Astronomy:HV 11417
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Short description: Candidate Thorne–Żytkow object in the constellation Tucana
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Tucana |
| Right ascension | 01h 00m 48.2s[1] |
| Declination | −72° 51′ 02.1″[1] |
| Apparent magnitude (V) | 19.83[2] |
| Characteristics | |
| Evolutionary stage | M-type supergiant, Thorne-Żytkow object? |
| Spectral type | M5Ie[2] |
| Astrometry | |
| Proper motion (μ) | RA: −0.307[2] mas/yr Dec.: −1.769[2] mas/yr |
| Details | |
| Luminosity | 74100[1] L☉ |
| Other designations | |
HV 11417, PMMR 113, TIC 182293383[2] | |
| Database references | |
| SIMBAD | data |
HV 11417 is a candidate Thorne–Żytkow object, put forward in a paper by Emma Beasor and collaborators. The paper also claims that another candidate for the Thorne–Żytkow object, HV 2112, was not a Thorne–Żytkow object because it seemingly possessed no strange quality that would label it as a Thorne–Żytkow object.[1] HV 11417 has since been identified as a likely foreground halo star.[3]
References
- ↑ 1.0 1.1 1.2 1.3 Beasor, Emma R.; Davies, Ben; Cabrera-Ziri, Ivan; Hurst, Georgia (2018-07-02). "A critical re-evaluation of the Thorne–Żytkow object candidate HV 2112". Monthly Notices of the Royal Astronomical Society 479 (3): 3101–3105. doi:10.1093/mnras/sty1744. Bibcode: 2018MNRAS.479.3101B.
- ↑ 2.0 2.1 2.2 2.3 2.4 "HV 11417". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HV+11417.
- ↑ O'Grady, Anna (2020). "Cool, Luminous, and Highly Variable Stars in the Magellanic Clouds from ASAS-SN: Implications for Thorne-Żytkow Objects and Super-asymptotic Giant Branch Stars". Astrophysical Journal 901 (2): 135. September 2020. doi:10.3847/1538-4357/abafad. Bibcode: 2020ApJ...901..135O.
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