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Electromagnetic Precursors to Black Hole–Neutron Star Gravitational Wave Events: Flares and Reconnection-powered Fast Radio Transients from the Late Inspiral
The presence of magnetic fields in the late inspiral of black hole–neutron star binaries could lead to potentially detectable electromagnetic precursor transients. Using general-relativistic force-free electrodynamics simulations, we investigate premerger interactions of the common magnetosphere of...
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| Published in: | Astrophysical journal. Letters 2023-10, Vol.956 (2), p.L33 |
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| Main Authors: | , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c447t-ecefe26608f922000b83ccf6ddaf38cc8cc19df3aa8beee886d3a54f556028bc3 |
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| container_issue | 2 |
| container_start_page | L33 |
| container_title | Astrophysical journal. Letters |
| container_volume | 956 |
| creator | Most, Elias R. Philippov, Alexander A. |
| description | The presence of magnetic fields in the late inspiral of black hole–neutron star binaries could lead to potentially detectable electromagnetic precursor transients. Using general-relativistic force-free electrodynamics simulations, we investigate premerger interactions of the common magnetosphere of black hole–neutron star systems. We demonstrate that these systems can feature copious electromagnetic flaring activity, which we find depends on the magnetic field orientation but not on black hole spin. Due to interactions with the surrounding magnetosphere, these flares could lead to fast-radio-burst-like transients and X-ray emission, with
EM
≲
10
41
B
*
/
10
12
G
2
erg
s
−
1
as an upper bound on the luminosity, where
B
*
is the magnetic field strength on the surface of the neutron star. |
| doi_str_mv | 10.3847/2041-8213/acfdae |
| format | article |
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EM
≲
10
41
B
*
/
10
12
G
2
erg
s
−
1
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B
*
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EM
≲
10
41
B
*
/
10
12
G
2
erg
s
−
1
as an upper bound on the luminosity, where
B
*
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Letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Most, Elias R.</au><au>Philippov, Alexander A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electromagnetic Precursors to Black Hole–Neutron Star Gravitational Wave Events: Flares and Reconnection-powered Fast Radio Transients from the Late Inspiral</atitle><jtitle>Astrophysical journal. Letters</jtitle><stitle>APJL</stitle><addtitle>Astrophys. J. Lett</addtitle><date>2023-10-01</date><risdate>2023</risdate><volume>956</volume><issue>2</issue><spage>L33</spage><pages>L33-</pages><issn>2041-8205</issn><eissn>2041-8213</eissn><abstract>The presence of magnetic fields in the late inspiral of black hole–neutron star binaries could lead to potentially detectable electromagnetic precursor transients. Using general-relativistic force-free electrodynamics simulations, we investigate premerger interactions of the common magnetosphere of black hole–neutron star systems. We demonstrate that these systems can feature copious electromagnetic flaring activity, which we find depends on the magnetic field orientation but not on black hole spin. Due to interactions with the surrounding magnetosphere, these flares could lead to fast-radio-burst-like transients and X-ray emission, with
EM
≲
10
41
B
*
/
10
12
G
2
erg
s
−
1
as an upper bound on the luminosity, where
B
*
is the magnetic field strength on the surface of the neutron star.</abstract><cop>Austin</cop><pub>The American Astronomical Society</pub><doi>10.3847/2041-8213/acfdae</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0001-7801-0362</orcidid><orcidid>https://orcid.org/0000-0002-0491-1210</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Astrophysical journal. Letters, 2023-10, Vol.956 (2), p.L33 |
| issn | 2041-8205 2041-8213 |
| language | eng |
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| source | Free E-Journal (出版社公開部分のみ） |
| subjects | Astrophysical black holes Binary stars Black holes Electrodynamics Emission Field strength General relativity Gravitational wave sources Gravitational waves Luminosity Magnetic fields Magnetospheres Magnetospheric radio emissions Neutron stars Plasma astrophysics Precursors Radio bursts Radio transient sources Stellar flares Stellar systems Upper bounds X-ray emissions |
| title | Electromagnetic Precursors to Black Hole–Neutron Star Gravitational Wave Events: Flares and Reconnection-powered Fast Radio Transients from the Late Inspiral |
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