The gamma-ray pulsar population of globular clusters: implications for the GeV excess

Hooper, Dan; Linden, Tim

doi:10.1088/1475-7516/2016/08/018

Title: The gamma-ray pulsar population of globular clusters: implications for the GeV excess

Journal Article · Mon Aug 01 00:00:00 EDT 2016 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2016/08/018· OSTI ID:22679530

Hooper, Dan ^[1]; Linden, Tim ^[2]

Fermi National Accelerator Laboratory, Center for Particle Astrophysics, Batavia, IL 60510 (United States)
Ohio State University, Center for Cosmology and AstroParticle Physcis (CCAPP), Columbus, OH 43210 (United States)

It has been suggested that the GeV excess, observed from the region surrounding the Galactic Center, might originate from a population of millisecond pulsars that formed in globular clusters. With this in mind, we employ the publicly available Fermi data to study the gamma-ray emission from 157 globular clusters, identifying a statistically significant signal from 25 of these sources (ten of which are not found in existing gamma-ray catalogs). We combine these observations with the predicted pulsar formation rate based on the stellar encounter rate of each globular cluster to constrain the gamma-ray luminosity function of millisecond pulsars in the Milky Way's globular cluster system. We find that this pulsar population exhibits a luminosity function that is quite similar to those millisecond pulsars observed in the field of the Milky Way (i.e. the thick disk). After pulsars are expelled from a globular cluster, however, they continue to lose rotational kinetic energy and become less luminous, causing their luminosity function to depart from the steady-state distribution. Using this luminosity function and a model for the globular cluster disruption rate, we show that millisecond pulsars born in globular clusters can account for only a few percent or less of the observed GeV excess. Among other challenges, scenarios in which the entire GeV excess is generated from such pulsars are in conflict with the observed mass of the Milky Way's Central Stellar Cluster.

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OSTI ID:: 22679530

Journal Information:: Journal of Cosmology and Astroparticle Physics, Vol. 2016, Issue 08; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516

Country of Publication:: United States

Language:: English

References (6)

INTEGRAL/IBIS 9-year Galactic hard X-ray survey Krivonos, R.; Tsygankov, S.; Lutovinov, S. Centre de Donnees Strasbourg (CDS) https://doi.org/10.26093/cds/vizier.35450027	dataset	January 2012
Millisecond pulsars and the Galactic Center gamma-ray excess: the importance of luminosity function and secondary emission Petrović, Jovana; Serpico, Pasquale D.; Zaharijas, Gabrijela Journal of Cosmology and Astroparticle Physics, Vol. 2015, Issue 02 https://doi.org/10.1088/1475-7516/2015/02/023	journal	February 2015
Hidden on-shell mediators for the Galactic Center $γ$ -ray excess Abdullah, Mohammad; DiFranzo, Anthony; Rajaraman, Arvind Physical Review D, Vol. 90, Issue 3 https://doi.org/10.1103/physrevd.90.035004	journal	August 2014
Low-mass X-ray binaries in the bulge of the Milky Way Revnivtsev, M.; Lutovinov, A.; Churazov, E. arXiv https://doi.org/10.48550/arxiv.0805.0259	text	January 2008
Flavored Dark Matter and the Galactic Center Gamma-Ray Excess Agrawal, Prateek; Batell, Brian; Hooper, Dan arXiv https://doi.org/10.48550/arxiv.1404.1373	text	January 2014
The Galactic Center Excess from the Bottom Up Izaguirre, Eder; Krnjaic, Gordan; Shuve, Brian arXiv https://doi.org/10.48550/arxiv.1404.2018	text	January 2014

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