Binary stars on the galaxy SFH
2015 ◽
Vol 11
(S315)
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Keyword(s):
AbstractUsing the Yunnan-II evolutionary population synthesis models comprising binary stars, we find that the inclusion of binary stars can raise the derived stellar metallicity Z* and/or age t (degeneracy problem), raise the stellar mass M*, lower the gaseous metallicity Zgas and star formation rate (SFR) of galaxies. This means that a few stars form recently in galaxies, while more stars form during the entire evolution process when considering binary stars. If the degeneracy between t and Z* can be broken, its effect on the feedback process and star formation history can be determined.
1999 ◽
Vol 192
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pp. 121-128
Keyword(s):
2019 ◽
Vol 15
(S357)
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pp. 138-153
2009 ◽
Vol 5
(S262)
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pp. 257-260
Keyword(s):
1999 ◽
Vol 190
◽
pp. 8-14
Keyword(s):
2001 ◽
Vol 204
◽
pp. 415-415
Keyword(s):
2006 ◽
Vol 2
(14)
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pp. 248-248
Keyword(s):