1 Sarajedini A, Dotter A, Kirkpatrick A. Deep 2MASS photometry of M67 and calibration of the main-sequence J-KS color difference as an age indicator. Astrophys J, 2009, 698: 1872-1878
[2]
2 Bellini A, Bedin L R, Piotto G, et al. The end of the white dwarf cooling sequence in M67. Astron Astrophys, 2010, 513: A50
[3]
3 Castro M, Do Nascimento J D J, Biazzo K, et al. Solar twins in M67: Evolutionary status and lithium abundance. Astron Astrophys, 2011, 526: A17
[4]
4 Balaguer-Nú?ez L, Galadí-Enríquez D, Jordi C. uvby-Hβ CCD photometry and membership segregation of the open cluster NGC 2682 (M67). Astron Astrophys, 2007, 470: 585-596
[5]
5 Pasquini L, Biazzo K, Bonifacio P, et al. Solar twins in M67. Astron Astrophys, 2008, 489: 677-684
[6]
7 An D, Terndrup D M, Pinsonneault M H, et al. The distances to open clusters from main-sequence fitting. III. Improved accuracy with empirically calibrated isochrones. Astrophys J, 2007, 655: 233-260
[7]
11 Paczynski B, Stanek K Z. Galactocentric distance with the optical gravitational lensing experiment and HIPPARCOS red clump stars. Astrophys J Lett, 1998, 494: 219-222
[8]
12 Alves D R. K-band calibration of the red clump luminosity. Astrophys J, 2000, 539: 732-741
[9]
13 Groenewegen M A T. The red clump absolute magnitude based on revised Hipparcos parallaxes. Astron Astrophys, 2008, 488: 935-941
15 Skrutskie M F, Cutri R M, Stiening R, et al. The two micron all sky survey (2MASS). Astron J, 2006, 131: 1163-1183
[12]
16 Zacharias N, Finch C T, Girard T M, et al. The fourth US naval observatory CCD astrograph catalog (UCAC4). Astron J, 2013, 145: 44
[13]
18 Soubiran C, Le Campion J F, Cayrel de Strobel G, et al. The PASTEL catalogue of stellar parameters. Astron Astrophys, 2010, 515: A111
[14]
21 Piskunov A E, Schilbach E, Kharchenko N V, et al. Tidal radii and masses of open clusters. Astron Astrophys, 2008, 477: 165-172
[15]
25 Zhao J L, Tian K P, Su C G. Discussions of the internal motions and mass segregation of M67 on the basis of accurate proper motions. Astrophys Space Sci, 1996, 235: 93-108
[16]
26 Davenport J R A, Sandquist E L. Death of a cluster: The destruction of M67 as seen by the sloan digital sky survey. Astrophys J, 2010, 711: 559-572
[17]
6 Sandquist E L. A high relative precision colour-magnitude diagram of M67. Mon Not R Astron Soc, 2004, 347: 101-118
[18]
8 Friel E D, Jacobson H R, Pilachowski C A. Abundances of red giants in old open clusters. V. Be 31, Be 32, Be 39, M 67, NGC 188, and NGC 1193. Astron J, 2010, 139: 1942-1967
[19]
9 Pancino E, Carrera R, Rossetti E, et al. Chemical abundance analysis of the open clusters Cr 110, NGC 2099 (M37), NGC 2420, NGC 7789, and M67 (NGC 2682). Astron Astrophys, 2010, 511: A56
[20]
10 Randich S, Sestito P, Primas F, et al. Element abundances of unevolved stars in the open cluster M67. Astron Astrophys, 2006, 450: 557-567
[21]
17 Pasquini L, Brucalassi A, Ruiz M T, et al. Search for giant planets in M67. I. Overview. Astron Astrophys, 2012, 545: A139
[22]
19 Dias W S, Alessi B S, Moitinho A, et al. New catalogue of optically visible open clusters and candidates. Astron Astrophys, 2002, 389: 871-873
[23]
20 Cambrésy L, Beichman C A, Jarrett T H, et al. Extinction with 2MASS: Star counts and reddening toward the North America and Pelican Nebulae. Astron J, 2002, 123: 2559-2573
[24]
22 Kharchenko N V, Piskunov A E, R?ser S, et al. Astrophysical parameters of galactic open clusters. Astron Astrophys, 2005, 438: 1163-1173
[25]
23 Bonatto C, Bica E. Mass segregation in M67 with 2MASS. Astron Astrophys, 2003, 405: 525-530
[26]
24 Nishiyama S, Nagata T, Tamura M, et al. The interstellar extinction law toward the galactic center. II. V, J, H, and KS bands. Astrophys J, 2008, 680: 1174-1179