PSR B0950+08
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| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Leo[1] |
| Right ascension | 09h 53m 09.310s |
| Declination | +07° 55′ 35.75″ |
| Characteristics | |
| Spectral type | Pulsar |
| Apparent magnitude (B) | 27.07(16)[2] |
| Astrometry | |
| Proper motion (μ) | RA: −2.09 mas/yr Dec.: 29.46 mas/yr |
| Parallax (π) | 3.82±0.07 mas |
| Distance | 850 ± 20 ly (262 ± 5 pc) |
| Details | |
| Rotation | 0.2530654277593 s |
| Age | 1.8 Myr |
| Other designations | |
| PSR J0953+0755, NVSS J095309+075536, PULS CP 0950, GAL 228.9+43.7, PSR B0950+08.[3] | |
| Database references | |
| SIMBAD | data |
PSR B0950+08 is a young pulsar that may have come from a supernova that occurred in the Constellation of Leo 1.8 million years ago. Off-pulse emissions from the young pulsar were detected by the Expanded Long Wavelength Array, suggesting the presence of a pulsar wind nebula around it.[4]
PSR B0950+08 was fourth among the initial radio pulsars discovered in 1968.[2] It completes rotation every 0.253 seconds.
It was postulated in 2002 to be related to the Antlia Supernova Remnant,[5] but a 2021 study estimates the age of the remnant to be less than 100,000 years.[6]
External links
[edit]References
[edit]- ↑ Roman, Nancy G. (1987). "Identification of a constellation from a position". Publications of the Astronomical Society of the Pacific. 99 (617): 695. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Constellation record for this object at VizieR.
- 1 2 Zharikov, S. V.; et al. (2002). "Subaru optical observations of the old pulsar PSR B0950+08". Astronomy & Astrophysics. 394 (2): 633–639. arXiv:astro-ph/0206229. Bibcode:2002A&A...394..633Z. doi:10.1051/0004-6361:20021155.
- ↑ "PSR B0950+08". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2024-04-19.
- ↑ Ruan, D. (8 May 2020). "Discovery of a Pulsar Wind Nebula around B0950+08 with the ELWA". Monthly Notices of the Royal Astronomical Society. 495 (2): 2125–2134. arXiv:2005.03303. doi:10.1093/mnras/staa1305. S2CID 218537942.
- ↑ McCullough, P. R.; Fields, Brian D.; Pavlidou, Vasiliki (2002-09-01). "Discovery of an Old, Nearby, and Overlooked Supernova Remnant Centered on the Southern Constellation Antlia Pneumatica". The Astrophysical Journal. 576 (1): L41–L44. Bibcode:2002ApJ...576L..41M. doi:10.1086/343100. ISSN 0004-637X.
- ↑ Fesen, Robert A.; Drechsler, Marcel; Weil, Kathryn E.; Strottner, Xavier; Raymond, John C.; Rupert, Justin; Milisavljevic, Dan; Subrayan, Bhagya M.; di Cicco, Dennis; Walker, Sean; Mittelman, David; Ludgate, Mathew (2021-10-01). "Far-UV and Optical Emissions from Three Very Large Supernova Remnants Located at Unusually High Galactic Latitudes". The Astrophysical Journal. 920 (2): 90. arXiv:2102.12599. Bibcode:2021ApJ...920...90F. doi:10.3847/1538-4357/ac0ada. ISSN 0004-637X.
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