The dynamical state of the first hydrostatic core candidate Chamaeleon-MMS1

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Table 2

Parameters of 2011 APEX observations.

Transition	f ^a	σ _ν ^b	HPBW ^c	Receiver	Backend	δf ^d	δV ^e	N _pos ^f	F _eff ^g	B _eff ^g	T _sys ^h	rmsⁱ
	(MHz)	(kHz)	(′′)			(kHz)	(km s^-1)		(%)	(%)	(K)	(mK)

C¹⁸O 2−1	219 560.3541	1.5	27.7	APEX-1 SSB	XFFTS2	76	0.104	13	95	75	232−240	136−195
C¹⁷O 2−1	224 714.1870	80	27.1	APEX-1 SSB	XFFTS2	76	0.101	13	95	75	200−217	87−99
CS 5−4	244 935.5565	2.8	24.9	APEX-1 SSB	XFFTS2	76	0.093	5	95	75	215−420	23−25
H¹³CO⁺ 3−2	260 255.3390	9.7	23.4	APEX-1 SSB	XFFTS2	76	0.088	13	95	74	250−262	63−75
HCO⁺ 3−2	267 557.6259	1.1	22.8	APEX-2 SSB	FFTS1	122	0.137	13	95	74	200−306	120−152
H¹³CO⁺ 4−3	346 998.3440	11.9	17.5	FLASH345 2SB	XFFTS	76	0.066	5	95	73	280−305	48−53
CO 4−3	461 040.7682	0.5	13.2	FLASH460 DSB	AFFTS	183	0.119	5	95	60	1083−1288	234−360

Notes.

^(a)

Rest frequency taken from the CDMS catalogue. The frequencies given here for the H¹³CO⁺ 3−2 and 4−3 transitions do not account for their hyperfine structure. See the CDMS catalogue for the specific frequencies corresponding to each hyperfine structure component of the transitions.

^(b)

Frequency uncertainty taken from the CDMS catalogue.

^(c)

Angular resolution.

^(d)

Channel spacing in frequency.

^(e)

Channel spacing in velocity.

^(f)

Number of observed positions.

^(g)

Forward and main-beam efficiencies.

^(h)

System temperature.

⁽ⁱ⁾

rms sensitivity in scale.

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