Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Berghoefer, Thomas"'
We present studies of the Extreme Ultraviolet (EUV) emission in the Fornax cluster of galaxies; a relatively nearby well-studied cluster with X-ray emitting cluster gas and a very large radio source. We examine both the large-scale (~size of the X-ra
Externí odkaz:
http://arxiv.org/abs/astro-ph/0101300
We present the results of a search for Extreme Ultraviolet emission in A4059, a cluster with an X-ray emitting cluster gas. Our analysis of Extreme Ultraviolet Explorer (EUVE) Deep Survey observations of this cluster shows that it is associated with
Externí odkaz:
http://arxiv.org/abs/astro-ph/0011274
We present results of a re-analysis of archival EUVE data of the central region of the Virgo cluster. We employ the new analysis method developed by Bowyer, Bergh\"ofer & Korpela (1999) and find diffuse emission reaching out to a distance of $\approx
Externí odkaz:
http://arxiv.org/abs/astro-ph/9912421
We report new EUV data on the cluster of galaxies Abell 1795. These data were taken well away from a detector defect which could have compromised earlier results on this cluster. Our new observations confirm the validity of the original data set. How
Externí odkaz:
http://arxiv.org/abs/astro-ph/9911001
We report a new analysis of diffuse EUV emission in clusters of galaxies. We find the cluster emission is strongly influenced by the variation of the telescope sensitivity over the field of view and upon the details of the subtraction of the EUV emis
Externí odkaz:
http://arxiv.org/abs/astro-ph/9907127
Lieu, Mittaz, Bonamente, Durret and Kaastra have provided a document which claims to rebut the finding by Bowyer, Berghoefer and Korpela presented at the Ringburg Workshop (April 1999) that excess EUV emission detected in some clusters of galaxies is
Externí odkaz:
http://arxiv.org/abs/astro-ph/9906249
We have used the Deep Survey telescope of EUVE to investigate shadows in the diffuse EUV/Soft X-Ray background cast by clouds in the interstellar medium. We confirm the existence of a shadow previously reported, and provide evidence for two new shado
Externí odkaz:
http://arxiv.org/abs/astro-ph/9804313
Autor:
Bowyer, Stuart, Berghoefer, Thomas W.
We have examined the hypothesis that the majority of the diffuse EUV flux in the Coma cluster is due to inverse Compton scattering of low energy cosmic ray electrons (0.16 < epsilon < 0.31 GeV) against the 3K black-body background. We present data on
Externí odkaz:
http://arxiv.org/abs/astro-ph/9804310
We present ROSAT observations of the starburst galaxy NGC 2782 (HRI plus a weak PSPC frame) and the ultraluminous infrared galaxy NGC 6240 (PSPC). The (0.1-2.4) keV spectra of both objects appear similar. However, due to better sampling spectral mode
Externí odkaz:
http://arxiv.org/abs/astro-ph/9710098
Autor:
Berghöfer, Thomas W.
Publikováno v:
Science, 1994 Sep . 265(5179), 1689-1691.
Externí odkaz:
https://www.jstor.org/stable/2884608