Table 1: Observing Log.
Name UT date Tot. exp. time Filter Camera Mode Strehl Seeing Airmass Remarks

(%) (arcsec)

Classical imaging and coronagraphy

AB Pic A 17/03/2003 60 $\times$ 2 s NB1.24 S13 classical 12 0.75 1.32 science

17/03/2003 120 $\times$ 0.5 s NB1.75 S13 classical 25 0.80 1.22 science

17/03/2003 100 $\times$ 0.35 s NB2.17 S27 classical 32 0.80 1.31 science

AB Pic b 17/03/2003 18 $\times$ 30 s J S13 coronagraphy 12 0.75 1.27 science

17/03/2003 5 $\times$ 30 s H S13 coronagraphy 25 0.80 1.28 science

17/03/2003 3 $\times$ 20 s $K_{\rm s}$ S27 coronagraphy 32 0.80 1.30 science

$\theta$ Ori 1 C 16/03/2003 12 $\times$ 10 s NB1.75 S13 coronagraphy 37 1.00 1.12 astrometric std

AB Pic A 05/03/2004 10 $\times$ 1 s NB1.75 S13 classical 20 1.00 1.20 science

AB Pic b 05/03/2004 4 $\times$ 30 s H S13 coronagraphy 20 1.10 1.20 science

$\theta$ Ori 1 C 05/03/2004 10 $\times$ 12 s H S13 coronagraphy 38 1.10 1.15 astrometric std

AB Pic A 25/09/2004 2 $\times$ 5 s H + ND S13 classical 27 0.74 1.28 science

AB Pic b 25/09/2004 3 $\times$ 20 s H S13 coronagraphy 27 0.75 1.28 science

$\theta$ Ori 1 C 25/09/2004 4 $\times$ 0.8 s H S13 coronagraphy 24 0.85 1.15 astrometric std

Spectroscopy

AB Pic b 03/12/2004 16 $\times$ 300 s SHK S54 ${R}_{\lambda }=550$ na 0.87 1.26 science

HIP 33632 03/12/2004 10 $\times$ 5 s SHK S54 ${R}_{\lambda }=550$ na 0.70 1.08 telluric std

**Table 1:** Observing Log.
Name	UT date	Tot. exp. time	Filter	Camera	Mode	Strehl	Seeing	Airmass	Remarks
						(%)	(arcsec)
Classical imaging and coronagraphy
AB Pic A	17/03/2003	60 $\times$ 2 s	NB1.24	S13	classical	12	0.75	1.32	science
	17/03/2003	120 $\times$ 0.5 s	NB1.75	S13	classical	25	0.80	1.22	science
	17/03/2003	100 $\times$ 0.35 s	NB2.17	S27	classical	32	0.80	1.31	science
AB Pic b	17/03/2003	18 $\times$ 30 s	J	S13	coronagraphy	12	0.75	1.27	science
	17/03/2003	5 $\times$ 30 s	H	S13	coronagraphy	25	0.80	1.28	science
	17/03/2003	3 $\times$ 20 s	$K_{\rm s}$	S27	coronagraphy	32	0.80	1.30	science
$\theta$ Ori 1 C	16/03/2003	12 $\times$ 10 s	NB1.75	S13	coronagraphy	37	1.00	1.12	astrometric std
AB Pic A	05/03/2004	10 $\times$ 1 s	NB1.75	S13	classical	20	1.00	1.20	science
AB Pic b	05/03/2004	4 $\times$ 30 s	H	S13	coronagraphy	20	1.10	1.20	science
$\theta$ Ori 1 C	05/03/2004	10 $\times$ 12 s	H	S13	coronagraphy	38	1.10	1.15	astrometric std
AB Pic A	25/09/2004	2 $\times$ 5 s	H + ND	S13	classical	27	0.74	1.28	science
AB Pic b	25/09/2004	3 $\times$ 20 s	H	S13	coronagraphy	27	0.75	1.28	science
$\theta$ Ori 1 C	25/09/2004	4 $\times$ 0.8 s	H	S13	coronagraphy	24	0.85	1.15	astrometric std
Spectroscopy
AB Pic b	03/12/2004	16 $\times$ 300 s	SHK	S54	${R}_{\lambda }=550$	na	0.87	1.26	science
HIP 33632	03/12/2004	10 $\times$ 5 s	SHK	S54	${R}_{\lambda }=550$	na	0.70	1.08	telluric std

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations
	3 Companionship confirmation
	4 Spectral type determination
	5 Temperature and mass determination
	6 Gravitational collapse or core accretion?
	References