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Cepheids and the Distance Ladder

Date Issued
2016
Author(s)
DOI
Abstract
Classical Cepheids plays a key role in the calibration of the extragalactic distance scale. In spite of their importance, some uncertainties related to their properties remain. In particular, a general consensus on the possible dependence on the metallicity of the host galaxy of the Cepheid properties has not been reached yet. These uncertainties could produce significant systematic errors in the calibration of the secondary distance indicators we need to reach cosmologically significant distances and in turn in the evaluation of the Hubble constant H 0. Possible solutions are discussed.
Coverage
The Universe of Digital Sky Surveys
All editors
Napolitano, Nicola R.; Longo, Giuseppe; Marconi, Marcella; Paolillo, Maurizio; Iodice, Enrichetta
Series
Volume
42
Start page
79
Conferenece
The Universe of Digital Sky Surveys: a Meeting to Honour the 70th Birthday of Massimo Capaccioli
Conferenece place
Napoli, Italia
Conferenece date
25-28 November, 2014
Uri
Url
Issn Identifier
1570-6591
Ads BibCode
2016ASSP...42...79M
Rights
open.access
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