Galaxy formation and evolution

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FIR-luminous [CII] emitters in the ALMA-SCUBA-2 COSMOS survey (AS2COSMOS): The nature of submillimeter galaxies in a 10 comoving Mpc-scale structure at z~4.6

(2020)

Authors:

Ikki Mitsuhashi, Yuichi Matsuda, Ian Smail, Natsuki Hayatsu, James Simpson, Mark Swinbank, Hideki Umahata, Ugne Dudzevičiūtė, Jack Birkin, Soh Ikarashi, Chian-Chou Chen, Ken-ichi Tadaki, Hidenobu Yajima, Yuichi Harikane, Hanae Inami, Scott Chapman, Bunyo Hatsukade, Daisuke Iono, Andrew Bunker, Yiping Ao, Tomoki Saito, Junko Ueda, Seiichi Sakamoto
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The properties of Polycyclic Aromatic Hydrocarbons in galaxies: constraints on PAH sizes, charge and radiation fields

(2020)

Authors:

Dimitra Rigopoulou, Marie Barale, David Clary, Xiao Shan, Almudena Alonso-Herrero, Ismael García-Bernete, Leslie Hunt, Boutheina Kerkeni, Miguel Pereira-Santaella, Patrick Roche
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The SAMI Galaxy Survey: a statistical approach to an optimal classification of stellar kinematics in galaxy surveys

(2020)

Authors:

Jesse van de Sande, Sam P Vaughan, Luca Cortese, Nicholas Scott, Joss Bland-Hawthorn, Scott M Croom, Claudia DP Lagos, Sarah Brough, Julia J Bryant, Julien Devriendt, Yohan Dubois, Francesco D'Eugenio, Caroline Foster, Amelia Fraser-McKelvie, Katherine E Harborne, Jon S Lawrence, Sree Oh, Matt S Owers, Adriano Poci, Rhea-Silvia Remus, Samuel N Richards, Felix Schulze, Sarah M Sweet, Mathew R Varidel, Charlotte Welker
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Spatially offset black holes in the Horizon-AGN simulation and comparison to observations

Monthly Notices of the Royal Astronomical Society Oxford University Press 500:4 (2020) staa3516

Authors:

Deaglan J Bartlett, Harry Desmond, Julien Devriendt, Pedro G Ferreira, Adrianne Slyz

Abstract:

We study the displacements between the centres of galaxies and their supermassive black holes (BHs) in the cosmological hydrodynamical simulation Horizon-AGN, and in a variety of observations from the literature. The BHs in Horizon-AGN feel a subgrid dynamical friction force, sourced by the surrounding gas, which prevents recoiling BHs being ejected from the galaxy. We find that (i) the fraction of spatially offset BHs increases with cosmic time, (ii) BHs live on prograde orbits in the plane of the galaxy with an orbital radius that decays with time but stalls near z = 0, and (iii) the magnitudes of offsets from the galaxy centres are substantially larger in the simulation than in observations. We attribute the stalling of the infall and excessive offset magnitudes to the fact that dynamical friction from stars and dark matter is not modelled in the simulation, and hence provide a way to improve the BH dynamics of future simulations.
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SDSS-IV MaNGA: Refining Strong Line Diagnostic Classifications Using Spatially Resolved Gas Dynamics

(2020)

Authors:

David R Law, Xihan Ji, Francesco Belfiore, Matthew A Bershady, Michele Cappellari, Kyle B Westfall, Renbin Yan, Dmitry Bizyaev, Joel R Brownstein, Niv Drory, Brett H Andrews
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