The Low-redshift Lyman Continuum Survey. I. New, Diverse Local Lyman Continuum Emitters
| Autor: | Sophia R. Flury, Anne E. Jaskot, Harry C. Ferguson, Gábor Worseck, Kirill Makan, John Chisholm, Alberto Saldana-Lopez, Daniel Schaerer, Stephan McCandliss, Bingjie Wang, N. M. Ford, Timothy Heckman, Zhiyuan Ji, Mauro Giavalisco, Ricardo Amorin, Hakim Atek, Jeremy Blaizot, Sanchayeeta Borthakur, Cody Carr, Marco Castellano, Stefano Cristiani, Stephane De Barros, Mark Dickinson, Steven L. Finkelstein, Brian Fleming, Fabio Fontanot, Thibault Garel, Andrea Grazian, Matthew Hayes, Alaina Henry, Valentin Mauerhofer, Genoveva Micheva, M. S. Oey, Goran Ostlin, Casey Papovich, Laura Pentericci, Swara Ravindranath, Joakim Rosdahl, Michael Rutkowski, Paola Santini, Claudia Scarlata, Harry Teplitz, Trinh Thuan, Maxime Trebitsch, Eros Vanzella, Anne Verhamme, Xinfeng Xu |
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| Přispěvatelé: | University of Massachusetts [Amherst] (UMass Amherst), University of Massachusetts System (UMASS), Williams College [Williamstown], Space Telescope Science Institute (STSci), University of Potsdam = Universität Potsdam, University of Texas at Austin [Austin], Observatoire Astronomique de l'Université de Genève (ObsGE), Université de Genève = University of Geneva (UNIGE), Johns Hopkins University (JHU), Universidad de La Serena (USERENA), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), INAF, Osservatorio Astronomico di Trieste, Italy, NSF’s National Optical-Infrared Astronomy Research Laboratory (NOIRLab), Astronomy |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Ultraviolet astronomy
Cosmology and Nongalactic Astrophysics (astro-ph.CO) Reionization (1383) [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] Galactic and extragalactic astronomy (563) Hubble Space Telescope (761) Supporting material: figure sets FOS: Physical sciences Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics - Astrophysics of Galaxies machine-readable tables Reionization [SDU]Sciences of the Universe [physics] Space and Planetary Science Astrophysics of Galaxies (astro-ph.GA) Hubble Space Telescope Ultraviolet astronomy (1736) Galactic and extragalactic astronomy Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | The Astrophysical Journal Supplement Series The Astrophysical Journal Supplement Series, 2022, 260 (1), pp.1. ⟨10.3847/1538-4365/ac5331⟩ The Astrophysical Journal Supplement Series, 260:1. IOP PUBLISHING LTD |
| ISSN: | 0067-0049 |
| DOI: | 10.3847/1538-4365/ac5331⟩ |
| Popis: | The origins of Lyman continuum (LyC) photons responsible for the reionization of the universe are as of yet unknown and highly contested. Detecting LyC photons from the epoch of reionization is not possible due to absorption by the intergalactic medium, which has prompted the development of several indirect diagnostics to infer the rate at which galaxies contribute LyC photons to reionize the universe by studying lower-redshift analogs. We present the Low-redshift Lyman Continuum Survey (LzLCS) comprising measurements made with HST/COS for a z=0.2-0.4 sample of 66 galaxies. After careful processing of the FUV spectra, we obtain a total of 35 Lyman continuum emitters (LCEs) detected with 97.725% confidence, nearly tripling the number of known local LCEs. We estimate escape fractions from the detected LyC flux and upper limits on the undetected LyC flux, finding a range of LyC escape fractions up to 50%. Of the 35 LzLCS LCEs, 12 have LyC escape fractions greater than 5%, more than doubling the number of known local LCEs with cosmologically relevant LyC escape. ApJS, accepted. 28 pages, 19 figures, 8 tables. Full machine readable tables will be made available by the publisher at the time of publication |
| Databáze: | OpenAIRE |
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