Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.arcetri.astro.it/igm50/posters_all/segers.pdf Дата изменения: Wed Jun 17 11:44:50 2015 Дата индексирования: Sun Apr 10 02:35:53 2016 Кодировка: Поисковые слова: trees

Recycled stellar ejecta as fuel for star formation
Marijke Seger s, Rob Crain, Joop Schaye (Leiden Obser vator y)

0.5

Fraction contributed by recycling

0.4

35% 19%

SFR Stellar mass AGB stars SN Type Ia Massive stars

0.3

Cosmological SPH simulation: Evolution and Assembly of GaLaxies and their Environments (EAGLE) At z = 0, 35% of the cosmic SFR density and 19% of the cosmic stellar mass density is contributed by stellar ejecta.

0.2

0.1

0.0

0

1

2 z

3

4 5 6 7 8 910


Recycled stellar ejecta as fuel for star formation
Marijke Seger s, Rob Crain, Joop Schaye (Leiden Obser vator y)
1.0
Fraction contributed by recycling

0.8

central galaxies z=0

SFR

Stellar mass AGB stars SN Type Ia Massive stars

0.6

40% 20%

0.4

0.2

0.0 8 10

10

9

1010 10 Stellar mass [M ]

11

108

10

9

1010 10 Stellar mass [M ]

11

For Milky Way-like galaxies, 40% of the present-day SFR and 20% of the present-day stellar mass is contributed by stellar ejecta.