Evidence of Tidal Effects in Some Pulsating Stars. I CC Andromedae and Sigma Scorpii
dc.contributor.author | Fitch, W. S. | |
dc.date.accessioned | 2017-06-02T17:30:01Z | |
dc.date.available | 2017-06-02T17:30:01Z | |
dc.date.issued | 1966-10 | |
dc.identifier.citation | APJ 148: 481-496 (1967) | en |
dc.identifier.uri | http://hdl.handle.net/10150/623810 | |
dc.description.abstract | Analyses of the light variation of the 6 Scuti star CC Andromedae and of the radial velocity variation of the ß Canis Majoris star 6 Scorpii, a single -line spectroscopic binary, indicate that the long period modulations exhibited are caused by tidal deformations induced in the hydrogen and /or helium ionization zones of each primary by a faint companion, resulting in surface zonal variations of the amplitude and phase of each primary's normal radial pulsations. The variations in the tide raising potential calculated at the center of the apparent disk of o Scorpii correlate very strongly with the observed variations in the phase zero -point of the fundamental pulsation. It is suggested that all the ß Canis Majoris and 6 Scuti stars exhibiting long period modulation, and probably also the RR Lyrae stars showing a Blazhko effect, do so because of tidal perturbations induced by faint companions. | |
dc.language.iso | en_US | en |
dc.publisher | Steward Observatory, The University of Arizona (Tucson, Arizona) | en |
dc.relation.ispartofseries | Preprints of the Steward Observatory #3 | en |
dc.relation.url | http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1967ApJ...148..481F&db_key=AST&data_type=HTML&format=&high=3ed65e9cd003484 | en |
dc.rights | Copyright © All Rights Reserved. | en |
dc.source | Steward Observatory Parker Library SO QB 4 .S752 ARCH | en |
dc.subject | Tides | en |
dc.subject | Pulsations | en |
dc.subject | Delta Scuti stars | en |
dc.subject | Spectroscopic binary stars | en |
dc.title | Evidence of Tidal Effects in Some Pulsating Stars. I CC Andromedae and Sigma Scorpii | en_US |
dc.type | text | en |
dc.type | Article | en |
dc.contributor.department | Univ Arizona, Steward Observ | en |
dc.description.collectioninformation | This title from the Steward Observatory Preprints collection is made available by the Steward Observatory Parker Library and the University Libraries, The University of Arizona. If you have questions about titles in this collection, please contact Parker Library librarian Betty Fridena, bfridena@as.arizona.edu. | en |
refterms.dateFOA | 2018-06-17T00:45:22Z | |
html.description.abstract | Analyses of the light variation of the 6 Scuti star CC Andromedae and of the radial velocity variation of the ß Canis Majoris star 6 Scorpii, a single -line spectroscopic binary, indicate that the long period modulations exhibited are caused by tidal deformations induced in the hydrogen and /or helium ionization zones of each primary by a faint companion, resulting in surface zonal variations of the amplitude and phase of each primary's normal radial pulsations. The variations in the tide raising potential calculated at the center of the apparent disk of o Scorpii correlate very strongly with the observed variations in the phase zero -point of the fundamental pulsation. It is suggested that all the ß Canis Majoris and 6 Scuti stars exhibiting long period modulation, and probably also the RR Lyrae stars showing a Blazhko effect, do so because of tidal perturbations induced by faint companions. |