Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'500'096
Articles rated: 2609

19 April 2024

» arxiv » 2007.4624

Article overview

Formation of compact galaxies in the Extreme-Horizon simulation
Solène Chabanier ; Frédéric Bournaud ; Yohan Dubois ; Sandrine Codis ; Damien Chapon ; David Elbaz ; Christophe Pichon ; Olivier Bressand ; Julien Devriendt ; Raphael Gavazzi ; Katarina Kraljic ; Taysun Kimm ; Clotilde Laigle ; Jean-Baptiste Lekien ; Garreth Martin ; Nathalie Palanque-Delabrouille ; Sébastien Peirani ; Pierre-Franck Piserchia ; Adrianne Slyz ; Maxime Trebitsch ; Christophe Yèche ;
Date:	9 Jul 2020
Abstract:	We present the Extreme-Horizon (EH) cosmological simulation: EH models galaxy formation with stellar and AGN feedback and uses a very high resolution in the intergalactic and circumgalactic medium. The high resolution in low-density regions results in smaller-size massive galaxies at redshift $z=2$, in better agreement with observations compared to other simulations. This results from the improved modeling of cold gas flows accreting onto galaxies. Besides, the EH simulation forms a population of particularly compact galaxies with stellar masses of $10^{10-11}$,M$_sun$ that are reminiscent of observed ultracompact galaxies at $zsimeq2$. These objects form mainly through repeated major mergers of low-mass progenitors, independently of baryonic feedback mechanisms. This formation process can be missed in simulations using a too low resolution in low-density intergalactic regions.
Source:	arXiv, 2007.4624
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser claudebot

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap