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A Multi-wavelength search for Black Widows and Redbacks counterparts of candidate -ray millisecond pulsars
C. Braglia, R. P. Mignani, A. Belfiore +6
The wealth of detections of millisecond pulsars (MSPs) in -rays by {\em Fermi} has spurred searches for these objects among the several unidentified -ray sources. Interesting…
Radio pulsations from the -ray millisecond pulsar PSR J2039-5617
A. Corongiu, R. P. Mignani, A. S. Seyffert +9
The predicted nature of the candidate redback pulsar 3FGL\,J2039.65618 was recently confirmed by the discovery of -ray millisecond pulsations (Clark et al. 2020, hereafter Pa…
A Supernova Candidate at z=0.092 in XMM-Newton Archival Data
G. Novara, P. Esposito, A. Tiengo +14
During a search for X-ray transients in the XMM-Newton archive within the EXTraS project, we discovered a new X-ray source that is detected only during a ~5 min interval of a ~21 h…
Scientific prospects for a mini-array of ASTRI telescopes: a gamma-ray TeV data challenge
F. Pintore, A. Giuliani, A. Belfiore +19
ASTRI is a project aiming at the realization of a gamma-ray imaging Cherenkov telescope that observes the sky in the TeV band. Recently, the development of a mini-array (MA) of AST…
EXTraS discovery of an X-ray superflare from an L dwarf
A. De Luca, B. Stelzer, A. J. Burgasser +13
We present the first detection of an X-ray flare from an ultracool dwarf of spectral class L. The event was identified in the EXTraS database of XMM-Newton variable sources, and it…
The Ultraluminous X-ray sources population of the galaxy NGC 7456
F. Pintore, M. Marelli, R. Salvaterra +28
Ultraluminous X-ray sources (ULXs) are a class of accreting compact objects with X-ray luminosities above 1e39 erg/s. The ULX population counts several hundreds objects but only a…