Zobrazeno 1 - 4
of 4
pro vyhledávání: '"G. R. Lauffer"'
Autor:
Alejandra D Romero, Gabriela Oliveira da Rosa, S O Kepler, Paul A Bradley, Murat Uzundag, Keaton J Bell, J J Hermes, G R Lauffer
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 518:1448-1458
We present the photometric data from TESS for two known ZZ Ceti stars, PG 1541+651 and BPM 31594. Before TESS, both objects only had observations from short runs from ground-based facilities, with three and one period detected, respectively. The TESS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5deca51b425e0e0cd95ff047779d6cf3
https://doi.org/10.1093/mnras/stac3113
https://doi.org/10.1093/mnras/stac3113
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 480:1547-1562
We explore the evolution of hydrogen-rich and hydrogen-deficient white dwarf stars with masses between 1.012 and 1.307 Msun, and initial metallicity of Z=0.02. These sequences are the result of main sequence stars with masses between 8.8 and 11.8 Msu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57f82f9d1886fe5cd973dafe68578adb
https://doi.org/10.1093/mnras/sty1925
https://doi.org/10.1093/mnras/sty1925
Autor:
Alejandro H. Córsico, Souza Oliveira Kepler, G. R. Lauffer, Alejandra D. Romero, S. R. G. Joyce
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
We present a study of the dependence of the mass–radius relation for DA white dwarf stars on the hydrogen envelope mass and the impact on the value of log g, and thus the determination of the stellar mass. We employ a set of full evolutionary carbo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::315167f3b22a0361aa91ac937ef913cc
http://sedici.unlp.edu.ar/handle/10915/125354
http://sedici.unlp.edu.ar/handle/10915/125354
Autor:
L. Antunes Amaral, T. Klippel, D. Sanmartim, Souza Oliveira Kepler, Gustavo Ourique, G. R. Lauffer, Alejandra D. Romero, Detlev Koester, Luciano Fraga, Ingrid Pelisoli
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
We perform ground based photometric observations of 22 DA white dwarf stars, 10 already known ZZ Cetis and 12 candidates with atmospheric parameters inside the classical instability strip. We report on the discovery of four new variable DA white dwar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::122be536afa46bf125da5c587b36e302