{"title":"Mira Variables. Molecular Spectra","authors":"V. E. Panchuk, V. G. Klochkova","doi":"10.1134/S1990341323020037","DOIUrl":null,"url":null,"abstract":"<p>We present the second part of the review of spectroscopic observations of Mira variables in the optical and near infrared. The role of various structures (atmosphere, envelopes) in the formation of the optical spectrum is estimated. The thickness of the molecular layer that creates the observed effects of distortion of the emission spectra is estimated based on two model approximations. Assuming that a significant part of the optical spectrum is formed in the circumstellar envelopes, the known photometric and spectroscopic effects are discussed.</p>","PeriodicalId":478,"journal":{"name":"Astrophysical Bulletin","volume":"78 2","pages":"174 - 193"},"PeriodicalIF":1.3000,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Astrophysical Bulletin","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1990341323020037","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
引用次数: 0
Abstract
We present the second part of the review of spectroscopic observations of Mira variables in the optical and near infrared. The role of various structures (atmosphere, envelopes) in the formation of the optical spectrum is estimated. The thickness of the molecular layer that creates the observed effects of distortion of the emission spectra is estimated based on two model approximations. Assuming that a significant part of the optical spectrum is formed in the circumstellar envelopes, the known photometric and spectroscopic effects are discussed.
期刊介绍：
Astrophysical Bulletin is an international peer reviewed journal that publishes the results of original research in various areas of modern astronomy and astrophysics, including observational and theoretical astrophysics, physics of the Sun, radio astronomy, stellar astronomy, extragalactic astronomy, cosmology, and astronomy methods and instrumentation.
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