Possible astrophysical clues of dark matter
Apr, 20046 pages
Part of Proceedings, 6th UCLA Symposium on Sources and Detection of Dark Matter and Dark Energy in the Universe : Marina del Rey, CA, USA, February 18-20, 2004, 115-118
Published in:
- New Astron.Rev. 49 (2005) 115-118
Contribution to:
e-Print:
- astro-ph/0404568 [astro-ph]
Report number:
- UCLA-04-TEP-16
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Abstract: (arXiv)
The physics of the supernova may provide a clue of the cosmological dark matter. In the absence of new physics, the supernova calculations do not explain the observed velocities of pulsars. However, if there exists a singlet fermion with mass in the 1-20 keV range and a small mixing with neutrinos, this particle could be emitted asymmetrically from a cooling neutron star in the event of a supernova explosion. The asymmetry could explain the long-standing puzzle of pulsar velocities. The same particle could be the dark matter. Observations of X-ray telescopes, as well as a future detection of gravitational waves from a nearby supernova can confirm or rule out this possibility.- talk: Marina del Rey 2004/02/18
- dark matter
- supernova
- velocity: pulsar
- fermion: singlet
- neutrino: sterile
- mixing angle: (fermion neutrino)
- neutron star
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