SWIFT J1756.9–2508
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Pulsar SWIFT J1756.9–2508 |
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Observation dates equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 17 h 56 m 57.35 s |
| declination | −25 ° 06 ′ 27.8 ″ |
| Astrometry | |
| Physical Properties | |
| Rotation period | 5.5 ms |
| Aladin previewer | |
SWIFT J1756.9-2508 is an ultra-compact X-ray binary star that was detected with the Swift satellite . The system consists of a Milisekundenpulsar and an attendant with an extremely low mass (0.0067 to 0.003 M ☉ ). It is believed that the companion used to be a real star, but that it lost all of its mass through mass transfer to the pulsar, which increased its speed of rotation.
See also
Web links
- https://www.universetoday.com/11758/pulsar-has-almost-completely-devoured-a-star/
- https://www.nasa.gov/centers/goddard/news/topstory/2007/millisecond_pulsar.html
Individual evidence
- ↑ Simbad
- ^ HA Krimm et. al: Discovery of the Accretion-powered Millisecond Pulsar SWIFT J1756.9-2508 with a Low-Mass Companion . In: The Astrophysical Journal . 668, 2007. arxiv : 0709.1693 . doi : 10.1086 / 522959 .