2013ApJ...762...27Y


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET07:55:20

2013ApJ...762...27Y - Astrophys. J., 762, 27 (2013/January-1)

The most metal-poor stars. III. The metallicity distribution function and carbon-enhanced metal-poor fraction.

YONG D., NORRIS J.E., BESSELL M.S., CHRISTLIEB N., ASPLUND M., BEERS T.C., BARKLEM P.S., FREBEL A. and RYAN S.G.

Abstract (from CDS):

We examine the metallicity distribution function (MDF) and fraction of carbon-enhanced metal-poor (CEMP) stars in a sample that includes 86 stars with [Fe/H] ≤ -3.0, based on high-resolution, high signal-to-noise spectroscopy, of which some 32 objects lie below [Fe/H] = -3.5. After accounting for the completeness function, the "corrected" MDF does not exhibit the sudden drop at [Fe/H] = -3.6 that was found in recent samples of dwarfs and giants from the Hamburg/ESO survey. Rather, the MDF decreases smoothly down to [Fe/H] = -4.1. Similar results are obtained from the "raw" MDF. We find that the fraction of CEMP objects below [Fe/H] = -3.0 is 23%±6% and 32%±8% when adopting the Beers & Christlieb and Aoki et al. CEMP definitions, respectively. The former value is in fair agreement with some previous measurements, which adopt the Beers & Christlieb criterion.

Abstract Copyright:

Journal keyword(s): early universe - Galaxy: formation - Galaxy: halo - nuclear reactions, nucleosynthesis, abundances - stars: abundances

