Accurate (ρ)over-bar and log g of δ Sct stars using Asteroseismology

被引：0

作者：

Garcia Hernandez, Antonio ^{[1
]}

Monteiro, Mario J. P. F. G. ^{[1
,2
]}

Guo, Zhao ^{[3
,4
]}

Reese, Daniel R. ^{[5
]}

Carlos Suarez, Juan ^{[6
,7
,8
]}

Martin, Susana ^{[7
,8
]}

Pascual-Granado, Javier ^{[7
,8
]}

Moya, Andres

Garrido, Rafael ^{[7
,8
]}

机构：

[1] Univ Porto, Inst Astrofis & Ciencias Espapo, CAUP, Rua Estrelas, P-4150762 Porto, Portugal

[2] Univ Porto, Dept Fis & Astron, Fac Ciencias, Rua Campo Alegre, P-4169007 Porto, Portugal

[3] Georgia State Univ, Ctr High Angular Resolut Astron, POB 5060, Atlanta, GA 30302 USA

[4] Georgia State Univ, Dept Phys & Astron, POB 5060, Atlanta, GA 30302 USA

[5] Univ Paris Diderot, UPMC Univ Paris 06, Sorbonne Univ,Sorbonne Paris Cite, LESIA,Observ Paris,PSL Res Univ,CNRS, F-92195 Meudon, France

[6] Univ Granada, Dept Fis Teor & Cosmos, Fuentenueva Campus, Granada 18007, Spain

[7] CSIC, Inst Astrofis Andalucia, Glorieta Astron S-N, E-18008 Granada, Spain

[8] Univ Int Valencia VIU, C Gorgos 5-7, Valencia, Spain

来源：

SEISMOLOGY OF THE SUN AND THE DISTANT STARS 2016-USING TODAY'S SUCCESSES TO PREPARE THE FUTURE | 2017年 / 160卷

关键词：

PERFORMANCE; MISSION;

D O I：

10.1051/epjconf/201716003003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this work, we present a new method to determine the surface gravity of delta Sct stars. We used a refined Delta nu-(rho) over bar relation and the stellar parallaxes or luminosities to determine their masses and radii. A comparison with the data obtained from the binary analysis, has shown that the values found by both methods are equivalent, within the uncertainties. Moreover, thanks to the refined relation, the uncertainties in log g are of the order of those usually estimated with high-resolution spectroscopy. Because of that, this new method to determine the surface gravity is an important step forward to break the degeneracy problem in the spectroscopic analysis.

引用

页数：6

共 31 条

[1]

Baglin A., 2006, ESA SP, V1306

[2]

Breger M, 1999, ASTRON ASTROPHYS, V341, P151

[3]

CHAPELLIER E, 2013, A A, V556

[4] HD 172189: another step in furnishing one of the best laboratories known for asteroseismic studies [J].

Creevey, O. L. ;

Uytterhoeven, K. ;

Martin-Ruiz, S. ;

Amado, P. J. ;

Niemczura, E. ;

Van Winckel, H. ;

Suarez, J. C. ;

Rolland, A. ;

Rodler, F. ;

Rodriguez-Lopez, C. ;

Rodriguez, E. ;

Raskin, G. ;

Rainer, M. ;

Poretti, E. ;

Palle, P. ;

Molina, R. ;

Moya, A. ;

Mathias, P. ;

Le Guillou, L. ;

Hadrava, P. ;

Fabbian, D. ;

Garrido, R. ;

Decin, L. ;

Cutispoto, G. ;

Casanova, V. ;

Broeders, E. ;

Arellano Ferro, A. ;

Aceituno, F. .

ASTRONOMY & ASTROPHYSICS, 2009, 507 (02) :901-910

[5] CoRoT 105906206: a short-period and totally eclipsing binary with a δ Scuti type pulsator [J].

da Silva, R. ;

Maceroni, C. ;

Gandolfi, D. ;

Lehmann, H. ;

Hatzes, A. P. .

ASTRONOMY & ASTROPHYSICS, 2014, 565

[6] Science performance of Gaia, ESA's space-astrometry mission [J].

de Bruijne, J. H. J. .

ASTROPHYSICS AND SPACE SCIENCE, 2012, 341 (01) :31-41

[7] Automated spectroscopic abundances of A and F-type stars using echelle spectrographs - II. Abundances of 140 A-F stars from ELODIE and CORALIE [J].

Erspamer, D ;

North, P .

ASTRONOMY & ASTROPHYSICS, 2003, 398 (03) :1121-1135

[8] An in-depth study of HD 174966 with CoRoT photometry and HARPS spectroscopy Large separation as a new observable for δ Scuti stars [J].

Garcia Hernandez, A. ;

Moya, A. ;

Michel, E. ;

Suarez, J. C. ;

Poretti, E. ;

Martin-Ruiz, S. ;

Amado, P. J. ;

Garrido, R. ;

Rodriguez, E. ;

Rainer, M. ;

Uytterhoeven, K. ;

Rodrigo, C. ;

Solano, E. ;

Rodon, J. R. ;

Mathias, P. ;

Rolland, A. ;

Auvergne, M. ;

Baglin, A. ;

Baudin, F. ;

Catala, C. ;

Samadi, R. .

ASTRONOMY & ASTROPHYSICS, 2013, 559

[9]

Garcia Hernandez A., 2009, A A, V506, p79G

[10] KIC 4544587: an eccentric, short-period binary system with δ Sct pulsations and tidally excited modes [J].

Hambleton, K. M. ;

Kurtz, D. W. ;

Prsa, A. ;

Guzik, J. A. ;

Pavlovski, K. ;

Bloemen, S. ;

Southworth, J. ;

Conroy, K. ;

Littlefair, S. P. ;

Fuller, J. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2013, 434 (02) :925-940

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