29 citations · 54 across the 10 of their papers we have counts for
11 papers
Rapid Orbital Decay in the Ultracompact Double-degenerate Binary eRASSU J060839.5704014
Rahul Sharma, Chandreyee Maitra, Frank Haberl +9
We present timing and spectral analysis of the recently identified ultracompact double-degenerate (DD) white dwarf binary eRASSU J060839.5704014 using observations from NICER an…
A comprehensive catalogue of high-mass X-ray binaries in the Large Magellanic Cloud detected during the first eROSITA all-sky survey
D. Kaltenbrunner, C. Maitra, F. Haberl +9
The Magellanic Clouds, the closest star-forming galaxies to the Milky Way, offer an excellent environment to study high-mass X-ray binaries. While the Small Magellanic Cloud has be…
Broadband study of the Be/X-ray binary pulsar eRASSU J012422.9-724248 in the Magellanic Bridge, near the Eastern Wing of the Small Magellanic Cloud
Haonan Yang, Chandreyee Maitra, Frank Haberl +4
The first four all-sky surveys with eROSITA the soft X-ray instrument on board the Spektrum-Roentgen-Gamma (SRG) satellite revealed a new X-ray source, eRASSU J012422.9-724248, in…
Don't torque like that. Measuring compact object magnetic fields with analytic torque models
J. J. R. Stierhof, E. Sokolova-Lapa, K. Berger +10
Context. Changes of the rotational period observed in various magnetized accreting sources are generally attributed to the interaction between the in-falling plasma and the large-s…
Optical flares due to X-ray irradiation during BeXRB major outbursts
G. Vasilopoulos
Be X-ray binaries (BeXRBs) may show strong X-ray and optical variability, and can exhibit some of the brightest outbursts that break through the Eddington limit. Major X-ray outbur…
Detection of the optical counterpart of the transient ULX NGC300 ULX-1: a nascent black hole - neutron star binary?
André-Nicolas Chené, Georgios Vasilopoulos, Lidia M. Oskinova +1
The end points of massive star evolution are poorly known, especially those in interacting binary systems containing compact objects, such as neutron stars or black holes. Such sys…
Two decades of optical variability of Small Magellanic Cloud high-mass X-ray binaries
Helena Treiber, Georgios Vasilopoulos, Charles Bailyn +2
We present an analysis of the long-term optical/IR behavior of 111 high-mass X-ray binaries (HMXBs) in the Small Magellanic Cloud based on data from the OGLE collaboration. Most sy…
Broadband study of the Be X-ray binary RX J0520.5-6932 during its outburst in 2024
H. N. Yang, C. Maitra, G. Vasilopoulos +18
A new giant outburst of the Be X-ray binary RX J0520.5-6932 was detected and subsequently observed with several space-borne and ground-based instruments. This study presents a comp…
eRASSUJ060839.5-704014: A double degenerate ultra-compact binary in the direction of the LMC
C. Maitra, F. Haberl, G. Vasilopoulos +7
Context. During four all-sky surveys (eRASS1--4), eROSITA, the soft X-ray instrument aboard Spektrum-Roentgen-Gamma (SRG) detected a new supersoft X-ray source, eRASSU J060839.5-70…
Detection of a cyclotron line in SXP 15.3 during its 2017 outburst
Chandreyee Maitra, Biswajit Paul, Frank Haberl +1
We report the results of AstroSat and NuSTAR observations of the Be/X-ray binary pulsar SXP 15.3 in the Small Magellanic Cloud during its outburst in late 2017, when the source rea…
Discovery of SXP265, a Be/X-ray binary pulsar in the Wing of the Small Magellanic Cloud
R. Sturm, F. Haberl, G. Vasilopoulos +5
We identify a new candidate for a Be/X-ray binary in the XMM-Newton slew survey and archival Swift observations that is located in the transition region of the Wing of the Small Ma…