Multicolor CCD photometry of the open cluster NGC 752

Autor:	R. Janusz, S. Bartašiūtė, V. Deveikis, Richard P. Boyle, A. G. Davis Philip
Rok vydání:	2009
Předmět:	Physics Photometry (astronomy) Space and Planetary Science Astronomy Astronomy and Astrophysics Astrophysics Open cluster
Zdroj:	Proceedings of the International Astronomical Union. 5:361-364
ISSN:	1743-9221 1743-9213
DOI:	10.1017/s1743921309991293
Popis:	We obtained CCD observations of the open cluster NGC 752 with the 1.8m Vatican Advanced Technology Telescope (Mt. Graham, Arizona) with a 4K CCD camera and eight intermediate-band filters of the Stromvil (Strömgren + Vilnius) system. Four 12′ × 12′ fields were observed, covering the central part of the cluster. The good-quality multicolor data made it possible to obtain precise estimates of distance moduli, metallicity and foreground reddening for individual stars down to the limiting magnitude, V = 17.5, enabling photometric identification of faint cluster members. The new observations provide an extension of the lower main sequence to three magnitudes beyond the previous (photographic) limit. A relatively small number of photometric members identified at fainter magnitudes seems to be indicative of actual dissolution of the cluster from the low-mass end.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c411037a589a17ff41e624048ebbb335 https://doi.org/10.1017/s1743921309991293 Zobrazit plný text záznamu Plný text ve formátu PDF