2014A&A...563A..32C


Query : 2014A&A...563A..32C

2014A&A...563A..32C - Astronomy and Astrophysics, volume 563A, 32-32 (2014/3-1)

A sequence of nitrogen-rich very red giants in the globular cluster NGC 1851.

CARRETTA E., D'ORAZI V., GRATTON R.G. and LUCATELLO S.

Abstract (from CDS):

We present the abundances of N in a sample of 62 stars on the red giant branch (RGB) in the peculiar globular cluster NGC 1851. The values of [N/Fe] ratio were obtained by comparing the flux measured in the observed spectra with that from synthetic spectra for up to about 15 features of CN. This is the first time that N abundances are obtained for such a large sample of RGB stars from medium-resolution spectroscopy in this cluster. With these abundances, we provide chemical tagging of the split RGB found from several studies in NGC 1851. The secondary reddest sequence on the RGB is populated almost exclusively by N-rich stars, confirming our previous suggestion based on Stroemgren magnitudes and colours. These giants are also, on average, enriched in s-process elements such as Ba, and are likely the results of pollution from low-mass stars that experienced episodes of third dredge-up in the asymptotic giant branch phase.

Abstract Copyright:

Journal keyword(s): stars: abundances - globular clusters: individual: NGC 1851 - stars: Population II - globular clusters: general - stars: atmospheres

