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Title: Spectral analysis of the gamma-ray background near the dwarf Milky Way satellite Segue 1: Improved limits on the cross section of neutralino dark matter annihilation

Abstract

The indirect detection of dark matter requires that dark matter annihilation products be discriminated from conventional astrophysical backgrounds. We re-analyze GeV-band gamma-ray observations of the prominent Milky Way dwarf satellite galaxy Segue 1, for which the expected astrophysical background is minimal. Here, we explicitly account for the angular extent of the conservatively expected gamma-ray signal and keep the uncertainty in the dark-matter profile external to the likelihood analysis of the gamma-ray data.

Authors:
 [1];  [1];  [1]
  1. Univ. of Potsdam (Germany). Inst. of Physics and Astronomy
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1356671
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 86; Journal Issue: 6; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS

Citation Formats

Baushev, A. N., Federici, S., and Pohl, M. Spectral analysis of the gamma-ray background near the dwarf Milky Way satellite Segue 1: Improved limits on the cross section of neutralino dark matter annihilation. United States: N. p., 2012. Web. doi:10.1103/PhysRevD.86.063521.
Baushev, A. N., Federici, S., & Pohl, M. Spectral analysis of the gamma-ray background near the dwarf Milky Way satellite Segue 1: Improved limits on the cross section of neutralino dark matter annihilation. United States. doi:10.1103/PhysRevD.86.063521.
Baushev, A. N., Federici, S., and Pohl, M. Thu . "Spectral analysis of the gamma-ray background near the dwarf Milky Way satellite Segue 1: Improved limits on the cross section of neutralino dark matter annihilation". United States. doi:10.1103/PhysRevD.86.063521. https://www.osti.gov/servlets/purl/1356671.
@article{osti_1356671,
title = {Spectral analysis of the gamma-ray background near the dwarf Milky Way satellite Segue 1: Improved limits on the cross section of neutralino dark matter annihilation},
author = {Baushev, A. N. and Federici, S. and Pohl, M.},
abstractNote = {The indirect detection of dark matter requires that dark matter annihilation products be discriminated from conventional astrophysical backgrounds. We re-analyze GeV-band gamma-ray observations of the prominent Milky Way dwarf satellite galaxy Segue 1, for which the expected astrophysical background is minimal. Here, we explicitly account for the angular extent of the conservatively expected gamma-ray signal and keep the uncertainty in the dark-matter profile external to the likelihood analysis of the gamma-ray data.},
doi = {10.1103/PhysRevD.86.063521},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 6,
volume = 86,
place = {United States},
year = {2012},
month = {9}
}

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Cited by: 10 works
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Works referenced in this record:

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    A global analysis of dark matter signals from 27 dwarf spheroidal galaxies using 11 years of Fermi-LAT observations
    journal, February 2020

    • Hoof, Sebastian; Geringer-Sameth, Alex; Trotta, Roberto
    • Journal of Cosmology and Astroparticle Physics, Vol. 2020, Issue 02
    • DOI: 10.1088/1475-7516/2020/02/012

    Indication of Gamma-Ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II
    journal, August 2015


    Comprehensive search for dark matter annihilation in dwarf galaxies
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    • Geringer-Sameth, Alex; Koushiappas, Savvas M.; Walker, Matthew G.
    • Physical Review D, Vol. 91, Issue 8
    • DOI: 10.1103/physrevd.91.083535