The Interstellar Medium in Dwarf Irregular Galaxies

Understand

Dwarf irregulars (dIrrs) are among the most common type of galaxy in the Universe.

• They typically have gas-rich, low surface-brightness, metal-poor, and relatively-thick disks.
• Here we summarize the current state of our knowledge of the interstellar medium (ISM), including atomic, molecular and ionized gas, along with their dust properties and metals.
• We also discuss star formation feedback, gas accretion, and mergers with other dwarfs that connect the ISM to the circumgalactic and intergalactic media.