PSR J2032+4127
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Cygnus |
| Right ascension | 20h 32m 13.119s |
| Declination | +41° 27′ 24.31″ |
| Apparent magnitude (V) | 11.266 |
| Characteristics | |
| Evolutionary stage | Pulsar + Main sequence |
| Spectral type | B0Vp |
| Astrometry | |
| Distance | 4,570 ly (1,400 pc) |
| Orbit | |
| Primary | PSR J2032+4127 |
| Name | MT91 213 |
| Period (P) | 46 years (16,800 days) |
| Eccentricity (e) | 0.96 |
| Details | |
| Rotation | 0.14324647 s |
| Age | 201,000 years |
| Other designations | |
| PSR J2032+4127, MT91 213, 2MASS J20321312+4127243 | |
| Database references | |
| SIMBAD | data |
PSR J2032+4127, sometimes abbreviated as J2032, is a pulsar. It is accompanied by a massive Be star named MT91 213 (also 2MASS J20321312+4127243). The system is located in the constellation Cygnus at a distance of about 1.4 kpc (4,570 ly) from the Sun. The system is part of the Cygnus OB2 association.
In November of 2017, J2032+4127 went through its periastron with MT91 213, the closest approach between the two bodies. The passage was a valuable opportunity for scientists to study the interaction. It was the first time this type of periastron passage was observed at multiple telescope wavelengths.[1][2]
The system has an orbital period of 46 years.[3] It completes rotation period of 0.1432 seconds and is characteristic age of 201,000 years old.
References
[edit]- ^ Coe, M.J.; Okazaki, A.T.; Steele, I.A.; Ng, C-Y; Ho, Wynn C.G.; Lyne, A.G.; Stappers, B.; Johnson, T.J.; Ray, Paul S.; Kerr, M. (20 February 2019). "The semicentennial binary system PSR J2032+4127 at periastron: X-ray photometry, optical spectroscopy, and SPH modelling". Monthly Notices of the Royal Astronomical Society. 485 (2). Oxford Academic (published May 2019): 1864–1875. doi:10.1093/mnras/stz515. Retrieved 13 February 2026.
- ^ Lyne, A. G; Stappers, B. W; Keith, M. J; Ray, P. S; Kerr, M; Camilo, F; Johnson, T. J (2015). "The binary nature of PSR J2032+4127". Monthly Notices of the Royal Astronomical Society. 451 (1): 581–587. arXiv:1502.01465. Bibcode:2015MNRAS.451..581L. doi:10.1093/mnras/stv236. S2CID 118441808.
- ^ Ho (2020). "Multiwavelength monitoring and X-ray brightening of Be X-ray binary PSR J2032+4127/MT91 213 on its approach to periastron". Monthly Notices of the Royal Astronomical Society. 464 (1): 1211. arXiv:1609.06328. Bibcode:2017MNRAS.464.1211H. doi:10.1093/mnras/stw2420.
External links
[edit]- Astronomers Predict Fireworks from Rare Stellar Encounter in 2018 NASA
- Coming Soon: Closest Approach - movie-style "preview" video from NASA about the far-ranging explorations expected during close encounter in 2018
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