2016AJ....151...49K


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.22CEST01:33:02

2016AJ....151...49K - Astron. J., 151, 49 (2016/March-0)

Chemical composition of intermediate-mass star members of the M6 (NGC 6405) open cluster.

KILICOGLU T., MONIER R., RICHER J., FOSSATI L. and ALBAYRAK B.

Abstract (from CDS):

We present here the first abundance analysis of 44 late B-, A-, and F-type members of the young open cluster M6 (NGC 6405, age about 75 Myr). Low- and medium-resolution spectra, covering the 4500-5840 Å wavelength range, were obtained using the FLAMES/GIRAFFE spectrograph attached to the ESO Very Large Telescopes. We determined the atmospheric parameters using calibrations of the Geneva photometry and by adjusting the Hβ profiles to synthetic ones. The abundances of up to 20 chemical elements, from helium to mercury, were derived for 19 late B, 16 A, and 9 F stars by iteratively adjusting synthetic spectra to the observations. We also derived a mean cluster metallicity of [Fe/H] = 0.07±0.03 dex from the iron abundances of the F-type stars. We find that for most chemical elements, the normal late B- and A-type stars exhibit larger star-to-star abundance variations than the F-type stars probably because of the faster rotation of the B and A stars. The abundances of C, O, Mg, Si, and Sc appear to be anticorrelated with that of Fe, while the opposite holds for the abundances of Ca, Ti, Cr, Mn, Ni, Y, and Ba as expected if radiative diffusion is efficient in the envelopes of these stars. In the course of this analysis, we discovered five new peculiar stars: one mild Am, one Am, and one Fm star (HD 318091, CD-32 13109, GSC 07380-01211, CP1), one HgMn star (HD 318126, CP3), and one He-weak P-rich (HD 318101, CP4) star. We also discovered a new spectroscopic binary, most likely a SB2. We performed a detailed modeling of HD 318101, the new He-weak P-rich CP star, using the Montréal stellar evolution code XEVOL which self-consistently treats all particle transport processes. Although the overall abundance pattern of this star is properly reproduced, we find that detailed abundances (in particular the high P excess) resisted modeling attempts even when a range of turbulence profiles and mass-loss rates were considered. Solutions are proposed which are still under investigation. Radio Galaxies, Agn And Galaxy Nuclei

Abstract Copyright:

Journal keyword(s): open clusters and associations: individual: M6 - stars: abundances - stars: individual: HD 318101

VizieR on-line data: <Available at CDS (J/AJ/151/49): table3.dat table4.dat table5.dat table7.dat table8.dat table14.dat>

