A Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet Emission
Several phenomenological aspects of low-luminosity neutron star transients, such as atolls, remain poorly understood. One such source, MAXI J1807+132, entered its latest outburst in 2023 July. To thoroughly characterize this outburst, we conducted an extensive observational campaign spanning radio t...
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2025-01-01
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| author | Sandeep K. Rout M. Cristina Baglio Andrew K. Hughes David M. Russell D. M. Bramich Payaswini Saikia Kevin Alabarta Montserrat Armas Padilla Sergio Campana Stefano Covino Paolo D’Avanzo Rob Fender Paolo Goldoni Jeroen Homan Fraser Lewis Nicola Masetti Sara Motta Teo Muñoz-Darias Alessandro Papitto Thomas D. Russell Gregory Sivakoff Jakob van den Eijnden |
| author_facet | Sandeep K. Rout M. Cristina Baglio Andrew K. Hughes David M. Russell D. M. Bramich Payaswini Saikia Kevin Alabarta Montserrat Armas Padilla Sergio Campana Stefano Covino Paolo D’Avanzo Rob Fender Paolo Goldoni Jeroen Homan Fraser Lewis Nicola Masetti Sara Motta Teo Muñoz-Darias Alessandro Papitto Thomas D. Russell Gregory Sivakoff Jakob van den Eijnden |
| author_sort | Sandeep K. Rout |
| collection | DOAJ |
| description | Several phenomenological aspects of low-luminosity neutron star transients, such as atolls, remain poorly understood. One such source, MAXI J1807+132, entered its latest outburst in 2023 July. To thoroughly characterize this outburst, we conducted an extensive observational campaign spanning radio to X-ray wavelengths. Here we present the results of this campaign, which covered the period from before the outburst to the return to quiescence. We detected a delay between the X-ray and optical rise times, which is consistent with the predictions of the disk instability model with a truncated disk. The color evolution and optical/X-ray correlations, along with infrared and radio detections, support the presence of jet synchrotron emission during the gradual decay phase following the peak. We also report for the first time in an X-ray binary a near-orthogonal rotation of the optical polarization just before a small flare, after which the jet is thought to be quenched. The main outburst is followed by several high-amplitude, rapid reflares in the optical, ultraviolet, and X-ray bands, the origin of which remains difficult to constrain. |
| format | Article |
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| institution | DOAJ |
| issn | 1538-4357 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj-art-eca6df0bd71440e087ea6619a6e6b96f2025-08-20T03:12:32ZengIOP PublishingThe Astrophysical Journal1538-43572025-01-01988215310.3847/1538-4357/ade14cA Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet EmissionSandeep K. Rout0https://orcid.org/0000-0001-7590-5099M. Cristina Baglio1https://orcid.org/0000-0003-1285-4057Andrew K. Hughes2https://orcid.org/0000-0003-0764-0687David M. Russell3https://orcid.org/0000-0002-3500-631XD. M. Bramich4https://orcid.org/0000-0002-1583-6519Payaswini Saikia5https://orcid.org/0000-0002-5319-6620Kevin Alabarta6https://orcid.org/0000-0003-0168-9906Montserrat Armas Padilla7https://orcid.org/0000-0002-4344-7334Sergio Campana8https://orcid.org/0000-0001-6278-1576Stefano Covino9https://orcid.org/0000-0001-9078-5507Paolo D’Avanzo10https://orcid.org/0000-0001-7164-1508Rob Fender11https://orcid.org/0000-0002-5654-2744Paolo Goldoni12https://orcid.org/0000-0001-5638-5817Jeroen Homan13https://orcid.org/0000-0001-8371-2713Fraser Lewis14Nicola Masetti15https://orcid.org/0000-0001-9487-7740Sara Motta16https://orcid.org/0000-0002-6154-5843Teo Muñoz-Darias17https://orcid.org/0000-0002-3348-4035Alessandro Papitto18https://orcid.org/0000-0001-6289-7413Thomas D. Russell19https://orcid.org/0000-0002-7930-2276Gregory Sivakoff20https://orcid.org/0000-0001-6682-916XJakob van den Eijnden21https://orcid.org/0000-0002-5686-0611New York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAE ; sandeep.rout@nyu.edu; Center for Astrophysics and Space Science (CASS), New York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAEINAF—Osservatorio Astronomico di Brera , Via Bianchi 46, I-23807 Merate (LC), ItalyDepartment of Physics, University of Oxford , Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK; Department of Physics, University of Alberta , Edmonton, T6G 2E1, CanadaNew York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAE ; sandeep.rout@nyu.edu; Center for Astrophysics and Space Science (CASS), New York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAENew York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAE ; sandeep.rout@nyu.edu; Center for Astrophysics and Space Science (CASS), New York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAENew