On the cyclotron line in Cepheus X-4
| dc.contributor.author | McBride, V. A. | |
| dc.contributor.author | Wilms, J. | |
| dc.contributor.author | Kreykenbohm, I. | |
| dc.contributor.author | Coe, M. J. | |
| dc.contributor.author | Rothschild, R. E. | |
| dc.contributor.author | Kretschmar, P. | |
| dc.contributor.author | Pottschmidt, Katja | |
| dc.contributor.author | Fisher, J. | |
| dc.contributor.author | Hamson, T. | |
| dc.date.accessioned | 2023-10-05T23:44:08Z | |
| dc.date.available | 2023-10-05T23:44:08Z | |
| dc.date.issued | 2007-05-25 | |
| dc.description.abstract | Context.Accreting X-ray pulsars provide us with laboratories for the study of extreme gravitational and magnetic fields, hence accurate descriptions of their observational properties contribute to our understanding of this group of objects. Aims.We aim to detect a cyclotron resonance scattering feature in the Be/X-ray binary Cep X-4 and to investigate pulse profile and spectral changes through the outburst. Methods.Spectral fitting and timing analysis are employed to probe the properties of Cep X-4 during an outburst in 2002 June. Results.A previously announced cyclotron feature at 30.7 keV is confirmed, while the source shows spectral behaviour and luminosity related changes similar to those observed in previous outbursts. The long-term X-ray lightcurve shows a periodicity at 20.85 d, which could be attributed to the orbit in this Be system. | en_US |
| dc.description.sponsorship | V.A.M. would like to acknowledge the NRF (S. Africa), the British Council and Southampton University. | en_US |
| dc.description.uri | https://www.aanda.org/articles/aa/abs/2007/30/aa7238-07/aa7238-07.html | en_US |
| dc.format.extent | 6 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2ilzs-kfoy | |
| dc.identifier.citation | McBride, V. A., J. Wilms, I. Kreykenbohm, M. J. Coe, R. E. Rothschild, P. Kretschmar, K. Pottschmidt, J. Fisher, and T. Hamson. “On the Cyclotron Line in Cepheus X-4.” Astronomy & Astrophysics 470, no. 3 (August 1, 2007): 1065–70. https://doi.org/10.1051/0004-6361:20077238. | en_US |
| dc.identifier.uri | https://doi.org/10.1051/0004-6361:20077238 | |
| dc.identifier.uri | http://hdl.handle.net/11603/30000 | |
| 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.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 | On the cyclotron line in Cepheus X-4 | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0002-4656-6881 | en_US |