VizieR on-line data: <Available at CDS (J/ApJ/762/27): table1.dat>

Simbad objects: 88

goto Full paper

goto View the reference in ADS

Number of rows : 88

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 BPS CS 29527-0015 Pe* 00 29 10.6813715074 -19 10 07.306464364   14.61 14.24     CEMP-no 53 0
2 HE 0027-3613 Pe* 00 30 15.9613306172 -35 56 51.230873749     14.74     ~ 28 0
3 SKB 2 Pe* 00 41 39.8197261334 -26 18 54.463949137   13.338 12.221 11.704 11.321 CEMP-s 83 0
4 HD 4306 SB* 00 45 27.1608069956 -09 32 39.781797287 9.80 9.75 9.02 8.75   G3/5w(A) 143 0
5 CD-38 245 Pe* 00 46 36.1954714218 -37 39 33.555736375   12.733 11.929 13.39 10.996 KIIvw 204 0
6 HE 0049-3948 Pe* 00 52 13.3521809211 -39 32 36.982663936   15.70       ~ 12 0
7 HE 0057-5959 Pe* 00 59 53.9858308128 -59 43 29.745940196   16.4       CEMP-no 29 0
8 BPS CS 31065-0008 Pe* 01 05 27.9558658008 -11 57 30.968301441   14.03 13.58     CEMP-no 22 0
9 BPS CS 22183-0031 Pe* 01 09 05.0899437519 -04 43 21.344131594   14.24 13.62 13.178 12.724 ~ 39 0
10 HE 0107-5240 Pe* 01 09 29.1554552993 -52 24 34.203535506   15.89 15.07 15.10 14.283 CEMP-no 229 0
11 BPS CS 29518-0043 * 01 18 38.3021781706 -30 41 02.851142792 14.730 14.94 14.57     ~ 24 0
12 HE 0130-2303 Pe* 01 33 18.2202188953 -22 48 36.713698693 14.933   14.76   14.207 ~ 11 0
13 HE 0132-2439 Pe* 01 34 58.8597298205 -24 24 18.618124263 15.324 15.441 14.82 14.396 13.954 CEMP-no 18 0
14 SDSS J014036.21+234458.1 Pe* 01 40 36.2206962306 +23 44 58.204189219   15.6       CEMP-no 32 0
15 HE 0146-1548 Pe* 01 48 34.7216176944 -15 33 24.493790664   16.406 15.725 15.193 14.658 CEMP-no 14 0
16 HE 0148-2611 Pe* 01 50 59.6230164864 -25 57 03.083300304 14.574 14.824 14.45     ~ 12 0
17 HE 0218-2738 Pe* 02 21 03.9314569603 -27 24 40.404185585 15.037 15.277 14.88     ~ 16 0
18 HE 0228-4047 * 02 30 33.6 -40 33 56   15.5       ~ 9 0
19 HE 0231-6025 Pe* 02 32 30.5633494256 -60 12 11.125193274   14.70 14.30 14.15   ~ 5 0
20 HE 0239-1340 Pe* 02 41 42.3721693746 -13 28 10.604872550   14.73 13.97 13.566 13.080 CEMP-no 54 0
21 HE 0242-0732 Pe* 02 45 00.6902715464 -07 19 42.360776686 15.956 16.227 15.79     ~ 11 0
22 HE 0253-1331 Pe* 02 56 06.6680567160 -13 19 27.014379855   15.94 15.50 15.57   ~ 5 0
23 BPS CS 22963-0004 Pe* 02 56 46.5714288711 -04 51 17.422283787   15.51 14.98     ~ 23 0
24 HE 0305-5442 Pe* 03 06 29.5014936276 -54 30 32.498352902   14.44 13.70 13.212 12.715 KIIvw 73 0
25 HE 0311-1046 Pe* 03 14 20.8495240680 -10 35 11.279671787   13.54 12.73 12.204 11.693 KIIvw 64 0
26 HE 0355-3728 * 03 57 23.0 -37 20 23   16.3       ~ 4 0
27 BPS CS 22186-0025 Pe* 04 24 32.7982638728 -37 09 02.518352449   14.99 14.24 13.740 13.269 ~ 34 0
28 HE 0557-4840 Pe* 05 58 39.2661082631 -48 39 56.890701762   16.16 15.45 14.991   CEMP-no 81 0
29 HE 0945-1435 Pe* 09 47 50.6778622747 -14 49 06.861845556   15.73 15.23 15.35   CEMP-mp 9 0
30 HE 1005-1439 Pe* 10 07 52.3942767236 -14 54 20.982785655   14.440 13.524 13.054 12.515 CEMP-s 18 0
31 HE 1012-1540 Pe* 10 14 53.4754858508 -15 55 53.171904692     14.04     CEMP-no 32 0
32 BPS BS 16923-0089 Pe* 10 15 10.1903183772 +42 53 17.362964234   14.19 13.42 12.950 12.470 ~ 16 0
33 UCAC3 215-112497 Pe* 10 29 15.1491308300 +17 29 27.926665478         15.98 ~ 94 0
34 HE 1116-0054 * 11 18 47.8 -01 11 20   16.5       ~ 5 0
35 BPS BS 16545-0089 Pe* 11 24 27.5182572222 +36 50 28.816930436   14.76 14.44 14.039 13.812 ~ 20 0
36 SDSS J112813.56+384148.9 * 11 28 13.5744084305 +38 41 48.961534424   15.8       ~ 8 0
37 HE 1150-0428 Pe* 11 53 06.6089448606 -04 45 03.484251112     14.91     CEMP-no 27 0
38 HE 1201-1512 Pe* 12 03 37.0450878463 -15 29 33.235237621   14.2       CEMP-no 17 0
39 BPS BS 16920-0017 Pe* 12 07 16.8335641184 +41 39 32.431393304   14.69 13.93 13.368 12.877 ~ 17 0
40 BPS BS 16085-0050 Pe* 12 37 46.6780142371 +19 22 49.553494639 12.965 12.93 12.16 11.668 11.186 ~ 21 0
41 BPS BS 16076-0006 Pe* 12 48 22.7519780017 +20 56 44.030641966   13.88 13.36 13.115 12.706 ~ 20 0
42 HE 1300+0157 Pe* 13 02 56.2444113387 +01 41 52.080881619   14.536 14.11 13.678 13.261 CEMP-no 40 0
43 BPS BS 16929-0005 Pe* 13 03 29.4750923367 +33 51 09.243677482 14.109 14.228 13.610 13.208 12.766 CEMP-no 34 0
44 HE 1320-2952 Pe* 13 22 55.1110761196 -30 08 07.256924718   15.18 14.40 14.93   ~ 11 0
