Presentation Title

Variable “Be” Stars in the Perseus Constellation

Presenter Information

Peter Barsevskis

Location

House of Learning Library, 3rd flor

Start Date

18-3-2016 12:00 PM

End Date

18-3-2016 6:00 PM

Abstract

Over four nights between September 26 and October 23 2015 the young open cluster of stars named “h Persei” was observed using the Celestron Telescope at Thompson Rivers University’s observatory.The two stars Oo 1278 and Oo 1282 are the primary focus of this research project.Through prior observations by Majewska et al. (2008) the two stars in consideration have been classified as Be variable stars. Most of the stars in the night sky have variable properties, where the brightness of the star changes with respect to time.By studying the variability of stars we are able to determine physical properties of those stars. Using a CCD camera attached to the telescope, data of the stars in question were collected. The CCD images were reduced using an image software package called IRAF (Image Reduction and Analysis Facilty) and will be analyzed using daophot tasks within IRAF. The apparent magnitudes of the two stars will be found and plotted against time to create light curves to study the variability. Fourier analysis may be used to search for multiple periods if needed. The results are expected to show that both stars have a short-term variability much like other Be type stars. This study is contributing original research in this area of astronomy since these two stars were targets of only one other study and are relatively unknown.

Department

Physics

Faculty Advisor

Joanne Rosvick

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Mar 18th, 12:00 PM Mar 18th, 6:00 PM

Variable “Be” Stars in the Perseus Constellation

House of Learning Library, 3rd flor

Over four nights between September 26 and October 23 2015 the young open cluster of stars named “h Persei” was observed using the Celestron Telescope at Thompson Rivers University’s observatory.The two stars Oo 1278 and Oo 1282 are the primary focus of this research project.Through prior observations by Majewska et al. (2008) the two stars in consideration have been classified as Be variable stars. Most of the stars in the night sky have variable properties, where the brightness of the star changes with respect to time.By studying the variability of stars we are able to determine physical properties of those stars. Using a CCD camera attached to the telescope, data of the stars in question were collected. The CCD images were reduced using an image software package called IRAF (Image Reduction and Analysis Facilty) and will be analyzed using daophot tasks within IRAF. The apparent magnitudes of the two stars will be found and plotted against time to create light curves to study the variability. Fourier analysis may be used to search for multiple periods if needed. The results are expected to show that both stars have a short-term variability much like other Be type stars. This study is contributing original research in this area of astronomy since these two stars were targets of only one other study and are relatively unknown.