The dense galactic environments of the Milky Way

Quang Nguyen-Luong, Neal Evans, Kee Tae Kim, Hyunwoo Kang, Bruce G. Elmegreen, L. Viktor Tóth, Manuel Güdel

Research output: Contribution to journalArticle


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.

Original languageEnglish
Pages (from-to)34-38
Number of pages5
JournalProceedings of the International Astronomical Union
Publication statusAccepted/In press - Jan 1 2019



  • Galaxy: Evolution
  • ISM: Clouds
  • ISM: Evolution
  • ISM: Structure
  • stars: Formation

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Astronomy and Astrophysics
  • Nutrition and Dietetics
  • Public Health, Environmental and Occupational Health
  • Space and Planetary Science

Cite this

Nguyen-Luong, Q., Evans, N., Kim, K. T., Kang, H., Elmegreen, B. G., Tóth, L. V., & Güdel, M. (Accepted/In press). The dense galactic environments of the Milky Way. Proceedings of the International Astronomical Union, 34-38.