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Galactic Astronomy 銀河物理学特論 I Lecture 3-3: Stellar mass function of galaxies Seminar: Perez-Gonzalez et al. 2008, ApJ, 675, 234 Lecture: 2012/01/16.

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Presentation on theme: "Galactic Astronomy 銀河物理学特論 I Lecture 3-3: Stellar mass function of galaxies Seminar: Perez-Gonzalez et al. 2008, ApJ, 675, 234 Lecture: 2012/01/16."— Presentation transcript:

1 Galactic Astronomy 銀河物理学特論 I Lecture 3-3: Stellar mass function of galaxies Seminar: Perez-Gonzalez et al. 2008, ApJ, 675, 234 Lecture: 2012/01/16

2 Observed magnitude and stellar mass, current stellar mass limit of deep surveys:
Marchesini et al. 2009, ApJ, 701, 1765,

3 Evolution of Stellar Mass Function of Galaxies : Uncertainty due to stellar population synthesis model Kajisawa et al. 2009, ApJ, 702, 1393

4 Evolution of Stellar Mass Function of Galaxies :
Kajisawa et al. 2009, ApJ, 702, 1393 Marchesini et al. 2009, ApJ, 701, 1765

5 Evolution of stellar mass density as a function of z:
Kajisawa et al. 2009, ApJ, 702, 1393 Marchesini et al. 2009, ApJ, 701, 1765

6 Evolution of stellar mass density as a function of z and stellar mass
2019/6/4 Evolution of stellar mass density as a function of z and stellar mass Marchesini et al. 2009, ApJ, 701, 1765, Perez-Gonzalez et al. 2008, ApJ, 675, 234

7 Luminosity function compared with semi-analytic models
Bower 2008

8 Luminosity function compared with semi-analytic models
Based on simple Cold-Dark-Matter galaxy formation model, more massive galaxies expected than observed. Formation of massive galaxies needs to be stopped with feed-back from AGNs etc. Without AGN feedback With AGN feedback Without AGN feedback With AGN feedback Bower et al. 2006, MNRAS, 370, 645

9 Stellar mass function compared with semi-analytic models
Three semi-analytic models with AGN feedback etc. Bower et al. 2011, arXiv:

10 The relation between stellar mass and star formation rate:
Daddi et al. 2007, ApJ, 670, 156

11 The relation between stellar mass and star formation rate:
Comparison with semi-analytic models Z=0 observation (contour) vs. Three semi-analytic models with AGN feedback etc. Bower et al. 2011, arXiv:

12 2019/6/4 Evolution of stellar mass density as a function of z and stellar mass, compared with the estimated growth curve of SMBHs Perez-Gonzalez et al. 2008, ApJ, 675, 234 Marconi et al. 2004, MNRAS, 351, 169 Single Eddington ratio assumed, etc.


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