... Reliable, independent distance estimates for LV galaxies are being gathered either from the luminosity of Cepheids, the tip of the red giant branch, or surface brightness fluctuations. ...
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Ссылки http://www.atnf.csiro.au/news/newsletter/oct07/ATNFnews_07Oct_lowres.pdf -- 2399.1 Кб -- 08.01.2008 Похожие документы
... The professional astronomers were interested in variables of all types, from eruptive completely unpredictable systems like the gamma-bursters and the cataclysmic variables through Cepheids to the long period Mira and quasar variables. ...
... Whilst this often occurs when discussing variable stars and Cepheids in particular it is probably better to introduce it early when discussing magnitude. ...
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Ссылки http://www.atnf.csiro.au/outreach/education/teachers/resources/ConceptualAstrophysics2004.pdf -- 786.9 Кб -- 22.01.2014 Похожие документы
... Improving the Extragalactic Distance Scale: HST & Gemini Observations of Cepheids in the Maser-Host Galaxy NGC 4258 - Dr Lucas Macri Colloquium . ...
... Improving the Extragalactic Distance Scale: HST & Gemini Observations of Cepheids in the Maser-Host Galaxy NGC 4258 - Dr Lucas Macri Colloquium . ...
... Improving the Extragalactic Distance Scale: HST & Gemini Observations of Cepheids in the Maser-Host Galaxy NGC 4258 - Dr Lucas Macri Colloquium . ...
... The effect of metallicity on the Cepheid Period-Luminosity relation from a Baade-Wesselink analysis of Cepheids in the Galaxy and in the Small Magellanic Cloud . ...
... While HST is needed in most cases to provide independent distances (using the tip of the red giant branch, Cepheid variables and surface brightness fluctuations) for the LV galaxies, the existing telescopes are capable to obtain the necessary optical ...