Parkes Radio and NuSTAR X-Ray Observations of the Composite Supernova Remnant B0453–685 in the Large Magellanic Cloud
Gamma-ray emission is observed coincident in position to the evolved, composite supernova remnant (SNR) B0453–685. Prior multiwavelength investigations of the region indicate that the pulsar wind nebula (PWN) within the SNR is the most likely origin for the observed gamma rays, with a possible pulsa...
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| Veröffentlicht in: | The Astrophysical journal 2024-11, Vol.975 (2), p.247 |
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| creator | Eagle, Jordan Hare, Jeremy Hays, Elizabeth Castro, Daniel Gelfand, Joseph Alnaqbi, Jwaher Kerr, Matthew Dai, Shi Ballet, Jean Acero, Fabio Slane, Patrick Ajello, Marco |
| description | Gamma-ray emission is observed coincident in position to the evolved, composite supernova remnant (SNR) B0453–685. Prior multiwavelength investigations of the region indicate that the pulsar wind nebula (PWN) within the SNR is the most likely origin for the observed gamma rays, with a possible pulsar contribution that becomes significant at energies below
E
∼ 5 GeV. Constraints on the PWN hard X-ray spectrum are important for the most accurate broadband representation of PWN emission and determining the presence of a gamma-ray pulsar component. The results of Parkes radio and Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray observations are presented on PWN B0453–685. We perform a search for the central pulsar in the new Parkes radio data, finding an upper limit of 12
μ
Jy. A pulsation search in the new NuSTAR observations additionally provides a 3
σ
upper limit on the hard X-ray pulsed fraction of 56%. The PWN is best characterized with a photon index Γ
X
= 1.91 ± 0.20 in the 3–78 keV NuSTAR data, and the results are incorporated into existing broadband models. Last, we characterize a serendipitous source detected by Chandra and NuSTAR that is considered a new high-mass X-ray binary candidate. |
| doi_str_mv | 10.3847/1538-4357/ad85ca |
| format | Article |
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E
∼ 5 GeV. Constraints on the PWN hard X-ray spectrum are important for the most accurate broadband representation of PWN emission and determining the presence of a gamma-ray pulsar component. The results of Parkes radio and Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray observations are presented on PWN B0453–685. We perform a search for the central pulsar in the new Parkes radio data, finding an upper limit of 12
μ
Jy. A pulsation search in the new NuSTAR observations additionally provides a 3
σ
upper limit on the hard X-ray pulsed fraction of 56%. The PWN is best characterized with a photon index Γ
X
= 1.91 ± 0.20 in the 3–78 keV NuSTAR data, and the results are incorporated into existing broadband models. Last, we characterize a serendipitous source detected by Chandra and NuSTAR that is considered a new high-mass X-ray binary candidate.</description><identifier>ISSN: 0004-637X</identifier><identifier>EISSN: 1538-4357</identifier><identifier>DOI: 10.3847/1538-4357/ad85ca</identifier><language>eng</language><publisher>Philadelphia: The American Astronomical Society</publisher><subject>Broadband ; Gamma emission ; Gamma ray astronomy ; Gamma rays ; High mass x-ray binary stars ; Large Magellanic Cloud ; Magellanic clouds ; Nebulae ; Optical astronomy ; Pulsar wind nebulae ; Pulsar winds ; Pulsars ; Radio astronomy ; Spectroscopic telescopes ; Stellar winds ; Supernova ; Supernova remnants ; X ray binaries ; X ray spectra ; X ray stars ; X-ray astronomy ; X-rays</subject><ispartof>The Astrophysical journal, 2024-11, Vol.975 (2), p.247</ispartof><rights>2024. The Author(s). Published by the American Astronomical Society.</rights><rights>2024. The Author(s). Published by the American Astronomical Society. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c257t-2e6f65939298ee8adc44bbff1b47dff21b2a1555b704ec5e8ac9466eb7ccca973</cites><orcidid>0000-0002-6584-1703 ; 0000-0002-0893-4073 ; 0000-0002-8172-593X ; 0000-0002-4644-6580 ; 0000-0002-6986-6756 ; 0000-0002-9618-2499 ; 0000-0003-4679-1058 ; 0000-0002-8784-2977 ; 0000-0002-8548-482X ; 0000-0001-9633-3165 ; 0000-0002-0394-3173 ; 