Spatially Resolved Water Emission from Gravitationally Lensed Dusty Star-forming Galaxies at z < 3
| Autor: | Axel Wei ß, Christopher C. Hayward, Manuel Aravena, Sreevani Jarugula, Paul van der Werf, Matthieu Béthermin, Chenxing Dong, Yordanka Apostolovski, A. C. Mangian, Cassie Reuter, Kedar A. Phadke, Joaquin Vieira, Desika Narayanan, Yashar D. Hezaveh, Chian-Chou Chen, Carlos De Breuck, D. J. M. Cunningham, Thomas R. Greve, Justin Spilker, Katrina C. Litke |
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| Přispěvatelé: | Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Active galactic nucleus
010504 meteorology & atmospheric sciences Star (game theory) FOS: Physical sciences galaxies: starburst Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics 01 natural sciences Luminosity high-redshift [Galaxies] galaxies: high-redshift ISM [Galaxies] 0103 physical sciences Emission spectrum 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics molecules [ISM] 0105 earth and related environmental sciences Physics Star formation Astronomy and Astrophysics Effective temperature Astrophysics - Astrophysics of Galaxies Galaxy ISM: molecules starburst [Galaxies] 13. Climate action Space and Planetary Science [SDU]Sciences of the Universe [physics] Astrophysics of Galaxies (astro-ph.GA) Spectral energy distribution galaxies: ISM |
| Zdroj: | Astrophysical Journal (0004-637X), 880(2), 92 The Astrophysical Journal The Astrophysical Journal, 2019, 880, ⟨10.3847/1538-4357/ab290d⟩ Jarugula, S, Vieira, J D, Spilker, J S, Apostolovski, Y, Aravena, M, Bethermin, M, de Breuck, C, Chen, C-C, Cunningham, D J M, Dong, C, Greve, T, Hayward, C C, Hezaveh, Y, Litke, K C, Mangian, A C, Narayanan, D, Phadke, K, Reuter, C A, Van der Werf, P & Weiss, A 2019, ' Spatially Resolved Water Emission from Gravitationally Lensed Dusty Star-forming Galaxies at z ∼ 3 ', Astrophysical Journal Supplement Series, vol. 880, no. 2, 92 . https://doi.org/10.3847/1538-4357/ab290d |
| ISSN: | 0004-637X 1538-4357 |
| DOI: | 10.3847/1538-4357/ab290d⟩ |
| Popis: | International audience; Water (H2O), one of the most ubiquitous molecules in the universe, has bright millimeter-wave emission lines that are easily observed at high redshift with the current generation of instruments. The low-excitation transition of H2O, p - {{{H}}}2{{O}}({2}0,2}-{1}1,1}) (ν rest = 987.927 GHz), is known to trace the far-infrared (FIR) radiation field independent of the presence of active galactic nuclei (AGNs) over many orders of magnitude in FIR luminosity ({L}FIR}). This indicates that this transition arises mainly due to star formation. In this paper, we present spatially (∼0.″5 corresponding to ∼1 kiloparsec) and spectrally resolved (∼100 kms-1) observations of p - {{{H}}}2{{O}}({2}0,2}-{1}1,1}) in a sample of four strong gravitationally lensed high-redshift galaxies with the Atacama Large Millimeter/submillimeter Array. In addition to increasing the sample of luminous (>1012 L ⊙) galaxies observed with H2O, this paper examines the {L}{{{H}}2{{O}}}/{L}FIR} relation on resolved scales for the first time at high redshift. We find that {L}{{{H}}2{{O}}} is correlated with {L}FIR} on both global and resolved kiloparsec scales within the galaxy in starbursts and AGN with average {L}{{{H}}2{{O}}}/{L}FIR} = {2.76}-1.21+2.15 × {10}-5. We find that the scatter in the observed {L}{{{H}}2{{O}}}/{L}FIR} relation does not obviously correlate with the effective temperature of the dust spectral energy distribution or the molecular gas surface density. This is a first step in developing p - {{{H}}}2{{O}}({2}0,2}-{1}1,1}) as a resolved star formation rate calibrator. |
| Databáze: | OpenAIRE |
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