Poster Presentation

Study of properties and demography of clumpy galaxies beyond z > 3 with HST & JWST public data

Author(s): Ryo Albert Sutanto, Itsna Khoirul Fitriana, Lucky Puspitarini

Presenter: Ryo Albert Sutanto (Bandung Institute of Technology)

Over the past two decades, large telescopes like the Hubble Space Telescope (HST) have been able to provide clear images of galaxies through resolved imaging, allowing astronomers to study the structure and morphology of galaxies with redshifts $z<3$. The success of capturing those images was followed by the James Webb Space Telescope (JWST), an outer space telescope with sensitivity far surpassing that of the HST. This makes it possible to conduct studies on galaxy structures at higher redshifts ($z>3$). One interesting feature in studying galaxy structure is the presence of clumps actively forming stars on a kiloparsec (kpc) scale. These clumps features are suspected to be more commonly found in galaxies with high redshifts, as in galaxies with low redshifts, star formation activity more often occurs in the spiral arms of the galaxy. Furthermore, studies on clumps in galaxies at high redshifts are currently very limited. By understanding the properties of galaxies with clumps, both at high and low redshifts, a more comprehensive understanding of galaxy evolution in the universe can be obtained.