Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Chantereau, P."'
Autor:
Costa, G., Dumont, T., Lançon, A., Palacios, A., Charbonnel, C., Prugniel, P., Ekstrom, S., Georgy, C., Branco, V., Coelho, P., Martins, L., Borisov, S., Voggel, K., Chantereau, W.
Publikováno v:
A&A 690, A22 (2024)
A common property of globular clusters (GC) is to host multiple populations characterized by peculiar chemical abundances. Recent photometric studies suggest that the He content could vary between the populations of a GC by up to $\Delta$He $\sim$ 0.
Externí odkaz:
http://arxiv.org/abs/2405.16505
Autor:
Lara Arnouk, Hélène Chantereau, Sophie Courbage, Patrick Tounian, Karine Clément, Christine Poitou, Béatrice Dubern
Publikováno v:
Orphanet Journal of Rare Diseases, Vol 19, Iss 1, Pp 1-8 (2024)
Abstract Background The determinants of early-onset obesity ( International Obesity Task Force [IOTF] 30) of different etiologies (hypothalamic obesity [HO], intellectual disability with obesity [IDO], common polygenic obesity [CO]) were prospectivel
Externí odkaz:
https://doaj.org/article/8921ec21cc4f4631b252d5ef89f999db
Autor:
Lançon, Ariane, Larsen, S., Voggel, K., Cuillandre, J. -C., Duc, P. -A., Chantereau, W., Jain, R., Sánchez-Janssen, R., Cantiello, M., Rejkuba, M., Marleau, F., Saifollahi, T., Conselice, C., Hunt, L., Ferguson, A. M. N., Lagadec, E., Côté, P.
Globular clusters play a role in many areas of astrophysics, ranging from stellar physics to cosmology. New ground-based optical surveys complemented by observations from space-based telescopes with unprecedented near-infrared capabilities will help
Externí odkaz:
http://arxiv.org/abs/2110.13783
Autor:
Martocchia, S., Lardo, C., Rejkuba, M., Kamann, S., Bastian, N., Larsen, S., Cabrera-Ziri, I., Chantereau, W., Dalessandro, E., Kacharov, N., Salaris, M.
We present ESO/VLT FORS2 low resolution spectroscopy of red giant branch stars in three massive, intermediate age ($\sim 1.7-2.3$ Gyr) star clusters in the Large Magellanic Cloud. We measure CH and CN index bands at 4300A, and 3883A, as well as [C/Fe
Externí odkaz:
http://arxiv.org/abs/2106.02054
Publikováno v:
A&A 650, A162 (2021)
Multiple populations in globular clusters are usually explained by the formation of stars out of material with a chemical composition that is polluted to different degrees by the ejecta of short-lived, massive stars of various type. Among other thing
Externí odkaz:
http://arxiv.org/abs/2104.13988
Autor:
Bastian, Nate, Lardo, Carmela, Usher, Christopher, Kamann, Sebastian, Larsen, Soeren S., Cabrera-Ziri, Ivan, Chantereau, William, Martocchia, Silvia, Salaris, Maurizio, Asa'd, Randa, Hilker, Michael
Recent work has shown that the properties of multiple populations within massive stellar clusters (i.e., in the extent of their abundance variations as well as the fraction of stars that show the anomalous chemistry) depend on the mass as well as the
Externí odkaz:
http://arxiv.org/abs/2003.03428
Autor:
Saracino, S., Martocchia, S., Bastian, N., Kozhurina-Platais, V., Chantereau, W., Salaris, M., Cabrera-Ziri, I., Dalessandro, E., Kacharov, N., Lardo, C., Larsen, S. S., Platais, I.
Recent studies have revealed that the Multiple Populations (MPs) phenomenon does not occur only in ancient and massive Galactic globular clusters (GCs), but it is also observed in external galaxies, where GCs sample a wide age range with respect to t
Externí odkaz:
http://arxiv.org/abs/2003.01780
Stars in globular clusters (GCs) lose a non negligible amount of mass during their post-main sequence evolution. This material is then expected to build up a substantial intra-cluster medium (ICM) within the GC. However, the observed gas content in G
Externí odkaz:
http://arxiv.org/abs/2002.02401
Publikováno v:
A&A 635, A52 (2020)
We investigate the role of binaries and chromospheric emission on HST photometry of globular clusters' stars. We quantify their respective effects on the position of stars in the chromosome map, especially among the first population. We computed atmo
Externí odkaz:
http://arxiv.org/abs/2001.07581
Autor:
Chantereau, William
Stars in globular clusters lose mass through slow stellar winds that are retained by the stellar cluster and contribute to build up a non negligible intracluster medium over time. However, all the observations so far found only a negligible amount of
Externí odkaz:
http://arxiv.org/abs/1909.07660