M. Perri

TL;DR: In this article, the authors presented the first detection of the nearby (z=0.084) low-luminosity BL Lac object 1ES 1741+196 in the very high energy (VHE: E>100 GeV) band.

TL;DR: In this article, the authors presented a new measurement of the cosmic X-ray background (CXRB) in the 1.5-7 keV energy band, performed by exploiting the Swift XRT data archive.

TL;DR: The X-ray telescope on board the Swift satellite for gamma-ray burst astronomy has been exposed to the radiation of the space environment since launch in November 2004, with the generation of dark current and charge trapping sites that result in degradation of the spectral resolution and an increase of the instrumental background as discussed by the authors.

TL;DR: The HERMES project as discussed by the authors proposes a modular observatory of huge overall collecting area consisting in a fleet of small satellites in low orbits, with sub-microsecond time resolution and wide energy band (keV-MeV).

TL;DR: In this article, the authors show that the temperature of the X-ray Telescope CCD is correlated with the average elevation of the Earth above the XRT radiator, which is in turn related to the targets that Swift observes in an orbit.