York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAE ; sandeep.rout@nyu.edu; Center for Astrophysics and Space Science (CASS), New York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAENew York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAE ; sandeep.rout@nyu.edu; Center for Astrophysics and Space Science (CASS), New York University Abu Dhabi , PO Box 129188, Abu Dhabi, UAEInstituto de Astrofísica de Canarias (IAC) , Vía Láctea s/n, La Laguna E-38205, S/C de Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna , La Laguna E-38205, S/C de Tenerife, SpainINAF—Osservatorio Astronomico di Brera , Via Bianchi 46, I-23807 Merate (LC), ItalyINAF—Osservatorio Astronomico di Brera , Via Bianchi 46, I-23807 Merate (LC), Italy; Como Lake Centre for AstroPhysics (CLAP), DiSAT, Universitá dell’Insubria , via Valleggio 11, 22100 Como, ItalyINAF—Osservatorio Astronomico di Brera , Via Bianchi 46, I-23807 Merate (LC), ItalyDepartment of Physics, University of Oxford , Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UKUniversité Paris Cité , CNRS, CEA, Astroparticule et Cosmologie, F-75013 Paris, FranceEureka Scientific , Inc., 2452 Delmer Street, Oakland, CA 94602, USAFaulkes Telescope Project, School of Physics and Astronomy, Cardiff University , The Parade, Cardiff, CF24 3AA Wales, UK; The Schools’ Observatory, Astrophysics Research Institute, Liverpool John Moores University , 146 Brownlow Hill, Liverpool L3 5RF, UKINAF—Osservatorio di Astrofisica e Scienza dello Spazio , Via Piero Gobetti 101, I-40129 Bologna, Italy; Universidad Andrés Bello , Av. Fernández Concha 700, Las Condes, Santiago, ChileINAF—Osservatorio Astronomico di Brera , Via Bianchi 46, I-23807 Merate (LC), ItalyInstituto de Astrofísica de Canarias (IAC) , Vía Láctea s/n, La Laguna E-38205, S/C de Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna , La Laguna E-38205, S/C de Tenerife, SpainINAF Osservatorio Astronomico di Roma , Via Frascati 33, I-00078 Monte Porzio Catone (RM), ItalyINAF , Istituto di Astrofisica Spaziale e Fisica Cosmica, Via U. La Malfa 153, I-90146 Palermo, ItalyDepartment of Physics, University of Alberta , Edmonton, T6G 2E1, CanadaAnton Pannekoek Institute for Astronomy, Universiteit van Amsterdam , Science Park 904, 1098, XH, Amsterdam, The NetherlandsSeveral phenomenological aspects of low-luminosity neutron star transients, such as atolls, remain poorly understood. One such source, MAXI J1807+132, entered its latest outburst in 2023 July. To thoroughly characterize this outburst, we conducted an extensive observational campaign spanning radio to X-ray wavelengths. Here we present the results of this campaign, which covered the period from before the outburst to the return to quiescence. We detected a delay between the X-ray and optical rise times, which is consistent with the predictions of the disk instability model with a truncated disk. The color evolution and optical/X-ray correlations, along with infrared and radio detections, support the presence of jet synchrotron emission during the gradual decay phase following the peak. We also report for the first time in an X-ray binary a near-orthogonal rotation of the optical polarization just before a small flare, after which the jet is thought to be quenched. The main outburst is followed by several high-amplitude, rapid reflares in the optical, ultraviolet, and X-ray bands, the origin of which remains difficult to constrain.https://doi.org/10.3847/1538-4357/ade14cLow-mass x-ray binary starsNeutron starsJetsAccretion |
| spellingShingle | Sandeep K. Rout M. Cristina Baglio Andrew K. Hughes David M. Russell D. M. Bramich Payaswini Saikia Kevin Alabarta Montserrat Armas Padilla Sergio Campana Stefano Covino Paolo D’Avanzo Rob Fender Paolo Goldoni Jeroen Homan Fraser Lewis Nicola Masetti Sara Motta Teo Muñoz-Darias Alessandro Papitto Thomas D. Russell Gregory Sivakoff Jakob van den Eijnden A Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet Emission The Astrophysical Journal Low-mass x-ray binary stars Neutron stars Jets Accretion |
| title | A Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet Emission |
| title_full | A Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet Emission |
| title_fullStr | A Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet Emission |
| title_full_unstemmed | A Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet Emission |
| title_short | A Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet Emission |
| title_sort | multi wavelength characterization of the 2023 outburst of maxi j1807 132 manifestations of disk instability and jet emission |
| topic | Low-mass x-ray binary stars Neutron stars Jets Accretion |
| url | https://doi.org/10.3847/1538-4357/ade14c |
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