Determination of microturbulent velocity of í Herculis

Author

Said, N.M.M. ; Razelan, M.M. ; Aziz, A.H.A. ; Chong, H.Y. ; Zainuddin, M.Z.

Author_Institution

Sch. of Phys., Univ. of Sci. Malaysia, Kubang Kerian, Malaysia

fYear

2013

fDate

1-3 July 2013

Firstpage

13

Lastpage

16

Abstract

This paper represents the analysis of microturbulent velocity (v_turb) of the early B-type star í Herculis, based on 199 spectra taken from Ritter Observatory and Elodie archives data. Determination of microturbulent velocity from this star was measured using the Doppler broadening equation and the values range from 1.50 - 5.83 kms^-1 for Ritter Observatory and 2.21 - 5.33 kms^-1 for Elodie archives data. We conclude that the varying values of the microturbulent velocity in this study are related to the instability of the star´s photosphere.

Keywords

binary stars; stellar atmospheres; stellar rotation; stellar spectra; turbulence; variable stars; Doppler broadening equation; Elodie archive data; HD 160762; Ritter Observatory data; early B-type star; i Her; slowly pulsating B stars; spectroscopic binary; stellar microturbulent velocity determination; stellar photospheric instability; stellar rotation velocity; stellar spectra; velocity 1.50 km/s to 5.33 km/s; Astrophysics; Doppler effect; Educational institutions; Equations; Instruments; Observatories; individual (í Herculis); line profile; microturbulent; star;

fLanguage

English

Publisher

ieee

Conference_Titel

Space Science and Communication (IconSpace), 2013 IEEE International Conference on

Conference_Location

Melaka

ISSN

2165-4301

Type

conf

DOI

10.1109/IconSpace.2013.6599424

Filename

6599424