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  1. OA@INAF
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  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28582
Title: The z = 7.54 Quasar ULAS J1342+0928 Is Hosted by a Galaxy Merger
Authors: Bañados, Eduardo
Novak, Mladen
Neeleman, Marcel
Walter, Fabian
DECARLI, ROBERTO 
Venemans, Bram P.
Mazzucchelli, Chiara
Carilli, Chris
Wang, Feige
Fan, Xiaohui
Farina, Emanuele P.
Rix, Hans-Walter
Issue Date: 2019
Journal: THE ASTROPHYSICAL JOURNAL 
Number: 881
Issue: 1
First Page: L23
Abstract: We present ALMA 0.″28 × 0.″20 (1.4 kpc × 1.0 kpc) resolution observations of the [C II] 158 μm line and underlying dust continuum in the host galaxy of the most distant quasar currently known, ULAS J1342+0928 at z = 7.5413. Both the [C II] and continuum are detected and spatially resolved. The [C II] line is ∼1.5 times more extended than the continuum emission, showing an elongated and complex structure of approximately 3.2 kpc × 6.4 kpc. Two separate peaks are clearly seen (≳6σ each) in three 100 km s<SUP>-1</SUP> width [C II] channel maps. The velocity field of the [C II] gas does not show evidence of a coherent rotation field but rather chaotic motion reminiscent of an ongoing merger.
URI: http://hdl.handle.net/20.500.12386/28582
URL: https://iopscience.iop.org/article/10.3847/2041-8213/ab3659
ISSN: 0004-637X
DOI: 10.3847/2041-8213/ab3659
Bibcode ADS: 2019ApJ...881L..23B
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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