Dark against Luminous Matter around Isolated Central Galaxies: A Comparative Study between Modern Surveys and IllustrisTNG

Based on independent shear measurements using the Dark Energy Camera Legacy Survey/DR8 imaging data, we measure the weak lensing signals around isolated central galaxies (ICGs) from Sloan Digital Sky Survey/DR7 at z ∼ 0.1. The projected stellar mass density profiles of satellite galaxies are further...

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Veröffentlicht in:	The Astrophysical journal 2023-04, Vol.947 (1), p.19
Hauptverfasser:	Alonso, Pedro, Wang, Wenting, Zhang, Jun, Li, Hekun, Shao, Shi, Guo, Qi, He, Yanqin, Hao, Cai-Na, Shi, Rui
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics Calibration Comparative studies Dark energy Dark matter Galactic halos Galaxies Galaxy distribution Galaxy formation Galaxy stellar halos Gravitational lensing shear Halos Hydrodynamical simulations Polls & surveys Radial distribution Satellite observation Satellites Sky surveys Sky surveys (astronomy) Stars & galaxies Stellar mass
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