The Astrophysical Journal (Jan 2025)
The Effect of Radiation and Supernovae Feedback on LyC Escape in Local Star-forming Galaxies
- Cody A. Carr,
- Renyue Cen,
- Claudia Scarlata,
- Xinfeng Xu,
- Alaina Henry,
- Rui Marques-Chaves,
- Daniel Schaerer,
- Ricardo O. Amorín,
- M. S. Oey,
- Lena Komarova,
- Sophia Flury,
- Anne Jaskot,
- Alberto Saldana-Lopez,
- Zhiyuan Ji,
- Mason Huberty,
- Timothy Heckman,
- Göran Östlin,
- Omkar Bait,
- Matthew James Hayes,
- Trinh Thuan,
- Swara Ravindranath,
- Danielle A. Berg,
- Mauro Giavalisco,
- Michael Rutkowski,
- Sanchayeeta Borthakur,
- John Chisholm,
- Harry C. Ferguson,
- Leo Michel-Dansac,
- Anne Verhamme,
- Gábor Worseck
Affiliations
- Cody A. Carr
- ORCiD
- Center for Cosmology and Computational Astrophysics, Institute for Advanced Study in Physics, Zhejiang University , Hangzhou 310058, People’s Republic of China ; codycarr24@gmail.com, renyuecen@zju.edu.cn; Institute of Astronomy, School of Physics, Zhejiang University , Hangzhou 310058, People’s Republic of China
- Renyue Cen
- ORCiD
- Center for Cosmology and Computational Astrophysics, Institute for Advanced Study in Physics, Zhejiang University , Hangzhou 310058, People’s Republic of China ; codycarr24@gmail.com, renyuecen@zju.edu.cn; Institute of Astronomy, School of Physics, Zhejiang University , Hangzhou 310058, People’s Republic of China
- Claudia Scarlata
- ORCiD
- Minnesota Institute for Astrophysics, School of Physics and Astronomy, University of Minnesota , 316 Church Street SE, Minneapolis, MN 55455, USA
- Xinfeng Xu
- ORCiD
- Department of Physics and Astronomy, Northwestern University , 2145 Sheridan Road, Evanston, IL 60208, USA; Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA), Northwestern University , 1800 Sherman Avenue, Evanston, IL 60201, USA
- Alaina Henry
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA; Center for Astrophysical Sciences, Department of Physics & Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Rui Marques-Chaves
- ORCiD
- Observatoire de Genève, Université de Genève , 51 Ch. des Maillettes, 1290 Versoix, Switzerland
- Daniel Schaerer
- ORCiD
- Observatoire de Genève, Université de Genève , 51 Ch. des Maillettes, 1290 Versoix, Switzerland
- Ricardo O. Amorín
- ORCiD
- Instituto de Astrofísica de Andalucía (CSIC) , Apartado 3004, 18080 Granada, Spain
- M. S. Oey
- ORCiD
- Astronomy Department, University of Michigan , Ann Arbor, MI 48109, USA
- Lena Komarova
- ORCiD
- Astronomy Department, University of Michigan , Ann Arbor, MI 48109, USA
- Sophia Flury
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA; Institute for Astronomy, University of Edinburgh , Royal Observatory, Edinburgh, EH9 3HJ, UK
- Anne Jaskot
- ORCiD
- Department of Astronomy, Williams College , Williamstown, MA 01267, USA
- Alberto Saldana-Lopez
- ORCiD
- Department of Astronomy, Oskar Klein Centre, Stockholm University , 106 91 Stockholm, Sweden
- Zhiyuan Ji
- ORCiD
- Steward Observatory, University of Arizona , 933 N. Cherry Avenue, Tucson, AZ 85721, USA
- Mason Huberty
- ORCiD
- Minnesota Institute for Astrophysics, School of Physics and Astronomy, University of Minnesota , 316 Church Street SE, Minneapolis, MN 55455, USA
- Timothy Heckman
- ORCiD
- Center for Astrophysical Sciences, Department of Physics & Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Göran Östlin
- ORCiD
- Department of Astronomy, Oskar Klein Centre, Stockholm University , 106 91 Stockholm, Sweden
- Omkar Bait
- ORCiD
- Observatoire de Genève, Université de Genève , 51 Ch. des Maillettes, 1290 Versoix, Switzerland; SKA Organization , Jodrell Bank, Lower Whitington, Macclesfield, SK11 9FT, UK
