Nascent bipolar outflows associated with the first hydrostatic core candidates Barnard 1b-N and 1b-S

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Table 1

Observation parameters.

Molecule	Frequency	Instr.	Config.	Beam	PA	Vel. res.	Int. time^a	T_sys	Noise^b	Obs. date
	GHz			′′	°	km s^-1	h	K	mK

CH₃OH^d	145.1	PdBI	C&D	2.30 × 2.24	128	0.16	8.8/29	160	313	Aug. and Oct. 2013
H₂CO^d	145.6	PdBI	C&D	2.34 × 2.24	108	0.20	8.8/29	160	288	Aug. and Oct. 2013

Molecule	Frequency	Instr.	F_eff	B_eff	Res.	Res.	Int. time^c	T_sys	Noise	Obs. date
	GHz				′′	km s^-1	h	K	mK

CH₃OH	145.1	E150	0.93	0.74	17.9	0.16	14	99	44	Dec. 3rd and 4th, 2013
H₂CO	145.6	E150	0.93	0.74	17.8	0.20	14	99	40	Dec. 3rd and 4th, 2013

Notes. The projection center for all observations is α₂₀₀₀ = 03^h33^m21.300^s, , a position in between B1b-N and B1b-S.

^(a)

Listed as on-source time/telescope time.

^(b)

Evaluated at the mosaic phase center (the noise steeply increases at the mosaic edges after correction for primary beam attenuation).

^(c)

Telescope time.

^(d)

FITS files of the H₂CO and CH₃OH mosaics are available in electronic form at the CDS.

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