Astronomy:PSR J1544+4937
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Short description: Millisecond pulsar in the constellation Boötes
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Boötes[1] |
| Right ascension | 15h 44m 04.166s[2] |
| Declination | +49° 37′ 57.45″[2] |
| Characteristics | |
| Spectral type | Pulsar |
| Details | |
| Rotation | 2.15928839042476 ms[2] |
| Age | 12.2 Gyr |
| Other designations | |
3FGL J1544.0+4938 | |
| Database references | |
| SIMBAD | data |
PSR J1544+4937 is a pulsar and gamma-ray source.[3] It is a millisecond pulsar with a very short rotation period of 2.1592 milliseconds and is characteristic age of 12.2 billion years old.[2] Additionally, it has a planet or brown dwarf known as PSR J1544+4937 b.[4]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 18 MJ | 0.00537 | 0.1207729895±0.0000000001 | — | — | — |
See also
- Black widow pulsar
References
- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific 99 (617): 695. doi:10.1086/132034. Bibcode: 1987PASP...99..695R Constellation record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 Bhattacharyya, B.; Roy, J.; Ray, P. S.; Gupta, Y.; Bhattacharya, D.; Romani, R. W.; Ransom, S. M.; Ferrara, E. C. et al. (2013). "GMRT Discovery of PSR J1544+4937: An Eclipsing Black-Widow Pulsar Identified with a Fermi -Lat Source". The Astrophysical Journal 773 (1): L12. doi:10.1088/2041-8205/773/1/L12. Bibcode: 2013ApJ...773L..12B.
- ↑ "SIMBAD query result". http://simbad.u-strasbg.fr/simbad/sim-id?protocol=html&Ident=PSR%20J1544+4937.
- ↑ "The Extrasolar Planet Encyclopaedia — PSR J1544+4937 b". Extrasolar Planets Encyclopaedia. https://exoplanet.eu/catalog/psr_j1544_4937_b--6949/. Retrieved 2021-08-28.
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