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Table 1

Line spectroscopic parameters, results of the visibility fits, and results of the first-order moment fits.

Line 51−42  νt = 0  E1 10−21  νt = 1  E1

νa (GHz) 216.945 600 93.196 670
Eup (K) 55.9 309.9

RA offsetb (′′) −0.06 ± 0.02 −0.27 ± 0.05
Dec offset (′′) 0.00 ± 0.02 0.06 ± 0.05
Sizec (′′) 0.44 ± 0.03 0.59 ± 0.11

Ipeakd (mJy beam-1) 457 ± 21 24 ± 5
Linewidthe (km s-1) 3.30 ± 0.04 4.10 ± 0.07
I  dvf (Jy beam-1 km s-1) 1.61 ± 0.02 0.11 ± 0.01

v0g (km s-1) 6.54 ± 0.03 6.76 ± 0.15
αh (°) 107 ± 27 131 ± 36
Gi (km s-1 /″) 0.23 ± 0.11 0.47 ± 0.29

Notes.

(a)

Frequencies are from the CDMS catalog (Müller et al. 2001).

(b)

Position of the emission peak, as determined from the visibility fit. Offsets are relative to the continuum position of MM1 (; ; Codella et al. 2014).

(c)

Deconvolved source FWHM size, assuming a circular Gaussian brightness.

(d)

Line peak intensity at the position of 1 mm line emission peak.

(e)

Line FWHM.

(f)

Line integrated intensity.

(g)

Velocity at the position of MM1, obtained from a fit of the first-order moment map.

(h)

Position angle of the velocity gradient, from N to E.

(i)

Velocity gradient amplitude.

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