Speaker
Description
Young, massive stars form in molecular clouds and shape their surroundings through powerful feedback mechanisms: stellar winds, ionizing radiation, and supernova explosions. Some fraction of ionizing photons escapes into the wider galaxy, further influencing star formation and galactic evolution. Understanding the interplay between these stars and the interstellar medium is key to unravelling these processes.
In this work, we introduce TRINITY, a semi-analytic, one-dimensional stellar feedback model. Feedback processes interact with each other in a highly non-linear manner; with TRINITY, we can efficiently simulate their effects on natal clouds, offering insights into the relationship between star cluster properties and feedback-driven cloud dispersal. Additionally, we investigate the impact of escaped ionising radiation by combining broadband photometry of star clusters from the Legacy ExtraGalactic UV Survey (LEGUS) with HII regions observed by the Star Formation, Ionized Gas, and Nebular Abundances Legacy Survey (SIGNALS) in the nearby spiral galaxy NGC 628. We also explore potential correlations between the escape fraction of ionising photons and various emission lines.
