The Astrophysical Journal Supplement Series (Jan 2022)
The Low-redshift Lyman Continuum Survey. I. New, Diverse Local Lyman Continuum Emitters
- 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
Affiliations
- Sophia R. Flury
- ORCiD
- Department of Astronomy, University of Massachusetts Amherst , Amherst, MA 01002, USA ; [email protected]
- Anne E. Jaskot
- ORCiD
- Department of Astronomy, Williams College , Williamstown, MA 01267, USA
- Harry C. Ferguson
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD, 21218, USA
- Gábor Worseck
- ORCiD
- Institut für Physik und Astronomie, Universität Potsdam , Karl-Liebknecht-Str. 24/25, D-14476 Potsdam, Germany
- Kirill Makan
- ORCiD
- Institut für Physik und Astronomie, Universität Potsdam , Karl-Liebknecht-Str. 24/25, D-14476 Potsdam, Germany
- John Chisholm
- ORCiD
- Department of Astronomy, University of Texas at Austin , Austin, TX 78712, USA
- Alberto Saldana-Lopez
- ORCiD
- Observatoire de Genève, Université de Genève , 51 Ch. des Mailletes, 1290 Versoix, Switzerland
- Daniel Schaerer
- ORCiD
- Observatoire de Genève, Université de Genève , 51 Ch. des Mailletes, 1290 Versoix, Switzerland
- Stephan McCandliss
- ORCiD
- Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Bingjie Wang
- ORCiD
- Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- N. M. Ford
- ORCiD
- Department of Astronomy, Williams College , Williamstown, MA 01267, USA
- Timothy Heckman
- ORCiD
- Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- Zhiyuan Ji
- ORCiD
- Department of Astronomy, University of Massachusetts Amherst , Amherst, MA 01002, USA ; [email protected]
- Mauro Giavalisco
- ORCiD
- Department of Astronomy, University of Massachusetts Amherst , Amherst, MA 01002, USA ; [email protected]
- Ricardo Amorin
- ORCiD
- Departamento de Física y Astronomía, Universidad de La Serena , Av. Juan Cisternas 1200 Norte, La Serena, Chile
- Hakim Atek
- Institut d’astrophysique de Paris, CNRS UMR7095, Sorbonne Université , 98bis Boulevard Arago, F-75014 Paris, France
- Jeremy Blaizot
- Univ Lyon , Univ Lyon1, Ens de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574, F-69230, Saint-Genis-Laval, France
- Sanchayeeta Borthakur
- ORCiD
- School of Earth & Space Exploration, Arizona State University , Tempe, AZ 85287, USA
- Cody Carr
- ORCiD
- Minnesota Institute for Astrophysics, School of Physics and Astronomy, University of Minnesota , 316 Church Street SE, Minneapolis, MN 55455, USA
- Marco Castellano
- ORCiD
- INAF , Osservatorio Astronomico di Roma, via Frascati 33, I-00078 Monteporzio Catone, Italy
- Stefano Cristiani
- ORCiD
- INAF Osservatorio Astronomico di Trieste , via G.B. Tiepolo 11, I-34143, Trieste, Italy
- Stephane De Barros
- ORCiD
- Observatoire de Genève, Université de Genève , 51 Ch. des Mailletes, 1290 Versoix, Switzerland
- Mark Dickinson
- ORCiD
- National Optical-Infrared Astronomy Research Laboratory , Tucson, AZ, USA
- Steven L. Finkelstein
- ORCiD
- Department of Astronomy, University of Texas at Austin , Austin, TX 78712, USA
- Brian Fleming
- ORCiD
- Laboratory for Atmospheric and Space Physics , Boulder, CO, USA
- Fabio Fontanot
- ORCiD
- INAF Osservatorio Astronomico di Trieste , via G.B. Tiepolo 11, I-34143, Trieste, Italy
- Thibault Garel
- Observatoire de Genève, Université de Genève , 51 Ch. des Mailletes, 1290 Versoix, Switzerland
- Andrea Grazian
- INAF-Osservatorio Astronomico di Padova , Vicolo dell’Osservatorio 5, I-35122, Padova, Italy
- Matthew Hayes
- ORCiD
- The Oskar Klein Centre, Department of Astronomy, Stockholm University , AlbaNova, SE-10691 Stockholm, Sweden
- Alaina Henry
- ORCiD
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD, 21218, USA
- Valentin Mauerhofer
- Observatoire de Genève, Université de Genève , 51 Ch. des Mailletes, 1290 Versoix, Switzerland
- Genoveva Micheva
- ORCiD
- Leibniz-Institute for Astrophysics Potsdam , An der Sternwarte 16, D-14482 Potsdam, Germany
- M. S. Oey
- ORCiD
- Department of Astronomy, University of Michigan , Ann Arbor, MI 48109, USA
- Goran Ostlin
- ORCiD
- The Oskar Klein Centre, Department of Astronomy, Stockholm University , AlbaNova, SE-10691 Stockholm, Sweden
- Casey Papovich
- ORCiD
- George P. and Cynthia Woods Mitchell Institute for Fundamental Physics and Astronomy, Department of Physics and Astronomy, Texas A&M University , College Station, TX, USA
- Laura Pentericci
- ORCiD
- INAF , Osservatorio Astronomico di Roma, via Frascati 33, I-00078 Monteporzio Catone, Italy
- Swara Ravindranath
- Space Telescope Science Institute , 3700 San Martin Drive, Baltimore, MD, 21218, USA
- Joakim Rosdahl
- Univ Lyon , Univ Lyon1, Ens de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574, F-69230, Saint-Genis-Laval, France
- Michael Rutkowski
- ORCiD
- Department of Physics and Astronomy, Minnesota State University , Mankato, MN 56001, USA
- Paola Santini
- ORCiD
- INAF , Osservatorio Astronomico di Roma, via Frascati 33, I-00078 Monteporzio Catone, Italy
- Claudia Scarlata
- ORCiD
- Minnesota Institute for Astrophysics, School of Physics and Astronomy, University of Minnesota , 316 Church Street SE, Minneapolis, MN 55455, USA
- Harry Teplitz
- ORCiD
- Infrared Processing and Analysis Center, California Institute of Technology , Pasadena, CA 91125, USA
- Trinh Thuan
- Astronomy Department, University of Virginia , Charlottesville, VA 22904, USA
- Maxime Trebitsch
- ORCiD
- Astronomy, Kapteyn Astronomical Institute , Landleven 12, 9747 AD Groningen, The Netherlands
- Eros Vanzella
- ORCiD
- INAF , Osservatorio Astronomico di Bologna, via Gobetti 93/3, I-40129 Bologna, Italy
- Anne Verhamme
- Observatoire de Genève, Université de Genève , 51 Ch. des Mailletes, 1290 Versoix, Switzerland; Univ Lyon , Univ Lyon1, Ens de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon UMR5574, F-69230, Saint-Genis-Laval, France
- Xinfeng Xu
- ORCiD
- Department of Physics and Astronomy, Johns Hopkins University , Baltimore, MD 21218, USA
- DOI
- https://doi.org/10.3847/1538-4365/ac5331
- Journal volume & issue
-
Vol. 260,
no. 1
p. 1
Abstract
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 the Hubble Space Telescope Cosmic Origins Spectrograph for a z = 0.2–0.4 sample of 66 galaxies. After careful processing of the far-UV 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.
Keywords
