274 citations
- Institut d'Astrophysique de ParisFR6 papers
- Centre National de la Recherche ScientifiqueFR2 papers
- Center for Astrophysics Harvard & SmithsonianUS1 paper
- Eagle MountUS1 paper
- European Southern ObservatoryCL1 paper
- Fiat Chrysler Automobiles (Germany)DE1 paper
- Galaxies, Etoiles, Physique et InstrumentationFR1 paper
- Janssen (Belgium)BE1 paper
- Janssen (France)FR1 paper
- KU LeuvenBE1 paper
- Observatoire de ParisFR1 paper
- Queen's University BelfastGB1 paper
6 papers
Fast Rotation vs. Metallicity
Ronaldo Levenhagen, Nelson Vani Leister, Juan Zorec +1
Fast rotation seems to be the major factor to trigger the Be phenomenon. Surface fast rotation can be favored by initial formation conditions such as metal abundance. Models of fas…
Zams Rotational Velocities of be Stars
Juan Zorec, Christophe Martayan, Yves Fremat +2
We show that Be stars belong to a high velocity tail of a single B-type star rotational velocity distribution in the main sequence (MS). We studied 127 galactic field Be stars and…
Achernar Can be a Differential Rotator
Juan Zorec, Armando Domiciano De Souza, Yves Fremat +1
We take advantage of interferometric measurements of Achernar to inquire on its internal rotational law. The reinterpretation of interferome-tric data and the use of fundamental pa…
On the Frequency of Field Galactic Be Stars
Juan Zorec, Yves Fremat
Since Be stars belong to the high velocity tail of a single B star velocity distribution, the appearance of the Be phenomenon must be independent of the stellar mass. In the presen…
Evolution of Galactic Field be Stars
Juan Zorec, Yves Fremat, Lydia Cidale
Galactic field Be stars were studied by taking into account the effects induced by the fast rotation on their fundamental parameters. Fractional ages (…
Effects of gravitational darkening on the determination of fundamental parameters in fast rotating B-type stars
Y. Fremat, J. Zorec, A. -M. Hubert +1
In this paper we develop a calculation code to account for the effects carried by fast rotation on the observed spectra of early-type stars. Stars are assumed to be in rigid rotati…