Finding a 24-day orbital period for the X-ray binary 1A 1118-616
| dc.contributor.author | Staubert, R. | |
| dc.contributor.author | Pottschmidt, Katja | |
| dc.contributor.author | Doroshenko, V. | |
| dc.contributor.author | Wilms, J. | |
| dc.contributor.author | Suchy, S. | |
| dc.contributor.author | Rothschild, R. | |
| dc.contributor.author | Santangelo, A. | |
| dc.date.accessioned | 2023-09-26T18:41:23Z | |
| dc.date.available | 2023-09-26T18:41:23Z | |
| dc.date.issued | 2011-01-18 | |
| dc.description.abstract | We report the first determination of the binary period and orbital ephemeris of the Be X-ray binary containing the pulsar 1A 1118-616 (35 years after the discovery of the source). The orbital period is found to be Porb = 24.0 ± 0.4days. The source was observed by RXTE during its last large X-ray outburst in January 2009, which peaked at MJD 54845.4, by taking short observations every few days, covering an elapsed time comparable to the orbital period. Using the phase connection technique, pulse arrival time delays could be measured and an orbital solution determined. The data are consistent with a circular orbit and the time of 90 degrees longitude was found to be Tπ/2 = MJD 54845.37(10), which is coincident with that of the peak X-ray flux. | en_US |
| dc.description.sponsorship | We acknowledge the support through DLR grant 50 OR 0702. R.St. likes to thank Klaus Werner and Dima Klochkov for discussions about the optical companion and the analysis of the ASM light curve, respectively. R.E.R. and S.S. acknowledge the support under NASA contract NAS5-30720. We thank Robin Corbet for pointing us to SAX J2103.5+4545 and for his data collection of the Corbet-diagram. | en_US |
| dc.description.uri | https://www.aanda.org/articles/aa/abs/2011/03/aa15737-10/aa15737-10.html | en_US |
| dc.format.extent | 5 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2hkhx-vetb | |
| dc.identifier.citation | Staubert, R., K. Pottschmidt, V. Doroshenko, J. Wilms, S. Suchy, R. Rothschild, and A. Santangelo. “Finding a 24-Day Orbital Period for the X-Ray Binary 1A 1118-616.” Astronomy & Astrophysics 527 (March 1, 2011): A7. https://doi.org/10.1051/0004-6361/201015737. | en_US |
| dc.identifier.uri | https://doi.org/10.1051/0004-6361/201015737 | |
| dc.identifier.uri | http://hdl.handle.net/11603/29868 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | EDP Sciences | en_US |
| dc.relation.isAvailableAt | The University of Maryland, Baltimore County (UMBC) | |
| dc.relation.ispartof | UMBC Center for Space Sciences and Technology | |
| dc.relation.ispartof | UMBC Physics Department | |
| dc.relation.ispartof | UMBC Faculty Collection | |
| dc.rights | This item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author. | en_US |
| dc.rights | Attribution 4.0 International (CC BY 4.0) | * |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | * |
| dc.title | Finding a 24-day orbital period for the X-ray binary 1A 1118-616 | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0002-4656-6881 | en_US |