2017MNRAS.466..613M

Query : 2017MNRAS.466..613M

2017MNRAS.466..613M - Mon. Not. R. Astron. Soc., 466, 613-627 (2017/March-3)

A spectroscopic study of the open cluster NGC 6250.

MARTIN A.J., STIFT M.J., FOSSATI L., BAGNULO S., SCALIA C., LEONE F. and SMALLEY B.

Abstract (from CDS):

We present the chemical abundance analysis of 19 upper main-sequence stars of the young open cluster NGC 6250 (log t ∼ 7.42 yr). This work is part of a project aimed at setting observational constraints on the theory of atomic diffusion in stellar photospheres, by means of a systematic study of the abundances of the chemical elements of early F-, A- and late B-type stars of well-determined age. Our data set consists of low-, medium- and high-resolution spectra obtained with the Fibre Large Array Multi Element Spectrograph (FLAMES) instrument of the ESO Very Large Telescope (VLT). To perform our analysis, we have developed a new suite of software tools for the chemical abundance analysis of stellar photospheres in local thermodynamical equilibrium. Together with the chemical composition of the stellar photospheres, we have provided new estimates of the cluster mean radial velocity, proper motion, refined the cluster membership, and we have given the stellar parameters including masses and fractional age. We find no evidence of statistically significant correlation between any of the parameters, including abundance and cluster age, except perhaps for an increase in Ba abundance with cluster age. We have proven that our new software tool may be successfully used for the chemical abundance analysis of large data sets of stellar spectra.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: abundances - open clusters and associations: individual: NGC 6250 - open clusters and associations: individual: NGC 6250

Simbad objects: 45

goto Full paper

goto View the references in ADS

Number of rows : 45
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 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
2 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
3 HD 32115 SB* 05 00 39.8078829840 -02 03 57.709292544   6.60 6.32     A9V 82 0
4 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
5 IC 2391 OpC 08 41 17.5 -53 03 00           ~ 871 0
6 Cl Melotte 111 OpC 12 11 54.9 +25 16 36           ~ 520 0
7 HD 122983 Ro* 14 06 13.7010707688 -48 23 12.684451920 9.770 9.91 9.79     B9/A0IV/V 31 0
8 NGC 5460 OpC 14 07 21.6 -48 16 48   5.85 5.6     ~ 111 0
9 HD 123182 * 14 07 23.2138666416 -48 19 04.902098952 9.909 9.85 9.77 10.07 9.81 B9/A0(V) 24 0
10 HD 152706 * 16 57 12.0959973360 -45 52 35.686772868   10.31 10.09     B9.5V 9 0
11 HD 152743 * 16 57 20.4498954768 -45 51 57.828779316 8.73 9.223 9.062 9.24 8.90 B2IV 36 0
12 HD 329269 * 16 57 34.2138694920 -45 54 38.367496152   11.60 11.09     A 9 0
13 UCAC2 12284480 * 16 57 35.4228537624 -45 54 55.094882976       14.10   ~ 1 0
14 UCAC2 12065030 * 16 57 35.8718336808 -46 01 00.729439428       13.12   ~ 5 0
15 HD 329268 * 16 57 38.6142705816 -45 54 34.012157508   11.95 11.41 11.44 11.03 A3 8 0
16 UCAC2 12284506 * 16 57 39.9799379832 -45 51 29.829712500       12.92   ~ 2 0
17 CD-45 11088 * 16 57 43.0433907077 -46 00 27.120516073 11.40 11.40 11.10 10.96   A0VI: 8 0
18 UCAC2 12284534 * 16 57 43.1750409600 -45 55 48.158291820       13.59   ~ 1 0
19 NGC 6250 25 * 16 57 43.5879591048 -45 59 16.901884824   12.77 12.41 12.21   ~ 8 0
20 HD 329261 * 16 57 44.7353286048 -45 43 33.599409132   11.12 10.74     A7 4 0
21 NGC 6250 26 * 16 57 45.6733563984 -45 58 53.555234124   13.27 12.86 12.70   ~ 8 0
22 UCAC2 12065057 * 16 57 48.5002253448 -46 02 01.168591344       12.50   ~ 1 0
23 NGC 6250 27 * 16 57 52.4992170720 -45 58 59.687989500   13.23 12.48 12.17   ~ 5 0
24 UCAC2 12065058 * 16 57 52.6068287736 -46 00 45.786247200       13.66   ~ 1 0
25 NGC 6250 7 * 16 57 53.1301079136 -45 56 02.114036268   12.10 11.87     ~ 8 0
26 UCAC2 12284594 * 16 57 53.5056469416 -45 59 33.494038548       13.58   ~ 1 0
27 NGC 6250 OpC 16 57 55.2 -45 56 48   6.14 5.9     ~ 89 0
28 UCAC2 12065064 * 16 57 56.0560211136 -46 01 02.684078472       13.31   ~ 6 0
29 NGC 6250 5 * 16 57 58.2337388928 -45 56 34.263228912   11.29 11.10     ~ 11 0
30 UCAC2 12284608 * 16 57 58.4961291528 -45 57 40.252367844       13.95   ~ 4 0
31 UCAC2 12284620 * 16 57 59.4159032160 -45 53 20.608312524       13.19   ~ 1 0
32 UCAC2 12284626 * 16 58 00.1317802920 -45 51 19.328083092       13.28   ~ 1 0
33 UCAC2 12284628 * 16 58 00.6186841968 -45 53 47.228852292       12.54   ~ 5 0
34 NGC 6250 10 * 16 58 00.9664912344 -45 55 17.519684952   12.54 12.18     ~ 10 0
35 NGC 6250 13 * 16 58 01.5236135664 -45 55 35.455939500   13.5 13.1     ~ 10 0
36 NGC 6250 8 * 16 58 02.1142204488 -45 56 27.395977452   12.98 12.58 12.43   ~ 7 0
37 NGC 6250 11 * 16 58 02.4810047280 -45 55 48.529325568   13.4 12.7     ~ 5 0
38 UCAC2 12065075 * 16 58 02.8392772872 -46 01 01.496123400       13.16   ~ 1 0
39 NGC 6250 28 * 16 58 03.5043356808 -45 59 34.789953552   12.78 12.43 12.24   ~ 9 0
40 UCAC2 12284653 * 16 58 06.3257644032 -45 57 54.355826268       14.48   ~ 4 0
41 UCAC2 12284662 * 16 58 08.8261526520 -45 56 10.276542636       13.58   ~ 2 0
42 UCAC2 12284746 * 16 58 26.6068409352 -45 54 15.658097868       13.81   ~ 3 0
43 NGC 6405 OpC 17 40 14.5 -32 14 16           ~ 235 0
44 NGC 6475 OpC 17 53 44.1 -34 49 36           ~ 413 0
45 * 21 Peg * 22 03 19.0326115488 +11 23 11.574375540   5.762 5.822     B9.5V 160 0

To bookmark this query, right click on this link: simbad:objects in 2017MNRAS.466..613M and select 'bookmark this link' or equivalent in the popup menu