2012A&A...538A..25N


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.14CEST19:02:55

2012A&A...538A..25N - Astronomy and Astrophysics, volume 538A, 25-25 (2012/2-1)

Metallicity of M dwarfs. II. A comparative study of photometric metallicity scales.

NEVES V., BONFILS X., SANTOS N.C., DELFOSSE X., FORVEILLE T., ALLARD F., NATARIO C., FERNANDES C.S. and UDRY S.

Abstract (from CDS):

Stellar parameters are not easily derived from M dwarf spectra, which are dominated by complex bands of diatomic and triatomic molecules and do not agree well with the individual line predictions of atmospheric models. M dwarf metallicities are therefore most commonly derived through less direct techniques. Several recent publications propose calibrations that provide the metallicity of an M dwarf from its Ks band absolute magnitude and its V-Ks color, but disagree at the ±0.1dex level. We compared these calibrations using a sample of 23 M dwarfs, which we selected as wide (>5arcsec) companions of F-, G-, or K-dwarfs with metallicities measured on a homogeneous scale and which we require to have V band photometry measured to better than ∼0.03mag. We find that the Schlaufman & Laughlin (2010A&A...519A.105S) calibration has the lowest offsets and residuals against our sample, and used our improved statistics to marginally refine that calibration. With more strictly selected photometry than in previous studies, the dispersion around the calibration is well in excess of the [Fe/H] and photometric uncertainties. This suggests that the origin of the remaining dispersion is astrophysical rather than observational.

Abstract Copyright:

Journal keyword(s): stars: late-type - stars: fundamental parameters - binaries: general - planetary systems - stars: atmospheres

