COMPLETE ELEMENT ABUNDANCES OF NINE STARS IN THEr-PROCESS GALAXY RETICULUM II

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Intermediate Element Abundances in Galaxy Clusters

We present the average abundances of the intermediate elements obtained by performing a stacked analysis of all the galaxy clusters in the archive of the X-ray telescope ASCA. We determine the abundances of Fe, Si, S, and Ni as a function of cluster temperature (mass) from 1 – 10 keV, and place strong upper limits on the abundances of Ca and Ar. In general, Si and Ni are overabundant with respe...

متن کامل

Neutron-Capture Element Abundances in Halo Stars

Abundance comparisons of neutron-capture elements – those formed in slow (sprocess) and rapid (r-process) neutron-capture nucleosynthesis – are providing important new information about the nature of the earliest Galactic nucleosynthesis and the first stellar generations (see recent reviews by Truran et al. 2002, Sneden & Cowan 2003 and Cowan & Thielemann 2004). Most previous studies have been ...

متن کامل

Ii) Abundances and Element Production

1 In this paper we concentrate more on other elemental abundances (such as O, Ne, S, Ar) and their implications for the evolution of the progenitor stars. We use a much larger sample of 183 objects, of which 65 are our own observations, where the abundances have been re-derived in a homogeneous way. For 156 of them, the quality of data is considered to be satisfactory for further analysis. We c...

متن کامل

Modelling Element Abundances in Semi-analytic Models of Galaxy Formation

We update the treatment of chemical evolution in the Munich semi-analytic model, LGalaxies. Our new implementation includes delayed enrichment from stellar winds, supernovæ type II (SNe-II) and supernovæ type Ia (SNe-Ia), as well as metallicitydependent yields and a reformulation of the associated supernova feedback. Two different sets of SN-II yields and three different SN-Ia delay-time distri...

متن کامل

Heavy element abundances in giant stars of the globular clusters

Based on observations made with the Magellan Clay Telescope at Las Campanas Observatory.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: The Astrophysical Journal

سال: 2016

ISSN: 1538-4357

DOI: 10.3847/0004-637x/830/2/93