Table 2: Astrophysical data for MN Lupi.
Parameter

Distance 150 pc (adopted)

Spectral type M 0

$M_{\rm V}$ +8 $.\!\!^{\rm m}$ 99

Luminosity $0.15 \pm0.03~L_\odot$ (from M_V)

$0.14\pm 0.02~L_\odot$ (from $R_{v\sin i}$ and $T_{\rm eff}$ )

$\log g$ 4.5 (adopted)

$T_{\rm eff}$ $3800 \pm150$ K

Radius $0.87 \pm 0.06~R_\odot$ (from L and $T_{\rm eff}$ )

$0.90 \pm0.02~R_\odot$ (from $v\sin i$ and i)

$v\sin i$ $74.6 \pm1.0$ km s^-1

Rotation period $0.439\pm0.005$ days (10.5 h)

Minimum radius $0.648 \pm 0.015~R_\odot$ (from P and $v\sin i$ )

Inclination $46\pm1$ $^\circ$ (from Doppler imaging)

Mass 0.68 ^+0.06_-0.10 $M_\odot$ (Baraffe et al. tracks)

$0.54\pm0.12~M_\odot$ (Siess et al. tracks)

Age 20 $\pm$ 10 Myr

Lithium abundance 3.1 $\pm$ 0.1 ( $\log n({\rm H})=12$ )

Macroturbulence, $\zeta$ 1.0 km s^-1

Microturbulence, $\xi$ 0.5 km s^-1

**Table 2:** Astrophysical data for MN Lupi.
Parameter
Distance	150 pc (adopted)
Spectral type	M 0
$M_{\rm V}$	+8 $.\!\!^{\rm m}$ 99
Luminosity	$0.15 \pm0.03~L_\odot$ (from M_V)
	$0.14\pm 0.02~L_\odot$ (from $R_{v\sin i}$ and $T_{\rm eff}$ )
$\log g$	4.5 (adopted)
$T_{\rm eff}$	$3800 \pm150$ K
Radius	$0.87 \pm 0.06~R_\odot$ (from L and $T_{\rm eff}$ )
	$0.90 \pm0.02~R_\odot$ (from $v\sin i$ and i)
$v\sin i$	$74.6 \pm1.0$ km s^-1
Rotation period	$0.439\pm0.005$ days (10.5 h)
Minimum radius	$0.648 \pm 0.015~R_\odot$ (from P and $v\sin i$ )
Inclination	$46\pm1$ $^\circ$ (from Doppler imaging)
Mass	0.68 ^+0.06_-0.10 $M_\odot$ (Baraffe et al. tracks)
	$0.54\pm0.12~M_\odot$ (Siess et al. tracks)
Age	20 $\pm$ 10 Myr
Lithium abundance	3.1 $\pm$ 0.1 ( $\log n({\rm H})=12$ )
Macroturbulence, $\zeta$	1.0 km s^-1
Microturbulence, $\xi$	0.5 km s^-1

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and data reduction
	3 MN Lupi = RX J1523.5-3821
	4 Doppler imaging of MN Lupi
	5 A magnetic star-disk model for MN Lupi
	6 Discussion and conclusions
	References