A Fast Radio Burst in a Compact Galaxy Group at z ∼ 1 [PDF]
The Astrophysical Journal Letters, 2023 FRB 20220610A is a high-redshift fast radio burst (FRB) that has not been observed to repeat. Here, we present rest-frame UV and optical Hubble Space Telescope observations of the field of FRB 20220610A. The imaging reveals seven extended sources, one of
Alexa C. Gordon +16 more
doaj +2 more sources
The galaxy group NGC 507: Newly detected AGN remnant plasma transported by sloshing [PDF]
Astronomy & Astrophysics, 2022 Jets from active galactic nuclei (AGN) are known to recurrently enrich their surrounding medium with mildly-relativistic particles and magnetic fields.
M. Brienza +17 more
semanticscholar +1 more source
Three Lyman-α-emitting filaments converging to a massive galaxy group at z = 2.91: discussing the case for cold gas infall [PDF]
Astronomy & Astrophysics, 2020 We have discovered a 300 kpc-wide giant Lyman-α (Lyα) nebula centered on the massive galaxy group RO-1001 at z = 2.91 in the Cosmic Evolution Survey field.
E. Daddi +23 more
semanticscholar +1 more source
ALMA Lensing Cluster Survey: An ALMA Galaxy Signposting a MUSE Galaxy Group at z = 4.3 Behind “El Gordo” [PDF]
Astrophysical Journal, 2020 We report the discovery of a Multi Unit Spectroscopic Explorer (MUSE) galaxy group at z = 4.32 lensed by the massive galaxy cluster ACT-CL J0102-4915 (aka El Gordo) at z = 0.87, associated with a 1.2 mm source that is at a 2.07 ± 0.88 kpc projected ...
K. Caputi +27 more
semanticscholar +1 more source
Accretion of galaxy groups into galaxy clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT We study the role of group infall in the assembly and dynamics of galaxy clusters in ΛCDM. We select 10 clusters with virial mass M200 ∼ 1014 $\rm M_\odot$ from the cosmological hydrodynamical simulation Illustris and follow their galaxies with stellar mass M⋆ ≥ 1.5 × 108 $\rm M_\odot$.
Laura V. Sales +3 more
openaire +4 more sources
The 2MASS redshift survey galaxy group catalogue derived from a graph-theory based friends-of-friends algorithm [PDF]
, 2020 We present the galaxy group catalogue for the recently-completed 2MASS Redshift Survey (2MRS, Macri2019) which consists of 44572 redshifts, including 1041 new measurements for galaxies mostly located within the Zone of Avoidance.
T. Lambert +3 more
semanticscholar +1 more source
Formation of a Massive Lenticular Galaxy Under the Tidal Interaction with a Group of Dwarf Galaxies
The Astrophysical Journal Letters, 2023 Based on the atomic-hydrogen (H i ) observations using the Five-hundred-meter Aperture Spherical radio Telescope, we present a detailed study of the gas-rich massive S0 galaxy NGC 1023 in a nearby galaxy group.
Jin-Long Xu +8 more
doaj +1 more source
The Fundamental Relation between Halo Mass and Galaxy Group Properties [PDF]
Astrophysical Journal, 2019 We explore the interrelationships between the galaxy group halo mass and various observable group properties. We propose a simple scenario that describes the evolution of the central galaxies and their host dark matter halos.
Z. Man +6 more
semanticscholar +1 more source
WALLABY early science – I. The NGC 7162 galaxy group [PDF]
Monthly notices of the Royal Astronomical Society, 2018 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.
T. Reynolds +23 more
semanticscholar +1 more source
AGN feedback in galaxy group 3C 88: cavities, shock, and jet reorientation [PDF]
Monthly notices of the Royal Astronomical Society, 2018 We present results from the deep Chandra observation (105 ksec), together with new Giant Metrewave Radio Telescope and Very Large Array data of the AGN outburst in the radio-loud galaxy group 3C 88.
Wenhao Liu +9 more
semanticscholar +1 more source