Radio emission in ultracool dwarfs: The nearby substellar triple system VHS 1256–1257

J. C. Guirado; R. Azulay; B. Gauza; M. A. Pérez-Torres; R. Rebolo; J. B. Climent; M. R. Zapatero Osorio

doi:10.1051/0004-6361/201732130

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Volume 610 (February 2018)

A&A, 610 (2018) A23

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Table 1

VLA and VLBI observations of VHS 1256–1257.

Telescope/configuration	Epoch	Frequency band	UT range	Beam size	PA	rms	Peak
					[°]	[μJy]	[μJy]
VLA/BnA	15 May 2015	X	05:10–06:10	0.78′′× 0.45′′	−51	3	60
VLA/B	28 Jul 2016	L	00:00–01:00	5.66′′× 3.38′′	−12	7	<21
EVN^a	4 Mar 2016	L	22:30–04:30	3.1 × 2.4 mas	−64	22	<66
"	27 May 2016	"	15:30–23:30	11.9 × 2.2 mas	−78	30	<90
"	2 Nov 2016	"	05:00–13:00	3.2 × 2.3 mas	−73	31	<93

Notes. ^(a) European VLBI Network using the following antennas: Jodrell Bank, Westerbork, Effelsberg, Medicina, Noto, Onsala85, Tianma65, Urumqi, Torun, Zelenchukskaya, Hartebeesthoek, Sardinia, Irbene, and DSS63.

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