The dense galactic environments of the Milky Way. Issue Volume 14:Issue S345(2019) (August 2018)

• Record Type: Journal Article
• Authors: Nguyen-Luong, Quang; Evans, Neal; Kim, Kee-Tae; Kang, Hyunwoo
• Editors: Elmegreen, Bruce G.; Tóth, L. Viktor; Güdel, Manuel
• Is Part Of: Proceedings of the International Astronomical Union. Volume 14:Issue S345(2019)
• Page Start: 34
• Page End: 38
• Publication Date: 2018-08
• Subjects: stars: formation, -- ISM: clouds, -- ISM: structure, -- ISM: evolution, -- Galaxy: evolution; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921319003028
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: Star formation takes place in the dense gas phase, and therefore a simple dense gas and star formation rate relation has been proposed. With the advent of multi-beam receivers, new observations show that the deviation from linear relations is possible. In addition, different dense gas tracers might also change significantly the measurement of dense gas mass and subsequently the relation between star formation rate and dense gas mass. We report the preliminary results the DEnse GAs in MAssive star-forming regions in the Milky Way (DEGAMA) survey that observed the dense gas toward a suite of well-characterized massive star-forming regions in the Milky Way. Using the resulting maps of HCO + 1–0, HCN 1–0, CS 2–1, we discuss the current understanding of the dense gas phase where star formation takes place.