PREDICTIONS OF GAMMA-RAY EMISSION FROM GLOBULAR CLUSTER MILLISECOND PULSARS ABOVE 100 MeV
Abstract
The recent Fermi detection of the globular cluster (GC) 47 Tucanae highlighted the importance of modeling collective gamma-ray emission of millisecond pulsars (MSPs) in GCs. Steady flux from such populations is also expected in the very high energy domain covered by ground-based Cherenkov telescopes. We present pulsed curvature radiation (CR) as well as unpulsed inverse Compton (IC) calculations for an ensemble of MSPs in the GCs 47 Tucanae and Terzan 5. We demonstrate that the CR from these GCs should be easily detectable for Fermi, while constraints on the total number of MSPs and the nebular B-field may be derived using the IC flux components.
- Authors:
-
- Astrophysics Science Division, NASA/Goddard Space Flight Center, Greenbelt, MD 20771 (United States)
- Unit for Space Physics, North-West University, Potchefstroom Campus, Private Bag X6001, Potchefstroom 2520 (South Africa)
- Max-Planck-Institut fuer Kernphysik, P.O. Box 103938, D 69029 Heidelberg (Germany)
- Publication Date:
- OSTI Identifier:
- 21300750
- Resource Type:
- Journal Article
- Journal Name:
- Astrophysical Journal (Online)
- Additional Journal Information:
- Journal Volume: 696; Journal Issue: 1; Other Information: DOI: 10.1088/0004-637X/696/1/L52; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1538-4357
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; FORECASTING; GAMMA RADIATION; PULSARS; SIMULATION; TELESCOPES
Citation Formats
Venter, C, De Jager, O C, and Clapson, A -C. PREDICTIONS OF GAMMA-RAY EMISSION FROM GLOBULAR CLUSTER MILLISECOND PULSARS ABOVE 100 MeV. United States: N. p., 2009.
Web. doi:10.1088/0004-637X/696/1/L52; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA).
Venter, C, De Jager, O C, & Clapson, A -C. PREDICTIONS OF GAMMA-RAY EMISSION FROM GLOBULAR CLUSTER MILLISECOND PULSARS ABOVE 100 MeV. United States. https://doi.org/10.1088/0004-637X/696/1/L52; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)
Venter, C, De Jager, O C, and Clapson, A -C. 2009.
"PREDICTIONS OF GAMMA-RAY EMISSION FROM GLOBULAR CLUSTER MILLISECOND PULSARS ABOVE 100 MeV". United States. https://doi.org/10.1088/0004-637X/696/1/L52; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA).
@article{osti_21300750,
title = {PREDICTIONS OF GAMMA-RAY EMISSION FROM GLOBULAR CLUSTER MILLISECOND PULSARS ABOVE 100 MeV},
author = {Venter, C and De Jager, O C and Clapson, A -C},
abstractNote = {The recent Fermi detection of the globular cluster (GC) 47 Tucanae highlighted the importance of modeling collective gamma-ray emission of millisecond pulsars (MSPs) in GCs. Steady flux from such populations is also expected in the very high energy domain covered by ground-based Cherenkov telescopes. We present pulsed curvature radiation (CR) as well as unpulsed inverse Compton (IC) calculations for an ensemble of MSPs in the GCs 47 Tucanae and Terzan 5. We demonstrate that the CR from these GCs should be easily detectable for Fermi, while constraints on the total number of MSPs and the nebular B-field may be derived using the IC flux components.},
doi = {10.1088/0004-637X/696/1/L52; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)},
url = {https://www.osti.gov/biblio/21300750},
journal = {Astrophysical Journal (Online)},
issn = {1538-4357},
number = 1,
volume = 696,
place = {United States},
year = {Fri May 01 00:00:00 EDT 2009},
month = {Fri May 01 00:00:00 EDT 2009}
}
Other availability
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.