A comparison of star formation history between NGC 300 and M33. Issue Volume 15:Issue S341(2019) (November 2019)

• Record Type: Journal Article
• Authors: Kang, Xiaoyu; Zhang, Fenghui; Chang, Ruixiang
• Editors: Boquien, Médéric; Lusso, Elisabeta; Gruppioni, Carlotta; Tissera, Patricia
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S341(2019)
• Page Start: 275
• Page End: 276
• Publication Date: 2019-11
• Subjects: galaxies: evolution, -- galaxies: spiral, -- galaxies: individual: NGC 300 and M33; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921319002163
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: NGC 300 is a near-optical twin of the Local Group galaxy M33, which are benchmarks for understanding late-type spiral galaxies. They are two bulgeless and low-mass spiral galaxies in different environments. In order to explore the common properties and differences between the two nearby low-mass systems, we first use the simple chemical evolution model to explore the star formation history (SFH) of NGC300 and M33, and then compare the feasible model predicted SFH of NGC 300 with that of M33. Through comparing the SFHs between them, it can be found that the mean stellar age of NGC 300 is older than that of M33, there is a recent lack of primordial gas infall onto the disk of NGC 300, recent star formation along the disk of NGC 300 is less active than that of M33, and the local environment may play a key role in the secular evolution of a galaxy.