Simbad objects: 59

goto Full paper

goto View the reference in ADS

Number of rows : 59

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 2908 0
2 Cl Melotte 25 OpC 04 26 54.00 +15 52 00.0           ~ 2581 0
3 * alf CMi SB* 07 39 18.11950 +05 13 29.9552 0.82 0.79 0.37 -0.05 -0.28 F5IV-V+DQZ 1740 0
4 NGC 2632 OpC 08 40 24 +19 40.0           ~ 1179 0
5 * kap Cnc a2* 09 07 44.8101438776 +10 40 05.527005225 4.70 5.13 5.24     B8IIImnp 351 0
6 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 368 1
7 NAME Ursa Major Moving Group MGr 12 32 +57.0           ~ 371 2
8 NGC 5460 OpC 14 07 27 -48 20.6   5.85 5.6     ~ 77 0
9 HD 318103 * 17 39 21.8859004873 -32 07 56.208179400   10.70 10.31     A7V 2 0
10 HD 160093 SB* 17 39 28.7285156373 -32 12 26.233875514   12.13 11.71     B9III 7 0
11 V* V970 Sco a2* 17 39 41.2403913936 -32 17 57.534800537   9.38 9.34     ~ 48 0
12 CPD-32 4693 * 17 39 49.6517119690 -32 21 57.926404048   11.34 10.94     F1V 2 0
13 HD 160167 * 17 39 53.5184825539 -32 22 32.214342126   8.69 8.68     B8V 10 0
14 HD 160188 * 17 39 53.6574350942 -32 02 17.625907009   9.31 9.30     B9V 5 0
15 Cl* NGC 6405 E 32c * 17 39 56.0197491167 -32 12 22.051445283   13.32 12.69     F6V 4 0
16 HD 318126 * 17 40 01.9611119109 -32 20 44.915236314   9.51 9.41     B8p 7 0
17 HD 318101 * 17 40 02.2637642412 -32 09 36.931785869   8.24 8.30     B5p 10 0
18 CD-32 13092 * 17 40 04.1823446816 -32 15 40.842482234   10.11 10.01     B9V 5 0
19 CD-32 13093 * 17 40 06.8713889393 -32 13 50.703396623   10.38 10.25     A0V 10 0
20 CD-32 13097 * 17 40 08.8593616080 -32 14 16.656995360   10.18 10.05     A0V 6 0
21 V* V976 Sco dS* 17 40 09.4196617241 -32 12 13.941518965   11.68 11.51     A7IV 13 0
22 CPD-32 4713 SB* 17 40 10.1360547022 -32 13 00.945631806   10.85 10.62 10.68   A5V 5 0
23 HD 160222 * 17 40 10.1678327702 -32 20 25.971202081   8.52 8.46     B7V 9 0
24 HD 160221 * 17 40 11.0971860773 -32 15 23.772702920   7.22 7.24     B5/7(V) 12 0
25 HD 318110 * 17 40 11.1573483665 -32 19 31.094371890   9.00 8.96     B7V 7 0
26 HD 318111 * 17 40 16.5313682720 -32 17 51.093619090   9.538 9.431     B9V 4 0
27 CD-32 13106 * 17 40 16.8518357934 -32 15 55.875227050   10.32 10.20     A2V 6 0
28 CD-32 13109 * 17 40 17.2088851631 -32 12 56.207819990   10.63 10.53 10.59   A1m 7 0
29 CPD-32 4724 * 17 40 17.4676228913 -32 18 11.808216941   10.94 10.71 10.80   A4V 2 0
30 HD 318099 * 17 40 17.7968885871 -32 10 58.322543960   9.92 9.86     B9V 11 0
31 HD 160259 ** 17 40 19.826976 -32 10 45.87528   9.11 9.48 9.49   B8V 10 0
32 NGC 6405 OpC 17 40 20 -32 15.2           ~ 165 0
33 NGC 6405 14 * 17 40 20.9255008220 -32 08 11.881864692   12.20 11.76 11.71   F1V 3 0
34 HD 160260 * 17 40 21.5927259541 -32 15 50.397431048   8.41 8.36     B6V 12 0
35 HD 318112 * 17 40 23.1362557128 -32 19 00.682809562   9.51 9.48     B9V 3 0
36 HD 318095 * 17 40 26.2516295595 -32 07 26.636050073   10.68 10.55     A0 12 1
37 HD 318094 * 17 40 27.5567216351 -32 12 08.451897787   10.79 10.60     A3V 7 0
38 NGC 6405 69 * 17 40 29.4352243552 -32 16 32.448552696   12.52 11.99     F3m 2 0
39 NGC 6405 27 * 17 40 31.0375456866 -32 10 16.877389039   13.17 12.56 12.41   F5V 2 0
40 HD 160297 * 17 40 31.3205172054 -32 11 57.970577801   9.07 9.02     A0V 10 0
41 HD 318113 * 17 40 33.1164057111 -32 18 56.798529854   10.25 10.17     B9V 7 0
42 NGC 6405 18 * 17 40 33.4739978639 -32 09 50.142167766   12.81 12.27     F3V 3 0
43 NGC 6405 26 * 17 40 33.5638292084 -32 10 39.337363676   12.26 11.80     F2V 5 0
44 CPD-32 4739 * 17 40 33.9255500391 -32 17 44.841623029   11.58 11.26     A9V 4 0
45 NGC 6405 66 * 17 40 34.3439468041 -32 15 19.742793947   12.75 12.29     F2V 3 0
46 NGC 6405 6 * 17 40 34.6805591091 -32 06 32.289660483   13.43 12.81     F3V 3 0
47 HD 160298 * 17 40 37.6930757495 -32 19 37.383719876   8.80 8.77     B9V 10 0
48 CD-32 13126 * 17 40 37.9350310875 -32 14 12.696618339   10.81 10.62     A5V 5 0
49 HD 318093 ** 17 40 39.9098496757 -32 11 19.032774188   9.33 9.71 9.64   B9V 9 0
50 HD 318114 * 17 40 42.1903754676 -32 16 49.377466504   10.33 10.23     A0V 7 0
51 HD 318118 * 17 40 49.6974740048 -32 17 24.936494034   10.29 10.27 10.33   A0V 8 0
52 HD 318117 * 17 40 50.3107523317 -32 13 28.015332757   8.85 8.87     B7V 7 0
53 HD 318092 * 17 40 54.5141556610 -32 10 33.964385150   9.54 9.39     B9V 8 0
54 V* BM Sco LP* 17 40 58.5467221878 -32 12 52.066927092 8.75 7.20 5.60     K2IbHdel1 67 0
55 HD 318091 * 17 40 58.8599619286 -32 06 05.251378496   10.8 10.5     A3m 7 0
56 HD 160392 * 17 40 59.7163953797 -32 09 34.324945798   9.15 9.11     B8V 10 0
57 CD-32 13148 * 17 41 05.5147539888 -32 14 51.049496133   11.17 10.89     A6V 7 0
58 * alf Lyr dS* 18 36 56.33635 +38 47 01.2802 0.03 0.03 0.03 0.07 0.10 A0Va 2472 0
59 NAME Sgr Arm PoG 19 00 -30.0           ~ 496 1

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2016AJ....151...49K and select 'bookmark this link' or equivalent in the popup menu


2019.10.22-01:33:02

© Université de Strasbourg/CNRS

    • Contact