73 citations · 155 across the 5 of their papers we have counts for
5 papers
The persistent nature of the Be X-ray binary pulsar 4U 0728-25
N. La Palombara, L. Sidoli, S. Mereghetti +2
We report the results obtained with a XMM-Newton observation, performed in April 2023, of the poorly known Galactic Be X-ray binary pulsar 4U 0728-25. It was revealed at a flux lev…
A deep observation of the X-Persei-like binary system CXOU J225355.1+624336
N. La Palombara, L. Sidoli, P. Esposito +2
We report on the follow-up observation of the persistent X-ray pulsar CXOU J225355.1+624336, discovered with the CATS@BAR project on archival data. The sourc…
Redshift, metallicity and size of two extended dwarf Irregular galaxies. A link between dwarf Irregulars and Ultra Diffuse Galaxies?
M. Bellazzini, V. Belokurov, L. Magrini +5
We present the results of the spectroscopic and photometric follow-up of two field galaxies that were selected as possible stellar counterparts of local high velocity clouds. Our a…
NuSTAR and multifrequency study of the two high-redshift blazars S5 0836+710 and PKS 2149-306
G. Tagliaferri, G. Ghisellini, M. Perri +15
The most powerful blazars are the flat spectrum radio quasars whose emission is dominated by a Compton component peaking between a few hundred keV and a few hundred MeV. We selecte…
The HELLAS2XMM survey. V. Near-Infrared observations of X-ray sources with extreme X/O ratios
M. Mignoli, L. Pozzetti, A. Comastri +12
We present the results of deep near-infrared observations of 11 hard X-ray selected sources in the Hellas2XMM survey, with faint optical magnitude (R>24) and high X-ray-to-optical…