Kinematic and chemical components in the solar neighbourhood
نویسندگان
چکیده
منابع مشابه
Machos in the Solar Neighbourhood
We rediscuss the question of what fraction of the population of MACHOs in the halo of the Milky Way might be in the form of halo dwarfs, because recent determinations indicate masses of the MACHOs, which are typical for such stars. For this purpose we have analyzed the Third Catalogue of Nearby Stars and identified the subdwarfs and a high velocity white dwarf in the solar neighbourhood. The lo...
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We analyse two recent computations of type II supernova nucleosynthesis by Woosley & Weaver (1995, hereafter WW95) and Thielemann, Nomoto, & Hashimoto (1996, hereafter TNH96), focusing on the ability to reproduce the observed [Mg/Fe]-ratios in various galaxy types. We show that the yields of oxygen and total metallicity are in good agreement. However, TNH96-models produce more magnesium in the ...
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Stellar X-ray surveys play an important role in understanding the star formation history in our Galaxy in the last billion years (the scale time of coronal activity evolution). In particular, the comparison of observed counts in a given sky direction with predictions by Galactic models can put constraints on the spatial distribution and stellar birthrate of stellar populations. We present the r...
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ژورنال
عنوان ژورنال: EPJ Web of Conferences
سال: 2012
ISSN: 2100-014X
DOI: 10.1051/epjconf/20121901010