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Title: Black holes and gravitational waves in models of minicharged dark matter

Abstract

In viable models of minicharged dark matter, astrophysical black holes might be charged under a hidden U(1) symmetry and are formally described by the same Kerr-Newman solution of Einstein-Maxwell theory. These objects are unique probes of minicharged dark matter and dark photons. We show that the recent gravitational-wave detection of a binary black-hole coalescence by aLIGO provides various observational bounds on the black hole’s charge, regardless of its nature. The pre-merger inspiral phase can be used to constrain the dipolar emission of (ordinary and dark) photons, whereas the detection of the quasinormal modes set an upper limit on the final black hole’s charge. By using a toy model of a point charge plunging into a Reissner-Nordstrom black hole, we also show that in dynamical processes the (hidden) electromagnetic quasinormal modes of the final object are excited to considerable amplitude in the gravitational-wave spectrum only when the black hole is nearly extremal. The coalescence produces a burst of low-frequency dark photons which might provide a possible electromagnetic counterpart to black-hole mergers in these scenarios.

Authors:
 [1];  [2];  [1];  [1];  [3];  [4]
  1. CENTRA, Departamento de Física, Instituto Superior Técnico - IST,Universidade de Lisboa - UL, Avenida Rovisco Pais 1, 1049 Lisboa (Portugal)
  2. (Canada)
  3. (Italy)
  4. Dipartimento di Fisica, “Sapienza” Università di Roma and Sezione INFN Roma1,Piazzale A. Moro 5, 00185, Roma (Italy)
Publication Date:
Sponsoring Org.:
SCOAP3, CERN, Geneva (Switzerland)
OSTI Identifier:
22572083
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2016; Journal Issue: 05; Other Information: PUBLISHER-ID: JCAP05(2016)054; OAI: oai:repo.scoap3.org:15721; cc-by Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASTROPHYSICS; BLACK HOLES; COSMIC PHOTONS; EINSTEIN FIELD EQUATIONS; EINSTEIN-MAXWELL EQUATIONS; GRAVITATIONAL WAVES; KERR METRIC; MATHEMATICAL SOLUTIONS; NONLUMINOUS MATTER; PHOTON EMISSION; POINT CHARGE; U-1 GROUPS

Citation Formats

Cardoso, Vitor, Perimeter Institute for Theoretical Physics,31 Caroline Street North Waterloo, Ontario N2L 2Y5, Macedo, Caio F.B., Pani, Paolo, Dipartimento di Fisica, “Sapienza” Università di Roma and Sezione INFN Roma1,Piazzale A. Moro 5, 00185, Roma, and Ferrari, Valeria. Black holes and gravitational waves in models of minicharged dark matter. United States: N. p., 2016. Web. doi:10.1088/1475-7516/2016/05/054.
Cardoso, Vitor, Perimeter Institute for Theoretical Physics,31 Caroline Street North Waterloo, Ontario N2L 2Y5, Macedo, Caio F.B., Pani, Paolo, Dipartimento di Fisica, “Sapienza” Università di Roma and Sezione INFN Roma1,Piazzale A. Moro 5, 00185, Roma, & Ferrari, Valeria. Black holes and gravitational waves in models of minicharged dark matter. United States. doi:10.1088/1475-7516/2016/05/054.
Cardoso, Vitor, Perimeter Institute for Theoretical Physics,31 Caroline Street North Waterloo, Ontario N2L 2Y5, Macedo, Caio F.B., Pani, Paolo, Dipartimento di Fisica, “Sapienza” Università di Roma and Sezione INFN Roma1,Piazzale A. Moro 5, 00185, Roma, and Ferrari, Valeria. Mon . "Black holes and gravitational waves in models of minicharged dark matter". United States. doi:10.1088/1475-7516/2016/05/054.
@article{osti_22572083,
title = {Black holes and gravitational waves in models of minicharged dark matter},
author = {Cardoso, Vitor and Perimeter Institute for Theoretical Physics,31 Caroline Street North Waterloo, Ontario N2L 2Y5 and Macedo, Caio F.B. and Pani, Paolo and Dipartimento di Fisica, “Sapienza” Università di Roma and Sezione INFN Roma1,Piazzale A. Moro 5, 00185, Roma and Ferrari, Valeria},
abstractNote = {In viable models of minicharged dark matter, astrophysical black holes might be charged under a hidden U(1) symmetry and are formally described by the same Kerr-Newman solution of Einstein-Maxwell theory. These objects are unique probes of minicharged dark matter and dark photons. We show that the recent gravitational-wave detection of a binary black-hole coalescence by aLIGO provides various observational bounds on the black hole’s charge, regardless of its nature. The pre-merger inspiral phase can be used to constrain the dipolar emission of (ordinary and dark) photons, whereas the detection of the quasinormal modes set an upper limit on the final black hole’s charge. By using a toy model of a point charge plunging into a Reissner-Nordstrom black hole, we also show that in dynamical processes the (hidden) electromagnetic quasinormal modes of the final object are excited to considerable amplitude in the gravitational-wave spectrum only when the black hole is nearly extremal. The coalescence produces a burst of low-frequency dark photons which might provide a possible electromagnetic counterpart to black-hole mergers in these scenarios.},
doi = {10.1088/1475-7516/2016/05/054},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 05,
volume = 2016,
place = {United States},
year = {Mon May 23 00:00:00 EDT 2016},
month = {Mon May 23 00:00:00 EDT 2016}
}