Scaling Properties of Galaxy Groups by Lorenzo Lovisari, Stefano Ettori, Massimo Gaspari, Paul A. Giles

Subjects: “…galaxy groups…”
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The Metal Content of the Hot Atmospheres of Galaxy Groups by Fabio Gastaldello, Aurora Simionescu, Francois Mernier, Veronica Biffi, Massimo Gaspari, Kosuke Sato, Kyoko Matsushita

“…Galaxy groups host the majority of matter and more than half of all the galaxies in the Universe. …”
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Constraints on the Optical Depth of Galaxy Groups and Clusters by Flender, Samuel, Nagai, Daisuke, McDonald, Michael A.

“…This signal probes the matter-velocity correlation function, scaled by the average optical depth (τ) of the galaxy groups and clusters in the sample, and is thus of fundamental importance for cosmology. …”
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Search for Dark Matter Annihilation in Galaxy Groups by Lisanti, Mariangela, Mishra-Sharma, Siddharth, Rodd, Nicholas Llewellyn, Safdi, Benjamin Ryan

“…We use 413 weeks of publicly available Fermi Pass 8 gamma-ray data combined with recently developed galaxy group catalogs to search for evidence of dark matter annihilation in extragalactic halos. …”
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Kinematic unrest of low mass galaxy groups by Devriendt, J, Gozaliasl, G, Finoguenov, A, Khosroshahi, HG, Laigle, C, Kirkpatrick, CC, Kiiveri, K, Dubois, Y, Ahoranta, J

“…In an effort to better understand the formation of galaxy groups, we examine the kinematics of a large sample of spectroscopically confirmed X-ray galaxy groups in the Cosmic Evolution Survey (COSMOS) with a high sampling of galaxy group members up to $z=1$. …”

The cosmological constant derived via galaxy groups and clusters by V. G. Gurzadyan, A. Stepanian

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Feedback from Active Galactic Nuclei in Galaxy Groups by Dominique Eckert, Massimo Gaspari, Fabio Gastaldello, Amandine M. C. Le Brun, Ewan O’Sullivan

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Somewhere in between: Tracing the Radio Emission from Galaxy Groups (or Why Does the Future of Observing Galaxy Groups with Radio Telescopes Look Promising?) by Błażej Nikiel-Wroczyński

Subjects: “…galaxy groups…”
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Revisiting the Cooling Flow Problem in Galaxies, Groups, and Clusters of Galaxies by McDonald, Michael, Gaspari, Massimo, McNamara, Brian, Tremblay, Grant

“…We present a study of 107 galaxies, groups, and clusters spanning ∼3 orders of magnitude in mass, ∼5 orders of magnitude in central galaxy star formation rate (SFR), ∼4 orders of magnitude in the classical cooling rate () of the intracluster medium (ICM), and ∼5 orders of magnitude in the central black hole accretion rate. …”
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REVISED MASS-TO-LIGHT RATIOS FOR NEARBY GALAXY GROUPS AND CLUSTERS by Shan, Yutong, McDonald, Michael A., Courtreau, Stephane

“…For the mass range covered by our sample, the assumption of a Chabrier initial mass function (IMF) yields an integrated M*/L[subscript i] [~ over bar] 1.7 ± 0.2 M [subscript ☉]/L[subscript i], [subscript ☉], a lower value than used in most similar studies, though consistent with the study of low-mass galaxy groups by Leauthaud et al. A light (diet) Salpeter IMF would imply a ~60% increase in M*/L[subscript i].…”
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WALLABY early science - II. The NGC 7232 galaxy group by Lee-Waddell, K, Koribalski, B, Westmeier, T, Elagali, A, For, B, Kleiner, D, Madrid, J, Popping, A, Reynolds, T, Rhee, J, Serra, P, Shao, L, Staveley-Smith, L, Wang, J, Whiting, M, Wong, O, Allison, J, Bhandari, S, Collier, J, Heald, G, Marvil, J, Ord, S

HST imaging of an old galaxy group at Z=1.55 by Bunker, A, Spinrad, H, McLure, R, Dey, A, Dunlop, J, Peacock, J, Stern, D, Thompson, R, Waddington, I, Windhorst, R

