J/A+A/493/1075 JKs photometry of C stars in 2 nearby galaxies (Battinelli+ 2009)
Assessment of the near infrared identification of carbon stars.
II. The local group galaxies IC 1613 and NGC 3109.
Battinelli P., Demers S.
<Astron. Astrophys., 493, 1075-1080 (2009)>
=2009A&A...493.1075B 2009A&A...493.1075B
ADC_Keywords: Stars, carbon ; Photometry, infrared
Keywords: stars: AGB and post-AGB - stars: carbon - galaxies: dwarf
Abstract:
Thousands of C stars have been identified in Local Group galaxies
using narrow band photometry. To survey C stars at larger distances
and alternative to the narrow-band approach is needed.
We obtain, from ESO Archive data, NIR magnitudes and colours of
previously known C stars in two dwarf irregular Local Group galaxies,
namely IC 1613 and NGC 3109.
We compare the NIR magnitudes and colours of the C star populations,
previously identified from narrow band techniques to estimate the star
formation history of their intermediate-age populations.
Description:
The J and Ks observations of IC 1613 were obtained from the ESO
Archive. They consist of NTT data, from La Silla, obtained with the
SOFI near infrared camera in September 2004 as part of the Araucaria
Cepheid project (Pietrzynski et al., 2006ApJ...642..216P 2006ApJ...642..216P).
The NGC 3109 images are also extracted from the ESO Archives. They
were obtained with ISAAC at the VLT (Soszynski et al., Cat.
J/ApJ/648/375) as part of the Araucaria project.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 52 61 NIR magnitudes and colours of C stars in IC 1613
table3.dat 52 157 NIR magnitudes and colours of C stars in NGC 3109
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See also:
J/AJ/119/2780 : C stars in IC 1613 (Albert+, 2000)
J/AcA/51/221 : OGLE-II. Cepheids in IC 1613 (Udalski+, 2001)
J/A+A/445/901 : BV(RI)c bands of Cepheids in IC 1613 (Antonello+, 2006)
J/A+A/410/795 : Photometry of NGC 3109 carbon stars (Demers+, 2003)
J/ApJ/648/366 : Araucaria: NGC 3109 Cepheids VI phot. (Pietrzynski+, 2006)
J/ApJ/648/375 : Araucaria: NGC 3109 Cepheids JK phot. (Soszynski+, 2006)
Byte-by-byte Description of file: table2.dat table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Sequential number (1)
5- 6 I2 h RAh Right ascension (J2000)
8- 9 I2 min RAm Right ascension (J2000)
11- 15 F5.2 s RAs Right ascension (J2000)
17 A1 --- DE- Declination sign (J2000)
18- 19 I2 deg DEd Declination (J2000)
21- 22 I2 arcmin DEm Declination (J2000)
24- 27 F4.1 arcsec DEs Declination (J2000)
29- 34 F6.3 mag Ksmag Ks magnitude
36- 40 F5.3 mag e_Ksmag rms uncertainty on Ksmag
42- 46 F5.3 mag J-Ks J-Ks colour index
48- 52 F5.3 mag e_J-Ks rms uncertainty on J-Ks
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Note (1): Stars identified in Simbad as
[ADK2000] NNN for table2 (Albert et al., Cat. J/AJ/119/2780) and
[DBL2003b] NNN for table3 (Demers et al., Cat. J/A+A/410/795)
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History:
From electronic version of the journal
References:
Battinelli et al., Paper I 2007A&A...474...35B 2007A&A...474...35B
(End) Patricia Vannier [CDS] 09-Mar-2009