Rotationally-supported disks around Class I sources in Taurus: disk formation constraints

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Table 1

Noise levels and beam sizes.

		Continuum			Lines

Weighting	Beam	RMS_th^a	RMS_cl^b	RMS_th	¹³CO RMS_cl	C¹⁸O RMS_cl
	size (PA)	[mJy beam^-1]		[mJy beam^-1 channel^-1]

TMC1A (TMR1)
Natural	1.3″ × 0.7″ (16°)	0.12	3 (0.6)	24	30 (30)	20 (20)
Uniform	0.8″ × 0.7″ (177°)	0.13	3 (0.6)	26	30 (29)	19 (20)

L1536 (TMC1)
Natural	0.7″ × 0.5″ (36°)	0.14	1 (0.2)	26	20 (26)	18 (18)
Uniform	0.6″ × 0.5″ (55°)	0.13	1 (0.2)	29	20 (24)	18 (18)

Notes.

^(a)

Theoretical noise (RMS)

^(b)

Peak of cleaned map noise for TMC1A or L1536. TMR1 or TMC1 cleaned noise is in parentheses. The cleaned noise toward TMR1 and TMC1 are significantly lower due to weaker total continuum flux.

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