VizieR Online Data Catalog: ATOMS II Compact objects in ACA observations (Liu+, 2020)
Abstract
The ALMA observations of the 'ATOMS' survey have been summarized in Liu et al. (2020MNRAS.496.2790, Cat. J/MNRAS/496/2790). We here briefly introduce the observations with the ACA. Observations with the ACA were conducted from late September to mid November in 2019 with band 3 (Project ID: 2019.1.00685.S; PI: Tie Liu). The IRAS names, phase centers, systemic velocities, distances, and galactocentric distances of the targeted sources are listed in Table A1. The typical ACA observing time per source is ~8min. The angular resolution and maximum recovered angular scale (MRS) in ACA observations are ~13.1-13.8arcsec and ~53.8-76.2arcsec, respectively. The ACA observations are sensitive to angular scales smaller than ~60arcsec but the MRS is larger than the angular sizes of most clumps in the sample (Faundez et al. 2004A&A...426...97F, Cat. J/A+A/426/97). The J=1-0 transitions of HCN, HCO+, H13CN, and H13CO+ are included in four spectral windows in the lower side-band. The spectral resolution for HCN J=1-0 and HCO+ J=1-0 is 61.035kHz (or ~0.2km/s), while the spectral resolution for H13CN J=1-0 and H13CO+ J=1-0 is 0.122MHz (or ~0.4km/s). The continuum visibility data are constructed using the line-free spectral channels. All images are primary beam corrected. The achieved sensitivity of the ACA observations is around 50-90mJy/beam per 0.122MHz channel for lines.
(6 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- July 2023
- Bibcode:
- 2023yCat..74962821L
- Keywords:
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- Star Forming Region;
- Interstellar medium;
- Molecular clouds;
- Milky Way;
- Radio sources