Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-01-06
Astronomy and Astrophysics
Astrophysics
Submitted to MNRAS
Scientific paper
Various types of galaxies observed in the cosmological scales show P-Cygni type profiles in the Lyman alpha emission lines. A Monte Carlo code is developed to investigate the Lyman alpha line transfer in an optically thick and moving medium with a careful consideration of the scattering in the damping wing. The main features in emergent line profiles include a primary emission peak in the red part and a much weaker secondary peak in the blue part. The primary peak recedes to the red and the width of the feature increases as $N_{HI}$ increases. The P-Cygni type profile in the Lyman alpha emission line of DLA 2233+131 ($z=3.15$) is noted to be similar to those found in the nearby galaxies and distant ($3
Ahn Sang-Hyeon
Lee Hee-Won
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