Simbad objects: 47

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Number of rows : 47

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 HD 6660 ** 01 07 37.87246 +22 57 17.9163 10.617 9.503 8.362 7.698 7.142 K4+M3 93 1
2 HD 6660A PM* 01 07 37.8743968554 +22 57 17.926304917   9.58 9.15 7.91   K4V 79 0
3 HD 6660B PM* 01 07 38.5333790402 +22 57 20.722795290   15.6 13.60 14.21   M3.5Ve 34 0
4 G 70-50 PM* 01 18 40.2172414667 -00 52 27.820771726   12.13 10.679 9.821 9.01 K7Ve 41 0
5 HD 7895 ** 01 18 41.0987341788 -00 52 03.238932939   9.19 8.68 8.75   K1V 80 0
6 HD 8326 PM* 01 22 07.6137856125 -26 53 35.158144375   9.75 8.76     K2V 45 0
7 G 274-15 PM* 01 22 09.9181433810 -26 54 22.965937580   17.34 15.5 15.31   M3 12 0
8 HD 11964 PM* 01 57 09.6073695508 -10 14 32.731766141   7.25 6.42     G9VCN+1 146 1
9 G 272-127 PM* 01 57 11.0549604018 -10 14 53.303154135   11.39 10.56 10.758 9.41 M0.0Ve 25 1
10 L 657-32 PM* 02 28 31.9358887875 -20 02 26.162186681   14.44 12.856 12.465   M2.5V 23 0
11 HD 15468 PM* 02 29 01.7234758562 -19 58 45.035477673 10.991 9.928 8.767 8.066 7.445 K4.5Vk 49 0
12 HD 16160 PM* 02 36 04.9023844802 +06 53 12.431588708   6.81   5.2   K3V 473 1
13 V* BX Cet BY* 02 36 15.2666844128 +06 52 17.924295081   13.28   11.405   M3.5V 146 1
14 HD 18757 PM* 03 04 09.6344824917 +61 42 20.959343616   7.25   6.2   G1.5V 115 0
15 G 246-22 PM* 03 04 43.4429380657 +61 44 08.856701690   13.9   12.3   M2.5V 33 0
16 HD 21209B PM* 03 23 15.8895113358 -49 59 38.742852590   11.71 10.32 9.925   K8Vk: 25 0
17 HD 21209 PM* 03 23 17.1766340832 -49 59 30.914228154   9.67 8.59     K3.5V 54 0
18 HD 24916 Fl* 03 57 28.6989213844 -01 09 34.071545156 10.224 9.166 8.014 7.336 6.724 K4V 118 0
19 HD 24916B SB* 03 57 28.9032443169 -01 09 23.484938401   13.00 11.48 11.030   M2.5V 53 0
20 HD 286955 SB* 04 39 42.6022900760 +09 52 19.400148055   10.23   8.5   K3 40 0
21 G 83-29 PM* 04 39 43.2614597642 +09 51 46.746960949   14.6   12.5   M3 23 0
22 HD 37394 BY* 05 41 20.3357283721 +53 28 51.810629854 7.58 7.07 6.23 5.54 5.11 K1 289 0
23 HD 233153 PM* 05 41 30.7305969608 +53 29 23.290085020   11.31   9.343   M1.0V 145 0
24 G 106-36 PM* 06 17 10.6528247532 +05 07 02.359413607   14.91 13.32 12.852   M3.5V 46 1
25 HD 43587 SB* 06 17 16.1298959119 +05 05 59.915616770 6.400 6.290   5.3   G0V 206 0
26 HD 50281B PM* 06 52 18.0414038629 -05 11 24.039080436   11.47 10.05 9.870   M2.5V 99 1
27 HD 50281 PM* 06 52 18.0504546991 -05 10 25.366165190   7.64 6.57     K3.5V 169 0
28 * 18 Pup B ** 08 10 34.2940211397 -13 48 51.131341156   13.29 11.815 11.422   M2.5V 43 0
29 * 18 Pup PM* 08 10 39.8257869468 -13 47 57.138604864   6.03 5.54     F6.5V 122 0
30 * rho01 Cnc PM* 08 52 35.8113282132 +28 19 50.956901366 7.45 6.82   5.4   K0IV-V 943 1
31 * rho01 Cnc B PM* 08 52 40.8627482955 +28 18 58.824842873   14.80   12.814   M4.5V 113 1
32 LP 128-32 Fl* 10 50 38.2440808834 +51 45 01.535282202   16.1   13.680   M4.1 18 0
33 V* LZ UMa BY* 10 50 40.3084435456 +51 47 58.117342349       7.7   G5V 32 0
34 HD 117579 PM* 13 31 28.6886991436 -08 00 26.418049055   9.57 8.85     G6V 30 1
35 Ross 477 PM* 13 31 29.7769809212 -07 59 59.505763997   13.1 12.420 12.033   M0.0Ve 15 1
36 V* V645 Cen Fl* 14 29 42.9451234609 -62 40 46.170818907 14.21 12.95 11.13 9.45 7.41 M5.5Ve 884 0
37 * alf Cen A SB* 14 39 36.49400 -60 50 02.3737 0.96 0.72 0.01     G2V 1106 0
38 HD 144579B PM* 16 04 50.8583044611 +39 09 35.919435070   15.92   13.924   M4.0V 35 1
39 HD 144579 PM* 16 04 56.7938239883 +39 09 23.434791067 7.60 7.40 6.67 6.04 5.63 G8V 245 1
40 HD 154363 PM* 17 05 03.3947074782 -05 03 59.437237339 9.945 8.881 7.709 6.985 6.364 K4/5V 194 0
41 HD 154363B PM* 17 05 13.7796928469 -05 05 39.248992104 12.571 11.486 10.071 9.101 7.958 M1.5V 131 0
42 * 41 Ara B PM* 17 19 02.9683561300 -46 38 13.186383810   10.10 8.69     M0VpCa-3Cr-1 26 0
43 * 41 Ara A PM* 17 19 03.8375245548 -46 38 10.441325885   6.31 5.52     G9V 10 0
44 HD 191785 PM* 20 11 06.0735700815 +16 11 16.793163680 8.665 8.167 7.323 6.862 6.437 K0V 93 1
45 G 143-35 PM* 20 11 13.2595959381 +16 11 07.989062567   15.55 13.932 13.774   M4.0V 49 1
46 L 1288-4 ** 20 40 44.5176 +19 54 03.126   13.42   11.46   M2.5V 46 1
47 HD 197076 PM* 20 40 45.1407864181 +19 56 07.928511642 7.14 7.06 6.44 5.95 5.61 G5V 215 0

    Equat.    Gal    SGal    Ecl

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2019.10.14-19:02:55

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