Open AccessThe orbital modulation in the radio emission of Cygnus X‐1
Author(s) -
Brocksopp C.,
Fender R. P.,
Pooley G. G.
Publication year - 2002
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2002.05813.x
Subject(s) - physics , astrophysics , light curve , modulation (music) , amplitude , astronomy , jet (fluid) , orbital motion , orbital speed , optics , angular momentum , classical mechanics , thermodynamics , acoustics
We present model light curves which have been created in order to explain the orbital modulation observed in the radio emission of Cyg X‐1. We invoke variable absorption by the stellar wind as the black hole jet orbits around the OB companion star and find that a very simple model is able to reproduce the amplitudes and frequency dependence of the observed light curves.