Abstract
view Abstract Citations (126) References (28) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Line Profile Variations of Epsilon Persei. I. Evidence for Multimode Nonradial Pulsations Gies, D. R. ; Kullavanijaya, A. Abstract The authors present high signal-to-noise ratio spectra of the Si III λλ4552, 4567, and 4574 lines of the line profile variable star ɛ Per obtained over one night in 1985 December and four nights in 1986 November using the McDonald Observatory Octicon, an array of eight Reticon detectors. Periodic signals in the time evolution of the line profiles have been searched for by a power spectrum analysis. Four dominating periods of 4.47, 3.84, 3.04, and 2.26 hr are found. The authors argue that the only plausible explanation for these variations is photospheric nonradial pulsations, and they derive the order of the nonradial pulsation modes m = -3, -4, -5, and -6, for the above periods. Publication: The Astrophysical Journal Pub Date: March 1988 DOI: 10.1086/166140 Bibcode: 1988ApJ...326..813G Keywords: B Stars; Line Spectra; Stellar Oscillations; Stellar Spectra; Variable Stars; Visible Spectrum; Gray Scale; Hot Stars; Power Spectra; Radial Velocity; Signal To Noise Ratios; Time Series Analysis; Astrophysics; LINE PROFILES; STARS: INDIVIDUAL CONSTELLATION NAME: EPSILON PERSEI; STARS: PULSATION full text sources ADS | data products SIMBAD (1)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
