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Multiwavelength observations of 3C 454.3. I. The AGILE 2007 November campaign on the "Crazy Diamond"
S. Vercellone, A. W. Chen, V. Vittorini +68
[Abridged] We report on a multiwavelength observation of the blazar 3C 454.3 (which we dubbed "crazy diamond") carried out on November 2007 by means of the astrophysical satellites…
Studies of Neutron Stars at Optical/IR Wavelengths
R. P. Mignani, S. Bagnulo, A. De Luca +7
In the last years, optical studies of Isolated Neutron Stars (INSs) have expanded from the more classical rotation-powered ones to other categories, like the Anomalous X-ray Pulsar…
A long-period, violently-variable X-ray source in a young SNR
A. De Luca, P. A. Caraveo, S. Mereghetti +2
Observations with the Newton X-ray Multimirror Mission (XMM) show a strong periodic modulation at 6.67+/-0.03 hours of the X-ray source at the centre of the 2,000-year-old supernov…
On the polar caps of the 3 Musketeers
A. De Luca, P. A. Caraveo, S. Mereghetti +2
XMM-Newton observations of PSR B0656+14, PSR B1055-52 and Geminga have substantially increased the statistics available for these three isolated neutron stars, so apparently simila…
Phase-resolved spectroscopy of Geminga shows rotating hot spot(s)
P. A. Caraveo, A. De Luca, S. Mereghetti +2
Isolated neutron stars are seen in x-rays through their nonthermal and/or surface thermal emissions. XMM-Newton observations of the Geminga pulsar show a 43 electron volt spectrum…
Search for the Optical Counterpart of the Vela Pulsar X-ray Nebula
R. P. Mignani, A. De Luca, O. Kargaltsev +4
Observations of the Vela pulsar region with the Chandra X-ray observatory have revealed the fine structure of its synchrotron pulsar-wind nebula (PWN), which showed an overall simi…