This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations. (December 2023) (Learn how and when to remove this message)

SWIFT J1756.9−2508 is a millisecond pulsar with a rotation frequency of 182 Hz (period of 5.5 ms). It was discovered in 2007 by the Swift Gamma-Ray Burst Explorer and found to have a companion with a mass between 0.0067 and 0.030 solar masses. It is thought that the companion is the remnant of a former companion star, now stripped down to a planetary-mass core. The pulsar is accreting mass from this companion, resulting in occasional violent outbursts from the accumulated material on the neutron star.

SWIFT J1756.9-2508's only known planet is notable for its orbital period of less than an hour, about 54 minutes and 43 seconds.

• H. A. Krimm; C. B. Markwardt; C. J. Deloye; P. Romano; et al. (October 2007). "Discovery of the accretion-powered millisecond pulsar SWIFT J1756.9-2508 with a low-mass companion". Astrophysical Journal Letters. 668 (2): L147 – L150. arXiv:0709.1693. Bibcode:2007ApJ...668L.147K. doi:10.1086/522959. S2CID 120700539.
• H. A. Krimm; C. B. Markwardt; C. J. Deloye; P. Romano; et al. (October 2009). "ERRATUM: Discovery of the accretion-powered millisecond pulsar SWIFT J1756.9-2508 with a low-mass companion". Astrophysical Journal Letters. 703 (2): L183. arXiv:0709.1693. Bibcode:2009ApJ...703L.183K. doi:10.1088/0004-637X/703/2/L183. S2CID 54031388.

• Universe Today, Pulsar Has Almost Completely Devoured a Star
• SIMBAD, "SWIFT J1756.9-2508" (accessed 2010-11-06)

This variable star–related article is a stub. You can help Wikipedia by expanding it.

• v
• t
• e

This extrasolar-planet-related article is a stub. You can help Wikipedia by expanding it.

• v
• t
• e