A Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet Emission
Abstract 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.
Authors
- Fraser Lewis (ORCID: https://orcid.org/0000-0003-3352-2334)
- P. Goldoni (ORCID: https://orcid.org/0000-0001-5638-5817)
- S. Motta (ORCID: https://orcid.org/0000-0002-6154-5843)
- P. D’Avanzo (ORCID: https://orcid.org/0000-0001-7164-1508)
- M. Armas Padilla (ORCID: https://orcid.org/0000-0002-4344-7334)
- R. P. Fender (ORCID: https://orcid.org/0000-0002-5654-2744)
- D. M. Russell (ORCID: https://orcid.org/0000-0002-3500-631X)
- Payaswini Saikia (ORCID: https://orcid.org/0000-0002-5319-6620)
- Sandeep K. Rout (ORCID: https://orcid.org/0000-0001-7590-5099)
- G. R. Sivakoff (ORCID: https://orcid.org/0000-0001-6682-916X)
- Kevin Alabarta (ORCID: https://orcid.org/0000-0003-0168-9906)
- Alessandro Papitto (ORCID: https://orcid.org/0000-0001-6289-7413)
- N. Masetti (ORCID: https://orcid.org/0000-0001-9487-7740)
- A.K. Hughes (ORCID: https://orcid.org/0000-0003-0764-0687)
- S. Covino (ORCID: https://orcid.org/0000-0001-9078-5507)
- J. van den Eijnden (ORCID: https://orcid.org/0000-0002-5686-0611)
- D. M. Bramich (ORCID: https://orcid.org/0000-0002-1583-6519)
- J. Homan (ORCID: https://orcid.org/0000-0001-8371-2713)
- S. Campana (ORCID: https://orcid.org/0000-0001-6278-1576)
- T. Muñoz‐Darias (ORCID: https://orcid.org/0000-0002-3348-4035)
- M. C. Baglio (ORCID: https://orcid.org/0000-0003-1285-4057)
Institutions
- University of Insubria (IT)
- Centre National de la Recherche Scientifique (FR)
- University of Alberta (CA)
- Universidad de La Laguna (ES)
- Université Paris Cité (FR)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Astronomical Observatory of Rome (IT)
- Laboratoire AstroParticule et Cosmologie (FR)
- Brera Astronomical Observatory (IT)
- University of Oxford (GB)
- Clínica Las Condes (CL)
- Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna (IT)
- Instituto de Astrofísica de Canarias (ES)
- Istituto di Astrofisica Spaziale e Fisica cosmica di Palermo (IT)
- Astronomical Institute of the Slovak Academy of Sciences (SK)
- Eureka Scientific (US)
- Liverpool John Moores University (GB)
- Cardiff University (GB)
- National Institute for Astrophysics (IT)
Publication Details
- Journal
- The Astrophysical Journal
- Published
- 2025-07-21
- DOI
- https://doi.org/10.3847/1538-4357/ade14c
- Citations
- 1
- Primary Topic
- Astrophysical Phenomena and Observations
- Type
- article
- Field-Weighted Citation Impact
- 1.15
Funders
- National Aeronautics and Space Administration
- New York University Abu Dhabi
- Ministerio de Ciencia, Innovación y Universidades
- University of Leicester
- University of Warwick
- European Commission
- Nuclear Safety and Security Commission
- European Southern Observatory
- Tamkeen
- Goddard Space Flight Center
- HORIZON EUROPE Framework Programme
- Agencia Estatal de Investigación
- Astrophysics Science Division