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4 papers · 2 filters
Self Calibrated Galaxy Groups from the DESI DR1 Bright Galaxy Survey
I. Williams, J. Tinker, K. Wang +45
We present a galaxy group catalog built from Data Release 1 of the Dark Energy Spectroscopic Instrument (DESI) Bright Galaxy Survey, using the Self Calibrated Group Finder. The alg…
The Merian Survey: A Statistical Census of Bright Satellites of Sub-Milky Way-Mass Galaxies
Lucas S. Mandacarú Guerra, Jiaxuan Li, Yue Pan +9
Satellite populations provide sensitive tests of the galaxy-halo connection, but studies have largely focused on Milky Way (MW)-mass host galaxies or a small number of nearby dwarf…
The Connection between Halo Assembly History and the Stellar Distribution I: The Central Stellar Mass - Richness Plane
Shuo Xu, Song Huang, Alexie Leauthaud +4
Recent observations suggest intrinsic links between the stellar components of massive halos and their assembly histories. Using massive halos with $\log[M_{\rm halo}/M_\odot] \geq…
Improved constraints on the Milky Way potential using the M68 stream and DESI spectroscopic data
Carles G. Palau, Wenting Wang, Jiaxin Han +41
We present a selection of stars belonging to the stellar stream of the M68 (NGC 4590) globular cluster, also known as Fjörm. This star selection is an improvement on previous ones…