Nustar Results and Future Plans for Magnetar and Rotation-Powered Pulsar Observations
The Nuclear Spectroscopic Telescope Array (NuSTAR) is the first focusing hard X-ray mission in orbit and operates in the 3–79 keV range. NuSTAR's sensitivity is roughly two orders of magnitude better than previous missions in this energy band thanks to its superb angular resolution. Since its l...
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| Format: | Article |
| Language: | en_US |
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WILEY-VCH Verlag GmbH & Co.
2014
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| Online Access: | http://hdl.handle.net/1721.1/88503 https://orcid.org/0000-0001-8804-8946 |
| _version_ | 1826193767050248192 |
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| author | Chakrabarty, Deepto NuSTAR Team |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Chakrabarty, Deepto NuSTAR Team |
| author_sort | Chakrabarty, Deepto |
| collection | MIT |
| description | The Nuclear Spectroscopic Telescope Array (NuSTAR) is the first focusing hard X-ray mission in orbit and operates in the 3–79 keV range. NuSTAR's sensitivity is roughly two orders of magnitude better than previous missions in this energy band thanks to its superb angular resolution. Since its launch in 2012 June, NuSTAR has performed excellently and observed many interesting sources including four magnetars, two rotation-powered pulsars and the cataclysmic variable AE Aquarii. NuSTAR also discovered 3.76-s pulsations from the transient source SGR J1745–29 recently found by Swift very close to the Galactic center, clearly identifying the source as a transient magnetar. For magnetar 1E 1841–045, we show that the spectrum is well fit by an absorbed blackbody plus broken power-law model with a hard power-law photon index of ∼ 1.3. This is consistent with previous results by INTEGRAL and RXTE. We also find an interesting double-peaked pulse profile in the 25–35 keV band. For AE Aquarii, we show that the spectrum can be described by a multi-temperature thermal model or a thermal plus non-thermal model; a multi-temperature thermal model without a non-thermal component cannot be ruled out. Furthermore, we do not see a spiky pulse profile in the hard X-ray band, as previously reported based on Suzaku observations. For other magnetars and rotation-powered pulsars observed with NuSTAR, data analysis results will be soon available |
| first_indexed | 2024-09-23T09:44:34Z |
| format | Article |
| id | mit-1721.1/88503 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:44:34Z |
| publishDate | 2014 |
| publisher | WILEY-VCH Verlag GmbH & Co. |
| record_format | dspace |
| spelling | mit-1721.1/885032022-09-26T13:28:47Z Nustar Results and Future Plans for Magnetar and Rotation-Powered Pulsar Observations Chakrabarty, Deepto NuSTAR Team Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research Chakrabarty, Deepto The Nuclear Spectroscopic Telescope Array (NuSTAR) is the first focusing hard X-ray mission in orbit and operates in the 3–79 keV range. NuSTAR's sensitivity is roughly two orders of magnitude better than previous missions in this energy band thanks to its superb angular resolution. Since its launch in 2012 June, NuSTAR has performed excellently and observed many interesting sources including four magnetars, two rotation-powered pulsars and the cataclysmic variable AE Aquarii. NuSTAR also discovered 3.76-s pulsations from the transient source SGR J1745–29 recently found by Swift very close to the Galactic center, clearly identifying the source as a transient magnetar. For magnetar 1E 1841–045, we show that the spectrum is well fit by an absorbed blackbody plus broken power-law model with a hard power-law photon index of ∼ 1.3. This is consistent with previous results by INTEGRAL and RXTE. We also find an interesting double-peaked pulse profile in the 25–35 keV band. For AE Aquarii, we show that the spectrum can be described by a multi-temperature thermal model or a thermal plus non-thermal model; a multi-temperature thermal model without a non-thermal component cannot be ruled out. Furthermore, we do not see a spiky pulse profile in the hard X-ray band, as previously reported based on Suzaku observations. For other magnetars and rotation-powered pulsars observed with NuSTAR, data analysis results will be soon available United States. National Aeronautics and Space Administration (NASA Contract No. NNG08FD60C) United States. National Aeronautics and Space Administration (NASA grant NNX10AI72G) United States. National Aeronautics and Space Administration (NASA Grant NNX13AI34G) United States. Dept. of Energy (Lawrence Livermore National Laboratory Contract DE- AC52-07NA27344) 2014-07-25T18:02:31Z 2014-07-25T18:02:31Z 2014-03 2013-12 Article http://purl.org/eprint/type/JournalArticle 0004-6337 1521-3994 http://hdl.handle.net/1721.1/88503 An, H., V.M. Kaspi, R. Archibald, M. Bachetti, V. Bhalerao, E.C. Bellm, A.M. Beloborodov, S.E. Boggs, D. Chakrabarty et al. "Nustar Results and Future Plans for Magnetar and Rotation-Powered Pulsar Observations." Astronnmishche Nachrichten 335.3 (March 2014), p. 280–284. https://orcid.org/0000-0001-8804-8946 en_US http://onlinelibrary.wiley.com/doi/10.1002/asna.201312032/pdf Astronomische Nachrichten Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf WILEY-VCH Verlag GmbH & Co. arXiv |
| spellingShingle | Chakrabarty, Deepto NuSTAR Team Nustar Results and Future Plans for Magnetar and Rotation-Powered Pulsar Observations |
| title | Nustar Results and Future Plans for Magnetar and Rotation-Powered Pulsar Observations |
| title_full | Nustar Results and Future Plans for Magnetar and Rotation-Powered Pulsar Observations |
| title_fullStr | Nustar Results and Future Plans for Magnetar and Rotation-Powered Pulsar Observations |
| title_full_unstemmed | Nustar Results and Future Plans for Magnetar and Rotation-Powered Pulsar Observations |
| title_short | Nustar Results and Future Plans for Magnetar and Rotation-Powered Pulsar Observations |
| title_sort | nustar results and future plans for magnetar and rotation powered pulsar observations |
| url | http://hdl.handle.net/1721.1/88503 https://orcid.org/0000-0001-8804-8946 |
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