1999AJ....117.2434C

Query : 1999AJ....117.2434C

1999AJ....117.2434C - Astron. J., 117, 2434-2439 (1999/May-0)

The spectra of main-sequence stars in galactic globular clusters. II. CH and CN bands in M71.

COHEN J.G.

Abstract (from CDS):

Spectra with a high signal-to-noise ratio of 79 stars that are just below the main-sequence turnoff of M71 are presented. They yield indices for the strength of the G band of CH and the ultraviolet CN band at 3885 Å. These indices are each to first-order bimodal and they are anticorrelated. There are approximately equal numbers of CN-weak/CH-strong and CN-strong/CH-weak main-sequence stars in M71. It is not yet clear whether these star-to-star variations arise from primordial variations or from mixing within a fraction of individual stars as they evolve.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: Globular Clusters: General - Galaxy: Globular Clusters: Individual: Messier Number: M71 - Stars: Evolution

Nomenclature: Table 1: [C99] M71ms BHHMMSSs+DDMMSS N=78.

Simbad objects: 81

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Number of rows : 81
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
3 [C99] M71ms B1951211+184010 * 19 51 21.1 +18 40 10           ~ 1 0
4 [C99] M71ms B1951215+183720 * 19 51 21.5 +18 37 20           ~ 1 0
5 [C99] M71ms B1951216+183611 * 19 51 21.6 +18 36 11           ~ 1 0
6 [C99] M71ms B1951222+183914 * 19 51 22.2 +18 39 14           ~ 1 0
7 [C99] M71ms B1951224+183638 * 19 51 22.4 +18 36 38           ~ 1 0
8 [C99] M71ms B1951230+184200 * 19 51 23.0 +18 42 00           ~ 1 0
9 [C99] M71ms B1951231+183740 * 19 51 23.1 +18 37 40           ~ 1 0
10 [C99] M71ms B1951237+183746 * 19 51 23.7 +18 37 46           ~ 1 0
11 [C99] M71ms B1951239+183906 * 19 51 23.9 +18 39 06           ~ 1 0
12 [C99] M71ms B1951239+184109 * 19 51 23.9 +18 41 09           ~ 1 0
13 [C99] M71ms B1951241+183940 * 19 51 24.1 +18 39 40           ~ 1 0
14 [C99] M71ms B1951247+184144 * 19 51 24.7 +18 41 44           ~ 1 0
15 [C99] M71ms B1951248+184155 * 19 51 24.8 +18 41 55           ~ 1 0
16 [C99] M71ms B1951249+183857 * 19 51 24.9 +18 38 57           ~ 1 0
17 [C99] M71ms B1951252+183722 * 19 51 25.2 +18 37 22           ~ 1 0
18 [C99] M71ms B1951253+184132 * 19 51 25.3 +18 41 32           ~ 1 0
19 [C99] M71ms B1951253+183831 * 19 51 25.3116958536 +18 38 32.907985152           ~ 1 0
20 [C99] M71ms B1951254+184008 * 19 51 25.4 +18 40 08           ~ 1 0
21 [C99] M71ms B1951257+183914 * 19 51 25.7 +18 39 14           ~ 1 0
22 [C99] M71ms B1951262+183856 * 19 51 26.2 +18 38 56           ~ 1 0
23 [C99] M71ms B1951264+183933 * 19 51 26.4 +18 39 33           ~ 1 0
24 [C99] M71ms B1951266+183825 * 19 51 26.6 +18 38 25           ~ 1 0
25 [C99] M71ms B1951266+183940 * 19 51 26.6 +18 39 40           ~ 1 0
26 [C99] M71ms B1951266+184102 * 19 51 26.6 +18 41 02           ~ 1 0
27 [C99] M71ms B1951268+183621 * 19 51 26.8 +18 36 21           ~ 1 0
28 [C99] M71ms B1951272+183732 * 19 51 27.2 +18 37 32           ~ 1 0
29 [C99] M71ms B1951274+183641 * 19 51 27.4 +18 36 41           ~ 1 0
30 [C99] M71ms B1951274+184033 * 19 51 27.4 +18 40 33           ~ 1 0
31 [C99] M71ms B1951275+184023 * 19 51 27.5 +18 40 23           ~ 1 0
32 [C99] M71ms B1951276+183751 * 19 51 27.6 +18 37 51           ~ 1 0
33 [C99] M71ms B1951277+183627 * 19 51 27.7 +18 36 27           ~ 1 0
34 [C99] M71ms B1951278+183638 * 19 51 27.8 +18 36 38           ~ 1 0
