Photometry of AGB stars in NGC 185 and NGC 147 (Nowotny+, 2003)

Details Photometry of AGB stars in NGC 185 and NGC 147 (Nowotny+, 2003) Photometry of AGB stars in NGC 185 and NGC 147 (Nowotny+, 2003)

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ycat..34030093n&link_type=abstract

VizieR On-line Data Catalog: J/A+A/403/93. Originally published in: 2003A&A...403...93N

Physics

Galaxies: Photometry, Stars: Giant, Stars: Carbon

Scientific paper

The tables represent results of an ongoing photometric survey of Local Group galaxies, using a four filter technique based on the method of Wing (1971, Proc. of the Conference on Late-Type Stars, ed. G.W. Lockwood and H.M. Dyck, KPNO Contribution 554, 145) to identify and characterise the late-type stellar content. Two narrow band filters centred on spectral features of TiO and CN allow us to distinguish between AGB stars of different chemistries [M-type (O-rich) and C-type (C-rich)]. The major parts of two dwarf galaxies, NGC 185 and NGC 147, were observed; 154 new AGB carbon stars in NGC 185 and 146 in NGC 147 were identified.
All detected stars (called sample 1 in the paper) are included in the tables, with coordinates and photometric properties. All stars of sample 1 have photometry in the filters V and i. For all stars, which are in addition included in the smaller sample 2 (and have also photometry in the narrowband filters TiO and CN) the colour index (TiO-CN) is provided, too.
In the tables a chemistry flag F marks in which classification group the star falls. All stars of sample 2 can have "c" for Carbon star, "o" for oxygen-rich M-type star or "r" for the rest. This correspond to the selection areas in Figure 4 of the paper. The flag for all stars of sample 1, which are not already included in sample 2 (only Vi-photometry) is "u" for unclassified.
(2 data files).

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