BVI Photometry and the Red Giant Branch Luminosity Function of M15
(2014) In Publications of the Astronomical Society of the Pacific 126(942).- Abstract
- We present new BVI photometry containing 40,000 stars of the Galactic globular cluster M15 (NGC 7078) covering a 25×25 arcminute area centered on the cluster with a magnitude range from the tip of the Red Giant Branch to three magnitudes below the main sequence turn-off. Using α -enhanced Dartmouth Stellar Evolution Program models, we find an age of 13.0 ± 1.0 Gyr and distance modulus of (m−M)V=15.4±0.1 through isochrone fitting. Unlike previous works, we find good agreement between the observed completeness-corrected stellar luminosity function and models.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/bae64199-a9ed-49f1-8e6b-43144e1c8e8e
- author
- Feuillet, Diane LU ; Paust, N. E. Q. and Chaboyer, B.
- publishing date
- 2014-08
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Publications of the Astronomical Society of the Pacific
- volume
- 126
- issue
- 942
- pages
- 9 pages
- publisher
- University of Chicago Press
- external identifiers
-
- scopus:84907062147
- ISSN
- 1538-3873
- DOI
- 10.1086/677845
- language
- English
- LU publication?
- no
- id
- bae64199-a9ed-49f1-8e6b-43144e1c8e8e
- date added to LUP
- 2019-11-27 10:53:58
- date last changed
- 2022-03-28 13:48:01
@article{bae64199-a9ed-49f1-8e6b-43144e1c8e8e, abstract = {{We present new BVI photometry containing 40,000 stars of the Galactic globular cluster M15 (NGC 7078) covering a 25×25 arcminute area centered on the cluster with a magnitude range from the tip of the Red Giant Branch to three magnitudes below the main sequence turn-off. Using α -enhanced Dartmouth Stellar Evolution Program models, we find an age of 13.0 ± 1.0 Gyr and distance modulus of (m−M)V=15.4±0.1 through isochrone fitting. Unlike previous works, we find good agreement between the observed completeness-corrected stellar luminosity function and models.}}, author = {{Feuillet, Diane and Paust, N. E. Q. and Chaboyer, B.}}, issn = {{1538-3873}}, language = {{eng}}, number = {{942}}, publisher = {{University of Chicago Press}}, series = {{Publications of the Astronomical Society of the Pacific}}, title = {{BVI Photometry and the Red Giant Branch Luminosity Function of M15}}, url = {{http://dx.doi.org/10.1086/677845}}, doi = {{10.1086/677845}}, volume = {{126}}, year = {{2014}}, }