Akademik Veri Yönetim Sistemi
6th International Eurasian Conference on Science, Engineering and Technology (EurasianSciEnTech 2025), Ankara, Türkiye, 25 - 27 Haziran 2025, ss.135, (Özet Bildiri)
Spiral galaxies are known for their high levels of star formation activity. However, the process by which
late-type galaxies evolve into early-type ones is not well understood. Lenticular galaxies are key to
investigating such transitions. Giant molecular clouds (GMCs) are the birthplaces and deathbeds of stars in
galaxies. High-angular-resolution observations are essential to probe the physical properties and kinematics
of GMCs, and to improve our understanding of star formation processes in galaxies. In this study, we
present high-resolution, high-sensitivity observations of carbon monoxide (CO) in the nearby lenticular
galaxy NGC 383. Data were obtained using the Atacama Large Millimetre Array, achieving an angular
resolution of 0.085 arcsec x 0.052 arcsec (approximately 22 parsecs) and a velocity resolution of 2 km/s.
This excellent resolution enables us to resolve the GMCs both spatially and spectrally. Here, we present the
initial results of our analysis, based on a modified GMC identification algorithm. This algorithm enables
us to determine various physical parameters, such as the boundaries and dimensions of GMC structures, as
well as star formation at the GMC scale. Our results suggest that the GMCs are gravitationally unbound
and likely to undergo gravitational collapse. We will also discuss results based on Larson relations (i.e.
relations between the size, velocity dispersion, and luminosity of GMCs) and their physical interpretation
for hundreds of GMCs identified across the disc of the galaxy.