2002.07310Feb 18, 2020Published in IAU Symposium No. 344 "Dwarf Galaxies: From the Deep Universe to the Present" proceedings, 2019, eds. K. B. W. McQuinn & S. Stierwalt (4 pages, 2 figures)

Neutral Hydrogen in Nearby Dwarf Galaxies

B. S. Koribalski

Astrophysics of Galaxies Cosmology and Nongalactic Astrophysics Instrumentation and Methods for Astrophysics

arXiv PDF

Abstract

Here I briefly highlight our studies of the gas content, kinematics and star formation in nearby dwarf galaxies (D < 10 Mpc) based on the `Local Volume HI Survey' (LVHIS, Koribalski et al. 2018), which was conducted with the Australia Telescope Compact Array (ATCA). The LVHIS sample consists of nearly 100 galaxies, including new discoveries, spanning a large diversity in size, shape, mass and degree of peculiarity. The hydrogen properties of dwarf galaxies in two nearby groups, Sculptor and CenA / M83, are analysed and compared with many rather isolated dwarf galaxies. Around 10% of LVHIS galaxies are transitional or mixed-type dwarf galaxies (dIrr/dSph), the formation of which is explored. - I also provide a brief update on WALLABY Early Science, where we focus on studying the HI properties of galaxies as a function of environment. WALLABY (Dec < +30 degr, z < 0.26) is conducted with the Australian SKA Pathfinder (ASKAP), a 6-km diameter array of 36 x 12-m dishes, each equipped with wide-field (30 sq degr) Chequerboard Phased Array Feeds.

Briefing

What this paper is actually doing

Sign in and connect a model key to generate a briefing for this paper.

Socratic margin

Ask the abstract

Questions are grounded in the title and abstract. If the PDF is required, arXivDesk will say so.

Sign in to ask questions about this paper.