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The z = 7.54 Quasar ULAS J1342+0928 Is Hosted by a Galaxy Merger

  • Authors: Eduardo Bañados, Mladen Novak, Marcel Neeleman, Fabian Walter, Roberto Decarli, Bram P. Venemans, Chiara Mazzucchelli, Chris Carilli, Feige Wang, Xiaohui Fan, Emanuele P. Farina, and Hans-Walter Rix

2019 The Astrophysical Journal Letters 881 L23.

  • Provider: AAS Journals

Caption: Figure 2.

ALMA dust continuum (left) and [C II] (right) maps of J1342+0928. The 0.″28 × 0.″20 (1.41 kpc × 0.99 kpc) beam size is shown at the bottom left of each panel while the cross indicates the peak of the dust continuum emission, which is consistent with the near-infrared position of the quasar. The solid (dashed) lines represent the +(−)2, 4, 8×σ contours with σ = 7.7 μJy beam−1 for the continuum flux density at 231 GHz (left panel) and σ = 35.0 μJy beam−1 for the [C II] flux density (right panel). The black dotted circles mark the 1.″3 (6.5 kpc) radius aperture used to measure the total flux densities.

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