6 papers · 1 filter
New XMM-Newton analysis of three bright X-ray sources in M31 globular clusters, including a new black hole candidate
R. Barnard, H. Stiele, D. Hatzidimitriou +6
We present detailed analysis of three globular cluster X-ray sources in the XMM-Newton extended survey of M31. The X-ray counterpart to the M31 globular cluster Bo 45 (XBo 45) was…
M31N 2005-09c: a fast FeII nova in the disk of M31
D. Hatzidimitriou, P. Reig, A. Manousakis +3
Classical novae are quite frequent in M~31. However, very few spectra of M31 novae have been studied to date, especially during the early decline phase. Our aim is to study the pho…
Spectroscopy of the brightest optical counterparts of X-ray sources in the direction of M~31 and M~33
D. Hatzidimitriou, W. Pietsch, Z. Misanovic +2
Recent surveys of the Local Group spiral Galaxies M31 and M33 with XMM-Newton yielded a large number of X-ray sources. As part of the effort to identify and classify the objects re…
On the Properties of the HI shells in the Small Magellanic CLoud
D. Hatzidimitriou, S. Stanimirovic, F. Maragoudaki +3
There are 509 expanding neutral hydrogen shells catalogued in the Small Magellanic Cloud (SMC), all apparently very young, with dynamical ages of a few Myr. To examine their relati…
XMM-Newton survey of the Local Group galaxy M 33
W. Pietsch, Z. Misanovic, F. Haberl +3
In an XMM-Newton raster observation of the bright Local Group spiral galaxy M 33 we study the population of X-ray sources (X-ray binaries, supernova remnants) down to a 0.2--4.5 ke…
Chemical Abundances in the Carina dSph Galaxy
Tammy A. Smecker-Hane, Georgi I. Mandushev, James E. Hesser +3
We report on the chemical abundances of stars in the Carina dwarf spheroidal galaxy (dSph) derived from low-resolution spectra. We have determined values of [Fe/H] for 52 stars fro…