Brown dwarf disks with ALMA: Evidence for truncated dust disks in Ophiuchus

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This article has an erratum: [https://doi.org/10.1051/0004-6361/201628623e]

Table 2

Alma data and disk mass.

Name	F_peak	F_tot	Size^a	M_dust^b	M_disk^c
	[mJy/beam]	[mJy]	[arcsec]	[M_⊕]	[10^-3M_⊙]

SONYC-RhoOph-8	1.00 ± 0.08	1.0	<0.2	0.5	0.15
ISO-Oph023	1.30 ± 0.16	1.5	<0.2	1.1	0.33
ISO-Oph030	4.20 ± 0.15	4.8	<0.2	2.7	0.80
ISO-Oph032	1.62 ± 0.1	1.80	<0.2	1.4	0.42
ISO-Oph033	1.2 ± 0.18	1.3:	<0.2	2.6	0.77
ISO-Oph035	–	<0.9	–	<0.5	<0.15
CRBR 2322.3-1143	–	<0.6	–	<0.9	<0.27
ISO-Oph042	3.61 ± 0.19	4.2	~0.25	3.5	1.0
GY92-202	–	<0.5	–	<0.5	<0.15
ISO-Oph102	3.66 ± 0.19	3.8	<0.2	2.5	0.75
ISO-Oph138	1.96 ± 0.085	2.0	<0.2	1.0	0.30
GY92-264	3.96 ± 0.09	4.1	<0.2	4.4	1.3
ISO-Oph160	6.13 ± 0.20	7.60	~0.3	6.3	1.9
ISO-Oph164	–	<0.8	–	<0.5	<0.15
GY92-320	–	<0.4	–	<0.7	<0.21
ISO-Oph176	–	<0.5	–	<0.3	<0.09
ISO-Oph193	7.82 ± 0.20	8.7	~0.2	4.8	1.43

Notes.

^(a)

Deconvolved major axis; unresolved objects have size <0.2 arcsec.

^(b)

Dust mass from the F_{890 μm}, κ_{890 μm} = 2 cm²/g; see text for details.

^(c)

Total (gas+dust) disk mass computed from M_dust assuming a gas = to-dust mass ratio of 100.

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