NuSTAR AND SWIFT OBSERVATIONS OF THE VERY HIGH STATE IN GX 339-4: WEIGHING THE BLACK HOLE WITH X-RAYS
We present results from spectral fitting of the very high state of GX 339-4 with Nuclear Spectroscopic Telescope Array (NuSTAR) and Swift. We use relativistic reflection modeling to measure the spin of the black hole and inclination of the inner disk and find a spin of 0.95[subscript -0.08][superscr...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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IOP Publishing
2017
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| Online Access: | http://hdl.handle.net/1721.1/109455 https://orcid.org/0000-0003-2538-0188 |
| _version_ | 1810995110973800448 |
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| author | Parker, M. L. Tomsick, J. A. Kennea, J. A. Miller, J. M. Harrison, F. A. Barret, D. Boggs, S. E. Christensen, F. E. Craig, W. W. Fabian, A. C. Fürst, F. Hailey, C. J. Romano, P. Stern, D. Walton, D. J. Zhang, W. W. Grinberg, Victoria |
| author2 | MIT Kavli Institute for Astrophysics and Space Research |
| author_facet | MIT Kavli Institute for Astrophysics and Space Research Parker, M. L. Tomsick, J. A. Kennea, J. A. Miller, J. M. Harrison, F. A. Barret, D. Boggs, S. E. Christensen, F. E. Craig, W. W. Fabian, A. C. Fürst, F. Hailey, C. J. Romano, P. Stern, D. Walton, D. J. Zhang, W. W. Grinberg, Victoria |
| author_sort | Parker, M. L. |
| collection | MIT |
| description | We present results from spectral fitting of the very high state of GX 339-4 with Nuclear Spectroscopic Telescope Array (NuSTAR) and Swift. We use relativistic reflection modeling to measure the spin of the black hole and inclination of the inner disk and find a spin of 0.95[subscript -0.08][superscript +0.02] and inclination of 30° ± 1° (statistical errors). These values agree well with previous results from reflection modeling. With the exceptional sensitivity of NuSTAR at the high-energy side of the disk spectrum, we are able to constrain multiple physical parameters simultaneously using continuum fitting. By using the constraints from reflection as input for the continuum fitting method, we invert the conventional fitting procedure to estimate the mass and distance of GX 339-4 using just the X-ray spectrum, finding a mass of 9.0[subscript -1.2][superscript +1.6]M[subscript ⊙] and distance of 8.4 ± 0.9 kpc (statistical errors). |
| first_indexed | 2024-09-23T13:52:04Z |
| format | Article |
| id | mit-1721.1/109455 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:52:04Z |
| publishDate | 2017 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1094552022-10-01T17:37:49Z NuSTAR AND SWIFT OBSERVATIONS OF THE VERY HIGH STATE IN GX 339-4: WEIGHING THE BLACK HOLE WITH X-RAYS Parker, M. L. Tomsick, J. A. Kennea, J. A. Miller, J. M. Harrison, F. A. Barret, D. Boggs, S. E. Christensen, F. E. Craig, W. W. Fabian, A. C. Fürst, F. Hailey, C. J. Romano, P. Stern, D. Walton, D. J. Zhang, W. W. Grinberg, Victoria MIT Kavli Institute for Astrophysics and Space Research Grinberg, Victoria We present results from spectral fitting of the very high state of GX 339-4 with Nuclear Spectroscopic Telescope Array (NuSTAR) and Swift. We use relativistic reflection modeling to measure the spin of the black hole and inclination of the inner disk and find a spin of 0.95[subscript -0.08][superscript +0.02] and inclination of 30° ± 1° (statistical errors). These values agree well with previous results from reflection modeling. With the exceptional sensitivity of NuSTAR at the high-energy side of the disk spectrum, we are able to constrain multiple physical parameters simultaneously using continuum fitting. By using the constraints from reflection as input for the continuum fitting method, we invert the conventional fitting procedure to estimate the mass and distance of GX 339-4 using just the X-ray spectrum, finding a mass of 9.0[subscript -1.2][superscript +1.6]M[subscript ⊙] and distance of 8.4 ± 0.9 kpc (statistical errors). 2017-05-31T14:25:25Z 2017-05-31T14:25:25Z 2016-04 2015-10 Article http://purl.org/eprint/type/JournalArticle 2041-8213 http://hdl.handle.net/1721.1/109455 Parker, M. L. et al. “NuSTAR AND SWIFT OBSERVATIONS OF THE VERY HIGH STATE IN GX 339-4: WEIGHING THE BLACK HOLE WITH X-RAYS.” The Astrophysical Journal 821.1 (2016): L6. © 2016 The American Astronomical Society https://orcid.org/0000-0003-2538-0188 en_US http://dx.doi.org/10.3847/2041-8205/821/1/l6 The Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf IOP Publishing IOP Publishing |
| spellingShingle | Parker, M. L. Tomsick, J. A. Kennea, J. A. Miller, J. M. Harrison, F. A. Barret, D. Boggs, S. E. Christensen, F. E. Craig, W. W. Fabian, A. C. Fürst, F. Hailey, C. J. Romano, P. Stern, D. Walton, D. J. Zhang, W. W. Grinberg, Victoria NuSTAR AND SWIFT OBSERVATIONS OF THE VERY HIGH STATE IN GX 339-4: WEIGHING THE BLACK HOLE WITH X-RAYS |
| title | NuSTAR AND SWIFT OBSERVATIONS OF THE VERY HIGH STATE IN GX 339-4: WEIGHING THE BLACK HOLE WITH X-RAYS |
| title_full | NuSTAR AND SWIFT OBSERVATIONS OF THE VERY HIGH STATE IN GX 339-4: WEIGHING THE BLACK HOLE WITH X-RAYS |
| title_fullStr | NuSTAR AND SWIFT OBSERVATIONS OF THE VERY HIGH STATE IN GX 339-4: WEIGHING THE BLACK HOLE WITH X-RAYS |
| title_full_unstemmed | NuSTAR AND SWIFT OBSERVATIONS OF THE VERY HIGH STATE IN GX 339-4: WEIGHING THE BLACK HOLE WITH X-RAYS |
| title_short | NuSTAR AND SWIFT OBSERVATIONS OF THE VERY HIGH STATE IN GX 339-4: WEIGHING THE BLACK HOLE WITH X-RAYS |
| title_sort | nustar and swift observations of the very high state in gx 339 4 weighing the black hole with x rays |
| url | http://hdl.handle.net/1721.1/109455 https://orcid.org/0000-0003-2538-0188 |
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