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J/A+A/474/35     JKs photometry of C stars in IC10 and WLM   (Battinelli+, 2007)

The assessment of the near infrared identification of carbon stars. I. The Local Group galaxies WLM, IC 10 and NGC 6822. Battinelli P., Demers S., Mannucci F. <Astron. Astrophys., 474, 35-41 (2007)> =2007A&A...474...35B (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, nearby ; Stars, carbon ; Photometry, infrared Keywords: galaxies: individual: IC 10 - galaxies: individual: WLM - galaxies: individual: NGC 6822 - stars: carbon - stars: AGB and post-AGB - galaxies: dwarf Abstract: The selection of AGB C and M stars from NIR colours has been done in recent years using adjustable criteria that are in needs of standardization if one wants to compare, in a coherent manner, properties of various populations. We intend to assess the NIR colour technique to identify C and M stars. We compare the NIR colours of several C stars previously identified from spectroscopy or narrow band techniques in WLM, IC 10 and NGC 6822. We demonstrate that very few M stars have (J-K)0>1.4 but a non negligible number of C stars are bluer than this limit. Thus, counts of M and C stars based on such limit do not produce pure samples. C/M ratios determined from NIR colours must be regarded as underestimates mainly because the M numbers include many warm C stars and also K stars if no blue limit is considered. Description: The J,H,Kp observations were secured with NICS (Near Infrared Camera Spectrometer) installed at the Nasmyth focus of the TNG (Telescopio Nazionale Galileo) on the island of La Palma. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 59 62 Known C stars in the WLM NICS field table3.dat 59 52 Known C stars in the IC 10 NICS field
See also: J/A+A/416/111 : C stars in Wolf-Lundmark-Melotte galaxy (Battinelli+, 2004) J/A+A/424/125 : Carbon stars in IC10 (Demers+, 2004) J/A+A/466/501 : JKs photometry of WLM galaxy carbon stars (Valcheva+, 2007) J/A+A/493/1075 : JKs photometry of IC1613 & NGC3109 C stars (Battinelli+ 2009) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [BD2004a] Sequential number from Battinelli & Demers, 2004, Cat. J/A+A/416/111 5- 10 F6.3 mag Imag I magnitude 12- 16 F5.3 mag R-I R-I colour index 18- 22 F5.3 mag CN-TiO CN-TiO index 24- 29 F6.3 mag Ksmag Ks magnitude 31- 35 F5.3 mag e_Ksmag rms uncertainty on Ksmag 37- 41 F5.3 mag J-Ks J-Ks colour index 43- 47 F5.3 mag e_J-Ks rms uncertainty on J-Ks 49- 53 F5.3 mag H-Ks H-Ks colour index 55- 59 F5.3 mag e_H-Ks rms uncertainty on H-Ks
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 3 I3 --- [DBL2004] Sequential number from Demers et al., 2004, Cat. J/A+A/424/125 5- 10 F6.3 mag I0mag Dereddened I magnitude 12- 16 F5.3 mag (R-I)0 Dereddened R-I colour index 18- 22 F5.3 mag CN-TiO CN-TiO index 24- 29 F6.3 mag Ksmag Ks magnitude 31- 35 F5.3 mag e_Ksmag rms uncertainty on Ksmag 37- 41 F5.3 mag J-Ks J-Ks colour index 43- 47 F5.3 mag e_J-Ks rms uncertainty on J-Ks 49- 53 F5.3 mag H-Ks H-Ks colour index 55- 59 F5.3 mag e_H-Ks rms uncertainty on H-Ks
History: From electronic version of the journal References: Battinelli & Demers, Paper II 2009A&A...493.1075B, Cat. J/A+A/493/1075
(End) Patricia Vannier [CDS] 05-Feb-2018
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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