0000-0002-6606-2816</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.3847/1538-4357/ad85ca/pdf$$EPDF$$P50$$Giop$$Hfree_for_read</linktopdf><link.rule.ids>314,777,781,861,2096,27905,27906,38871,53848</link.rule.ids></links><search><creatorcontrib>Eagle, Jordan</creatorcontrib><creatorcontrib>Hare, Jeremy</creatorcontrib><creatorcontrib>Hays, Elizabeth</creatorcontrib><creatorcontrib>Castro, Daniel</creatorcontrib><creatorcontrib>Gelfand, Joseph</creatorcontrib><creatorcontrib>Alnaqbi, Jwaher</creatorcontrib><creatorcontrib>Kerr, Matthew</creatorcontrib><creatorcontrib>Dai, Shi</creatorcontrib><creatorcontrib>Ballet, Jean</creatorcontrib><creatorcontrib>Acero, Fabio</creatorcontrib><creatorcontrib>Slane, Patrick</creatorcontrib><creatorcontrib>Ajello, Marco</creatorcontrib><title>Parkes Radio and NuSTAR X-Ray Observations of the Composite Supernova Remnant B0453–685 in the Large Magellanic Cloud</title><title>The Astrophysical journal</title><addtitle>APJ</addtitle><addtitle>Astrophys. J</addtitle><description>Gamma-ray emission is observed coincident in position to the evolved, composite supernova remnant (SNR) B0453–685. Prior multiwavelength investigations of the region indicate that the pulsar wind nebula (PWN) within the SNR is the most likely origin for the observed gamma rays, with a possible pulsar contribution that becomes significant at energies below
E
∼ 5 GeV. Constraints on the PWN hard X-ray spectrum are important for the most accurate broadband representation of PWN emission and determining the presence of a gamma-ray pulsar component. The results of Parkes radio and Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray observations are presented on PWN B0453–685. We perform a search for the central pulsar in the new Parkes radio data, finding an upper limit of 12
μ
Jy. A pulsation search in the new NuSTAR observations additionally provides a 3
σ
upper limit on the hard X-ray pulsed fraction of 56%. The PWN is best characterized with a photon index Γ
X
= 1.91 ± 0.20 in the 3–78 keV NuSTAR data, and the results are incorporated into existing broadband models. 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J</addtitle><date>2024-11-01</date><risdate>2024</risdate><volume>975</volume><issue>2</issue><spage>247</spage><pages>247-</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>Gamma-ray emission is observed coincident in position to the evolved, composite supernova remnant (SNR) B0453–685. Prior multiwavelength investigations of the region indicate that the pulsar wind nebula (PWN) within the SNR is the most likely origin for the observed gamma rays, with a possible pulsar contribution that becomes significant at energies below
E
∼ 5 GeV. Constraints on the PWN hard X-ray spectrum are important for the most accurate broadband representation of PWN emission and determining the presence of a gamma-ray pulsar component. The results of Parkes radio and Nuclear Spectroscopic Telescope Array (NuSTAR) X-ray observations are presented on PWN B0453–685. We perform a search for the central pulsar in the new Parkes radio data, finding an upper limit of 12
μ
Jy. A pulsation search in the new NuSTAR observations additionally provides a 3
σ
upper limit on the hard X-ray pulsed fraction of 56%. The PWN is best characterized with a photon index Γ
X
= 1.91 ± 0.20 in the 3–78 keV NuSTAR data, and the results are incorporated into existing broadband models. Last, we characterize a serendipitous source detected by Chandra and NuSTAR that is considered a new high-mass X-ray binary candidate.</abstract><cop>Philadelphia</cop><pub>The American Astronomical Society</pub><doi>10.3847/1538-4357/ad85ca</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-6584-1703</orcidid><orcidid>https://orcid.org/0000-0002-0893-4073</orcidid><orcidid>https://orcid.org/0000-0002-8172-593X</orcidid><orcidid>https://orcid.org/0000-0002-4644-6580</orcidid><orcidid>https://orcid.org/0000-0002-6986-6756</orcidid><orcidid>https://orcid.org/0000-0002-9618-2499</orcidid><orcidid>https://orcid.org/0000-0003-4679-1058</orcidid><orcidid>https://orcid.org/0000-0002-8784-2977</orcidid><orcidid>https://orcid.org/0000-0002-8548-482X</orcidid><orcidid>https://orcid.org/0000-0001-9633-3165</orcidid><orcidid>https://orcid.org/0000-0002-0394-3173</orcidid><orcidid>https://orcid.org/0000-0002-6606-2816</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Broadband Gamma emission Gamma ray astronomy Gamma rays High mass x-ray binary stars Large Magellanic Cloud Magellanic clouds Nebulae Optical astronomy Pulsar wind nebulae Pulsar winds Pulsars Radio astronomy Spectroscopic telescopes Stellar winds Supernova Supernova remnants X ray binaries X ray spectra X ray stars X-ray astronomy X-rays |
| title | Parkes Radio and NuSTAR X-Ray Observations of the Composite Supernova Remnant B0453–685 in the Large Magellanic Cloud |
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