On a New Parameter to Estimate the Helium Content in Old Stellar Systems
On a New Parameter to Estimate the Helium Content in Old Stellar Systems
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Author / Creator
TROISI, F , BONO, G , CALAMIDA, A , CAPUTO, F , CORSI, C. E , DALL'ORA, M , KUNDER, A , MONELLI, M , NONINO, M , PIERSIMONI, A. M , PULONE, L , ROMANIELLO, M , STETSON, P. B , WALKER, A. R , ZOCCALI, M , PIETRINFERNI, A , WEISS, A , FABRIZIO, M , FERRARO, I , DI CECCO, A , IANNICOLA, G and BUONANNO, R
Publisher
Chicago, IL: University of Chicago Press
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Language
English
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Publisher
Chicago, IL: University of Chicago Press
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Contents
We introduce a new parameter I"I34a"the difference in magnitude between the red giant branch (RGB) bump and the point on the main sequence (MS) at the same color as the bump (which we call the aoebenchmarka)a"to estimate the helium content in old stellar systems. The I"I34 parameter is a helium indicator, since an increase in helium makes, at fixed...
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Full title
On a New Parameter to Estimate the Helium Content in Old Stellar Systems
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Record Identifier
TN_cdi_proquest_miscellaneous_907184785
Permalink
https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_proquest_miscellaneous_907184785
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ISSN
0004-6280
DOI
10.1086/661534
