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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:
-
- 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:
- Journal Article: 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. https://doi.org/10.1103/PhysRevD.86.063521
Baushev, A. N., Federici, S., and Pohl, M. 2012.
"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. https://doi.org/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},
url = {https://www.osti.gov/biblio/1356671},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
issn = {1550-7998},
number = 6,
volume = 86,
place = {United States},
year = {Thu Sep 20 00:00:00 EDT 2012},
month = {Thu Sep 20 00:00:00 EDT 2012}
}
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Works referencing / citing this record:
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
Indication of Gamma-ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II
text, January 2018
- Geringer-Sameth, Alex; Walker, Matthew; Koushiappas, Savvas M.
- Figshare
Indication of Gamma-ray Emission from the Newly Discovered Dwarf Galaxy Reticulum II
text, January 2015
- Geringer-Sameth, Alex; Walker, Matthew; Koushiappas, Savvas M.
- Carnegie Mellon University
A Comprehensive Search for Dark Matter Annihilation in Dwarf Galaxies
text, January 2014
- Geringer-Sameth, Alex; Koushiappas, Savvas M.; Walker, Matthew G.
- arXiv
A Global Analysis of Dark Matter Signals from 27 Dwarf Spheroidal Galaxies using 11 Years of Fermi-LAT Observations
text, January 2018
- Hoof, Sebastian; Geringer-Sameth, Alex; Trotta, Roberto
- arXiv