2009ApJ...699..933J


C.D.S. - SIMBAD4 rel 1.7 - 2020.11.25CET07:07:59

2009ApJ...699..933J - Astrophys. J., 699, 933-937 (2009/July-2)

On the metal richness of M dwarfs with planets.

JOHNSON J.A. and APPS K.

Abstract (from CDS):

Knowledge of the metallicities of M dwarfs rests predominantly on the photometric calibration of Bonfils and collaborators, which predicts that M dwarfs in the solar neighborhood, including those with known planets, are systematically metal poor compared to their higher-mass counterparts. We test this prediction using a volume-limited sample of low-mass stars, together with a subset of M dwarfs with high-metallicity, F, G, and K wide binary companions. We find that the Bonfils et al. photometric calibration systematically underestimates the metallicities of our high-metallicity M dwarfs by an average of 0.32 dex. We derive a new photometric metallicity calibration and show that M dwarfs with planets appear to be systematically metal rich, a result that is consistent with the metallicity distribution of FGK dwarfs with planets.

Abstract Copyright:

Journal keyword(s): planetary systems - stars: abundances - stars: late-type

Simbad objects: 14

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Number of rows : 14

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 HD 18143C PM* 02 55 35.7790759279 +26 52 20.464563691   15.45   13.493   M4.0V 48 1
2 HD 285968 PM* 04 42 55.7753203198 +18 57 29.394344631 12.668 11.49 9.951 8.931 7.702 M2.5V 261 2
3 HD 38529B PM* 05 46 19.3765701218 +01 12 47.263218467   13.9   13.010   M2.5V 17 1
4 HD 46375B PM* 06 33 12.0900929259 +05 27 53.170881462     11.8 11.683   M2.0V 13 0
5 L 675-81 PM* 08 40 59.2055621000 -23 27 22.598649814   13.2 11.975 11.637 9.37 M3.5V 110 1
6 * rho01 Cnc B PM* 08 52 40.8627482955 +28 18 58.824842873   14.80   12.814   M4.5V 122 1
7 Ross 905 PM* 11 42 11.0933874353 +26 42 23.658083337   12.06 10.613 10.272 8.24 M3V 509 1
8 NAME Proxima Centauri Er* 14 29 42.9451234609 -62 40 46.170818907 14.21 12.95 11.13 9.45 7.41 M5.5Ve 994 0
9 BD-07 4003 BY* 15 19 26.8271336166 -07 43 20.190958776 13.403 11.76 10.560 9.461 8.911 M3V 544 2
10 CD-46 11540 PM* 17 28 39.9455601300 -46 53 42.693246243 12.177 10.973 9.407 8.337 7.006 M3V 211 1
11 G 125-55 PM* 20 03 26.5808933057 +29 51 59.527225990       14.09 11.24 M4.5V 67 0
12 HD 204961 PM* 21 33 33.9749932664 -49 00 32.403471949 11.359 10.176 8.672 7.665 6.479 M2/3V 214 1
13 BD-05 5715 PM* 22 09 40.3443754647 -04 38 26.651267098 13.006 11.868 10.366 9.279 7.877 M3.5V 230 1
14 BD-15 6290 BY* 22 53 16.7323107416 -14 15 49.303409936 12.928 11.749 10.192 9.013 7.462 M3.5V 866 1

    Equat.    Gal    SGal    Ecl

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2020.11.25-07:07:59

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