Kennicutt-Schmidt Law in the Central Region of NGC 4321 as Seen by ALMA

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題名:	Kennicutt-Schmidt Law in the Central Region of NGC 4321 as Seen by ALMA
作者:	黃崇源;Azeez, Jazeel H.;Hwang, C.-Y.;Abidin, Zamri Z.;Ibrahim, Zainol A.
貢獻者:	理學院天文研究所
關鍵詞:	639/33/34/863;639/33/34/865;Gases;Humanities and Social Sciences;multidisciplinary;Science;Star & galaxy formation;Stars & galaxies;Velocity
日期:	2016-06-01
上傳時間:	2026-04-21 14:53:06 (UTC+8)
出版者:	Nature Publishing Group;London: Springer Science and Business Media LLC
摘要:	摘要： AbstractWe present the Atacama Large Millimeter/Sub-millimeter Array (ALMA) cycle-0 science verification data of the CO(1–0) line emission in the central region of NGC 4321 (also known as M100) at the distance of 17.1 Mpc and VLA, L-band data of HI of the same galaxy. We have drawn the center area of M100 in the 12CO(J = 1–0) line with the resolution of (3.87″ × 2.53″) as viewed by ALMA, along with HI and Spitzer 8 and 3.6 μm data. The relationship between the surface density of molecular gas mass ∑H2 and that of star formation rate ∑SFR has been investigated, in addition to the relationship between the surface density of the neutral atomic hydrogen mass and that of ∑SFR (Kennicutt–Schmidt law) in this galaxy with a high spatial resolution. The results indicate that a significant correlation exists between the SFR surface density and the molecular gas mass density in the ~2 kpc region. The power-law index has been determined for three regions: center, upper and lower arms. The value of this index in the center region is 1.13, which follows the traditional (K-S) law and indicates that the molecular gas is affected by star formation. 其他題名： Sci Rep 出版者： London: Springer Science and Business Media LLC 出版日期： 2016-06-01 出處： Scientific Reports, 2016-06, Vol.6 (1), p.26896-, Article 26896 資源來源： ProQuest Open Access Content Collection 版權： The Author(s) 2016 版權： Copyright Nature Publishing Group Jun 2016 版權： Copyright © 2016, Macmillan Publishers Limited 2016 Macmillan Publishers Limited 識別號： ISSN: 2045-2322 識別號： EISSN: 2045-2322 識別號： DOI: 10.1038/srep26896 識別號： PMID: 27247251
顯示於類別:	[天文研究所] 期刊論文

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