- Matthew James Hayes
- ORCiD
- Department of Astronomy, Oskar Klein Centre, Stockholm University , 106 91 Stockholm, Sweden
- Trinh Thuan
- ORCiD
- Astronomy Department, University of Virginia , Charlottesville, VA 22904, USA
- Swara Ravindranath
- ORCiD
- Astrophysics Science Division, NASA Goddard Space Flight Center , 8800 Greenbelt Road, Greenbelt, MD 20771, USA; Center for Research and Exploration in Space Science and Technology II, Department of Physics, Catholic University of America , 620 Michigan Avenue N.E., Washington DC 20064, USA
- Danielle A. Berg
- ORCiD
- Department of Astronomy, The University of Texas at Austin , 2515 Speedway, Stop C1400, Austin, TX 78712, USA
- Mauro Giavalisco
- ORCiD
- Department of Astronomy, University of Massachusetts , Amherst, MA 01003, USA
- Michael Rutkowski
- ORCiD
- Department of Physics and Astronomy, Minnesota State University , Mankato, MN 56001, USA
- Sanchayeeta Borthakur
- ORCiD
- School of Earth & Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- John Chisholm
- ORCiD
- Department of Astronomy, The University of Texas at Austin , 2515 Speedway, Stop C1400, Austin, TX 78712-1205, USA
- Harry C. Ferguson
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD 21218, USA
- Leo Michel-Dansac
- Aix Marseille Univ, CNRS, CNES, LAM , Marseille, France
- Anne Verhamme
- ORCiD
- Observatoire de Genève, Université de Genève , 51 Ch. des Maillettes, 1290 Versoix, Switzerland
- Gábor Worseck
- ORCiD
- Institut für Physik und Astronomie, Universität Potsdam , Karl-Liebknecht-Str. 24/25, D-14476 Potsdam, Germany
- DOI
- https://doi.org/10.3847/1538-4357/adb72f
- Journal volume & issue
-
Vol. 982,
no. 2
p. 137
Abstract
Feedback is widely recognized as an essential condition for Lyman continuum (LyC) escape in star-forming galaxies. However, the mechanisms by which galactic outflows clear neutral gas and dust remain unclear. In this paper, we model the Mg ii 2796 Å, 2804 Å absorption and emission lines in 29 galaxies taken from the Low- z LyC Survey to investigate the impact of (radiation and mechanical) feedback on LyC escape. Using constraints on Mg ^+ and photoionization models, we map the outflows’ neutral hydrogen content and predict ${f}_{{\rm{esc}}}^{{\rm{LyC}}}$ with a multiphase wind model. We measure mass-, momentum, and energy loading factors for the neutral winds, which carry up to 10% of the momentum and 1% of the energy in star formation rate (SFR)-based deposition rates. We use spectral energy distribution template fitting to determine the relative ages of stellar populations, allowing us to identify radiation feedback dominant systems. We then examine feedback related properties (stellar age, loading factors, etc.) under conditions that optimize feedback efficiency, specifically high-SFR surface density and compactness. Our findings indicate that the strongest leakers are radiation feedback dominant, lack deep Mg ii absorption features, but have extended broad components in higher-ionization lines like [O iii ] 5007 Å, as observed by Amorín et al. In contrast, galaxies experiencing supernovae feedback typically exhibit weaker ${f}_{{\rm{esc}}}^{{\rm{LyC}}}$ and show evidence of outflows in both Mg ii and higher-ionization lines. We attribute these findings to enhanced LyC escape facilitated by turbulence and cloud fragmentation in intense radiation fields, prolonged in low-metallicity environments experiencing delayed supernova feedback.
Keywords
- Circumgalactic medium
- Neutral hydrogen clouds
- Ultraviolet astronomy
- Galactic winds
- Reionization
- Interstellar medium
