395 citations · 1.6k across the 31 of their papers we have counts for
11 papers · 1 filter
Spin-down of the accreting magnetar candidate 4U 0114+65: possible first evidence for a strong coupling regime
Graciela Sanjurjo-Ferrín, Jose Miguel Torrejón, Konstantin Postnov +3
4U~0114+65 is a high-mass X-ray binary composed of the B1\,Ia supergiant V*~V662~Cas and one of the slowest known accreting neutron stars, with a spin period of 9.4 ks. In 20…
Cyclical accretion regime change in the slow X-ray pulsar 4U 0114+65 observed with Chandra
Graciela Sanjurjo-Ferrín, 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…
Revealing the state transition of Cen X-3 at high spectral resolution with Chandra
Graciela Sanjurjo-Ferrín, Jose Miguel Torrejón, Lida Oskinova +4
Cen X-3 is a compact, high-mass X-ray binary (HMXRB), likely powered by Roche lobe overflow. We present a phase-resolved X-ray spectral and timing analysis of a target of opportuni…
X-ray variability of the HMXB Cen X-3: evidence for inhomogeneous accretion flows
Graciela Sanjurjo-Ferrín, Jose Miguel Torrejón, Konstantin Postnov +3
Cen X-3 is a compact high mass X-ray binary likely powered by Roche lobe overflow. We present a phase-resolved X-ray spectral and timing analysis of two pointed XMM-Newton observat…
XMM-Newton spectroscopy of the accreting magnetar candidate 4U0114+65
Graciela Sanjurjo, Jose Miguel Torrejon, Konstantin Postnov +3
4U011465 is one of the slowest known X-ray pulsars. We present an analysis of a pointed observation by the XMM-Newton X-ray telescope. The energy-resolved light curve, the time-…
ESO-Athena Synergy White Paper
P. Padovani, F. Combes, M. Diaz Trigo +29
The Advanced Telescope for High ENergy Astrophysics (Athena) is the X-ray observatory mission selected by ESA within its Cosmic Vision 2015-2025 programme to address the Hot and En…
Low-luminosity stellar wind accretion onto neutron stars in HMXBs
Konstantin Postnov, Lida Oskinova, Jose Miguel Torrejón
Features and applications of quasi-spherical settling accretion onto rotating magnetized neutron stars in high-mass X-ray binaries are discussed. The settling accretion occurs in w…
Discovery of Rapidly Moving Partial X-ray Absorbers within gamma Cassiopeiae
K. Hamaguchi, L. Oskinova, C. M. P. Russell +4
Gamma Cassiopeiae is an enigmatic Be star with unusually strong hard X-ray emission. The Suzaku observatory detected six rapid X-ray spectral hardening events called "softness dips…
High-Energy Properties of the Enigmatic Be Star gamma Cassiopeiae
C. R. Shrader, K. Hamaguchi, S. J. Sturner +3
We present the results of a broad-band X-ray study of the enigmatic Be star Gamma Cassiopeiae (herein gamma Cas) based on observations made with both the Suzaku and INTEGRAL observ…
A Deep Chandra Observation of the Giant HII Region N11 I. X-ray Sources in the Field
Yael Naze, Q. Daniel Wang, You-Hua Chu +2
A very sensitive X-ray investigation of the giant HII region N11 in the LMC was performed using the Chandra X-ray Observatory. The 300ks observation reveals X-ray sources with lumi…
The Hot and Energetic Universe: A White Paper presenting the science theme motivating the Athena+ mission
Kirpal Nandra, Didier Barret, Xavier Barcons +237
This White Paper, submitted to the recent ESA call for science themes to define its future large missions, advocates the need for a transformational leap in our understanding of tw…