Abstract
view Abstract Citations (67) References (32) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Resonance radiative transfer for cyclotron line emission with recoil Wasserman, I. ; Salpeter, E. Abstract The radiative transfer of cyclotron line photons through an optically thick resonant scattering atmosphere of recoiling electrons is discussed in light of the discovery of a 58 keV emission line in the spectrum of Her X-1 attributed to cyclotron emission near the magnetic poles of the accreting neutron star. Expressions are derived for the absorption and redistribution functions, core and wing scattering and approximate scaling laws for the main frequency shift, path length and number of scatters, taking into account electron recoil and features arising from the one-dimensional dynamics of the scattering electrons. It is found that most line photons escape in the red wing, forming a single sharp feature rather than the twin-peaked absorption profile characteristic of resonance radiative transfer without electron recoil. Results are noted to be in agreement with the Her X-1 observations, and to imply a depth of the line-emitting layer of less than 10 g/sq cm for the observed line width. Publication: The Astrophysical Journal Pub Date: November 1980 DOI: 10.1086/158426 Bibcode: 1980ApJ...241.1107W Keywords: Binary Stars; Cyclotron Radiation; Neutron Stars; Radiative Transfer; Stellar Mass Accretion; Stellar Spectra; X Ray Sources; Distribution Functions; Electromagnetic Absorption; Electron Scattering; Emission Spectra; Line Spectra; Resonance; X Ray Spectra; Astrophysics full text sources ADS |
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
