VizieR Online Data Catalog: NGC752 abundances from IR spectra (Bocek Topcu+, 2020)
Abstract
We gathered IGRINS H- and K-band high-resolution spectra for the 10 NGC 752 RG members studied in the optical spectral region by Bocek Topcu et al. (2015MNRAS.446.3562B, Cat. J/MNRAS/446/3562). The stars chosen for that paper were selected from the RV membership catalogue of Mermilliod et al. (2008A&A...485..303M, Cat. J/A+A/485/303), before the release of Gaia DR2 astrometric data. The membership analysis presented here confirms that our targets belong to NGC 752. Additionally, several stars not included here appear to be RG members (this study and Twarog, private communication). Future spectroscopic study of these stars would be welcome. The log of the IGRINS observations is given in Table 2 along with the basic parameters of programme stars. These stars are all red giants with similar parameters, as indicated by spectroscopic analyses (Teff~4900K, logg~2.7) and by photometric data [V~9.2, MV1.0, (B-V)0~0.97]. Three other stars with similar photometric characteristics satisfy our NGC 752 membership criteria: BD+37 404 (MMU 2054), BD+36 328 (MMU 1533), and BD+37 422 (MMU 110, HD 11811).
Almost all of the observations were made with IGRINS installed at the Cassegrain focus of the 2.7m Harlan J. Smith Telescope at McDonald Observatory in 2015 December (Mace et al. 2016SPIE.9908E..0CM). One object, MMU 1367, was observed with IGRINS on Lowell Observatory's 4.3m Discovery Channel Telescope (Mace et al. 2018SPIE10702E..0QM). (7 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- February 2023
- Bibcode:
- 2023yCat..74910544B
- Keywords:
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- Stars: giant;
- Clusters: open;
- Abundances;
- Spectra: infrared;
- Radial velocities;
- Proper motions;
- Photometry;
- Optical