Direct signatures of the formation time of galaxies

Autor:	Donath, Yaniv, Lewandowski, Matthew, Senatore, Leonardo
Rok vydání:	2023
Předmět:	Astrophysics - Cosmology and Nongalactic Astrophysics Astrophysics - Astrophysics of Galaxies
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.109.123510
Popis:	We show that it is possible to directly measure the formation time of galaxies using large-scale structure. In particular, we show that the large-scale distribution of galaxies is sensitive to whether galaxies form over a narrow period of time before their observed times, or are formed over a time scale on the order of the age of the Universe. Along the way, we derive simple recursion relations for the perturbative terms of the most general bias expansion for the galaxy density, thus fully extending the famous dark-matter recursion relations to generic tracers. Comment: PRD version, extended discussion, 5+3 pages, 1 figure, ancillary file included
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2307.11409 Zobrazit plný text záznamu View this record from Arxiv