On the spectra and pulse profiles of gamma-ray pulsars
1994; IOP Publishing; Volume: 420; Linguagem: Inglês
10.1086/187167
ISSN1538-4357
AutoresSteven J. Sturner, C. D. Dermer,
Tópico(s)Geophysics and Sensor Technology
Resumoview Abstract Citations (70) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS On the Spectra and Pulse Profiles of Gamma-Ray Pulsars Sturner, Steven J. ; Dermer, Charles D. Abstract We model spectra and pulse profiles of gamma-ray pulsars assuming that the pulsar's magnetic axis is nearly aligned with its rotation axis. In this model, the nonthermal energy of electrons flowing outward along field lines connected to the light cylinder is efficiently converted to gamma rays via magnetic Compton scattering of optical and soft X-ray photons. The hard photons initiate a pair cascade in the pulsar magnetosphere through magnetic pair production followed by synchrotron emission. The calculated spectra are used to fit gamma-ray pulsar observations. This model produces a hollow cone of emission which can reproduce both the broad single-peaked and narrow double-peaked pulse profiles observed from gamma-ray pulsars. Publication: The Astrophysical Journal Pub Date: January 1994 DOI: 10.1086/187167 Bibcode: 1994ApJ...420L..79S Keywords: Compton Effect; Light (Visible Radiation); Monte Carlo Method; Pair Production; Pulsar Magnetospheres; Pulsars; X Ray Spectra; Line Of Sight; Luminosity; Magnetic Fields; Magnetic Poles; Neutron Stars; Polar Caps; Astrophysics; GAMMA RAYS: THEORY; RADIATION MECHANISMS: NONTHERMAL; STARS: NEUTRON; STARS: PULSARS: GENERAL full text sources ADS | data products SIMBAD (6)
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