Table 1: Results from the ADONIS adaptive optics survey among 199 Sco OB2 member stars. The columns list: Hipparcos number, observed J, H and $K_{\rm S}$ magnitude, spectral type of the primary, angular separation (arcsec), position angle (degrees; measured from North to East), and status (p = primary/single star; c = companion star; nc = new companion star; b = background star). The last two columns list the subgroup of which the system is a member (US = Upper Scorpius; UCL = Upper Centaurus Lupus; LCC = Lower Centaurus Crux), and a flag in case the observing conditions were not photometric. The Hipparcos member stars HIP77315 and HIP77317 are a common proper motion pair (see the Double Star Catalog). In this paper the two stars are treated as separate primaries and not as one system. Table 1 is presented in its entirety in the electronic edition of the journal. A portion is shown here for guidance regarding its form and content.
Star J mag H mag $K_{\rm S}$ mag Spectral type $\rho$ ('') PA ( $^\circ$ ) Status Subgroup Remarks

HIP50520 6.23 A1V p LCC

6.39 2.51 313.3 c

HIP52357 7.64 A3IV p LCC

7.65 0.53 73.0 c

11.45 10.04 72.7 nc

HIP53524 6.76 A8III p LCC

12.67 4.87 316.9 b

HIP53701 6.30 6.37 6.48 B8IV p LCC

9.05 8.76 8.86 3.88 75.8 c

13.06 12.93 13.04 6.57 120.1 b

HIP54231 6.75 A0V p LCC

HIP55188 7.43 A2V p LCC

HIP55899 7.07 A0V p LCC

HIP56354 5.78 A9V p LCC

... ... ... ... ... ... ... ... ... ...

**Table 1:** Results from the ADONIS adaptive optics survey among 199 Sco OB2 member stars. The columns list: *Hipparcos* number, observed J, H and $K_{\rm S}$ magnitude, spectral type of the primary, angular separation (arcsec), position angle (degrees; measured from North to East), and status (p = primary/single star; c = companion star; nc = new companion star; b = background star). The last two columns list the subgroup of which the system is a member (US = Upper Scorpius; UCL = Upper Centaurus Lupus; LCC = Lower Centaurus Crux), and a flag in case the observing conditions were not photometric. The *Hipparcos* member stars HIP77315 and HIP77317 are a common proper motion pair (see the Double Star Catalog). In this paper the two stars are treated as separate primaries and not as one system. Table 1 is presented in its entirety in the electronic edition of the journal. A portion is shown here for guidance regarding its form and content.
Star	J mag	H mag	$K_{\rm S}$ mag	Spectral type	$\rho$ ('')	PA ( $^\circ$ )	Status	Subgroup	Remarks
HIP50520			6.23	A1V			p	LCC
			6.39		2.51	313.3	c
HIP52357			7.64	A3IV			p	LCC
			7.65		0.53	73.0	c
			11.45		10.04	72.7	nc
HIP53524			6.76	A8III			p	LCC
			12.67		4.87	316.9	b
HIP53701	6.30	6.37	6.48	B8IV			p	LCC
	9.05	8.76	8.86		3.88	75.8	c
	13.06	12.93	13.04		6.57	120.1	b
HIP54231			6.75	A0V			p	LCC
HIP55188			7.43	A2V			p	LCC
HIP55899			7.07	A0V			p	LCC
HIP56354			5.78	A9V			p	LCC
...	...	...	...	...	...	...	...	...	...

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and data reduction
	3 Background stars
	4 Properties of the companion stars
	5 Comparison with literature data
	6 Conclusions and discussion
	References
	Online Material