Results 31 to 40 of about 1,171,364 (102)

Reduced Wolf-Rayet Line Luminosities at Low Metallicity

, 2005
New NTT/EMMI spectrophotometry of single WN2-5 stars in the Magellanic Clouds are presented, from which HeII 4686 line luminosities have been derived, and compared with observations of other Magellanic Cloud WR stars.
Barba, Bartzakos, Bouchet, Breysacher, Breysacher, Brown, Chandar, Chen, Conti, Conti, Crowther, Crowther, Crowther, Crowther, Crowther, Crowther, de Mello, Foellmi, Foellmi, Galama, Garnett, Gibson, Gräfener, Gräfener, Heap, Hilditch, Hillier, Hillier, Hillier, Howarth, Izotov, Izotov, Kingsburgh, Kingsburgh, Koenigsberger, L. J. Hadfield, Langer, Legrand, Li, Lundström, MacFadyen, Maeder, Massey, Massey, Massey, Massey, Massey, Meynet, Moffat, Morgan, Morris, P. A. Crowther, Pagel, Schaerer, Schaerer, Schaerer, Schmutz, Schmutz, Seaton, Shapley, Smith, Smith, Smith, Smith, Smith, Stanek, Terlevich, Torres-Dodgen, Udalski, Vacca, Van Marle, Vink, Vreeswijk, Walborn   +73 more
core   +1 more source

TOPoS: I. Survey design and analysis of the first sample

, 2013
The metal-weak tail of the metallicity distribution function (MDF) of the Galactic Halo stars contains crucial information on the formation mode of the first generation of stars. To determine this observationally, it is necessary to observe large numbers
Bonifacio, P., Caffau, E., Cayrel, R., Christlieb, N., Clark, P., Francois, P., Glover, S., Klessen, R., Koch, A., Ludwig, H. -G., Monaco, L., Plez, B., Sbordone, L., Spite, F., Spite, M., Steffen, M., Zaggia, S.   +16 more
core   +3 more sources

Hybrid stars

Pramana, 2004
3 pages LaTeX including 2 figures, macros included, Talk presented at the IX International Symposium on Particles, Strings and Cosmology (PASCOS'03), TIFR, Mumbai, India, January 3-8,2003.
openaire   +2 more sources

Variability of B and Be stars in the LMC/SMC: binaries and pulsations [PDF]

, 2008
To study the variability of the 523 B and Be stars observed in the Magellanic clouds with the VLT-FLAMES, we cross-matched the stars of our sample with the photometric database MACHO, which provides for each star an 8 years lightcurve.
Anne-marie Hubert, Christophe Martayan, Coralie Neiner, Jacco Th. Van Loon, Joana M. Oliveira, Juan Fabregat, Malek Mekkas, Michèle Floquet, Pascual Diago   +8 more
core   +4 more sources

Predicted Space Motions for Hypervelocity and Runaway Stars: Proper Motions and Radial Velocities for the GAIA Era

, 2014
We predict the distinctive three dimensional space motions of hypervelocity stars (HVSs) and runaway stars moving in a realistic Galactic potential. For nearby stars with distances less than 10~kpc, unbound stars are rare; proper motions alone rarely ...
Bromley, Benjamin C., Brown, Warren R., Geller, Margaret J., Kenyon, Scott J.   +3 more
core   +1 more source

Reconstructing the cosmic evolution of the chemical elements

, 2014
The chemical elements are created in nuclear fusion processes in the hot and dense cores of stars. The energy generated through nucleosynthesis allows stars to shine for billions of years.
Frebel, Anna
core   +1 more source

Starred [PDF]

Journal of Thrombosis and Haemostasis, 2015
F R, Rosendaal, P H, Reitsma
openaire   +2 more sources

The chemical composition of carbon stars: The R-type stars

, 2009
The aim of this work is to shed some light on the problem of the formation of carbon stars of R-type from a detailed study of their chemical composition. We use high-resolution and high signal-to-noise optical spectra of 23 R-type stars selected from the
Abia, Carlos, Cristallo, Sergio, Dominguez, Inmaculada, Plez, Bertrand, Zamora, Olga   +4 more
core   +1 more source

A Stellar Rotation Census of B Stars: from ZAMS to TAMS

, 2010
Two recent observing campaigns provide us with moderate dispersion spectra of more than 230 cluster and 370 field B stars. Combining them and the spectra of the B stars from our previous investigations ($\sim$430 cluster and $\sim$100 field B stars ...
Abt, Abt, Cranmer, Cranmer, D. R. Gies, Gies, Heger, Howarth, Huang, Huang, Huang, Lanz, Larson, Larson, M. V. McSwain, Maeder, Mason, McAlister, McSwain, McSwain, McSwain, Meynet, Pols, Porter, Rappaport, Schaller, Strom, Talon, Wenjin Huang, Wolff, Wolff, Wolff   +31 more
core   +1 more source

Cosmic abundances: The impact of stellar duplicity

, 2004
The mass-transfer scenario links chemical peculiarities with stellar duplicity for an increasing number of stellar classes (classical and dwarf barium stars, subgiant and giant CH stars, S stars without technetium, yellow symbiotic stars, WIRRING stars ...
Jorissen, A., Van Eck, S.
core   +1 more source