Table 2: New double-lined spectroscopic binaries.
Name HD $\alpha$ (2000) $\delta$ (2000)

GJ 3409 B 263175 B 06:46:07.6 +32:33:13.2

Gl 771 B - 19:55:18.8 +06:24:36

**Table 2:** New double-lined spectroscopic binaries.
Name	HD	$\alpha$ (2000)	$\delta$ (2000)
GJ 3409 B	263175 B	06:46:07.6	+32:33:13.2
Gl 771 B	-	19:55:18.8	+06:24:36

Source LaTeX | All tables | In the text

	1 Introduction
	2 Previous metallicity estimates of M dwarfs
	3 Observations and analysis
	4 A photometric calibration of M-dwarf metallicities
	5 The V-band mass-luminosity relation
	6 Metallicity of M-dwarf planet-host stars
	7 Metallicity distribution of M dwarfs
	8 Conclusions
	References
	Online Material