کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1779681 | 1022018 | 2008 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The chemical evolution of the halo of the M33 galaxy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The chemical evolution of the halo of the M33 galaxy The chemical evolution of the halo of the M33 galaxy](/preview/png/1779681.png)
چکیده انگلیسی
The chemical evolution of the halo of the M33 (Triangle) galaxy is considered. We suppose a galactic stellar halo to be formed as separate fragments which then merge. Our results show that the M33 halo metallicity distribution function can be reproduced in the framework of such a merger scenario of the chemical evolution. The halo stellar population of M33 was likely formed from two fragments only. It was found that gas accretion plays a significant role during the evolution of fragments before their merger. The presence of gas accretion during the fragment evolution allows us to obtain a gas mass fraction which is sufficient for the disk formation after the merger of the fragments.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: New Astronomy - Volume 13, Issue 5, July 2008, Pages 340-347
Journal: New Astronomy - Volume 13, Issue 5, July 2008, Pages 340-347
نویسندگان
Tetyana V. Nykytyuk,