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Small Lensed ${z}\geq5.5$ Galaxies Selected as Potential Lyman Continuum Leakers

ORAL

Abstract

The study of high-redshift galaxies is a key aspect of constructing a complete picture of galaxy formation and evolution, and their properties can lend insight into the conditions of the early universe and the process of reionization (the ionization of neutral hydrogen in the intergalactic medium by light sources in the early universe). Galaxies magnified by gravitational lensing are especially important to analyze these high-redshift populations, with the advantage of appearing brighter with higher spatial resolution while remaining intrinsically faint. I will present size measurements of 78 high-redshift ($z\geq 5.5$) lensed galaxy candidates from the Reionization Lensing Cluster Survey (RELICS), imaged by the Hubble Space Telescope and the Spitzer Space Telescope. I compute sizes using the forward-modeling code Lenstruction and account for magnification using public lens models. I will discuss the resulting small size measurements and highlight compact and highly star-forming sources as possible Lyman continuum leaker candidates with high inferred [OIII]+H$\beta$ that could be major contributors to the process of reionization.

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Authors

  • Chloe Neufeld

    University of California, Davis

  • Marusa Bradac

    University of California, Davis

  • Victoria Strait

    University of California, Davis

  • Ina Flood

    Saleh Research Centre, University of Hawaii at Manoa, California State University, Long Beach, University of California Berkeley, University of Arizona, California State University, Long Beach Department of Physics and Astronomy, University of California Los Angeles Department of Physics and Astronomy, University of California, San Diego, University of California, Davis, Donostia International Physics Center, Yale University, Argonne National Laboratory, SLAC - Natl Accelerator Lab, Heidelberg University, Indiana University-Perdue University Indianapolis, Humboldt State University, Indiana University, Syracuse University, University of California Santa Cruz, STAR Teacher Program, Monta Vista High School, Saint Francis High School, Lawrenceville School, INAF, Ben-Gurion University, STScI, University of California, Los Angeles, Wuhan University, Harvey Mudd College, University of Maryland

  • Ina Flood

    Saleh Research Centre, University of Hawaii at Manoa, California State University, Long Beach, University of California Berkeley, University of Arizona, California State University, Long Beach Department of Physics and Astronomy, University of California Los Angeles Department of Physics and Astronomy, University of California, San Diego, University of California, Davis, Donostia International Physics Center, Yale University, Argonne National Laboratory, SLAC - Natl Accelerator Lab, Heidelberg University, Indiana University-Perdue University Indianapolis, Humboldt State University, Indiana University, Syracuse University, University of California Santa Cruz, STAR Teacher Program, Monta Vista High School, Saint Francis High School, Lawrenceville School, INAF, Ben-Gurion University, STScI, University of California, Los Angeles, Wuhan University, Harvey Mudd College, University of Maryland

  • Ina Flood

    Saleh Research Centre, University of Hawaii at Manoa, California State University, Long Beach, University of California Berkeley, University of Arizona, California State University, Long Beach Department of Physics and Astronomy, University of California Los Angeles Department of Physics and Astronomy, University of California, San Diego, University of California, Davis, Donostia International Physics Center, Yale University, Argonne National Laboratory, SLAC - Natl Accelerator Lab, Heidelberg University, Indiana University-Perdue University Indianapolis, Humboldt State University, Indiana University, Syracuse University, University of California Santa Cruz, STAR Teacher Program, Monta Vista High School, Saint Francis High School, Lawrenceville School, INAF, Ben-Gurion University, STScI, University of California, Los Angeles, Wuhan University, Harvey Mudd College, University of Maryland

  • Ina Flood

    Saleh Research Centre, University of Hawaii at Manoa, California State University, Long Beach, University of California Berkeley, University of Arizona, California State University, Long Beach Department of Physics and Astronomy, University of California Los Angeles Department of Physics and Astronomy, University of California, San Diego, University of California, Davis, Donostia International Physics Center, Yale University, Argonne National Laboratory, SLAC - Natl Accelerator Lab, Heidelberg University, Indiana University-Perdue University Indianapolis, Humboldt State University, Indiana University, Syracuse University, University of California Santa Cruz, STAR Teacher Program, Monta Vista High School, Saint Francis High School, Lawrenceville School, INAF, Ben-Gurion University, STScI, University of California, Los Angeles, Wuhan University, Harvey Mudd College, University of Maryland

  • Ina Flood

    Saleh Research Centre, University of Hawaii at Manoa, California State University, Long Beach, University of California Berkeley, University of Arizona, California State University, Long Beach Department of Physics and Astronomy, University of California Los Angeles Department of Physics and Astronomy, University of California, San Diego, University of California, Davis, Donostia International Physics Center, Yale University, Argonne National Laboratory, SLAC - Natl Accelerator Lab, Heidelberg University, Indiana University-Perdue University Indianapolis, Humboldt State University, Indiana University, Syracuse University, University of California Santa Cruz, STAR Teacher Program, Monta Vista High School, Saint Francis High School, Lawrenceville School, INAF, Ben-Gurion University, STScI, University of California, Los Angeles, Wuhan University, Harvey Mudd College, University of Maryland

  • Ina Flood

    Saleh Research Centre, University of Hawaii at Manoa, California State University, Long Beach, University of California Berkeley, University of Arizona, California State University, Long Beach Department of Physics and Astronomy, University of California Los Angeles Department of Physics and Astronomy, University of California, San Diego, University of California, Davis, Donostia International Physics Center, Yale University, Argonne National Laboratory, SLAC - Natl Accelerator Lab, Heidelberg University, Indiana University-Perdue University Indianapolis, Humboldt State University, Indiana University, Syracuse University, University of California Santa Cruz, STAR Teacher Program, Monta Vista High School, Saint Francis High School, Lawrenceville School, INAF, Ben-Gurion University, STScI, University of California, Los Angeles, Wuhan University, Harvey Mudd College, University of Maryland

  • Ina Flood

    Saleh Research Centre, University of Hawaii at Manoa, California State University, Long Beach, University of California Berkeley, University of Arizona, California State University, Long Beach Department of Physics and Astronomy, University of California Los Angeles Department of Physics and Astronomy, University of California, San Diego, University of California, Davis, Donostia International Physics Center, Yale University, Argonne National Laboratory, SLAC - Natl Accelerator Lab, Heidelberg University, Indiana University-Perdue University Indianapolis, Humboldt State University, Indiana University, Syracuse University, University of California Santa Cruz, STAR Teacher Program, Monta Vista High School, Saint Francis High School, Lawrenceville School, INAF, Ben-Gurion University, STScI, University of California, Los Angeles, Wuhan University, Harvey Mudd College, University of Maryland