45 HE 1327-2326 Pe* 13 30 05.9395582011 -23 41 49.699027289 13.761 14.01 13.55 13.50 12.803 CEMP-no 218 0
46 BPS BS 16467-0062 Pe* 13 42 00.6325668250 +17 48 40.825137829   14.69 14.09 13.665 13.216 ~ 46 0
47 HE 1346-0427 Pe* 13 49 25.0683386288 -04 42 14.724794843   14.356 14.20 13.807 13.433 ~ 13 0
48 HE 1347-1025 Pe* 13 50 22.3970560107 -10 40 18.944126365     15.06     ~ 12 0
49 HE 1356-0622 Pe* 13 59 30.3169399563 -06 36 34.905212896     14.31     ~ 13 0
50 HE 1402-0523 Pe* 14 04 37.9575452047 -05 38 13.672399454   15.8       ~ 6 0
51 BPS BS 16550-0087 Pe* 14 10 26.7273235719 +18 01 23.732692140   14.59 13.76 13.211 12.688 ~ 23 0
52 HE 1424-0241 Pe* 14 26 40.3306796622 -02 54 27.486631656   15.892 15.45 14.887 14.54 ~ 31 0
53 HD 126587 Pe* 14 27 00.3636840211 -22 14 38.991614082   9.88 9.60 8.75   CEMP-no 124 0
54 BPS BS 16477-0003 Pe* 14 32 56.9230863125 +06 46 06.975505394   14.94 14.22 13.727 13.224 ~ 34 0
55 BPS CS 30325-0094 Pe* 14 54 39.2685324873 +04 21 38.098655567   13.02 12.32 11.849 11.376 ~ 44 0
56 HE 1506-0113 Pe* 15 09 14.2926751829 -01 24 56.730409770   15.4       CEMP-no 22 0
57 BPS CS 30312-0059 Pe* 15 34 48.8386734596 -01 23 37.343657126   13.85 13.14 12.596 12.065 ~ 23 0
58 BPS CS 22884-0108 Pe* 15 49 57.5785957559 -09 14 09.211527667   14.74 14.24     ~ 23 0
59 BPS BS 16084-0160 Pe* 16 28 50.7928939263 +54 37 06.886181844   13.94 13.12 12.630 12.103 ~ 19 0
60 BPS CS 22878-0101 Pe* 16 45 31.4514010341 +08 14 45.471045094   14.59 13.79   12.673 KIIvw 56 0
61 BPS BS 16080-0093 Pe* 16 50 38.3052609571 +59 13 06.554001669   14.30 13.61     ~ 11 0
62 BPS CS 22891-0209 Pe* 19 42 02.1800028329 -61 03 44.536144090   13.03 12.18     KIIvw 53 0
63 BD-18 5550 Pe* 19 58 49.7370363913 -18 12 11.142309703 10.18 10.03 9.35 9.04 8.74 CEMP-no 164 0
64 BPS CS 22885-0096 Pe* 20 20 51.1729562140 -39 53 30.235406812   14.02 13.33     CEMP-no 82 0
65 BPS CS 22950-0046 Pe* 20 21 28.3976234633 -13 16 33.602336953   15.13 14.224 13.639 13.066 CEMP-no 37 0
66 HE 2032-5633 * 20 36 24.9 -56 23 05   15.2       ~ 8 0
67 BPS CS 30336-0049 Pe* 20 45 23.5332845435 -28 42 35.913048347   14.89 14.03 13.328 12.844 ~ 29 0
68 BPS CS 22880-0086 Pe* 20 45 47.5279019006 -18 33 32.356737842   15.08 14.32 14.36   ~ 16 0
69 HE 2047-5612 Pe* 20 51 22.1322817476 -56 00 52.955838994   15.5       ~ 8 0
70 BPS CS 22897-0008 Pe* 21 03 11.8563237063 -65 05 08.852932036   14.02 13.33     CEMP-no 63 0
71 BPS CS 29498-0043 Pe* 21 03 52.1197489072 -29 42 50.344264361   14.8 13.72 13.013 12.406 CEMP-no 88 0
72 HE 2135-1924 Pe* 21 38 04.7395790363 -19 11 04.389695237   15.7       ~ 6 0
73 HE 2139-5432 Pe* 21 42 42.4475156604 -54 18 42.968678598   15.9       CEMP-no 27 0
74 HE 2141-3741 Pe* 21 44 51.1647173336 -37 27 55.017357431   14.10 13.47     CEMP-no 53 0
75 BPS CS 22948-0093 Pe* 21 50 31.5179802313 -41 07 49.353957554   15.54 15.18     ~ 33 0
76 BPS CS 22956-0050 Pe* 21 58 05.8339798574 -65 13 27.160917994   14.95 14.25 13.745 13.211 CEMP-no 36 0
77 BPS CS 22965-0054 Pe* 22 06 30.2933577439 -02 32 34.433172529   15.69 15.07 14.732 14.072 CEMP-no 34 0
78 BPS CS 22892-0052 Pe* 22 17 01.6558480594 -16 39 27.051900047   14.03 13.20 13.06 12.19 KIIvw 415 0
79 BPS CS 29516-0041 Pe* 22 21 48.8261125099 +02 28 44.864481048 13.291 13.4 12.74 12.325 12.013 ~ 36 0
80 BPS CS 29516-0024 Pe* 22 26 15.3575399312 +02 51 46.325239449   14.43 13.57 13.011 12.416 ~ 33 0
81 BPS CS 29491-0053 Pe* 22 36 56.2964405478 -28 31 06.577841168   13.76 12.92 12.380 11.812 ~ 31 0
82 CD-24 17504 Pe* 23 07 20.2536159873 -23 52 35.956455668   12.51 12.18     CEMP-no 82 0
83 BPS CS 22888-0031 Pe* 23 11 32.4788632960 -35 26 42.874207261   15.31 14.90     CEMP-no 33 0
84 HE 2323-0256 Pe* 23 26 29.8073543039 -02 39 58.037206596   15.12 14.36   13.358 CEMP-no 172 0
85 BPS CS 22966-0011 Pe* 23 35 07.0484328903 -30 22 54.279012782 14.694 14.97 14.55     ~ 26 0
86 HE 2334-0604 Pe* 23 37 28.6873335486 -05 47 56.594686365   14.03 13.28 12.768 12.249 KIIvw 68 0
87 HE 2356-0410 Pe* 23 59 13.1417869434 -03 53 48.220053208   14.39 13.60 13.164 12.713 CEMP-no 82 0
88 NAME Local Group GrG ~ ~           ~ 7108 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2013ApJ...762...27Y and select 'bookmark this link' or equivalent in the popup menu


2020.11.25-07:55:20

© Université de Strasbourg/CNRS

    • Contact