Modeling the physical and excitation conditions of the molecular envelope of NGC 7027

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Table 3

Best-fit model parameters for the high-velocity polar blobs of NGC 7027.

Blob section	d _off ^†	r ^‡	h ^⋆	V ^*	X(¹²CO)	n	T
	(10¹⁶ cm)	(10¹⁶ cm)	(10¹⁶ cm)	(km s^-1)		(cm^-3)	(K)

Inner	4.5
Outer	7.65

Notes. The sizes correspond to a distance to the nebula of 1 kpc. The uncertainty range is included for every parameter except the distance of the structure to the central star, which is assumed a priori based on existing maps. The X(¹³CO) abundances are 50 times lower than their X(¹²CO) counterparts.

^(†)

Distance from the star to the center of mass of the given cylindrical section.

^(⋆)

Radius of the cylinder.

^(‡)

Height of the cylindrical section.

^(*)

Velocity of the cylindrical section along the main axis of the nebula.

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