2 citations · 2 across the 7 of their papers we have counts for
7 papers
XMM-Newton multi-year campaign on NGC 55 ULX-1: Resolving the wind and its variability with RGS
C. Pinto, S. Caserta, F. Barra +12
Winds are an important ingredient in the evolution of X-ray binary (XRB) systems, particularly those at high accretion rates such as ultra-luminous X-ray sources (ULXs), because th…
Recasting the nature of INTEGRAL hard X-ray transients previously classified as active galactic nuclei
V. Sguera, L. Sidoli
We present new broad-band X-ray results aimed at the identification and characterization of four poorly studied hard X-ray transients discovered by INTEGRAL: IGR J16426+6536, IGR J…
Low-frequency spectra of neutron star + OB supergiant binaries: Does wind density drive persistent and flaring modes of accretion?
J. van den Eijnden, L. Sidoli, M. Díaz Trigo +10
Neutron star high-mass X-ray binaries are well-studied in wavebands between the infrared and hard X-rays. Their low-frequency millimeter and radio properties, on the other hand, re…
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…
4XMM J181330.1-175110: a new supergiant fast X-ray transient
M. Marelli, L. Sidoli, M. Polletta +3
Supergiant Fast X-ray Transients (SFXT) are a sub-class of High Mass X-ray Binaries (HMXB) in which a compact object accretes part of the clumpy wind of the blue supergiant compani…
New interpretation of the two hard X-ray sources IGR J17503-2636 and IGR J17507-2647
L. Sidoli, V. Sguera, P. Esposito +4
We report on the results of X-ray observations (XMM-Newton, INTEGRAL and Swift) of two hard X-ray sources, IGR J17503-2636 and IGR J17507-2647, whose nature is not fully elucidated…
Unveiling the short and faint X-ray transient nature of IGR J17419-2802
V. Sguera, L. Sidoli
We report new X-ray results from the INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL), Swift, Chandra, and XMM-Newton observations of the hitherto poorly studied unidenti…