Local Volume TiNy Titans: Gaseous Dwarf-Dwarf Interactions in the Local Universe
Sarah Pearson, Gurtina Besla, Mary E. Putman, Katharina A. Lutz,, Ximena Fernandez, Sabrina Stierwalt, David R. Patton, Jinhyub Kim, Nitya, Kallivayalil, Kelsey Johnson, Eon-Chang Sung

TL;DR
This study introduces the LV-TNT sample of 10 dwarf galaxy pairs within 30 Mpc, analyzing their neutral hydrogen to understand how dwarf-dwarf interactions influence gas distribution and retention in various environments.
Contribution
It provides a comparative analysis of neutral gas in dwarf pairs, highlighting the role of environment and massive hosts in gas retention and tidal processing.
Findings
Neutral gas is more extended in interacting pairs.
Environment influences HI tail formation.
Gas is retained unless near a massive galaxy.
Abstract
In this paper, we introduce the Local Volume TiNy Titans sample (LV-TNT), which is a part of a larger body of work on interacting dwarf galaxies: TNT (Stierwalt et al. 2015). This LV-TNT sample consists of 10 dwarf galaxy pairs in the Local Universe (< 30 Mpc from Milky Way), which span mass ratios of M_(*,1)/M_(*,2) < 20, projected separations < 100 kpc, and pair member masses of log(M_*/M_Sun) < 9.9. All 10 LV-TNT pairs have resolved synthesis maps of their neutral hydrogen, are located in a range of environments and captured at various interaction stages. This enables us to do a comparative study of the diffuse gas in dwarf-dwarf interactions and disentangle the gas lost due to interactions with halos of massive galaxies, from the gas lost due to mutual interaction between the dwarfs. We find that the neutral gas is extended in the interacting pairs when compared to non-paired…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
