The Anatomy of Stellar Nurseries

• Applicant: Sacha Hony, Ph.D.
• Subject Area: Astrophysics and Astronomy
• Term: from 2015 to 2019
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 285648061

• Final Report Year: 2019

Final Report Abstract

Within the DFG project we have made significant progress. A high level summary of the main outcomes would be: 1) We have demonstrated significant variations in the quantities behaviour of the star formation process (the transformation of ISM gas into new stars) as a function of location. These variations depend on the metallicity of the gas, the stellar density and the galaxy morphology. 2) We been able to obtain new prescriptions that describe best the systematic behaviour of star formation dependent on these parameters. 2) We have demonstrated that the IMF of stellar clusters varies significantly and 4) give a quantitative measure of the amplitude of the variation needed to understand a large ensemble of Milky Way stellar clusters.

Publications

• MNRAS 2016, Vol 460, 67, Simultaneously modelling far-infrared dust emission and its relation to CO emission in star-forming galaxies
  Shetty et al.
  (See online at https://doi.org/10.1093/mnras/stw930)
• MNRAS 2017, 469, 1521, The extended law of star formation: the combined role of gas and stars
  Dib, Hony & Blanc
  (See online at https://doi.org/10.1093/mnras/stx934)
• MNRAS 2017, Vol 464, 1738, Massive stars reveal variations of the stellar initial mass function in the Milky Way stellar clusters
  Dib, Schmeja & Hony
  (See online at https://doi.org/10.1093/mnras/stw2465)
• MNRAS 2017, Vol 468, 87, New ALMA constraints on the starforming interstellar medium at low metallicity: a 50 pc view of the blue compact dwarf galaxy SBS 0335-052
  Cormier et al.
  (See online at https://doi.org/10.1093/mnrasl/slx034)
• A&A 2019, Vol 626A, 23C, The Herschel Dwarf Galaxy Survey. II. Physical conditions, origin of [C II] emission, and porosity of the multiphase low-metallicity ISM
  Cormier, Abel, Hony et al.
  (See online at https://doi.org/10.1051/0004-6361/201834457)