, and perhaps of supersoft sources in general, so that the theoretical prediction that this luminosity derives from steady nuclear burning cannot be verified.

show abstract

“…All pairs were observed with the HRI near the field center (the most off-center, RR 259, is ≈7 off-axis) (for a full description of the ROSAT satellite and of the instrument, see Trümper 1983;Trümper et al 1991;Zombeck et al 1995). As described in Table 1, two observations (RR 210 and RR 216) were obtained in AO7 by us, all others have been extracted from the ROSAT archive.…”

Section: Results Of the Rosat Data Analysismentioning

confidence: 99%

ROSAT-HRIobservations of six southern galaxy pairs

Trinchieri

Rampazzo

2001

A&A

View full text Add to dashboard Cite

Abstract. We present the detailed analysis of the X-ray data for 6 pairs, isolated or in poor groups, observed at high resolution with the ROSAT HRI . In all cases, the stronger X-ray source is associated with the brighter early-type member and is extended. The extent varies from galactic to group scale, from 3 (RR 210b) to 182 kpc( RR 22a). The fainter members are detected only in two pairs, RR 210 and RR 259. Except for one case, no significant substructures have been detected in the X-ray maps, possibly also as a consequence of the poor statistics. The core radii of the X-ray surface brightness profiles are in the range 1-3 kpc. The distribution of the luminosities of galaxies in pairs encompasses a very wide range of both luminosities and LX/LB ratios, in spite of the very small number of objects studied so far. Our data provide no evidence that pair membership affects the X-ray properties of galaxies. Observation are discussed in the context of the pair/group evolution.

show abstract

X-ray survey of the Large Magellanic Cloud by ROSAT

Cited by 144 publications

References 21 publications

ROSAT HRI observations of the globular clusters M13 and M92

ROSAT HRI observations of the globular clusters M13 and M92

The complex X-ray spectrum of the supersoft source

ROSAT-HRIobservations of six southern galaxy pairs

Contact Info

Product

Resources

About