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An X-Ray-dim "Isolated" Neutron Star in a Binary?
| Indexado |
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| DOI | 10.3847/2041-8213/ACB54B | ||||
| Año | 2023 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
We report the discovery of a dark companion to 2MASS J15274848+3536572 with an orbital period of 6.14 hr. Combining the radial velocity from LAMOST observations and modeling of the multiband light curve, one obtains a mass function of ≃0.131 M ⊙, an inclination of 45 .° 20 − 0 .° 20 + 0 .° 13 , and a mass ratio of 0.631 − 0.003 + 0.014 , which demonstrate the binary nature of the dark companion with a mass of 0.98 ± 0.03M ⊙ and a main-sequence K9-M0 star of 0.62 ± 0.01 M ⊙. LAMOST optical spectra at a range of orbital phases reveal extra-peaked Hα emission that suggests the presence of an accretion disk. The dark companion does not seem to be a white dwarf because of the lack of any observed dwarf nova outbursts in the long-term data archive, although a magnetic white dwarf cannot be excluded. Alternatively, we propose a scenario wherein the dark companion is a neutron star, but we have not detected radio pulsations or a single pulse from the system with the FAST (Five-hundred-meter Aperture Spherical radio Telescope), which hints at a radio-quiet compact object. If the dark companion is identified as a neutron star, it will be the nearest (∼118 pc) and lightest neutron star. Furthermore, kinematic analysis of the system’s orbit in the galaxy may suggest its supernova event is associated with the radionuclide 60Fe signal observed from deep-sea crusts. This radio-quiet and X-ray-dim nearby neutron star may resemble an XDINS (X-ray-dim isolated neutron star) but in a binary.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Lin, Jie | - |
Peking University - China
State Key Laboratory of Nuclear Physics and Technology - China Peking Univ - China |
| 2 | Li, Chunqian | - |
National Astronomical Observatories Chinese Academy of Sciences - China
University of Chinese Academy of Sciences - China CASSACA - China Univ Chinese Acad Sci - China |
| 3 | Wang, Weiyang | - |
Peking University - China
State Key Laboratory of Nuclear Physics and Technology - China Peking Univ - China |
| 4 | Xu, Heng | - |
National Astronomical Observatories Chinese Academy of Sciences - China
CASSACA - China |
| 5 | Jiang, Jinchen | - |
National Astronomical Observatories Chinese Academy of Sciences - China
CASSACA - China |
| 6 | Yang, Daoye | - |
National Astronomical Observatories Chinese Academy of Sciences - China
CASSACA - China |
| 7 | Yaqup, Shahidin | - |
Xinjiang Astronomical Observatory - China
CASSACA - China |
| 8 | Iskanda, Abdusamatjan | - |
Xinjiang Astronomical Observatory - China
CASSACA - China |
| 9 | Ma, Shuguo | - |
Xinjiang Astronomical Observatory - China
CASSACA - China |
| 10 | Niu, Hubiao | - |
Xinjiang Astronomical Observatory - China
CASSACA - China |
| 11 | Esamdin, A. | - |
Xinjiang Astronomical Observatory - China
CASSACA - China |
| 12 | Liu, Shuai | - |
National Astronomical Observatories Chinese Academy of Sciences - China
CASSACA - China |
| 13 | Ramsay, Gavin | Hombre |
Armagh Observatory - Reino Unido
Armagh Observ & Planetarium - Reino Unido |
| 14 | Vines, Jose | Hombre |
Universidad de Chile - Chile
|
| 15 | Shi, Jianrong | - |
National Astronomical Observatories Chinese Academy of Sciences - China
University of Chinese Academy of Sciences - China CASSACA - China Univ Chinese Acad Sci - China |
| 16 | Xu, Renxin | - |
Peking University - China
State Key Laboratory of Nuclear Physics and Technology - China Peking Univ - China |
| Fuente |
|---|
| National Natural Science Foundation of China |
| Chinese Academy of Sciences |
| NASA |
| National Aeronautics and Space Administration |
| National Development and Reform Commission |
| NASA Explorer Program |
| Space Telescope Science Institute |
| National Astronomical Observatories, Chinese Academy of Sciences |
| California Institute of Technology |
| Strategic Priority Research Program of CAS |
| Assessment of Spondyloarthritis international Society |
| National SKA program of China |
| CRST |
| Agradecimiento |
|---|