35 [C99] M71ms B1951279+183947 * 19 51 27.9 +18 39 47           ~ 1 0
36 [C99] M71ms B1951283+183952 * 19 51 28.3 +18 39 52           ~ 1 0
37 [C99] M71ms B1951286+184144 * 19 51 28.6 +18 41 44           ~ 1 0
38 [C99] M71ms B1951293+183721 * 19 51 29.3 +18 37 21           ~ 1 0
39 [C99] M71ms B1951294+183804 * 19 51 29.4 +18 38 04           ~ 1 0
40 [C99] M71ms B1951295+183748 * 19 51 29.4573602976 +18 37 49.428083676           ~ 1 0
41 [C99] M71ms B1951297+183832 * 19 51 29.7 +18 38 32           ~ 1 0
42 [C99] M71ms B1951299+183617 * 19 51 29.9 +18 36 17           ~ 1 0
43 [C99] M71ms B1951301+183738 * 19 51 30.1 +18 37 38           ~ 1 0
44 [C99] M71ms B1951302+184144 * 19 51 30.2 +18 41 44           ~ 1 0
45 [C99] M71ms B1951303+183943 * 19 51 30.3 +18 39 43           ~ 1 0
46 [C99] M71ms B1951311+183525 * 19 51 31.0609571256 +18 35 25.969841196           ~ 2 0
47 [C99] M71ms B1951318+184025 * 19 51 31.8 +18 40 25           ~ 1 0
48 [C99] M71ms B1951321+183715 * 19 51 32.1 +18 37 15           ~ 1 0
49 [C99] M71ms B1951325+183607 * 19 51 32.5 +18 36 07           ~ 1 0
50 [C99] M71ms B1951333+184107 * 19 51 33.3 +18 41 07           ~ 2 0
51 [C99] M71ms B1951339+184038 * 19 51 33.9 +18 40 38           ~ 1 0
52 [C99] M71ms B1951355+184057 * 19 51 35.5 +18 40 57           ~ 1 0
53 [C99] M71ms B1951360+183614 * 19 51 36.0 +18 36 14           ~ 1 0
54 [C99] M71ms B1951364+183720 * 19 51 36.4 +18 37 20           ~ 1 0
55 [C99] M71ms B1951364+183749 * 19 51 36.4 +18 37 49           ~ 1 0
56 [C99] M71ms B1951365+183958 * 19 51 36.5 +18 39 58           ~ 1 0
57 [C99] M71ms B1951372+183945 * 19 51 37.2 +18 39 45           ~ 1 0
58 [C99] M71ms B1951372+184149 * 19 51 37.2 +18 41 49           ~ 1 0
59 [C99] M71ms B1951373+183642 * 19 51 37.3 +18 36 42           ~ 1 0
60 [C99] M71ms B1951378+183706 * 19 51 37.8 +18 37 06           ~ 1 0
61 [C99] M71ms B1951380+184103 * 19 51 38.0 +18 41 03           ~ 1 0
62 [C99] M71ms B1951383+184003 * 19 51 38.3 +18 40 03           ~ 1 0
63 [C99] M71ms B1951385+183741 * 19 51 38.5 +18 37 41           ~ 1 0
64 [C99] M71ms B1951387+183512 * 19 51 38.7 +18 35 12           ~ 1 0
65 [C99] M71ms B1951388+184119 * 19 51 38.7716307624 +18 41 18.002961816           ~ 1 0
66 [C99] M71ms B1951389+183610 * 19 51 38.9 +18 36 10           ~ 1 0
67 [C99] M71ms B1951391+183901 * 19 51 39.1 +18 39 01           ~ 1 0
68 [C99] M71ms B1951392+183732 * 19 51 39.2 +18 37 32           ~ 1 0
69 [C99] M71ms B1951396+184028 * 19 51 39.6 +18 40 28           ~ 1 0
70 [C99] M71ms B1951399+184126 * 19 51 39.9 +18 41 26           ~ 1 0
71 [C99] M71ms B1951400+184016 * 19 51 40.0 +18 40 16           ~ 1 0
72 [C99] M71ms B1951403+183817 * 19 51 40.3 +18 38 17           ~ 1 0
73 [C99] M71ms B1951403+184120 * 19 51 40.3 +18 41 20           ~ 1 0
74 [C99] M71ms B1951404+183926 * 19 51 40.4 +18 39 26           ~ 1 0
75 [C99] M71ms B1951405+184141 * 19 51 40.5 +18 41 41           ~ 1 0
76 [C99] M71ms B1951406+183826 * 19 51 40.6 +18 38 26           ~ 1 0
77 [C99] M71ms B1951406+183853 * 19 51 40.6 +18 38 53           ~ 1 0
78 [C99] M71ms B1951411+183806 * 19 51 41.1 +18 38 06           ~ 1 0
79 [C99] M71ms B1951417+183631 * 19 51 41.7 +18 36 31           ~ 1 0
80 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
81 [C99] M71ms B1951323+183552 * 19 56 23 +18 35.9           ~ 1 0

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