CONFIRMATION OF A HIGH MAGNETIC FIELD IN GRO J1008−57
| dc.contributor.author | Bellm, Eric C. | |
| dc.contributor.author | Fürst, Felix | |
| dc.contributor.author | Pottschmidt, Katja | |
| dc.contributor.author | Tomsick, John A. | |
| dc.contributor.author | Boggs, Steven E. | |
| dc.contributor.author | Chakrabarty, Deepto | |
| dc.contributor.author | Christensen, Finn E. | |
| dc.contributor.author | Craig, William W. | |
| dc.contributor.author | Hailey, Charles J. | |
| dc.contributor.author | Harrison, Fiona A. | |
| dc.contributor.author | Stern, Daniel | |
| dc.contributor.author | Walton, Dominic J. | |
| dc.contributor.author | Wilms, Jörn | |
| dc.contributor.author | Zhang, William W. | |
| dc.date.accessioned | 2023-09-06T14:32:59Z | |
| dc.date.available | 2023-09-06T14:32:59Z | |
| dc.date.issued | 2014-08-21 | |
| dc.description.abstract | GRO J1008−57 is a high-mass X-ray binary for which several claims of a cyclotron resonance scattering feature near 80 keV have been reported. We use NuSTAR, Suzaku, and Swift data from its giant outburst of 2012 November to confirm the existence of the 80 keV feature and perform the most sensitive search to date for cyclotron scattering features at lower energies. We find evidence for a 78⁺³₋₂ keV line in the NuSTAR and Suzaku data at >4σ significance, confirming the detection using Suzaku alone by Yamamoto et al. A search of both the phase-averaged and phase-resolved data rules out a fundamental at lower energies with optical depth larger than 5% of the 78 keV line. These results indicate that GRO J1008−57 has a magnetic field of 6.7 × 10¹²(1 + z) G, the highest among known accreting pulsars. | en_US |
| dc.description.sponsorship | This work was supported under NASA contract No. NNG08FD60C and uses data from the NuSTAR mission, a project led by the California Institute of Technology, managed by the Jet Propulsion Laboratory, and funded by the National Aeronautics and Space Administration. We thank the NuSTAR Operations team for executing the ToO observation and the Software and Calibration teams for analysis support. This research has used the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA). J.W. acknowledges partial support from Deutsches Zentrum für Luftund Raumfahrt grant 50 OR 1113. | en_US |
| dc.description.uri | https://iopscience.iop.org/article/10.1088/0004-637X/792/2/108 | en_US |
| dc.format.extent | 7 pages | en_US |
| dc.genre | journal articles | en_US |
| dc.identifier | doi:10.13016/m2yrsh-cxby | |
| dc.identifier.citation | Bellm, Eric C., Felix Fürst, Katja Pottschmidt, John A. Tomsick, Steven E. Boggs, Deepto Chakrabarty, Finn E. Christensen, et al. “Confirmation of a High Magnetic Field in GRO J1008−57.” The Astrophysical Journal 792, no. 2 (August 2014): 108. https://doi.org/10.1088/0004-637X/792/2/108. | en_US |
| dc.identifier.uri | https://doi.org/10.1088/0004-637X/792/2/108 | |
| dc.identifier.uri | http://hdl.handle.net/11603/29579 | |
| dc.language.iso | en_US | en_US |
| dc.publisher | IOP Publishing | 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 Faculty Collection | |
| dc.relation.ispartof | UMBC Physics Department | |
| dc.rights | This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law. | en_US |
| dc.rights | Public Domain Mark 1.0 | * |
| dc.rights.uri | http://creativecommons.org/publicdomain/mark/1.0/ | * |
| dc.title | CONFIRMATION OF A HIGH MAGNETIC FIELD IN GRO J1008−57 | en_US |
| dc.type | Text | en_US |
| dcterms.creator | https://orcid.org/0000-0002-4656-6881 | en_US |