VizieR Online Data Catalog: The disintegrating old open cluster Czernik 3 (Sharma+, 2020)
Abstract
Deep NIR J (1.20μm), H (1.65μm), and K (2.19μm) band photometric observations of the Cz3 open cluster were taken during the night of 2017 October 7 using TIFR Near Infrared Imaging Camera-II (TIRCAM2; Naik et al. 2012BASI...40..531N; Baug et al. 2018JAI.....750003B) mounted at the Cassegrain main port of the 3.6m ARIES Devasthal optical telescope (DOT; Kumar et al. 2018BSRSL..87...29K). The weather conditions in these nights were good with a relative humidity of <60 per cent and the full width at half-maximum of the stellar images was ~0.6arcsec. The field of view (FOV) of the TIRCAM2 is ~86.5x86.5arcsec square with a plate scale of 0.169arcsec. We took four pointings of the Cz3 open cluster covering the central cluster region (~3arcmin square) and in each pointing several frames in a five-point dither pattern were taken with exposure times of 50, 50, and 10 s in the J, H, and K bands, respectively. The total exposure times were 500, 500, and 1000s in each pointing in the J, H, and K bands, respectively. Dark and sky flats were also taken during the observations. Sky frames in each filter were generated from the median of the dithered frames.
In order to study a wider area around Cz3, we have selected an FOV of 10x10arcmin square and downloaded the available data from Gaia DR2 (Gaia Collaboration 2018A&A...616A...1G, Cat. I/345), Pan-STARRS1 (Chambers et al. 2016arXiv161205560C, Cat. II/349) and 2MASS (Cutri et al. 2003yCat.2246....0C, Cat. II/246). (2 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- August 2023
- Bibcode:
- 2023yCat..74982309S
- Keywords:
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- Clusters: open;
- Populations: stellar;
- Positional data;
- Parallaxes: trigonometric;
- Proper motions;
- Photometry;
- Optical;
- Infrared