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Masses, oxygen, and carbon abundances in CHEPS dwarf stars

Pavlenko, Y. V.; Kaminsky, B. M.; Jenkins, James Stewart; Ivanyuk, O. M.; Jones, H.R.A.; Lyubchik, Y. P. (EDP Sciences, 2019)

Context. We report the results from the determination of stellar masses, carbon, and oxygen abundances in the atmospheres of 107 stars from the Calan-Hertfordshire Extrasolar Planet Search (CHEPS) programme. Our stars are ...

A SEARCH FOR UNRECOGNIZED CARBON-ENHANCED METAL-POOR STARS IN THE GALAXY

PLACCO, Vinicius M.; KENNEDY, Catherine R.; ROSSI, Silvia; BEERS, Timothy C.; LEE, Young Sun; CHRISTLIEB, Norbert; SIVARANI, Thirupathi; REIMERS, Dieter; WISOTZKI, Lutz (IOP PUBLISHING LTD, 2010)

We have developed a new procedure to search for carbon-enhanced metal-poor (CEMP) stars from the Hamburg/ESO (HES) prism-survey plates. This method employs an extended line index for the CH G band, which we demonstrate to ...

Pulsations of massive ZZ Ceti stars with carbon/oxygen and oxygen/neon cores

Córsico, Alejandro Hugo; García Berro, E.; Althaus, Leandro Gabriel; Isern, J. (2004)

Can pulsating PG 1159 stars place constraints on the occurrence of core overshooting?

Córsico, Alejandro Hugo; Althaus, Leandro Gabriel (2005)

New evolutionary models for massive ZZ Ceti stars : I. First results for their pulsational properties

Althaus, Leandro Gabriel; Serenelli, Aldo Marcelo; Córsico, Alejandro Hugo; Montgomery, M. H. (2003)

Elemental abundances and classification of carbon-enhanced metal-poor stars

Allen, D. M.; Ryan, S. G.; Rossi, S.; Beers, T. C.; Tsangarides, S. A. (EDP SCIENCES S ALES ULIS CEDEX A, 2012)

We present a detailed study of carbon-enhanced metal-poor (CEMP) stars, based on high-resolution spectroscopic observations of a sample of 18 stars. The stellar spectra for this sample were obtained at the 4.2 m William ...

Asteroseismological study of massive ZZ CETI stars with fully evolutionary models

Romero, Alejandra Daniela; Kepler, S.O.; Córsico, Alejandro Hugo; Althaus, Leandro Gabriel; Fraga, L. (2013)

Constraining the physics of carbon crystallization through pulsations of a massive DAV BPM37093

Corti, Mariela Alejandra (2015)

The R-process alliance: spectroscopic follow-up of low-metallicity star candidates from the best & brightest survey

Placco, Vinicius M.; Santucci, Rafael M.; Beers, Timothy C.; Chaname, Julio; Sepulveda, Maria Paz; Coronado, Johanna; Rossi, Silvia; Sun Lee, Young; Starkenburg, Else; Youakim, Kris (2019)

On the origin of white dwarfs with carbon-dominated atmospheres: The case of H1504+65

Althaus, Leandro Gabriel; Córsico, Alejandro Hugo; Torres, S.; García-Berro, E. (2009)

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