CCD Photometry of M15

Bibcode
2010RMxAA..46....3R
Nigoche-Netro, A.; Herrera, G.; Sánchez, L. J.; Ruelas-Mayorga, A.
Bibliographical reference

Revista Mexicana de Astronomía y Astrofísica Vol. 46, pp. 3-21 (2010) (http://www.astroscu.unam.mx/~rmaa/)

Advertised on:
4
2010
Number of authors
4
IAC number of authors
1
Citations
4
Refereed citations
4
Description
We present CCD observations of the galactic globular cluster M15, in the B and V filters. The cluster was reasonably covered, except in its northern region where our observations present a gap. We obtained a Hertzsprung-Russell (HR) diagram for each region observed, and later we produced a combined HR diagram containing more than 3000 stars. We generate a clean Colour Magnitude Diagram (CMD) and a Super Fiducial Line (SFL). Application of several methods and isochrone fitting leads us to obtain values for the metallicity [Fe/H]_{M15} ˜ -2.16±0.10, the reddening E(B-V)_{M15} ˜ 0.11±0.03, and a distance modulus of [(m-M)_0]_{M15} ˜ 15.03.
Type
Refereed
Techniques

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