Delayed pulsar kicks from the emission of sterile neutrinos - INSPIRE

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Delayed pulsar kicks from the emission of sterile neutrinos

Alexander Kusenko
(
- UCLA
)
,
Bhabani Prasad Mandal
(
- Banaras Hindu U.
)
,
Alok Mukherjee
(
- Banaras Hindu U.
)

Jan, 2008

4 pages

Published in:

Phys.Rev.D 77 (2008) 123009

e-Print:

0801.4734 [astro-ph]

DOI:

10.1103/PhysRevD.77.123009

Report number:

UCLA-08-TEP-03

View in:

ADS Abstract Service

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Abstract: (arXiv)

The observed velocities of pulsars suggest the possibility that sterile neutrinos with mass of several keV are emitted from a cooling neutron star. The same sterile neutrinos could constitute all or part of cosmological dark matter. The neutrino-driven kicks can exhibit delays depending on the mass and the mixing angle, which can be compared with the pulsar data. We discuss the allowed ranges of sterile neutrino parameters, consistent with the latest cosmological and X-ray bounds, which can explain the pulsar kicks for different delay times.

Note:

4 pages, 1 figure/ some discussion and references added/ final version

14.60.Pq
97.60.Gb
14.60.St
97.60.Bw
neutron star
neutrino: emission
neutrino: sterile
pulsar: velocity
dark matter
neutrino: mass

References(174)

Figures(1)

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