ASTEROSEISMIC DIAGRAMS FROM A SURVEY OF SOLAR-LIKE OSCILLATIONS WITH KEPLER

被引：50

作者：

White, Timothy R. ^{[1
,2
]}

Bedding, Timothy R. ^{[1
]}

Stello, Dennis ^{[1
]}

Appourchaux, Thierry ^{[3
]}

Ballot, Jerome ^{[4
,5
]}

Benomar, Othman ^{[1
,3
]}

Bonanno, Alfio ^{[6
]}

Broomhall, Anne-Marie ^{[7
]}

Campante, Tiago L. ^{[8
,9
,10
]}

Chaplin, William J. ^{[7
]}

Christensen-Dalsgaard, Jorgen ^{[9
]}

Corsaro, Enrico ^{[6
]}

Dogan, Gulnur ^{[9
]}

Elsworth, Yvonne P. ^{[7
]}

Fletcher, Stephen T. ^{[11
]}

Garcia, Rafael A. ^{[12
]}

Gaulme, Patrick ^{[3
]}

Handberg, Rasmus ^{[9
]}

Hekker, Saskia ^{[7
,13
]}

Huber, Daniel ^{[1
]}

Karoff, Christoffer ^{[9
]}

Kjeldsen, Hans ^{[9
]}

Mathur, Savita ^{[14
]}

Mosser, Benoit ^{[15
]}

Monteiro, Mario J. P. F. G. ^{[8
,10
]}

Regulo, Clara ^{[16
,17
]}

Salabert, David ^{[18
]}

Aguirre, Victor Silva ^{[19
]}

Thompson, Michael J. ^{[14
]}

Verner, Graham ^{[7
,20
]}

Morris, Robert L. ^{[21
]}

Sanderfer, Dwight T.

Seader, Shawn E. ^{[21
]}

机构：

[1] Univ Sydney, Sch Phys, Sydney Inst Astron SIfA, Sydney, NSW 2006, Australia

[2] Australian Astron Observ, Epping, NSW 1710, Australia

[3] Univ Paris 11, Inst Astrophys Spatiale, UMR8617, F-91405 Orsay, France

[4] CNRS, Inst Rech Astrophys & Planetol, F-31400 Toulouse, France

[5] Univ Toulouse, UPS OMP, IRAP, F-31400 Toulouse, France

[6] INAF Observ Astrofis Catania, I-95123 Catania, Italy

[7] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[8] Univ Porto, Ctr Astrofis, P-4150762 Oporto, Portugal

[9] Aarhus Univ, Dept Phys & Astron, Danish AsteroSeismol Ctr DASC, DK-8000 Aarhus C, Denmark

[10] Univ Porto, Fac Ciencias, P-4150762 Oporto, Portugal

[11] Sheffield Hallam Univ, Fac Arts Comp Engn & Sci, Mat Engn Res Inst, Sheffield S1 1WB, S Yorkshire, England

[12] Univ Paris 07, Ctr Saclay, IRFU SAp, CEA DSM CNRS,Lab AIM, F-91191 Gif Sur Yvette, France

[13] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 XH Amsterdam, Netherlands

[14] Natl Ctr Atmospher Res, High Altitude Observ, Boulder, CO 80307 USA

[15] Univ Paris 07, Univ Paris 06, Observ Paris, CNRS,LESIA, F-92195 Meudon, France

[16] Inst Astrofis Canarias, E-38200 San Cristobal la Laguna, Spain

[17] Univ La Laguna, Dept Astrofis, E-38206 San Cristobal la Laguna, Spain

[18] Univ Nice Sophia Antipolis, CNRS, Observ Cote Azur, F-06304 Nice 4, France

[19] Max Planck Inst Astrophys, D-85748 Garching, Germany

[20] Queen Mary Univ London, Sch Math Sci, Astron Unit, London E1 4NS, England

[21] NASA, Ames Res Ctr, SETI Inst, Moffett Field, CA 94035 USA

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2011年 / 742卷 / 01期

基金：

美国国家科学基金会; 澳大利亚研究理事会;

关键词：

stars:; oscillations; RED GIANTS; STAR; PARAMETERS; FREQUENCIES;

D O I：

10.1088/2041-8205/742/1/L3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Photometric observations made by the NASA Kepler Mission have led to a dramatic increase in the number of main-sequence and subgiant stars with detected solar-like oscillations. We present an ensemble asteroseismic analysis of 76 solar-type stars. Using frequencies determined from the Kepler time-series photometry, we have measured three asteroseismic parameters that characterize the oscillations: the large frequency separation (Delta nu), the small frequency separation between modes of l = 0 and l = 2 (delta nu(02)), and the dimensionless offset (epsilon). These measurements allow us to construct asteroseismic diagrams, namely the so-called Christensen-Dalsgaard diagram of delta nu(02) versus Delta nu, and the recently re-introduced epsilon diagram. We compare the Kepler results with previously observed solar-type stars and with theoretical models. The positions of stars in these diagrams places constraints on their masses and ages. Additionally, we confirm the observational relationship between epsilon and T-eff that allows for the unambiguous determination of radial order and should help resolve the problem of mode identification in F stars.

引用

页数：6

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