Star formation sites toward the Galactic center region - The correlation of CH3OH masers, H2O masers, and near-IR green sources

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Volume 563 (March 2014)

A&A, 563 (2014) A68

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Table 1

Association rates of CH₃OH masers with green sources.

Distance	Galactic	CH₃OH	Green source	Association
method	location	masers	associations	rate

Position^a	GC	23	8	34.8 ± 12.3%
	Disk	152	78	51.3 ± 5.8%
Velocity^b	GC	27	13	48.1 ± 13.3%
	Disk	148	73	49.3 ± 5.8%
Both	GC	17	4	23.5 ± 11.8%
	Disk	158	82	51.9 ± 5.7%

Total		175	86	49.1 ± 5.3%

Notes.

^(a)

Based on Galactic coordinates, with |ℓ| < 1.3° and |b| < 10′ defining the GC region (see Sect. 4.1).

^(b)

Based on the velocities of the masers and a model of circular Galactic rotation (see Sect. 4.1).

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