2.4k citations · 8.7k across the 147 of their papers we have counts for
10 papers · 1 filter
A variable absorption feature in the X-ray spectrum of a magnetar
Andrea Tiengo, Paolo Esposito, Sandro Mereghetti +9
Soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are slowly rotating, isolated neutron stars that sporadically undergo episodes of long-term flux enhancement (out…
The variable X-ray emission of PSR B0943+10
Sandro Mereghetti, Andrea Tiengo, Paolo Esposito +1
The old pulsar PSR B0943+10 (P=1.1 s, characteristic age tau=5 Myr) is the best example of mode-switching radio pulsar. Its radio emission alternates between a highly organized sta…
The XMM-Newton survey of the Small Magellanic Cloud: The X-ray point-source catalogue
R. Sturm, F. Haberl, W. Pietsch +8
Local-Group galaxies provide access to samples of X-ray source populations of whole galaxies. The XMM-Newton survey of the Small Magellanic Cloud (SMC) completely covers the bar an…
A strongly magnetized pulsar within grasp of the Milky Way's supermassive black hole
N. Rea, P. Esposito, J. A. Pons +21
The center of our Galaxy hosts a supermassive black hole, Sagittarius (Sgr) A*. Young, massive stars within 0.5 pc of SgrA* are evidence of an episode of intense star formation nea…
The hot-blackbody spectral excess in low-luminosity High-Mass X-Ray Binaries
N. La Palombara, S. Mereghetti, L. Sidoli +2
We report on the main results obtained thanks to an observation campaign with XMM-Newton of four persistent, low-luminosity (Lx ~ 10^34 erg/s) and long-period (P > 200 s) Be accret…
Observations of the unique X-ray emitting subdwarf stars HD49798 and BD+37 442
N. La Palombara, S. Mereghetti, A. Tiengo +3
We report on the results we obtained with XMM-Newton observations of HD49798 and BD+37 442, the only two sdO stars for which X-ray emission has been observed so far. HD is a single…
The Hot and Energetic Universe: The astrophysics of supernova remnants and the interstellar medium
A. Decourchelle, E. Costantini, C. Badenes +22
The study of both supernova remnants and the hot and cold phases of the interstellar medium are essential for understanding the final stages of stellar evolution and their feedback…
The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission
Kirpal Nandra, Didier Barret, Xavier Barcons +237
This White Paper, submitted to the recent ESA call for science themes to define its future large missions, advocates the need for a transformational leap in our understanding of tw…
The outburst decay of the low magnetic field magnetar SGR 0418+5729
N. Rea, G. L. Israel, J. A. Pons +20
We report on the long term X-ray monitoring of the outburst decay of the low magnetic field magnetar SGR 0418+5729, using all the available X-ray data obtained with RXTE, SWIFT, Ch…
X-ray emission from the luminous O-type subdwarf HD 49798 and its compact companion
S. Mereghetti, N. La Palombara, A. Tiengo +4
The X-ray source RX J0648.0-4418 is the only confirmed binary system in which a compact object, most likely a massive white dwarf, accretes from a hot subdwarf companion, the brigh…