Simbad objects: 67

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Number of rows : 67
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 [CLG2011] 13618 RG* 05 13 28.2684956952 -40 10 21.603129996   16.392 15.482     ~ 7 0
2 GES J05134185-4004415 RG* 05 13 41.8641026976 -40 04 41.741719428   17.819 16.994     ~ 6 0
3 GES J05134382-4001154 RG* 05 13 43.8220017144 -40 01 15.572289684   16.859 16.012     ~ 8 0
4 GES J05134740-4004097 RG* 05 13 47.4056358648 -40 04 09.840624600   17.019 16.090     ~ 7 0
5 2MASS J05134897-4001199 RG* 05 13 48.9851610000 -40 01 20.043796440   16.642 15.769     ~ 7 0
6 [CLG2011] 48277 RG* 05 13 50.9551602312 -39 56 08.300429304   17.659 16.863     ~ 5 0
7 GES J05135210-3957261 RG* 05 13 52.1075996232 -39 57 26.208193104   16.723 15.753     ~ 6 0
8 [CLG2011] 26880 RG* 05 13 52.9069609512 -40 04 05.336935428   17.537 16.699     ~ 6 0
9 [CLG2011] 39364 RG* 05 13 53.0456013888 -40 01 42.499351992   16.765 15.877     ~ 6 0
10 [CLG2011] 46958 RG* 05 13 53.4711096048 -39 58 45.186742128   17.048 16.204     ~ 6 0
11 2MASS J05135414-4003038 RG* 05 13 54.1524411288 -40 03 04.001232096   16.460 15.517     ~ 7 0
12 GES J05135599-4004536 RG* 05 13 55.9921128552 -40 04 53.569834932   16.765 15.814     ~ 7 0
13 [CLG2011] 41855 RG* 05 13 56.8229817336 -40 01 09.007409460   17.610 16.847     ~ 6 0
14 GES J05135713-4006315 RG* 05 13 57.1398310704 -40 06 31.762199520   17.002 16.120     ~ 6 0
15 [CLG2011] 25037 RG* 05 13 57.6528371784 -40 04 31.142084340   16.975 16.106     ~ 6 0
16 2MASS J05135862-3959242 RG* 05 13 58.6296053184 -39 59 24.343326204   17.075 16.238     ~ 6 0
17 [CLG2011] 29203 RG* 05 13 58.8426768312 -40 03 36.517068936   16.162 15.115     ~ 5 0
18 [CLG2011] 44224 RG* 05 13 59.0548073400 -40 00 26.698394772   17.660 16.839     ~ 6 0
19 [CLG2011] 25497 RG* 05 13 59.2282579632 -40 04 24.404514780   17.452 16.608     ~ 6 0
20 GES J05140063-4000413 RG* 05 14 00.6423822888 -40 00 41.443383312   17.624 16.854     ~ 5 0
21 [CLG2011] 27491 RG* 05 14 01.7637322800 -40 03 57.401466984   17.499 16.685     ~ 6 0
22 GES J05140233-4001525 RG* 05 14 02.3388968400 -40 01 52.741619796   16.727 15.837     ~ 5 0
23 2MASS J05140259-4000220 RG* 05 14 02.6032637712 -40 00 22.269161700   16.549 15.653     ~ 7 0
24 [CLG2011] 25678 RG* 05 14 04.1456913744 -40 04 21.740855952   17.713 16.940     ~ 5 0
25 [CLG2011] 40615 RG* 05 14 04.4322508684 -40 01 26.080179763   16.114 15.156     ~ 7 0
26 GES J05140456-4005137 RG* 05 14 04.5688045968 -40 05 13.853465880   16.820 15.945     ~ 5 0
27 [CLG2011] 28116 RG* 05 14 04.6054863360 -40 03 49.706541648   17.040 16.200     ~ 6 0
28 2MASS J05140473-4007017 RG* 05 14 04.7383450728 -40 07 01.938207576   17.339 16.521     ~ 8 0
29 [CLG2011] 45090 RG* 05 14 05.6316196848 -40 00 03.705776748   17.047 16.228     ~ 6 0
30 [CLG2011] 48085 RG* 05 14 06.1881884544 -39 56 43.348468668   16.115 15.144     ~ 5 0
31 2MASS J05140647-4005417 RG* 05 14 06.4785306312 -40 05 41.894636424   17.344 16.515     ~ 6 0
32 NGC 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1349 0
33 Cl* NGC 1851 PML 37 * 05 14 07.3196794272 -40 01 30.337909716   16.414 15.533     ~ 7 0
34 GES J05140741-4004554 RG* 05 14 07.4204336144 -40 04 55.552128642   16.693 15.806     ~ 4 0
35 [CLG2011] 21453 RG* 05 14 08.5054114416 -40 05 54.518739000   16.746 15.835     ~ 6 0
36 2MASS J05141002-3959035 RG* 05 14 10.0378784568 -39 59 03.646563216   17.316 16.521     ~ 7 0
37 2MASS J05141052-3958095 RG* 05 14 10.5411040368 -39 58 09.612679404   16.341 15.437     ~ 6 0
38 2MASS J05141133-4004092 RG* 05 14 11.3377298352 -40 04 09.403235040   17.293 16.472     ~ 8 0
39 GES J05141171-3959545 RG* 05 14 11.7146258688 -39 59 54.557496024   16.981 16.155     ~ 7 0
40 [CLG2011] 35999 RG* 05 14 12.0806469600 -40 02 20.197534632   15.962 14.971     ~ 5 0
41 Cl* NGC 1851 PML 21 * 05 14 12.8595964592 -40 03 10.354409999   16.998 16.158     ~ 7 0
42 [CLG2011] 31284 RG* 05 14 14.1216907992 -40 03 12.809317032   16.767 15.893     ~ 6 0
43 [CLG2011] 20922 RG* 05 14 14.9505786672 -40 06 15.537148452   16.705 15.784     ~ 7 0
44 GES J05141566-4000059 RG* 05 14 15.6664890264 -40 00 05.923971828   17.096 16.245     ~ 7 0
45 [CLG2011] 32256 RG* 05 14 15.8426891808 -40 03 01.620957384   16.947 16.109     ~ 6 0
46 [CLG2011] 29470 RG* 05 14 17.5410668328 -40 03 32.715958104   17.413 16.548     ~ 5 0
47 [CLG2011] 31463 RG* 05 14 17.576 -40 03 10.61   17.774 17.031     ~ 5 0
48 [CLG2011] 30286 RG* 05 14 19.4747088432 -40 03 23.832580140   16.985 16.115     ~ 6 0
49 2MASS J05141947-4000076 RG* 05 14 19.4879142504 -40 00 07.680301812   16.04 14.95     ~ 6 0
50 GES J05141979-4006446 RG* 05 14 19.7953700400 -40 06 44.708545296   17.281 16.429     ~ 8 0
51 GES J05142052-4003112 RG* 05 14 20.5324470888 -40 03 11.346102720   17.569 16.761     ~ 5 0
52 [CLG2011] 48388 RG* 05 14 20.6172747936 -39 55 53.836137660   16.937 16.136     ~ 6 0
53 2MASS J05142070-4004195 RG* 05 14 20.7100471848 -40 04 19.521257232   17.344 16.493     ~ 8 0
54 [CLG2011] 22588 RG* 05 14 20.7814259808 -40 05 18.936082500   16.762 15.878     ~ 6 0
55 [CLG2011] 36292 RG* 05 14 23.1189363120 -40 02 16.241241876   17.724 16.917     ~ 6 0
56 GES J05142480-4002227 RG* 05 14 24.8099047416 -40 02 22.697967552   16.813 15.874     ~ 7 0
57 [CLG2011] 38818 RG* 05 14 26.3375012592 -40 01 48.173386548   17.618 16.804     ~ 6 0
58 [CLG2011] 22360 RG* 05 14 28.5205994664 -40 05 24.782989344   17.123 16.223     ~ 6 0
59 GES J05143531-4005355 RG* 05 14 35.3165530032 -40 05 35.494857672   16.530 15.572     ~ 5 0
60 2MASS J05143598-4005532 RG* 05 14 35.9989606416 -40 05 53.048460912   17.512 16.680     ~ 7 0
61 [CLG2011] 52570 RG* 05 14 39.4272081696 -40 01 54.585175584   17.680 16.902     ~ 4 0
62 [CLG2011] 49965 RG* 05 14 48.6785450328 -40 09 00.913806036   17.156 16.242     ~ 6 0
63 [CLG2011] 51311 RG* 05 15 00.8731648008 -40 04 41.764595232   16.706 15.758     ~ 6 0
64 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1355 0
65 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3283 0
66 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1778 0
67 NAME Local Group GrG ~ ~           ~ 7831 0

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2022.11.27-16:44:32

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