The HI/OH/Recombination line survey of the inner Milky Way (THOR) - Survey overview and data release 1

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Volume 595 (November 2016)

A&A, 595 (2016) A32

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Table 2

Angular resolution, rms noise (both for THOR-only data), and data products.

Band	θ ^a	rms	Data products^a
	(′′)

HI	15.9′′ × 12.8′′ to 19.9′′ × 14.2′′	12^b	THOR only with & without cont., THOR merged with VGPS continuum-subtracted
OH1	13.5′′ × 13.2′′ to 18.7′′ × 12.5′′	10^c	continuum-subtracted, native resolution and 20′′ smoothed
OH2/3	13.1′′ × 12.9′′ to 18.1′′ × 12.1′′	10^c	continuum-subtracted, native resolution and 20′′ smoothed
OH4	12.7′′ × 12.4′′ to 17.6′′ × 11.8′′	10^c	continuum-subtracted, native resolution and 20′′ smoothed
cont1	16.5′′ × 15.7′′ to 24.4′′ × 15.1′′	1.1^d	native resolution and 25′′ smoothed
cont3	13.1′′ × 12.3′′ to 19.7′′ × 12.5′′	0.7^d	native resolution and 25′′ smoothed
cont4	12.6′′ × 11.9′′ to 18.1′′ × 11.1′′	0.6^d	native resolution and 25′′ smoothed
cont6	10.5′′ × 9.9′′ to 15.4′′ × 9.1′′	0.6^d	native resolution and 25′′ smoothed
cont7	10.0′′ × 9.7′′ to 14.5′′ × 8.9′′	0.5^d	native resolution and 25′′ smoothed
cont8	9.0′′ × 8.3′′ to 13.1′′ × 8.1′′	0.7^d	native resolution and 25′′ smoothed
Hnα	40′′	3^e	stacked images with 10 km s^-1 and 40′′ resolution
			for all products also calibrated visibilities

Notes. This data release 1 contains the data of the first half of the survey. The remaining data will follow after the ongoing calibration and imaging process.

^(a)

The synthesized beams depend on Galactic longitude.

^(b)

rms per channel after smoothing to a uniform beam of 21′′ × 21′′.

^(c)

rms per channel after smoothing to a uniform beam of 20′′ × 20′′.

^(d)

This is the rms in a emission-free region. Considering side-lobe noise, 90% of the whole coverage is below ~1.6 mJy beam^-1 (Bihr et al. 2016).

^(e)

After smoothing to 40′′ in 10 km s^-1 channels of stacked maps.

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