کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1772229 | 1020934 | 2007 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An Observational Study of the Physical Properties of Star-forming Molecular Cores
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: An Observational Study of the Physical Properties of Star-forming Molecular Cores An Observational Study of the Physical Properties of Star-forming Molecular Cores](/preview/png/1772229.png)
چکیده انگلیسی
We used the 13.7 m millimeter-wave telescope of the Qinghai Station of Purple Mountain Observatory at Delingha to carry out simultaneous mapping observations in the 12CO(J = 1 â 0), 13CO(J = 1 â 0) and CO18 (J = 1 â 0) lines towards 11 isolated star-forming molecular cores selected from the sample of Spitzer's c2d program. For all three lines, these sources were all observed to the positions of half the peak intensity of the 13CO(J = 1 â 0) line. The volume density, local thermodynamic equilibrium mass MLTE and virial mass MVIR were derived for each of the molecular cores. The obtained ratio of MVIR to MLTE is 0.85 ± 0.40 for the 13CO(J = 1 â 0) cores and 0.77 ± 0.35 for the CO18 (J = 1 â 0) cores. The density profiles of the cloud cores were also calculated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chinese Astronomy and Astrophysics - Volume 31, Issue 4, OctoberâDecember 2007, Pages 372-386
Journal: Chinese Astronomy and Astrophysics - Volume 31, Issue 4, OctoberâDecember 2007, Pages 372-386
نویسندگان
Li Bo, Pei Chun-chuan, Ma Hong-jun,