The Distribution of Young Stars and Metals in Simulated Cosmological Disk Galaxies

Autor:	Pilkington, K., Gibson, B. K., Jones, D. H.
Rok vydání:	2012
Předmět:	Astrophysics - Galaxy Astrophysics Astrophysics - Cosmology and Extragalactic Astrophysics
Druh dokumentu:	Working Paper
Popis:	We examine the distribution of young stars associated with the spiral arms of a simulated L* cosmological disk galaxy. We find age patterns orthogonal to the arms which are not inconsistent with the predictions of classical density wave theory, a view further supported by recent observations of face-on Grand Design spirals such as M51. The distribution of metals within a simulated ~0.1L* disk is presented, reinforcing the link between star formation, the age-metallicity relation, and the metallicity distribution function. Comment: To appear in "From the First Structures to the Universe Today"; Proceedings of 2nd Workshop on Numerical and Observational Astrophysics; Buenos Aires; 14-18 Nov 2011; ed. M.W. De Rossi. S.E. Pedrosa & L.J. Pellizza; AAA Workshop Series (Argentine Astronomical Society)
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1203.1996 Zobrazit plný text záznamu View this record from Arxiv