Direct evidence of multiple reservoirs of volatile nitrogen in a protosolar nebula analogue

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Table 1

Results of the uv-plane analysis (see the text for details) using visibilities within a uv radius of 60 m.

	Center position		FWHM (′′)		Area	Flux^§
	δRA (′′)	δDec (′′)	major	minor	arcsec²	Jy km s^-1

CN	–0.65(1)	–0.13(1)	2.55(2)	2.54(2)	7.33(8)	2.02(2)
C¹⁵N^†	–0.65(0)	–0.13(0)	2.55(0)	2.54(0)	7.33(0)	0.166(13)
C¹⁵N^‡	–0.71(11)	–0.05(12)	2.46(35)	2.13(33)	5.93(126)	0.150(20)

Notes. The center of the 2D-Gaussian is given with respect to the phase center position at RA, Dec coordinates 11^h01^m51.875^s,34°42′17.16′′ (J2000). Number in brackets are uncertainties in units of the last digit.

^(§)

Fluxes integrated over the CN(3 7/2 5/2 → 2 5/2 5/2) and the two C¹⁵N(3 7/2 → 2 5/2) transitions. The quoted uncertainty does not include the calibration uncertainty (3%).

^(†)

uv-fit results with fixed, circular, Gaussian disk taken from the CN fit.

^(‡)

uv-fit results without imposing the size of the Gaussian disk.

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