VizieR Online Data Catalog: CO molecular clumps and YSOs in NGC 602 region (O'Neill+, 2022)

The NGC602/N90 region was observed by ALMA project 2016.1.00360.S. A 150 point mosaic was observed with a 48 antenna compact configuration of the 12m array (MOUS uid://A001/X88f/X2a2), for 49 minutes on source on 2016-Dec-30, with a mean precipitable water vapor (PWV) of 1.3mm. A slightly larger region of the sky was observed in a 60 point mosaic using the 7m Atacama Compact Array (ACA) eight times between 2016-Oct-12 and 24, for a total of 416 minutes on source, mostly at a PWV of ~0.5mm. The spectral setup contains three spectral windows with 122.07kHz channels each, centered on the ¹²CO, ¹³CO, and ¹²C¹⁸O J=2-1 transitions. Additionally a 2GHz wide, 128 channel spectral window centered at 232.86GHz was observed. The native spectral channel spacing is 0.17km/s, with a resolution of ¹²CO of 0.184km/s. See Section 2.1.

Two types of YSOs have been analyzed in the N90 region: solar-mass PMS stars identified with high-resolution HST optical and near-IR photometry, and YSO candidates with infrared excess emission attributed to circumstellar dust identified using Spitzer and Herschel Space Telescope (Herschel) data. We revisit these populations here. We used HST F555W (~V) and F814W (~I) observations of N90 reduced by Schmalzl+ (2008, J/ApJ/681/290) to study the distribution of solar-mass PMS stars in the region, as selected by Gouliermis+ 2012ApJ...748...64G. The data from HST GO program 10248 consist of 2156s and 2269s total integration time with the Advanced Camera for Surveys (ACS) Wide Field Camera (WFC) in F555W and F814W, respectively. We also reanalyzed Spitzer-identified intermediate- and high-mass YSO candidates in the region. Carlson+ (2011, J/ApJ/730/78; hereafter C11) combined V, I, J, H, K, Spitzer IRAC 3.6-8.0um, and Spitzer MIPS 24um photometry, using the high-resolution optical data to remove background galaxies. Starting with the C11 combined photometry catalog with galaxies removed, but including sources they classified as stars, we added aperture photometry from the Herschel HERITAGE survey (Meixner+ 2013, J/AJ/146/62 ; Seale+ 2014, J/AJ/148/124) at 100, 160, 250, and 350um using the Spectral and Photometric Imaging Receiver (SPIRE) and Photodetector Array Camera and Spectrometer (PACS). See Section 2.2.

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