A GLOBAL STAR-FORMING EPISODE IN M31 2-4 GYR AGO

ABSTRACT We have identified a major global enhancement of star formation in the inner M31 disk that occurred between 2-4 Gyr ago, producing ∼60% of the stellar mass formed in the past 5 Gyr. The presence of this episode in the inner disk was discovered by modeling the optical resolved star color-mag...

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Veröffentlicht in:	The Astrophysical journal 2015-06, Vol.806 (1), p.1-9
Hauptverfasser:	Williams, Benjamin F., Dalcanton, Julianne J., Dolphin, Andrew E., Weisz, Daniel R., Lewis, Alexia R., Lang, Dustin, Bell, Eric F., Boyer, Martha, Fouesneau, Morgan, Gilbert, Karoline M., Monachesi, Antonela, Skillman, Evan
Format:	Artikel
Sprache:	eng
Schlagworte:	Andromeda Galaxy ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Bursting COLOR DIAGRAMS Evolutionary Extinction GALACTIC EVOLUTION GALAXIES galaxies: evolution galaxies: individual (M31) galaxies: interactions MASS STAR EVOLUTION Star formation Star formation rate STARS Stellar age Stellar mass
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