ICON
NAVO Directory
Search Publish Developers Help
X Tip: What's a "Resource"?
Hosted By
STScI Home
Space Telescope
Science Institute

Resource Record Summary

Catalog Service:
Spectra of high-mass X-ray binaries
Short name: J/A+A/590/A122
IVOA Identifier: ivo://CDS.VizieR/J/A+A/590/A122
DOI (Digital Object Identifier): 10.26093/cds/vizier.35900122
Publisher: CDS[+][Pub. ID]
More Info: https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/590/A122
VO Compliance: Level 2: This is a VO-compliant resource.		 Status: active
Registered: 2016 Jun 07 15:04:23Z
Get XML

Description


High-mass X-ray binaries are bright X-ray sources. The high-energy emission is caused by the accretion of matter from the massive companion onto a neutron star. The accreting material comes from either the strong stellar wind in binaries with supergiant companions or the circumstellar disk in Be/X-ray binaries. In either case, the H{alpha} line stands out as the main source of information about the state of the accreting material. We present the results of our monitoring program to study the long-term variability of the H{alpha} line in high-mass X-ray binaries. Our aim is to characterise the optical variability timescales and study the interaction between the neutron star and the accreting material. We fitted the H{alpha} line with Gaussian profiles and obtained the line parameters and equivalent width. The peak separation in split profiles was used to determine the disk velocity law and estimate the disk radius. The relative intensity of the two peaks (V/R ratio) allowed us to investigate the distribution of gas particles in the disk. The equivalent width was used to characterise the degree of variability of the systems. We also studied the variability of the H{alpha} line in correlation with the X-ray activity.

More About this Resource

[+] About the Resource Providers

This section describes who is responsible for this resource
[+] Status of This Resource

This section provides some status information: the resource version, availability, and relevant dates.
[+] What This Resource is About

This section describes what the resource is, what it contains, and how it might be relevant.
[+] Data Coverage Information

This section describes the data's coverage over the sky, frequency, and time.
[+] Rights and Usage Information

This section describes the rights and usage information for this data.

Available Service Interfaces

[+] Custom Service

This is service that does not comply with any IVOA standard but instead provides access to special capabilities specific to this resource.
[+] Custom Service

This is service that does not comply with any IVOA standard but instead provides access to special capabilities specific to this resource.
[+] Table Access Protocol - Auxiliary ServiceXX

This is a standard IVOA service that takes as input an ADQL or PQL query and returns tabular data.

[+] Simple Cone SearchXXSearch Me

This is a standard IVOA service that takes as input a position in the sky and a radius and returns catalog records with positions within that radius.

[+] Custom Service

This is service that does not comply with any IVOA standard but instead provides access to special capabilities specific to this resource.

Developed with the support of the National Science Foundation
under Cooperative Agreement AST0122449 with the Johns Hopkins University
The NAVO project is a member of the International Virtual Observatory Alliance

This NAVO Application is hosted by the Space Telescope Science Institute
Member
ivoa logo
 Contact Us