A search for pre- and proto-brown dwarfs in the dark cloud Barnard 30 with ALMA

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Volume 597 (January 2017)

A&A, 597 (2017) A17

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Table 1

ALMA 880 μm detections in the B30 region.

ALMA detection coordinates		Separation from				Mass	Mass	Missing		Tentative
RA(J2000)	Dec(J2000)	phase center	LABOCA	S _ν	rms	(ALMA)^**	(LABOCA)^b^**	flux^c	A _v ^d	nature
[h m s]	[° ′ ′′]	[arcsec]	source^a	[mJy]	[mJy/beam]	[M_Jup]	[M_Jup]	[%]	[mag ]

05:31:22.97	+12:11:34.7	8.7	B30-LB08	5.70	0.26	9	106	87	2.5	VeLLO/pre-BD
05:31:09.29	+12:11:08.8	6.8	B30-LB10	2.20	0.23	3	46	93	1.2	pre-BD
05:31:19.46	+12:09:15.1	4.5	B30-LB14^*	44.0	0.25	67	51	0	2.0	YSO
05:31:27.81	+12:05:30.9	4.2	B30-LB19^*	10.7	0.20	16	182	86	2.8	YSO
05:31:15.32	+12:03:38.2	0.6	B30-LB31	0.60	0.13	0.9	82	99	2.4	pre-BD

Notes.

^(a)

LABOCA designation number (see BGH16);

^(b)

From BGH16;

^(c)

Percentage of missing flux between ALMA and LABOCA data;

^(d)

From the 2MASS extinction map;

^(*)

Sources with gas emission detected with ALMA;

^(**)

Derived for a dust temperature of 15 K.

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