Galaxy formation and evolution

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A solar metallicity galaxy at $z >$ 7? Possible detection of the [N II] 122 $\mu$m and [O III] 52 $\mu$m lines

(2022)

Authors:

Meghana Killi, Darach Watson, Seiji Fujimoto, Hollis Akins, Kirsten Knudsen, Johan Richard, Yuichi Harikane, Dimitra Rigopoulou, Francesca Rizzo, Michele Ginolfi, Gergö Popping, Vasily Kokorev
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Translators of galaxy morphology indicators between observation and simulation

(2022)

Authors:

Jk Jang, Sukyoug K Yi, Yohan Dubois, Jinsu Rhee, Christophe Pichon, Taysun Kimm, Julien Devriendt, Marta Volonteri, Sugata Kaviraj, Sebastien Peirani, Sree Oh, Scott Croom
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PHANGS: constraining star formation time-scales using the spatial correlations of star clusters and giant molecular clouds

Monthly Notices of the Royal Astronomical Society 516:3 (2022) 4612-4626

Authors:

JA Turner, DA Dale, J Lilly, M Boquien, S Deger, JC Lee, BC Whitmore, GS Anand, SM Benincasa, F Bigiel, GA Blanc, M Chevance, E Emsellem, CM Faesi, SCO Glover, K Grasha, A Hughes, RS Klessen, K Kreckel, JM Diederik Kruijssen, AK Leroy, HA Pan, E Rosolowsky, A Schruba, TG Williams

Abstract:

In the hierarchical view of star formation, giant molecular clouds (GMCs) undergo fragmentation to form small-scale structures made up of stars and star clusters. Here we study the connection between young star clusters and cold gas across a range of extragalactic environments by combining the high resolution (1″) PHANGS-ALMA catalogue of GMCs with the star cluster catalogues from PHANGS-HST. The star clusters are spatially matched with the GMCs across a sample of 11 nearby star-forming galaxies with a range of galactic environments (centres, bars, spiral arms, etc.). We find that after 4 - 6 Myr the star clusters are no longer associated with any gas clouds. Additionally, we measure the autocorrelation of the star clusters and GMCs as well as their cross-correlation to quantify the fractal nature of hierarchical star formation. Young (≤10 Myr) star clusters are more strongly autocorrelated on kpc and smaller spatial scales than the >, 10 Myr stellar populations, indicating that the hierarchical structure dissolves over time.
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Torus and polar dust dependence on active galactic nucleus properties

Astronomy & Astrophysics EDP Sciences 667 (2022) a140

Authors:

I García-Bernete, O González-Martín, C Ramos Almeida, A Alonso-Herrero, M Martínez-Paredes, MJ Ward, PF Roche, JA Acosta-Pulido, E López-Rodríguez, D Rigopoulou, D Esparza-Arredondo
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A New Task: Deriving Semantic Class Targets for the Physical Sciences

ArXiv 2210.1476 (2022)

Authors:

Micah Bowles, Hongming Tang, Eleni Vardoulaki, Emma L Alexander, Yan Luo, Lawrence Rudnick, Mike Walmsley, Fiona Porter, Anna MM Scaife, Inigo Val Slijepcevic, Gary Segal
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