6 papers
Blind Line Search System: BLiSS
Luis Abalo, Graciela Sanjurjo-FerrÃn, Jessica Planelles-Villalva +2
The increasing sensitivity and spectral resolution of current and forthcoming X-ray observatories, including \textit{XRISM} and \textit{NewAthena}, are expected to reveal increasin…
Spectroscopic modeling of ionic structure in stellar winds of high-mass X-ray binaries
G. Sanjurjo-FerrÃn, V. Grinberg, I. El Mellah +6
High-mass X-ray binaries (HMXBs) provide a natural laboratory to study radiatively driven stellar winds under strong external X-ray irradiation. As the compact object moves along i…
A thousand looks at X Persei: X-ray spectroscopy at high time resolution
G. Sanjurjo-FerrÃn, J. M. Torrejón, J. J. Rodes-Roca +3
X Persei is a classical Be/X-ray binary composed of an O9.5III-B0V Be-type star and a neutron star (NS). The NS exhibits coherent pulsations with a spin period of ~837 s, orbiting…
Iron line diagnostics of the stellar wind in X1908+075
J. Planelles-Villalva, J. M. Torrejón, J. J. Rodes-Roca +1
Aims. X1908+075 is a supergiant X-ray binary (SgXB) composed of an evolved OB star and a neutron star (NS) in a 4.4-day orbit. We aim to characterize the stellar wind, constrain th…
High-resolution X-ray spectroscopy of Cen X-3 with XMM-Newton
J. J. Rodes-Roca, J. M. Torrejón, G. Sanjurjo-FerrÃn +1
The spectral analysis of two XMM-Newton observations of the high-mass X-ray binary system Cen X-3 is presented. In particular, it is focused on the eclipse and out-of-eclipse spect…
Cyclical accretion regime change in the slow X-ray pulsar 4U 0114+65 observed with Chandra
Graciela Sanjurjo-FerrÃn, Jose Miguel Torrejón, Konstantin Postnov +5
4U 0114+65 is a high-mass X-ray binary system formed by the luminous supergiant B1Ia, known as V{*} V662 Cas, and one of the slowest rotating neutron stars (NS) with a spin period…