WALLABY early science – I. The NGC 7162 galaxy group by Reynolds, T, Westmeier, T, Staveley-Smith, L, Elagali, A, For, B, Kleiner, D, Koribalski, B, Lee-Waddell, K, Madrid, J, Popping, A, Rhee, J, Whiting, M, Wong, O, Davies, L, Driver, S, Robotham, A, Allison, J, Bekiaris, G, Collier, J, Heald, G, Meyer, M, Chippendale, A, Macleod, A, Voronkov, M

“…We present Widefield ASKAP L-band Legacy All-sky Blind Survey (WALLABY) early science results from the Australian Square Kilometre Array Pathfinder (ASKAP) observations of the NGC 7162 galaxy group. We use archival HIPASS and Australia Telescope Compact Array (ATCA) observations of this group to validate the new ASKAP data and the data reduction pipeline ASKAP SOFT. …”

The 2dF galaxy redshift survey: The clustering of galaxy groups by Padilla, N, Baugh, C, Eke, V, Norberg, P, Cole, S, Frenk, C, Croton, D, Baldry, I, Bland-Hawthorn, J, Bridges, T, Cannon, R, Colless, M, Collins, C, Couch, W, Dalton, G, De Propris, R, Driver, S, Efstathiou, G, Ellis, R, Glazebrook, K, Jackson, C, Lahav, O, Lewis, I, Lumsden, S, Maddox, S

“…We measure the clustering of galaxy groups in the 2dFGRS Percolation-Inferred Galaxy Group (2PIGG) catalogue. …”

Discovery of a giant HI tail in the galaxy group HCG 44 by Serra, P, Koribalski, B, Duc, P, Oosterloo, T, McDermid, R, Michel-Dansac, L, Emsellem, E, Cuillandre, J, Alatalo, K, Blitz, L, Bois, M, Bournaud, F, Bureau, M, Cappellari, M, Crocker, A, Davies, R, Davis, T, de Zeeuw, P, Khochfar, S, Krajnovic, D, Kuntschner, H, Lablanche, P, Morganti, R, Naab, T, Sarzi, M

The 2dF Galaxy Redshift Survey: the clustering of galaxy groups by Padilla, N, Baugh, C, Eke, V, Norberg, P, Cole, S, Frenk, C, Croton, D, Baldry, I, Bland-Hawthorn, J, Bridges, T, Cannon, R, Colless, M, Collins, C, Couch, W, Dalton, G, De Propris, R, Driver, S, Efstathiou, G, Ellis, R, Glazebrook, K, Jackson, C, Lahav, O, Lewis, I, Lumsden, S, Maddox, S

A Fast Radio Burst in a Compact Galaxy Group at z ∼ 1 by Alexa C. Gordon, Wen-fai Fong, Sunil Simha, Yuxin Dong, Charles D. Kilpatrick, Adam T. Deller, Stuart D. Ryder, Tarraneh Eftekhari, Marcin Glowacki, Lachlan Marnoch, August R. Muller, Anya E. Nugent, Antonella Palmese, J. Xavier Prochaska, Marc Rafelski, Ryan M. Shannon, Nicolas Tejos

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Cosmological constraints from the virial mass function of nearby galaxy groups and clusters by Hill, James Colin

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Galaxy Quenching with Mass Growth History of Galaxy Groups and Clusters: The Importance of Post-processing by So-Myoung Park, Kyungwon Chun, Jihye Shin, Hyunjin Jeong, Joon Hyeop Lee, Mina Pak, Rory Smith, Jae-Woo Kim

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Statistical Association between the Candidate Repeating FRB 20200320A and a Galaxy Group by Masoud Rafiei-Ravandi, Kendrick M. Smith, D. Michilli, Ziggy Pleunis, Mohit Bhardwaj, Matt Dobbs, Gwendolyn M. Eadie, Emmanuel Fonseca, B. M. Gaensler, Jane Kaczmarek, Victoria M. Kaspi, Calvin Leung, Dongzi Li, Kiyoshi W. Masui, Ayush Pandhi, Aaron B. Pearlman, Emily Petroff, Mubdi Rahman, Paul Scholz, David C. Stenning

“…We demonstrate that the correlation arises surprisingly because of a statistical association between FRB 20200320A (extragalactic DM ≈ 550 pc cm ^−3 ) and a galaxy group in the same dark matter halo at redshift z ≈ 0.32. …”
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