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X-ray properties of spiral galaxies
Roberto Soria
X-ray studies of nearby spiral galaxies with star formation allow us to investigate temperature and spatial distribution of the hot diffuse plasma, and to carry out individual and…
A High Resolution X-ray spectrum of the LINER Galaxy M81
M. J. Page, A. A. Breeveld, R. Soria +1
We present the soft X-ray spectrum of the LINER galaxy M81 from a long observation with the XMM-Newton RGS. As well as continuum emission from the active nucleus, the spectrum show…
XMM-Newton observations of the spiral galaxy M74 (NGC 628)
Roberto Soria, Albert K. H. Kong
The face-on spiral galaxy M74 (NGC 628) was observed by XMM on 2002 February 2. In total, 21 sources are found in the inner 5' from the nucleus (after rejection of a few sources as…
Do NLS1s and ultrasoft AGN have irradiated, warped accretion disks?
E. M. Puchnarewicz, R. Soria
When Beppo-SAX measured the 0.1--12 keV spectrum of RE J1034+396, observations in the optical, UV and EUV were also taken within a few weeks. This multiwavelength spectrum placed v…
State transitions in LMC X-3
Roberto Soria, Mat Page, Kinwah Wu
We carried out a multiwavelenght study of the black-hole candidate LMC X-3 with XMM-Newton. The system showed a transition to a low-hard state, in which the X-ray spectrum was well…
Discrete and diffuse X-ray emission in the nucleus and disk of the starburst spiral galaxy M83
Roberto Soria, Kinwah Wu
We have studied the face-on, barred spiral M83 (NGC 5236) with Chandra. Eighty-one point sources are detected (above 3.5-sigma) in the ACIS S3 image: 15 of them are within the inne…