We present new results of our ongoing chemical study of carbon stars in Local Group galaxies to test the critical dependence of $s$-process nucleosynthesis on the stellar metallicity. We collected optical spectra with the VLT/UVES instrument of two carbon stars found in the Carina Dwarf Spheroidal (dSph) galaxy, namely ALW-C6 and ALW-C7. We...
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April 1, 2008 (v1)PublicationUploaded on: December 4, 2022
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2008 (v1)Journal article
Astronomy and Astrophysics, 481, pp. 161-168, http://dx.doi.org./10.1051/0004-6361:20079114
Uploaded on: December 4, 2022 -
2009 (v1)Journal article
Astrophysical Journal, 694, pp. 971-977 (2009)
Uploaded on: December 3, 2022 -
2009 (v1)Journal article
Publications of the Astronomical Society of Australia, 26, pp. 351-353 (2009)
Uploaded on: December 3, 2022 -
April 2021 (v1)Journal article
Context. Rubidium is one of the few elements produced by the neutron capture s - and r -processes in almost equal proportions. Recently, a Rb deficiency ([Rb/Fe] < 0.0), amounting to a factor of about two with respect to the Sun, has been found in M dwarfs of near-solar metallicity. This stands in contrast to the close-to-solar [Sr, Zr/Fe]...
Uploaded on: December 3, 2022 -
October 5, 2005 (v1)Publication
We present the first results of our ongoing chemical study of carbon stars in the Local Group of galaxies. We used spectra obtained with UVES at the 8.2 m Kueyen-VLT telescope and a new grid of spherical model atmospheres for cool carbon-rich stars which include polyatomic opacities, to perform a full chemical analysis of one carbon star,...
Uploaded on: December 3, 2022 -
February 2006 (v1)Journal article
We present the first results of our ongoing chemical study of carbon stars in the Local Group of galaxies. We used spectra obtained with UVES at the 8.2 m Kueyen-VLT telescope and a new grid of spherical model atmospheres for cool carbon-rich stars which include polyatomic opacities, to perform a full chemical analysis of one carbon star, BMB-B...
Uploaded on: December 3, 2022 -
2011 (v1)Journal article
International audience
Uploaded on: December 4, 2022 -
2010 (v1)Journal article
Astrophysical Journal, 715, p. L94 (2010)
Uploaded on: December 3, 2022