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Isolated neutron stars: An astrophysical perspective
Sergei Popov, Roberto Turolla
We briefly review selected results in astrophysics of neutron stars (NSs) obtained during the last two years, focusing on isolated radioquiet objects. We discuss in some details po…
The Ultraluminous X-ray Source NGC 1313 X-2 (MS 0317.7-6647) and its Environment
L. Zampieri, P. Mucciarelli, R. Falomo +5
We present new optical and {\it Chandra} observations of the field containing the ultraluminous X-ray source NGC 1313 X-2. On an ESO 3.6 m image, the {\it Chandra} error box embrac…
Optical Counterpart of The Ultraluminous X-ray Source NGC 1313 X-2
L. Zampieri, P. Mucciarelli, R. Falomo +5
We present new optical and {\it Chandra} observations of the field containing the ultraluminous X-ray source NGC1313 X-2. On an ESO 3.6 m image, the {\it Chandra} error box embrace…
Bare Quark Stars or Naked Neutron Stars ? The Case of RX J1856.5-3754
Roberto Turolla, Silvia Zane, Jeremy J. Drake
In a cool neutron star (T < 1.e6 K) endowed with a rather high magnetic field (B > 1.e13 G), a phase transition may occur in the outermost layers. As a consequence the neutron star…
Young close-by neutron stars: the Gould Belt vs. the Galactic disc
S. B. Popov, R. Turolla, M. E. Prokhorov +2
We present new population synthesis calculations of close young neutron stars. In comparison with our previous investigation we use a different neutron star mass spectrum and diffe…
RX J1856.5-3754: Bare Quark Star or Naked Neutron Star ?
S. Zane, R. Turolla, J. J. Drake
Recent Chandra observations have shown that the soft X-ray spectrum from the isolated neutron star RX J1856.5-3754 is featureless and best fitted by a blackbody, in contrast with t…