5 papers
Individual Star Sampling in Star Formation Simulations: A Semi-Deterministic Model
Yunwei Deng, Hui Li, Zhiqiang Yan +2
In modern simulations that include star formation, it is common to use a universal and invariant initial mass function (IMF) to represent star populations or sample individual star…
Limited imprint of high-mass IMF variations on sodium abundances in main-sequence galaxies
Ziyi Guo, Donatella Romano, Zhiqiang Yan +10
Growing evidence suggests that the stellar initial mass function (IMF) varies systematically across galaxies, deviating from the canonical Milky Way form. Such variations would mod…
The Variation of the Galaxy-Wide IMF for Low-Mass Stars: Modeling and Observational Insights
Zhiqiang Yan, Jiadong Li, Pavel Kroupa +3
The Stellar Initial Mass Function (IMF) characterizes the mass distribution of newly formed stars in various cosmic environments, serving as a fundamental assumption in astrophysic…
First detection of CO isotopologues in a high-redshift main-sequence galaxy: evidence of a top-heavy stellar initial mass function
Ziyi Guo, Zhi-Yu Zhang, Zhiqiang Yan +5
Recent observations and theories have presented a strong challenge to the universality of the stellar initial mass function (IMF) in extreme environments. A notable example has bee…
The first ground-based detection of the 752 GHz water line in local ultra-luminous infrared galaxies using APEX-SEPIA
Daysi Quinatoa, Chentao Yang, Edo Ibar +10
We report the first ground-based detection of the water line p-H2O (211-202) at 752.033 GHz in three z < 0.08 ultra-luminous infrared galaxies (ULIRGs): IRAS 06035-7102, IRAS 17207…