Extended Stromgren photoelectric photometry in NGC 752

被引：13

作者：

Anthony-Twarog, BJ ^{[1
]}

Twarog, BA ^{[1
]}

机构：

[1] Univ Kansas, Dept Phys & Astron, Lawrence, KS 66045 USA

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 2006年 / 118卷 / 841期

关键词：

D O I：

10.1086/500281

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Photoelectric photometry on the extended Stromgren system (uvbyCa) is presented for 7 giants and 21 main-sequence stars in the old open cluster NGC 752. Analysis of the hk data for the turnoff stars yields a new determination of the cluster mean metallicity. From 10 single-star members,, [ Fe/H] = -0.06 +/- 0.03 where the error quoted is the standard error of the mean and the Hyades abundance is set at. [Fe/H] = + 0.12 This result is unchanged if all 20 stars within the limits of the hk metallicity calibration are included. The derived [Fe/H] is in excellent agreement with past estimates, using properly zeroed data, transformed moderate-dispersion spectroscopy, and recent high-dispersion spectroscopy.

引用

页码：358 / 363

页数：6

共 40 条

[1] vbyCaHβ CCD photometry of clusters.: VI.: The metal-deficient open cluster NGC 2420 [J].

Anthony-Twarog, BJ ;

Tanner, D ;

Cracraft, M ;

Twarog, BA .

ASTRONOMICAL JOURNAL, 2006, 131 (01) :461-472

[2] A search for stars of very low metal abundance.: IV.: uvbyCa observations of metal-weak candidates from the northern HK survey [J].

Anthony-Twarog, BJ ;

Sarajedini, A ;

Twarog, BA ;

Beers, TC .

ASTRONOMICAL JOURNAL, 2000, 119 (06) :2882-2894

[3] uvbyCaHβ CCD photometry of clusters.: V.: The metal-deficient open cluster NGC 2243 [J].

Anthony-Twarog, BJ ;

Atwell, J ;

Twarog, BA .

ASTRONOMICAL JOURNAL, 2005, 129 (02) :872-887

[4] uvbyCaHβ CCD photometry of clusters.: IV.: Solving the riddle of NGC 3680 [J].

Anthony-Twarog, BJ ;

Twarog, BA .

ASTRONOMICAL JOURNAL, 2004, 127 (02) :1000-1013

[5] Caby photometry of the Hyades:: Comparisons with the field stars [J].

Anthony-Twarog, BJ ;

Twarog, BA ;

Yu, J .

ASTRONOMICAL JOURNAL, 2002, 124 (01) :389-399

[6] CA-II H AND K FILTER PHOTOMETRY ON THE UVBY SYSTEM .1. THE STANDARD SYSTEM [J].

ANTHONYTWAROG, BJ ;

LAIRD, JB ;

PAYNE, D ;

TWAROG, BA .

ASTRONOMICAL JOURNAL, 1991, 101 (05) :1902-1914

[7] SPECTRA OF STARS IN GALACTIC CLUSTERS [J].

BURBIDGE, EM ;

BURBIDGE, GR .

ASTROPHYSICAL JOURNAL, 1959, 129 (02) :513-&

[8] STANDARD STARS FOR UVBY PHOTOMETRY [J].

CRAWFORD, DL ;

BARNES, JV .

ASTRONOMICAL JOURNAL, 1970, 75 (09) :978-&

[9] 4-COLOR AND HBETA PHOTOMETRY FOR OPEN CLUSTERS .5. NGC 752 [J].

CRAWFORD, DL ;

BARNES, JV .

ASTRONOMICAL JOURNAL, 1970, 75 (08) :946-&

[10]

DANIEL S, 1988, B AM ASTRON SOC, V20, P716

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