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Classical Cepheids as tracers of the disk abundance gradient - Silvia Pedicelli
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Classical Cepheids as tracers of the disk abundance gradient - Taschenbuch

ISBN: 9783659534751

ID: 9783659534751

Classical Cepheids are something more then distance indicators Classical Cepheids are the most popular primary distance indicator. They obey to well defined optical and near-infrared (NIR) Period-Luminosity (PL) relations and their distances can be estimated with an accuracy of a few percent. They also are, the best tracers of intermediate-mass stars. In particular, since they are distributed across the Galactic disk they can be adopted to trace the iron and heavy element radial gradients. In the past few years, significant progress has been made to understand and characterize the influence that chemical composition may have on the Cepheids Period-Luminosity relation but this issue is still unsettled. Although the existence of the Galactic abundance gradient is now widely accepted, its value still need to be established. To better understand these fundamental points, we focused our attenction on two main topics: i) the influence of the stellar iron content on the PL relation in the V and in the K band. ii) the behavior of the Galactic iron gradient between 5 and 17 kpc, using homogeneous iron abundances for 270 Galactic Cepheids located across the disk together with accurate distance determinations. Classical Cepheids as tracers of the disk abundance gradient: Classical Cepheids are the most popular primary distance indicator. They obey to well defined optical and near-infrared (NIR) Period-Luminosity (PL) relations and their distances can be estimated with an accuracy of a few percent. They also are, the best tracers of intermediate-mass stars. In particular, since they are distributed across the Galactic disk they can be adopted to trace the iron and heavy element radial gradients. In the past few years, significant progress has been made to understand and characterize the influence that chemical composition may have on the Cepheids Period-Luminosity relation but this issue is still unsettled. Although the existence of the Galactic abundance gradient is now widely accepted, its value still need to be established. To better understand these fundamental points, we focused our attenction on two main topics: i) the influence of the stellar iron content on the PL relation in the V and in the K band. ii) the behavior of the Galactic iron gradient between 5 and 17 kpc, using homogeneous iron abundances for 270 Galactic Cepheids located across the disk together with accurate distance determinations., LAP Lambert Academic Publishing

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Classical Cepheids as tracers of the disk abundance gradient - Silvia Pedicelli
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Classical Cepheids as tracers of the disk abundance gradient - neues Buch

ISBN: 9783659534751

ID: a343b2679cda661f14294411459d893c

Classical Cepheids are the most popular primary distance indicator. They obey to well defined optical and near-infrared (NIR) Period-Luminosity (PL) relations and their distances can be estimated with an accuracy of a few percent. They also are, the best tracers of intermediate-mass stars. In particular, since they are distributed across the Galactic disk they can be adopted to trace the iron and heavy element radial gradients. In the past few years, significant progress has been made to understand and characterize the influence that chemical composition may have on the Cepheids Period-Luminosity relation but this issue is still unsettled. Although the existence of the Galactic abundance gradient is now widely accepted, its value still need to be established. To better understand these fundamental points, we focused our attenction on two main topics: i) the influence of the stellar iron content on the PL relation in the V and in the K band. ii) the behavior of the Galactic iron gradient between 5 and 17 kpc, using homogeneous iron abundances for 270 Galactic Cepheids located across the disk together with accurate distance determinations. Bücher / Naturwissenschaften, Medizin, Informatik & Technik / Physik & Astronomie

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Classical Cepheids as Tracers of the Disk Abundance Gradient - Pedicelli Silvia
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Pedicelli Silvia:
Classical Cepheids as Tracers of the Disk Abundance Gradient - neues Buch

ISBN: 9783659534751

Pedicelli Silvia,Paperback, English-language edition,Pub by AV Akademikerverlag GmbH & Co. KG. Books Books ~~ Science~~ Physics ~~ General Classical-Cepheids-as-tracers-of-the-disk-abundance-gradient~~Pedicelli-Silvia AV Akademikerverlag GmbH & Co. KG.

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Classical Cepheids as Tracers of the Disk Abundance Gradient
Autor:

Pedicelli Silvia

Titel:

Classical Cepheids as Tracers of the Disk Abundance Gradient

ISBN-Nummer:

9783659534751

Detailangaben zum Buch - Classical Cepheids as Tracers of the Disk Abundance Gradient


EAN (ISBN-13): 9783659534751
Taschenbuch
Herausgeber: AV Akademikerverlag GmbH & Co. KG.

Buch in der Datenbank seit 10.10.2014 09:43:25
Buch zuletzt gefunden am 03.09.2016 18:46:45
ISBN/EAN: 9783659534751

ISBN - alternative Schreibweisen:
978-3-659-53475-1

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