Chemical evolution in the early phases of massive star formation - II. Deuteration

T. Gerner; Y. L. Shirley; H. Beuther; D. Semenov; H. Linz; T. Albertsson; Th. Henning

doi:10.1051/0004-6361/201423989

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Volume 579 (July 2015)

A&A, 579 (2015) A80

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Table A.5

Parameters of the best-fit HMPO model.

Parameter	Symbol	Model

Inner radius	r₀	103 AU
Outer radius	r₁	0.5 pc^a
Density at the inner radius	ρ₀	1.5 × 10⁹ cm^-3
Average density with a beam of 21 700 AU		1.6 × 10⁶ cm^-3
Average density with a beam of 57 300 AU		3.7 × 10⁵ cm^-3
Density profile	p	1.8
Temperature at the inner radius	T₀	75.8 K
Average temperature		21.5 K
Temperature profile	q	0.4
Lifetime		32 000 yr

Notes.

^(a)

This value is limited by the largest 29″ IRAM beam size used in our observations.

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