NDLI: Blazhko effect

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Blazhko effect

Content Provider	NASA Technical Reports Server (NTRS)
Author	Teays, Terry
Copyright Year	1996
Description	The cause of the Blazhko effect, the long-term modulation of the light and radial velocity curves of some RR Lyr stars, is still not understood. The observational characteristics of the Blazhko effect are discussed. Some preliminary results are presented from two recent campaigns to observe RR Lyr, using the International Ultraviolet Explorer along with ground-based spectroscopy and photometry, throughout a pulsation cycle, at a variety of Blazhko phases. A set of ultraviolet light curves have been generated from low dispersion IUE spectra. In addition, the (visual) light curves from IUE's Fine Error Sensor are analyzed using the Fourier decomposition technique. The values of the parameters Psi(sub 21) and R(sub 21) at different Blazhko phases of RR Lyr span the range of values found for non-Blazhko variables of similar period.
File Size	533686
Page Count	11
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19970003546
Archival Resource Key	ark:/13960/t8pc7xg22
Language	English
Publisher Date	1996-01-01
Access Restriction	Open
Subject Keyword	Astronomy Spectroscopy Ultraviolet Radiation Spaceborne Astronomy Spectrum Analysis Light Modulation Ultraviolet Spectra Iue Light Curve Decomposition Radial Velocity Lyra Constellation Photometry Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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