| We appreciate Jianning Fu, Kejia Lee, Song Wang, Jifeng Liu, Xinlin Zhao, Bojun Wang, Chunyang Cao, and Jianping Xiong for their helpful comments and suggestions. The Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST) is a National Major Scientific Project built by the Chinese Academy of Sciences. Funding for the project has been provided by the National Development and Reform Commission. LAMOST is operated and managed by the National Astronomical Observatories, Chinese Academy of Sciences. FAST is a Chinese national mega-science facility, operated by the National Astronomical Observatories, Chinese Academy of Sciences. This paper makes use of data from the first public release of the WASP data (Butters et al. 2010) as provided by the WASP consortium and services at the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. This paper includes data collected with the TESS mission, obtained from the MAST data archive at the Space Telescope Science Institute (STScI). Funding for the TESS mission is provided by the NASA Explorer Program. STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. We acknowledge the use of the public data from the ASAS, CRST, and HATNet. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France. This work was supported by the National SKA Program of China (2020SKA0120100), the National Natural Science Foundation of China (12090040, 12090044, 11833006), and the Strategic Priority Research Program of CAS (XDB23010200). |
| We appreciate Jianning Fu, Kejia Lee, Song Wang, Jifeng Liu, Xinlin Zhao, Bojun Wang, Chunyang Cao, and Jianping Xiong for their helpful comments and suggestions. The Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST) is a National Major Scientific Project built by the Chinese Academy of Sciences. Funding for the project has been provided by the National Development and Reform Commission. LAMOST is operated and managed by the National Astronomical Observatories, Chinese Academy of Sciences. FAST is a Chinese national mega-science facility, operated by the National Astronomical Observatories, Chinese Academy of Sciences. This paper makes use of data from the first public release of the WASP data (Butters et al. 2010) as provided by the WASP consortium and services at the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. This paper includes data collected with the TESS mission, obtained from the MAST data archive at the Space Telescope Science Institute (STScI). Funding for the TESS mission is provided by the NASA Explorer Program. STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. We acknowledge the use of the public data from the ASAS, CRST, and HATNet. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France. This work was supported by the National SKA Program of China (2020SKA0120100), the National Natural Science Foundation of China (12090040, 12090044, 11833006), and the Strategic Priority Research Program of CAS (XDB23010200). |
| We appreciate Jianning Fu, Kejia Lee, Song Wang, Jifeng Liu, Xinlin Zhao, Bojun Wang, Chunyang Cao, and Jianping Xiong for their helpful comments and suggestions. The Guoshoujing Telescope (the Large Sky Area Multi-Object Fiber Spectroscopic Telescope, LAMOST) is a National Major Scientific Project built by the Chinese Academy of Sciences. Funding for the project has been provided by the National Development and Reform Commission. LAMOST is operated <EM><STRONG> </STRONG></EM>and managed by the National Astronomical Observatories, Chinese Academy of Sciences. FAST is a Chinese national mega-science facility, operated by the National Astronomical Observatories, Chinese Academy of Sciences. This paper makes use of data from the first public release of the WASP data (Butters et al. 2010) as provided by the WASP consortium and services at the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. This paper includes data collected with the TESS mission, obtained from the MAST data archive at the Space Telescope Science Institute (STScI). Funding for the TESS mission is provided by the NASA Explorer Program. STScI is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. We acknowledge the use of the public data from the ASAS, CRST, and HATNet. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France. This work was supported by the National SKA Program of China (2020SKA0120100), the National Natural Science Foundation of China (12090040, 12090044, 11833006), and the Strategic Priority Research Program of CAS (XDB23010200). |
