Galaxy Clusters and Groups, Part 2
42 entries in the Galaxy Clusters and Groups, Part 2 compendium.
IDCS J1426.5+3508Most massive young galaxy cluster detected at early age.JADES-ID1Earliest protocluster with hot intracluster medium found.Leo ClusterA young, spiral-rich cluster with giant black hole.M60 GroupClosest-known isolated compact group of galaxies.M81 GroupOne of the nearest galaxy groups to the Local Group.M94 GroupA loose galaxy group near the Local Group in the Virgo Supercluster.MACS J0025.4-1222Colliding clusters reveal dark matter through separation of gas and mass.MACS J0717.5+3745First observed collision of four galaxy clusters.MACS J1149.5+2223A massive galaxy cluster known for strong gravitational lensing.MS 0735.6+7421A galaxy cluster hosting one of the most powerful AGN eruptions known.Musket Ball ClusterA slow, old merger showing dark and baryonic matter separation.NGC 1550 GroupA luminous fossil galaxy group with a cooling core.NGC 1947 GroupA small galaxy group near the Dorado Group.NGC 3631 GroupA small galaxy group in the Ursa Major Cloud.NGC 3783 GroupA loose group of 47 galaxies centered on active galaxy NGC 3783.NGC 4036 GroupA small galaxy group in Ursa Major, part of the Virgo Supercluster.NGC 4111 GroupSecond most massive subgroup of the Ursa Major Cluster.NGC 4151 GroupA group of nine galaxies in the Ursa Major Cloud.NGC 4325 GroupA dynamically young group with AGN-driven X-ray cavities and cool gas.NGC 4555 GroupA small group with a dark-matter-rich elliptical galaxy.NGC 4593 GroupA galaxy group centered on the Seyfert galaxy NGC 4593.NGC 4666 GroupA small group hosting a starburst galaxy with a superwind.NGC 4856 GroupA cluster of five galaxies in the Virgo II Cloud.NGC 4902 GroupA galaxy group similar in size to the Local Group.NGC 5084 GroupA galaxy group in the Virgo II Cloud.NGC 5679 GroupTriplet of galaxies in Virgo, imaged by Hubble in 2009.NGC 5866 GroupA small galaxy group in Draco, possibly part of a larger structure.NGC 7079 GroupA galaxy group connecting the Pavo–Indus and Virgo Superclusters.NGC 7331 GroupA visual grouping of galaxies, not a true cluster.Perseus ClusterOne of the most massive objects in the known universe.Phoenix ClusterThe most X-ray luminous and one of the most massive known galaxy clusters.PKS 1353−341A quasar hidden within a massive galaxy cluster.Radio haloDiffuse radio emission in cluster centers, often linked to mergers.Robert's QuartetA compact interacting galaxy group smaller than the Milky Way's disk.RX J1347.5−1145One of the most massive and X-ray-luminous galaxy clusters known.RX J1532.9+3021Massive X-ray bright cool cluster with a mini radio halo.SPT-CL J0546−5345First z>1 cluster found via Sunyaev–Zeldovich effect.SPT-CL J2106−5844Most massive distant object known as of 2011.SPT2349-56Brightest protocluster candidate from the South Pole Telescope survey.SSA22 ProtoclusterA protocluster at z=3.1 with a 200-million-light-year filamentary structure.Zwicky's TripletThree interacting galaxies bound by streams of intergalactic matter.Virgo II GroupsA southern extension of the Virgo Supercluster comprising over 100 galaxies.
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