3.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PaviaIT2.8k papers
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- Istituto Nazionale di Fisica Nucleare, Sezione di BolognaIT2.5k papers
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- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT2.4k papers
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- Institut de Recherche sur les Lois Fondamentales de l'UniversFR2.4k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT2.4k papers
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7 papers · 2 filters
IGR J08408--4503: a new recurrent Supergiant Fast X-ray Transient
D. Gotz, M. Falanga, F. Senziani +3
The supergiant fast X-ray transient IGR J08408-4503 was discovered by INTEGRAL on May 15, 2006, during a bright flare. The source shows sporadic recurrent short bright flares, reac…
Light Pseudoscalar Bosons, PVLAS and the Double Pulsar J0737-3039
Arnaud Dupays, Marco Roncadelli
Light Pseudoscalar Bosons (LPBs) coupled to two photons are predicted by many realistic extensions of the Standard Model and give rise to birefringence and dichroism in a light bea…
A new symbiotic low mass X-ray binary system: 4U 1954+319
F. Mattana, D. Gotz, M. Falanga +4
4U 1954+319 was discovered 25 years ago, but only recently has a clear picture of its nature begun to emerge. We present for the first time a broad-band spectrum of the source and…
Long term spectral variability in the Soft Gamma-ray Repeater SGR 1900+14
A. Tiengo, P. Esposito, S. Mereghetti +8
We present a systematic analysis of all the BeppoSAX data of SGR1900+14. The observations spanning five years show that the source was brighter than usual on two occasions: ~20 day…
The first XMM-Newton observations of the Soft Gamma-ray Repeater SGR 1900+14
S. Mereghetti, P. Esposito, A. Tiengo +6
A ~50 ks XMM-Newton observation of SGR 1900+14 has been carried out in September 2005, after almost three years during which no bursts were detected from this soft gamma-ray repeat…
XMM-Newton observations of Soft Gamma-ray Repeaters
S. Mereghetti, P. Esposito, A. Tiengo
All the confirmed Soft Gamma-ray Repeaters have been observed with the EPIC instrument on the XMM-Newton satellite. We review the results obtained in these observations, providing…
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…