Transition disks: four candidates for ongoing giant planet formation in Ophiuchus

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Table 1

Target properties.

Name^a	Spitzer ID	SpT	T _eff	L _⋆	R _⋆	M _⋆ ^b	Age	A_V	log Ṁ_acc^c	λ _turn - off	α _excess	M _disk ^d
	SSTc2d_		(K)	(L_⊙)	(R_⊙)	(M_⊙)	(Myr)	(mag)	(M_⊙/yr)	(μm)		(M_JUP)

Tran 11	J162506.9-235050	M3	3470	0.24	1.25	0.3	2.1	3.8	–8.8	8.0	0.65	<1.5
Tran 21	J162854.1-244744	M2	3580	0.51	1.74	0.4	1.4	5.4	–9.3	8.0	0.69	1.3
Tran 31	J163205.5-250236	M2	3580	0.19	1.08	0.4	4.1	5.0	–7.3	8.0	0.30	<1.3
Tran 32	J163355.6-244205	K7	4000	0.78	1.70	0.7	2.0	5.0	–9.9	8.0	0.72	11.1

Notes.

^(a)

Alternative names: Tran 21 is WSB 63, Tran 31 is WSB 75, and Tran 32 is RXJ1633.9-2242.

^(b)

Stellar parameters from pre-main sequence evolutionary tracks by Siess et al. (2000).

^(c)

Based on the velocity dispersion of the Hα line from Paper I.

^(d)

Rough estimates of the disk masses based on a single (sub)millimeter flux or upper limits from Paper I.

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