Star formation and mass assembly in high-redshift galaxies

Nuovo Cimento Della Societa Italiana Di Fisica B-Basic Topics in Physics Pub Date : 2009-05-05 DOI:10.1051/0004-6361/200811434

P. Santini, A. Fontana, A. Grazian, S. Salimbeni, F. Fiore, F. Fontanot, K. Boutsia, M. Castellano, S. Cristiani, C. Santis, S. Gallozzi, E. Giallongo, N. Menci, M. Nonino, D. Paris, L. Pentericci, E. Roma, Monteporzio, Italy., Universita di RomaLa Sapienza'', U. Massachusetts, Amherst, Ma, USA. Max-Planck-Institut fur Astronomie, Heidelberg, G. I. A. D. Trieste, Trieste, U. Vergata, I. Vergata

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引用次数: 273

Abstract

Aims. The goal of this work is to infer the star formation properties and the mass assembly process of high redshift (0.3 ≤ z 0.3, the star formation rate is correlated well with stellar mass, and this relationship seems to steepen with redshift if one relies on IR-based estimates of the SFR; b) the contribution to the global SFRD by massive galaxies increases with redshift up to � 2.5, more rapidly than for galaxies of lower mass, but appears to flatten at higher z; c) despite this increase, the most important contributors to the SFRD at any z are galaxies of about, or immediately lower than, the characteristic stellar mass;

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高红移星系中的恒星形成和质量聚集

目标本工作的目的是推断高红移(0.3≤z0.3)的恒星形成特性和质量组装过程，恒星形成速率与恒星质量具有良好的相关性，如果依赖基于红外的SFR估计，这种关系似乎随着红移而变陡;b)大质量星系对全球SFRD的贡献随着红移达到- 2.5而增加，比低质量星系更快，但在高z处趋于平缓;c)尽管有这种增加，但在任何z点上对SFRD最重要的贡献是大约或立即低于特征恒星质量的星系;

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Nuovo Cimento Della Societa Italiana Di Fisica B-Basic Topics in Physics

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