Year: 2011
Type: article
Abstract: Most pulsars observed by the Fermi Large Area Telescope have γ-ray luminosities scaling with spin-down power as . However, there exist one detection and several upper limits an order of magnitude or more fainter than this trend. We describe these "sub-luminous" γ-ray pulsars and discuss the case for this being an orientation effect. Of the 12 known young radio pulsars with and d ⩽ 2 kpc several are substantially sub-luminous. The limited available geometrical constraints favor aligned geometries for these pulsars, although no one case for alignment is compelling. In this scenario GeV emission detected from such sub-luminous pulsars can be due to a lower altitude, lower-power accelerator gap.
Source: The Astrophysical Journal
Institutions: Stanford University, Commonwealth Scientific and Industrial Research Organisation, Australia Telescope National Facility, Centre National de la Recherche Scientifique, Observatoire de Paris, Observatoire Radioastronomique de Nançay, Laboratoire de Physique des deux infinis Bordeaux, Institut National de Physique Nucléaire et de Physique des Particules, Université Bordeaux-I
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funders: Smithsonian Institution, U.S. Department of Energy, National Aeronautics and Space Administration, Ministry of Education, Culture, Sports, Science and Technology, Agenzia Spaziale Italiana, Vetenskapsrådet, Centre National de la Recherche Scientifique, Istituto Nazionale di Astrofisica, High Energy Accelerator Research Organization, Istituto Nazionale di Fisica Nucleare, Smithsonian Astrophysical Observatory, Japan Aerospace Exploration Agency
Awards: G1390571956, G3561758408, G3815726687, WE PROPOSE TO EXTEND OUR PULSAR MODELING PROGRAM EXTRACTING CONSTRAINTS ON THE CONTRIBUTIONS TO THE HIGH ENERGY BACKGROUNDS. OUR TOOLS FOR BEAM SIMU, G5780980149, WE PROPOSE A PROGRAM OF BEAMING MODEL AND POPULATION COMPUTATIONS TO HELP INTERPRET THE MENAGERIE OF
OpenAlex ID: W1607720132