νν¯-Pair synchrotron emission in neutron-star matter based on a relativistic quantum approach

We study the νν¯-pair synchrotron emission from electrons and protons in a relativistic quantum approach. This process occurs only in the presence of a strong magnetic field, and it is considered to be one of effective processes for neutron star cooling. In this work we calculate the luminosity of t...

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Main Authors: Tomoyuki Maruyama, A. Baha Balantekin, Myung-Ki Cheoun, Toshitaka Kajino, Grant J. Mathews
Format: Article
Language:English
Published: Elsevier 2020-06-01
Series:Physics Letters B
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269320302173
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spelling doaj-6b251bbacf694cd3815d33999d1528a22020-11-25T03:03:49ZengElsevierPhysics Letters B0370-26932020-06-01805νν¯-Pair synchrotron emission in neutron-star matter based on a relativistic quantum approachTomoyuki Maruyama0A. Baha Balantekin1Myung-Ki Cheoun2Toshitaka Kajino3Grant J. Mathews4College of Bioresource Sciences, Nihon University, Fujisawa 252-0880, Japan; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Corresponding author.Department of Physics, University of Wisconsin, Madison, WI 53706, USA; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, JapanDepartment of Physics, Soongsil University, Seoul, 156-743, Republic of Korea; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, JapanBeihang University, School of Physics, International Research Center for Big-Bang Cosmology and Element Genesis, Beijing 100083, China; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, JapanCenter of Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, JapanWe study the νν¯-pair synchrotron emission from electrons and protons in a relativistic quantum approach. This process occurs only in the presence of a strong magnetic field, and it is considered to be one of effective processes for neutron star cooling. In this work we calculate the luminosity of the νν¯-pairs emitted from neutron-star-matter with a magnetic field of about 1015 G. We find that the energy loss is much larger than that of the modified Urca process. The νν¯-pair emission processes in strong magnetic fields is expected to contribute significantly to the cooling of the magnetars.http://www.sciencedirect.com/science/article/pii/S0370269320302173Neutron-starNeutrino emissionStrong magnetic fieldRelativistic quantum approach
collection DOAJ
language English
format Article
sources DOAJ
author Tomoyuki Maruyama
A. Baha Balantekin
Myung-Ki Cheoun
Toshitaka Kajino
Grant J. Mathews
spellingShingle Tomoyuki Maruyama
A. Baha Balantekin
Myung-Ki Cheoun
Toshitaka Kajino
Grant J. Mathews
νν¯-Pair synchrotron emission in neutron-star matter based on a relativistic quantum approach
Physics Letters B
Neutron-star
Neutrino emission
Strong magnetic field
Relativistic quantum approach
author_facet Tomoyuki Maruyama
A. Baha Balantekin
Myung-Ki Cheoun
Toshitaka Kajino
Grant J. Mathews
author_sort Tomoyuki Maruyama
title νν¯-Pair synchrotron emission in neutron-star matter based on a relativistic quantum approach
title_short νν¯-Pair synchrotron emission in neutron-star matter based on a relativistic quantum approach
title_full νν¯-Pair synchrotron emission in neutron-star matter based on a relativistic quantum approach
title_fullStr νν¯-Pair synchrotron emission in neutron-star matter based on a relativistic quantum approach
title_full_unstemmed νν¯-Pair synchrotron emission in neutron-star matter based on a relativistic quantum approach
title_sort νν¯-pair synchrotron emission in neutron-star matter based on a relativistic quantum approach
publisher Elsevier
series Physics Letters B
issn 0370-2693
publishDate 2020-06-01
description We study the νν¯-pair synchrotron emission from electrons and protons in a relativistic quantum approach. This process occurs only in the presence of a strong magnetic field, and it is considered to be one of effective processes for neutron star cooling. In this work we calculate the luminosity of the νν¯-pairs emitted from neutron-star-matter with a magnetic field of about 1015 G. We find that the energy loss is much larger than that of the modified Urca process. The νν¯-pair emission processes in strong magnetic fields is expected to contribute significantly to the cooling of the magnetars.
topic Neutron-star
Neutrino emission
Strong magnetic field
Relativistic quantum approach
url http://www.sciencedirect.com/science/article/pii/S0370269320302173
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