Silvia Pedicelli:Classical Cepheids as tracers of the disk abundance gradient
- Livro de bolso ISBN: 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… mais…
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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Silvia Pedicelli:Classical Cepheids as tracers of the disk abundance gradient : Classical Cepheids are something more then distance indicators
- Livro de bolso 2014, ISBN: 3659534757
[EAN: 9783659534751], Neubuch, [PU: LAP LAMBERT Academic Publishing], nach der Bestellung gedruckt Neuware - Classical Cepheids are the most popular primary distance indicator. They obey … mais…
[EAN: 9783659534751], Neubuch, [PU: LAP LAMBERT Academic Publishing], nach der Bestellung gedruckt Neuware - 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. 184 pp. Englisch, Books<
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Classical Cepheids as tracers of the disk abundance gradient - Classical Cepheids are something more then distance indicators
- Livro de bolso2014, ISBN: 9783659534751
[ED: Taschenbuch / Paperback], [PU: LAP Lambert Academic Publishing], Classical Cepheids are the most popular primary distance indicator. They obey to well defined optical and near-infrar… mais…
[ED: Taschenbuch / Paperback], [PU: LAP Lambert Academic Publishing], 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., [SC: 0.00], Neuware, gewerbliches Angebot, H: 220mm, B: 150mm, T: 9mm, [GW: 261g]<
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Silvia Pedicelli:Classical Cepheids as tracers of the disk abundance gradient
- novo libro ISBN: 9783659534751
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 e… mais…
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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Pedicelli, Silvia:Classical Cepheids as tracers of the disk abundance gradient
- Livro de bolso 2014, ISBN: 3659534757
[EAN: 9783659534751], Neubuch, [PU: LAP Lambert Academic Publishing], PHYSIK ASTRONOMIE, Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung für Sie gedruckt. C… mais…
[EAN: 9783659534751], Neubuch, [PU: LAP Lambert Academic Publishing], PHYSIK ASTRONOMIE, Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung für Sie gedruckt. Classical Cepheids are the most popular primary distance indicator. They obey to well defined optical and near-infrared (NIR) Period-Luminosity (PL) relations a, Books<
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