Paper Image

Atomic gas fuels compact starburst in infrared-bright blue compact dwarf galaxies

Published on:

3 October 2023

Primary Category:

Astrophysics of Galaxies

Paper Authors:

Yogesh Chandola,

Di Li,

Chao-Wei Tsai,

Guodong Li,

Yingjie Peng,

Pei Zuo,

Travis McIntyre,

Yin-Zhe Ma,

Daniel Stern,

Roger Griffith,

Thomas Jarrett,

Peter Eisenhardt,

Chantal Balkowski

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Key Details

Infrared-bright blue compact dwarfs have high specific star formation rates, similar to high-z galaxies

Their high star formation efficiency and compact star-forming regions drive the starburst

Atomic gas fractions are similar to other dwarf galaxies at a given stellar mass

Gas depletion timescales are an order of magnitude shorter than in typical dwarfs

This suggests dense, compact super star clusters rapidly convert gas to stars

AI generated summary

Atomic gas fuels compact starburst in infrared-bright blue compact dwarf galaxies

This paper studies the atomic hydrogen (Hi) gas content and gas depletion timescales of infrared-bright blue compact dwarf galaxies. It finds that these galaxies have high specific star formation rates, similar to high redshift galaxies, fueled by their high star formation efficiency and compact, dense star-forming regions rather than high gas fractions. The summary highlights the sample selection, key results on gas content, and interprets the short gas depletion timescales as resulting from compact, dust-rich super star clusters.

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