The Red Giant Branch Bump as a Probe of Stellar Populations

Details The Red Giant Branch Bump as a Probe of Stellar Populations The Red Giant Branch Bump as a Probe of Stellar Populations

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21943926n&link_type=abstract

American Astronomical Society, AAS Meeting #219, #439.26

Astronomy and Astrophysics

Astronomy

Scientific paper

I show that the Galactic bulge red giant branch bump, never previously measured, is indicative of an old, helium-enhanced stellar population. The analysis is done by comparing to data: 72 Galactic globular clusters measured with the Hubble Space Telescope, and to the Yale Rotating Evolution Code. Additionally, a large age difference with the Galactic globular cluster system is ruled out.

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