4.7 Article

On the cyclotron absorption line and evidence of the spectral transition in SMC X-2 during 2022 giant outburst

Related references

Note: Only part of the references are listed.
Article Astronomy & Astrophysics

A Bayesian approach for torque modelling of BeXRB pulsars with application to super-Eddington accretors

A. S. Karaferias et al.

Summary: This study presents a method to estimate posterior distributions for parameters in the standard accretion torque model and binary orbital parameters for X-ray binaries using a nested sampling algorithm. The spin evolution of two Be X-ray binary systems in the Magellanic Clouds during major outbursts and a newly discovered Galactic ultra-luminous X-ray source are investigated. The method identified the more favorable torque model for each system and yielded meaningful ranges for the neutron star and orbital parameters. Contrary to standard predictions, the analysis showed that certain parameters are not proportional to each other when surpassing the Eddington limit.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2023)

Article Astronomy & Astrophysics

An Empirical Background Model for the NICER X-Ray Timing Instrument

Ronald A. Remillard et al.

Summary: The study utilized an empirical three-parameter model based on observations to predict the background spectrum of the Neutron Star Interior Composition Explorer. By applying filtering criteria to select background GTIs, the study estimated detection limits and identified the need for additional model parameters to improve predictions.

ASTRONOMICAL JOURNAL (2022)

Article Astronomy & Astrophysics

Average bolometric corrections and optical to X-ray flux measurements as a function of accretion rate for X-ray binaries

K. Anastasopoulou et al.

Summary: This paper uses spectral models from X-ray binaries and ultra-luminous X-ray sources to analyze the behavior of accretion flow and the contribution of the disc to optical emission in binary systems. The research provides valuable insights for understanding the energetics and nature of X-ray binaries.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2022)

Article Astronomy & Astrophysics

X-ray view of the 2021 outburst of SXP 15.6: Constraints on the binary orbit and magnetic field of the neutron star

G. Vasilopoulos et al.

Summary: In this study, we analyzed the spectral and temporal properties of the Be X-ray binary pulsar SXP 15.6 located in the Small Magellanic Cloud using data from NuSTAR, NICER, and Swift. The comparison of the 2021 outburst with archival data revealed consistent variability patterns, suggesting the system is in a super-critical regime. We also investigated the spin evolution of the neutron star and derived the orbital parameters.

ASTRONOMY & ASTROPHYSICS (2022)

Article Astronomy & Astrophysics

Modeling the Luminosity-dependent Pulse Profile and Emission Geometry of SMC X-2 during a Giant Outburst

Ankur Roy et al.

Summary: A recent study on the X-ray pulsar SMC X-2 reveals significant changes in its accretion state and magnetosphere during a major outburst, especially during the low-luminosity regime. By using the pulse-profile modeling code Polestar, researchers were able to determine the most likely inclination of the pulsar's spin axis and observe a transition in the emission pattern from fan- to pencil-beam. Analysis of the optical profiles also showed strong modulation during the outburst.

ASTROPHYSICAL JOURNAL (2022)

Article Astronomy & Astrophysics

PINT: A Modern Software Package for Pulsar Timing

Jing Luo et al.

Summary: PINT is a high-precision Python pulsar timing data analysis package that offers interactive data analysis and a flexible development platform for timing applications. Developed without referencing other traditional pulsar timing software packages, PINT utilizes well-debugged public Python packages and modern software development schemes to ensure reliability and accuracy.

ASTROPHYSICAL JOURNAL (2021)

Article Astronomy & Astrophysics

Be X-ray binaries in the SMC as indicators of mass-transfer efficiency

Serena Vinciguerra et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2020)

Article Astronomy & Astrophysics

Cyclotron lines in highly magnetized neutron stars

R. Staubert et al.

ASTRONOMY & ASTROPHYSICS (2019)

Article Astronomy & Astrophysics

Stingray: A Modern Python Library for Spectral Timing

Daniela Huppenkothen et al.

ASTROPHYSICAL JOURNAL (2019)

Article Astronomy & Astrophysics

NGC300 ULX1: A test case for accretion torque theory

G. Vasilopoulos et al.

ASTRONOMY & ASTROPHYSICS (2018)

Article Astronomy & Astrophysics

Luminosity dependence of the cyclotron line and evidence for the accretion regime transition in V 0332+53

Victor Doroshenko et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2017)

Article Astronomy & Astrophysics

The Slowest Spinning X-Ray Pulsar in an Extragalactic Globular Cluster

Ivan Yu. Zolotukhin et al.

ASTROPHYSICAL JOURNAL (2017)

Article Astronomy & Astrophysics

PROPELLER EFFECT IN THE TRANSIENT X-RAY PULSAR SMC X-2

Alexander A. Lutovinov et al.

ASTROPHYSICAL JOURNAL (2017)

Article Astronomy & Astrophysics

High-mass X-ray binaries in the Small Magellanic Cloud

F. Haberl et al.

ASTRONOMY & ASTROPHYSICS (2016)

Article Astronomy & Astrophysics

The Swift-BAT monitoring reveals a long-term decay of the cyclotron line energy in Vela X-1

V. La Parola et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Astronomy & Astrophysics

Suzaku view of the Be/X-ray binary pulsar GX 304-1 during Type I X-ray outbursts

Gaurava K. Jaisawal et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Astronomy & Astrophysics

High-mass X-ray binaries in the Small Magellanic Cloud

F. Haberl et al.

ASTRONOMY & ASTROPHYSICS (2016)

Article Astronomy & Astrophysics

Spectral analysis of SMC X-2 during its 2015 outburst

N. La Palombara et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Astronomy & Astrophysics

Detection of cyclotron resonance scattering feature in high-mass X-ray binary pulsar SMC X-2

Gaurava K. Jaisawal et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Astronomy & Astrophysics

CHANDRA AND SWIFT X-RAY OBSERVATIONS OF THE X-RAY PULSAR SMC X-2 DURING THE OUTBURST OF 2015

K. L. Li et al.

ASTROPHYSICAL JOURNAL (2016)

Proceedings Paper Instruments & Instrumentation

The Neutron star Interior Composition Explorer (NICER): design and development

Keith C. Gendreau et al.

SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY (2016)

Article Astronomy & Astrophysics

An unexpected drop in the magnetic field of the X-ray pulsar V0332+53 after the bright outburst occurred in 2015

G. Cusumano et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Review Astronomy & Astrophysics

High-mass X-ray binaries in the Milky Way

Roland Walter et al.

ASTRONOMY AND ASTROPHYSICS REVIEW (2015)

Article Astronomy & Astrophysics

Catalogue of Be/X-ray binary systems in the Small Magellanic Cloud: X-ray, optical and IR properties

M. J. Coe et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2015)

Article Astronomy & Astrophysics

THE ARAUCARIA PROJECT. THE DISTANCE TO THE SMALL MAGELLANIC CLOUD FROM LATE-TYPE ECLIPSING BINARIES

Dariusz Graczyk et al.

ASTROPHYSICAL JOURNAL (2014)

Article Astronomy & Astrophysics

A REFLECTION MODEL FOR THE CYCLOTRON LINES IN THE SPECTRA OF X-RAY PULSARS

Juri Poutanen et al.

ASTROPHYSICAL JOURNAL (2013)

Article Astronomy & Astrophysics

THE NUCLEAR SPECTROSCOPIC TELESCOPE ARRAY (NuSTAR) HIGH-ENERGY X-RAY MISSION

Fiona A. Harrison et al.

ASTROPHYSICAL JOURNAL (2013)

Article Astronomy & Astrophysics

MHD instabilities in accretion mounds - I. 2D axisymmetric simulations

Dipanjan Mukherjee et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2013)

Article Astronomy & Astrophysics

Spectral formation in accreting X-ray pulsars: bimodal variation of the cyclotron energy with luminosity

P. A. Becker et al.

ASTRONOMY & ASTROPHYSICS (2012)

Proceedings Paper Engineering, Aerospace

The Neutron star Interior Composition ExploreR (NICER): an Explorer mission of opportunity for soft x-ray timing spectroscopy

Keith C. Gendreau et al.

SPACE TELESCOPES AND INSTRUMENTATION 2012: ULTRAVIOLET TO GAMMA RAY (2012)

Review Astronomy & Astrophysics

Be/X-ray binaries

Pablo Reig

ASTROPHYSICS AND SPACE SCIENCE (2011)

Article Astronomy & Astrophysics

Orbital period determinations for four SMC Be/X-ray binaries

M. P. E. Schurch et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2011)

Article Astronomy & Astrophysics

On the orbital parameters of Be/X-ray binaries in the Small Magellanic Cloud

L. J. Townsend et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2011)

Article Astronomy & Astrophysics

Completing the puzzle of the 2004-2005 outburst in V0332+53: the brightening phase included

S. S. Tsygankov et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2010)

Article Astronomy & Astrophysics

Methods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs

P. A. Evans et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2009)

Article Astronomy & Astrophysics

The MAXI Mission on the ISS: Science and Instruments for Monitoring All-Sky X-Ray Images

Masaru Matsuoka et al.

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN (2009)

Article Astronomy & Astrophysics

Spectral distribution of Be/X-ray binaries in the Small Magellanic Cloud

V. A. McBride et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2008)

Article Astronomy & Astrophysics

Discovery of a flux-related change of the cyclotron line energy in Hercules X-1

R. Staubert et al.

ASTRONOMY & ASTROPHYSICS (2007)

Article Astronomy & Astrophysics

Thermal and bulk comptonization in accretion-powered X-ray pulsars

Peter A. Becker et al.

ASTROPHYSICAL JOURNAL (2007)

Article Astronomy & Astrophysics

Catalogue of high-mass X-ray binaries in the Galaxy (4th edition)

Q. Z. Liu et al.

ASTRONOMY & ASTROPHYSICS (2006)

Article Astronomy & Astrophysics

Forty eclipsing binaries in the Small Magellanic Cloud: fundamental parameters and Cloud distance

RW Hilditch et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2005)

Article Astronomy & Astrophysics

Spectral formation in X-ray pulsars: Bulk comptonization in the accretion shock

PA Becker et al.

ASTROPHYSICAL JOURNAL (2005)

Review Astronomy & Astrophysics

Classical Be stars

JM Porter et al.

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC (2003)

Article Astronomy & Astrophysics

Diamagnetic screening of the magnetic field in accreting neutron stars

AR Choudhuri et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2002)

Article Astronomy & Astrophysics

The discovery of an outburst and pulsed X-ray flux from SMC X-2 using the Rossi X-ray Timing Explorer

RHD Corbet et al.

ASTROPHYSICAL JOURNAL (2001)

Article Astronomy & Astrophysics

On the absorption of X-rays in the interstellar medium

J Wilms et al.

ASTROPHYSICAL JOURNAL (2000)