NICER Detects a Soft X-Ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09
We report on the detection of a kilohertz quasi-periodic oscillation (QPO) with the Neutron Star Interior Composition Explorer (NICER). Analyzing approximately 165 ks of NICER exposure on the X-ray burster 4U 0614+09, we detect multiple instances of a single-peak upper kHz QPO, with centroid frequen...
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| Natura: | Articolo |
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American Astronomical Society
2019
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| Accesso online: | http://hdl.handle.net/1721.1/120989 https://orcid.org/0000-0001-8804-8946 |
| _version_ | 1826202747496562688 |
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| author | Bult, Peter Altamirano, Diego Arzoumanian, Zaven Cackett, Edward M. Chakrabarty, Deepto Doty, John Enoto, Teruaki Gendreau, Keith C. Guillot, Sebastien Homan, Jeroen Jaisawal, Gaurava K. Lamb, Frederick K. Ludlam, Renee M. Mahmoodifar, Simin Markwardt, Craig Okajima, Takashi Price, Sam Strohmayer, Tod E. Winternitz, Luke |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Bult, Peter Altamirano, Diego Arzoumanian, Zaven Cackett, Edward M. Chakrabarty, Deepto Doty, John Enoto, Teruaki Gendreau, Keith C. Guillot, Sebastien Homan, Jeroen Jaisawal, Gaurava K. Lamb, Frederick K. Ludlam, Renee M. Mahmoodifar, Simin Markwardt, Craig Okajima, Takashi Price, Sam Strohmayer, Tod E. Winternitz, Luke |
| author_sort | Bult, Peter |
| collection | MIT |
| description | We report on the detection of a kilohertz quasi-periodic oscillation (QPO) with the Neutron Star Interior Composition Explorer (NICER). Analyzing approximately 165 ks of NICER exposure on the X-ray burster 4U 0614+09, we detect multiple instances of a single-peak upper kHz QPO, with centroid frequencies that range from 400 to 750 Hz. We resolve the kHz QPO as a function of energy, and measure, for the first time, the QPO amplitude below 2 keV. We find the fractional amplitude at 1 keV is on the order of 2% rms, and discuss the implications for the QPO emission process in the context of Comptonization models. Key words: accretion, accretion disks – stars: neutron – X-rays: binaries – X-rays: individual (4U 0614+09 |
| first_indexed | 2024-09-23T12:17:07Z |
| format | Article |
| id | mit-1721.1/120989 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T12:17:07Z |
| publishDate | 2019 |
| publisher | American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/1209892022-10-01T08:53:05Z NICER Detects a Soft X-Ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09 Bult, Peter Altamirano, Diego Arzoumanian, Zaven Cackett, Edward M. Chakrabarty, Deepto Doty, John Enoto, Teruaki Gendreau, Keith C. Guillot, Sebastien Homan, Jeroen Jaisawal, Gaurava K. Lamb, Frederick K. Ludlam, Renee M. Mahmoodifar, Simin Markwardt, Craig Okajima, Takashi Price, Sam Strohmayer, Tod E. Winternitz, Luke Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Chakrabarty, Deepto We report on the detection of a kilohertz quasi-periodic oscillation (QPO) with the Neutron Star Interior Composition Explorer (NICER). Analyzing approximately 165 ks of NICER exposure on the X-ray burster 4U 0614+09, we detect multiple instances of a single-peak upper kHz QPO, with centroid frequencies that range from 400 to 750 Hz. We resolve the kHz QPO as a function of energy, and measure, for the first time, the QPO amplitude below 2 keV. We find the fractional amplitude at 1 keV is on the order of 2% rms, and discuss the implications for the QPO emission process in the context of Comptonization models. Key words: accretion, accretion disks – stars: neutron – X-rays: binaries – X-rays: individual (4U 0614+09 2019-03-15T17:59:13Z 2019-03-15T17:59:13Z 2018-06 2018-05 2019-03-12T14:44:25Z Article http://purl.org/eprint/type/JournalArticle 2041-8213 http://hdl.handle.net/1721.1/120989 Bult, Peter, Diego Altamirano, Zaven Arzoumanian, Edward M. Cackett, Deepto Chakrabarty, John Doty, Teruaki Enoto, et al. “NICER Detects a Soft X-Ray Kilohertz Quasi-Periodic Oscillation in 4U 0614+09.” The Astrophysical Journal 860, no. 1 (June 11, 2018): L9. © 2018 The American Astronomical Society. https://orcid.org/0000-0001-8804-8946 http://dx.doi.org/10.3847/2041-8213/AAC893 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 American Astronomical Society The Astrophysical Journal |
| spellingShingle | Bult, Peter Altamirano, Diego Arzoumanian, Zaven Cackett, Edward M. Chakrabarty, Deepto Doty, John Enoto, Teruaki Gendreau, Keith C. Guillot, Sebastien Homan, Jeroen Jaisawal, Gaurava K. Lamb, Frederick K. Ludlam, Renee M. Mahmoodifar, Simin Markwardt, Craig Okajima, Takashi Price, Sam Strohmayer, Tod E. Winternitz, Luke NICER Detects a Soft X-Ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09 |
| title | NICER Detects a Soft X-Ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09 |
| title_full | NICER Detects a Soft X-Ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09 |
| title_fullStr | NICER Detects a Soft X-Ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09 |
| title_full_unstemmed | NICER Detects a Soft X-Ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09 |
| title_short | NICER Detects a Soft X-Ray Kilohertz Quasi-periodic Oscillation in 4U 0614+09 |
| title_sort | nicer detects a soft x ray kilohertz quasi periodic oscillation in 4u 0614 09 |
| url | http://hdl.handle.net/1721.1/120989 https://orcid.org/0000-0001-8804-8946 |
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