Doppler width of spectral lines

1Mamedov, SG, 2Kuli-Zade, DM, 2Alieva, ZF, 1Musaev, MM
1Nasir al-Din al-Tusi Shamakhi Astrophysical Observatory, Pirqulu, Azerbaijan
2Baku State University of Azerbaijan, Baku, Azerbaijan
Kinemat. fiz. nebesnyh tel (Online) 2018, 34(2):76-80
Start Page: Notes
Language: Russian

In this paper, cases of incorrect recording of expressions for the Doppler width of spectral lines by some authors analyzed in detail, resulting in the calculations of these authors of thermal velocities values are inaccurate. As an example it was re-calculated the values of thermal velocities calculated in the article by Patsouracos and Klimchuk [Astrophys. J. 2006. 647. P. 1452]. Calculations showed that the values obtained by the authors of nonthermal velocities are overestimated by 30—40 % compared to the true values.

Keywords: Doppler width, nonthermal velocities

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