期刊
PHYSICAL REVIEW D
卷 100, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.100.063515
关键词
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资金
- Spanish MINECO [FPA2014-57816-P, FPA2017-85985-P]
- European Union [DarkGRA-757480]
- Amaldi Research Center - MIUR program Dipartimento di Eccellenza [CUP: B81I18001170001]
- European Projects [H2020-MSCAITN-2015//674896-ELUSIVES, H2020-MSCA-RISE2015]
- GWverse COST Action [CA16104]
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Research and Innovation
- National Science Foundation of China [11721303, XDB23010200]
- STFC [ST/S000593/1] Funding Source: UKRI
We derive constraints on millicharged dark matter and axionlike particles using pulsar timing and fast radio burst observations. For dark matter particles of charge epsilon e, the constraint from time of arrival (TOA) of waves is epsilon/m(milli) less than or similar to 10(-8) eV(-1), for masses m(milli) greater than or similar to 10(-6) eV. For axionlike particles, the polarization of the signals from pulsars yields a bound in the axial coupling g/ m(a) less than or similar to 10(-13) Gev(-1)/(10(-22) eV),for m(a) less than or similar to 10(-19) eV. Both bounds scale as (rho/rho(dm))(1/2 )for fractions of the total dark matter energy density rho(dm). We make a precise study of these bounds using TOA from several pulsars, FRB 121102, and polarization measurements of PSR J0437 - 4715. Our results rule out a new region of the parameter space for these dark matter models.
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