Spectral Energy Distributions of Southern Binary X-Ray Sources
The rapid variability of X-ray binaries (XRBs) produces a wide range of X-ray states that are linked to activity across the electromagnetic spectrum. It is particularly challenging to study a sample of sources large enough to include all types in their various states, and to cover the full range of...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2023-01-01
|
| Series: | The Astrophysical Journal Supplement Series |
| Subjects: | |
| Online Access: | https://doi.org/10.3847/1538-4365/ace4b9 |
| _version_ | 1797685712143777792 |
|---|---|
| author | John M. Dickey S. D. Vrtilek Michael McCollough Bram Boroson John A. Tomsick Charles Bailyn Jay M. Blanchard Charlotte Johnson |
| author_facet | John M. Dickey S. D. Vrtilek Michael McCollough Bram Boroson John A. Tomsick Charles Bailyn Jay M. Blanchard Charlotte Johnson |
| author_sort | John M. Dickey |
| collection | DOAJ |
| description | The rapid variability of X-ray binaries (XRBs) produces a wide range of X-ray states that are linked to activity across the electromagnetic spectrum. It is particularly challenging to study a sample of sources large enough to include all types in their various states, and to cover the full range of frequencies that show flux density variations. Simultaneous observations with many telescopes are necessary. In this project, we monitor 48 XRBs with seven telescopes across the electromagnetic spectrum from 5 × 10 ^9 to 10 ^19 Hz, including ground-based radio, IR, and optical observatories, and five instruments on two spacecraft over a 1 week period. We construct spectral energy distributions and matching X-ray color–intensity diagrams for 20 sources that have the most extensive detections. Our observations are consistent with several models of expected behavior proposed for the different classes: we detect no significant radio emission from pulsars or atoll sources, but we do detect radio emission from Z sources in the normal or horizontal branch, and from black holes in the high/soft, low/hard, and quiescent states. The survey data provide useful constraints for more detailed models predicting behavior from the different classes of sources. |
| first_indexed | 2024-03-12T00:55:15Z |
| format | Article |
| id | doaj.art-85c0f66a144a470194505e49d61b87c7 |
| institution | Directory Open Access Journal |
| issn | 0067-0049 |
| language | English |
| last_indexed | 2024-03-12T00:55:15Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal Supplement Series |
| spelling | doaj.art-85c0f66a144a470194505e49d61b87c72023-09-14T13:53:55ZengIOP PublishingThe Astrophysical Journal Supplement Series0067-00492023-01-0126813510.3847/1538-4365/ace4b9Spectral Energy Distributions of Southern Binary X-Ray SourcesJohn M. Dickey0https://orcid.org/0000-0002-6300-7459S. D. Vrtilek1https://orcid.org/0000-0002-7521-9897Michael McCollough2https://orcid.org/0000-0002-8384-3374Bram Boroson3https://orcid.org/0000-0001-6877-9506John A. Tomsick4https://orcid.org/0000-0001-5506-9855Charles Bailyn5https://orcid.org/0000-0002-3510-8666Jay M. Blanchard6https://orcid.org/0000-0002-2756-395XCharlotte Johnson7School of Natural Sciences, Private Bag 37, University of Tasmania , Hobart, TAS 7001, Australia ; john.dickey@utas.edu.auHarvard-Smithsonian Center for Astrophysics , 60 Garden Street, Cambridge, MA 02138, USAHarvard-Smithsonian Center for Astrophysics , 60 Garden Street, Cambridge, MA 02138, USADept. of Physics and Astronomy, University of South Carolina , 712 Main Street, Columbia, SC 29208 USASpace Sciences Laboratory, University of California, Berkeley , 7 Gauss Way, Berkeley, CA 94720-7450, USADepartment of Astronomy, Yale University , P.O. Box 208101, New Haven, CT 06520-8101, USASchool of Natural Sciences, Private Bag 37, University of Tasmania , Hobart, TAS 7001, Australia ; john.dickey@utas.edu.au; National Radio Astronomy Observatory , P.O. Box O, 1003 Lopezville Road, Socorro, NM 87801-0387, USADept. of Physics and Astronomy, University of South Carolina , 712 Main Street, Columbia, SC 29208 USAThe rapid variability of X-ray binaries (XRBs) produces a wide range of X-ray states that are linked to activity across the electromagnetic spectrum. It is particularly challenging to study a sample of sources large enough to include all types in their various states, and to cover the full range of frequencies that show flux density variations. Simultaneous observations with many telescopes are necessary. In this project, we monitor 48 XRBs with seven telescopes across the electromagnetic spectrum from 5 × 10 ^9 to 10 ^19 Hz, including ground-based radio, IR, and optical observatories, and five instruments on two spacecraft over a 1 week period. We construct spectral energy distributions and matching X-ray color–intensity diagrams for 20 sources that have the most extensive detections. Our observations are consistent with several models of expected behavior proposed for the different classes: we detect no significant radio emission from pulsars or atoll sources, but we do detect radio emission from Z sources in the normal or horizontal branch, and from black holes in the high/soft, low/hard, and quiescent states. The survey data provide useful constraints for more detailed models predicting behavior from the different classes of sources.https://doi.org/10.3847/1538-4365/ace4b9X-ray binary starsHigh mass x-ray binary starsLow-mass x-ray binary stars |
| spellingShingle | John M. Dickey S. D. Vrtilek Michael McCollough Bram Boroson John A. Tomsick Charles Bailyn Jay M. Blanchard Charlotte Johnson Spectral Energy Distributions of Southern Binary X-Ray Sources The Astrophysical Journal Supplement Series X-ray binary stars High mass x-ray binary stars Low-mass x-ray binary stars |
| title | Spectral Energy Distributions of Southern Binary X-Ray Sources |
| title_full | Spectral Energy Distributions of Southern Binary X-Ray Sources |
| title_fullStr | Spectral Energy Distributions of Southern Binary X-Ray Sources |
| title_full_unstemmed | Spectral Energy Distributions of Southern Binary X-Ray Sources |
| title_short | Spectral Energy Distributions of Southern Binary X-Ray Sources |
| title_sort | spectral energy distributions of southern binary x ray sources |
| topic | X-ray binary stars High mass x-ray binary stars Low-mass x-ray binary stars |
| url | https://doi.org/10.3847/1538-4365/ace4b9 |
| work_keys_str_mv | AT johnmdickey spectralenergydistributionsofsouthernbinaryxraysources AT sdvrtilek spectralenergydistributionsofsouthernbinaryxraysources AT michaelmccollough spectralenergydistributionsofsouthernbinaryxraysources AT bramboroson spectralenergydistributionsofsouthernbinaryxraysources AT johnatomsick spectralenergydistributionsofsouthernbinaryxraysources AT charlesbailyn spectralenergydistributionsofsouthernbinaryxraysources AT jaymblanchard spectralenergydistributionsofsouthernbinaryxraysources AT charlottejohnson spectralenergydistributionsofsouthernbinaryxraysources |