Search Publications
High spectral resolution X-ray observations of AGN
Kaastra, J. S.
A brief overview of some highlights of high spectral resolution X-ray observations of AGN is given, mainly obtained with the RGS of XMM-Newton. Future prospects for such observations with XMM-Newton are given.
Constraining the neutron star equation of state using XMM-Newton
Kaastra, J.; Méndez, M.; Jonker, P. G. +1 more
We have identified three possible ways in which future XMM-Newton, observations can provide significant constraints on the equation of state of neutron stars. First, using a long observation of the neutron star X-ray transient Cen X-4 in quiescence one can use the RGS spectrum to constrain the interstellar extinction to the source. This removes th…
Active galaxies
Matt, G.
In this paper I will review, in an unavoidably incomplete and biased way, the main results obtained by XMM-Newton on Active Galactic Nuclei. I will then highlight the major issues still open in which XMM-Newton can still give important contributions, expecially if the observing programs will shift in the future towards more long exposures of singl…
Galactic X-ray source populations
Motch, C.
The landscape of Galactic X-ray sources made of accreting binaries, isolated objects and active stellar coronae has been significantly modified by the advent of the Chandra, XMM-Newton and INTEGRAL satellites. New types of relatively low X-ray luminosity X-ray binaries have been unveiled in the Galactic disc, while deep observations of the central…
Young star clusters in the Antennae galaxies and NGC 1487
Lehnert, M. D.; Vacca, W. D.; Chandar, R. +3 more
We estimate the dynamical masses of several young ({≈ 10} Myr) massive star clusters in two interacting galaxies, NGC 4038/4039 (``The Antennae") and NGC 1487, under the assumption of virial equilibrium. These are compared with photometric mass estimates. A dynamical mass substantially higher than the photometric estimate could indicate non-virial…
Doing physics in star-forming regions with XMM-Newton
Montmerle, T.
Star-forming regions have been observed in X-rays since the first generation of satellites in the late 70s. They are very rich in magnetically-controlled X-ray phenomena: stellar flares and star-disk interactions in hundreds of T Tauri stars, confined winds in massive stars, etc. More recently, in a few low-mass stars, X-ray evidence has been foun…
``Resolving" neutron stars physics and geometry
Caraveo, P. A.
The unprecedented harvest of X-ray photons detected from dozens of isolated neutron stars has made it possible to glimpse at their emission mechanisms as well as at their emission geometry. Rotating hot spot(s), superimposed to the global thermal emission from the neutron star surface, are seen from several objects, allowing to probe the stars' ex…
X-Ray observations of the Galactic Centre with Suzaku
Koyama, K.; Nobukawa, M.; Mori, H. +2 more
We report on the diffuse X-ray emission from the Galactic Centre (GCDX) observed with the X-ray Imaging Spectrometer (XIS) on board the Suzaku satellite. The highly accurate energy calibration and extremely low background of the XIS provide many new facts on the GCDX. These are (1) the origin of the lines at 6.7 and 7.0 keV is collisional excitati…
XMM-Newton: The next decade for cool star research
Schmitt, J. H. M. M.
In this article I will highlight selected results from XMM-Newton observations of stellar coronae, emphasizing the specific XMM-Newton capabilities in terms of high-resolution spectroscopy, its long-look capability and its optical monitor. I will focus on results on ``normal", cool stars and present science areas hitherto largely unexploired by XM…
The XMM-Newton view of magnetars
Tiengo, A.; Mereghetti, S.; Esposito, P.
Anomalous X-ray Pulsars and Soft Gamma-ray Repeaters are believed to be magnetars: isolated neutron stars powered by the decay of extremely high magnetic fields. We review some of the main results obtained with \xmm and discuss the prospects for future observations of this small but extremely interesting class of objects.