@article{ebbb83b42c2340b1b505e47979019a32,
title = "Kinematic Signatures of Impulsive Supernova Feedback in Dwarf Galaxies",
abstract = "Impulsive supernova feedback and nonstandard dark matter models, such as self-interacting dark matter (SIDM), are the two main contenders for the role of the dominant core formation mechanism at the dwarf galaxy scale. Here we show that the impulsive supernova cycles that follow episodes of bursty star formation leave distinct features in the distribution function of stars: groups of stars with similar ages and metallicities develop overdense shells in phase space. If cores are formed through supernova feedback, we predict the presence of such features in star-forming dwarf galaxies with cored host halos. Their systematic absence would favor alternative dark matter models, such as SIDM, as the dominant core formation mechanism.",
author = "Burger, \{Jan D.\} and Jes{\'u}s Zavala and Sales, \{Laura V.\} and Mark Vogelsberger and Federico Marinacci and Paul Torrey",
note = "Funding Information: J. B. and J. Z. acknowledge support by a Grant of Excellence from the Icelandic Center for Research (Rann{\'i}s; Grants No. 173929 and No. 206930). The simulations presented here were carried out on the Garpur supercomputer, a joint project between the University of Iceland and University of Reykjav{\'i}k with funding from Rann{\'i}s. L. V. S. is grateful for financial support from Grants No. NASA ATP 80NSSC20K0566, No. NSF AST 1817233, and No. NSF CAREER 1945310. P. T. acknowledges support from NSF Grants No. AST-1909933 and No. AST-2008490, and NASA ATP Grant No. 80NSSC20K0502. F. M. acknowledges support through the program “Rita Levi Montalcini” of the Italian MUR. Publisher Copyright: {\textcopyright} 2022 American Physical Society.",
year = "2022",
month = nov,
day = "4",
doi = "10.1103/PhysRevLett.129.191103",
language = "English",
volume = "129",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "19",
}