CHEMICAL ABUNDANCES FOR A-AND F-TYPE SUPERGIANT STARS

被引：0

作者：

Molina, R. E. ^{[1
]}

Rivera, H. ^{[1
]}

机构：

[1] Univ Nacl Expt Tachira, Lab Invest Fis Aplicada & Computac, San Cristobal, Tachira, Venezuela

来源：

REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA | 2016年 / 52卷 / 02期

关键词：

stars: abundances; stars: atmospheres; stars: evolution; supergiants; M-CIRCLE-DOT; RADIAL-VELOCITIES; SPECTRAL CLASSIFICATION; STELLAR ABUNDANCES; SODIUM ENRICHMENT; OXYGEN ABUNDANCES; PARAMETERS; NITROGEN; CARBON; CNO;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the stellar parameters and elemental abundances of a set of A-F-type supergiant stars HD 45674, HD 180028, HD 194951 and HD 224893 using high resolution (R approximate to 42, 000) spectra taken from ELODIE library. We present the first results of the abundance analysis for HD 45674 and HD 224893. We reaffirm the abundances for HD 180028 and HD 194951 studied previously by Luck. Alpha elements indicate that the objects belong to the thin disc population. Their abundances and their location on the Hertzsprung-Russell diagram seem to indicate that HD 45675, HD 194951 and HD 224893 are in the post-first dredge-up (post-1DUP) phase, and that they are moving in the red-blue loop region. HD 180028, on the contary, shows typical abundances of Population I, but its evolutionary status cannot be satisfactorily defined.

引用

页码：399 / 411

页数：13

共 50 条

[31] Chemical composition of Galactic OB stars - I. CNO abundances in O9 stars
Villamariz, MR
Herrero, A
Becker, SR
Butler, K
ASTRONOMY & ASTROPHYSICS, 2002, 388 (03): : 940 - 956
[32] Chemical abundances of solar neighbourhood RR Lyrae stars
Pancino, E.
Britavskiy, N.
Romano, D.
Cacciari, C.
Mucciarelli, A.
Clementini, G.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 447 (03) : 2404 - 2419
[33] Chemical abundances of very metal-poor stars
Zhang, HW
Zhao, G
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2005, 364 (02) : 712 - 724
[34] Spectroscopic survey of Kepler stars.a∼... I. HERMES/Mercator observations of A- and F-type stars
Niemczura, E.
Murphy, S. J.
Smalley, B.
Uytterhoeven, K.
Pigulski, A.
Lehmann, H.
Bowman, D. M.
Catanzaro, G.
van Aarle, E.
Bloemen, S.
Briquet, M.
De Cat, P.
Drobek, D.
Eyer, L.
Gameiro, J. F. S.
Gorlova, N.
Kaminski, K.
Lampens, P.
Marcos-Arenal, P.
Papics, P. I.
Vandenbussche, B.
Van Winckel, H.
Steslicki, M.
Fagas, M.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 450 (03) : 2764 - 2783
[35] Chemical analysis of CH stars - II. Atmospheric parameters and elemental abundances
Karinkuzhi, Drisya
Goswami, Aruna
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2015, 446 (03) : 2348 - 2362
[36] Photospheric CNO abundances of solar-type stars
Takeda, Y
Honda, S
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2005, 57 (01) : 65 - 82
[37] Li abundances in F stars: planets, rotation, and Galactic evolution
Delgado Mena, E.
Bertran de Lis, S.
Adibekyan, V. Zh.
Sousa, S. G.
Figueira, P.
Mortier, A.
Gonzalez Hernandez, J. I.
Tsantaki, M.
Israelian, G.
Santos, N. C.
ASTRONOMY & ASTROPHYSICS, 2015, 576
[38] Chemical abundances of 20 barium stars from the OHP spectra
Yang, Guochao
Zhao, Jingkun
Liang, Yanchun
Spite, Monique
Spite, Francois
Shi, Jianrong
Liu, Shuai
Liu, Nian
Cui, Wenyuan
Zhao, Gang
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2024, 534 (04) : 3104 - 3119
[39] The effects of mass loss on the evolution of chemical abundances in Fm stars
Vick, M.
Michaud, G.
CONTRIBUTIONS OF THE ASTRONOMICAL OBSERVATORY SKALNATE PLESO, 2008, 38 (02): : 135 - 140
[40] Chemical Abundances of Metal-poor stars in Dwarf Galaxies
Venn, Kim A.
Jablonka, Pascale
Hill, Vanessa
Starkenburg, Else
Lemasle, Bertrand
Shetrone, Matthew
Irwin, Mike
Norris, John
Yong, David
Gilmore, Gerry
Salvadori, Stephania
Skuladottir, Asa
Tolstoy, Eline
GENERAL ASSEMBLY OF GALAXY HALOS: STRUCTURE, ORIGIN AND EVOLUTION, 2016, 11 (S317): : 159 - 163

← 1 2 3 4 5 →