J/A+A/466/137 Westerlund 2 JHKs photometry (Ascenso+, 2007)
Near-infrared imaging of Galactic massive clusters: Westerlund 2.
Ascenso J., Alves J., Beletsky Y., Lago M.T.V.T.
<Astron. Astrophys. 466, 137 (2007)>
=2007A&A...466..137A 2007A&A...466..137A
ADC_Keywords: H II regions ; Clusters, open ; Photometry, infrared
Keywords: open clusters and associations: individual: Westerlund 2 -
stars: pre-main sequence - infrared: stars
Description:
Photometry for the stars detected with SOFI, NTT in J, H and Ks in the
field containing the massive cluster Westerlund 2 (also know as RCW 49)
associated with the HII region Gum29. For each star detected in all
three bands the table contains the ID, equatorial coordinates, J, H
and Ks magnitude and photometric errors. For the stars detected only
in Ks or in H and Ks the magnitude and photometric error fields in the
absent bands are filled with the values 99.99 and 9.999 respectively.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
w2phot.dat 65 5727 Positions and magnitudes of stars in Westerlund 2
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Byte-by-byte Description of file: w2phot.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq [1/5727] Identification number
6- 7 I2 h RAh Right ascension (J2000.0)
9- 10 I2 min RAm Right ascension (J2000.0)
12- 16 F5.2 s RAs Right ascension (J2000.0)
18 A1 --- DE- Declination sign (J2000.0)
19- 20 I2 deg DEd Declination (J2000.0)
22- 23 I2 arcmin DEm Declination (J2000.0)
25- 29 F5.2 arcsec DEs Declination (J2000.0)
31- 35 F5.2 mag Jmag ?=99.99 Magnitude in the J band (1)
37- 41 F5.3 mag e_Jmag ?=9.999 Photometric error in the J band (1)
43- 47 F5.2 mag Hmag ?=99.99 Magnitude in the H band (1)
49- 53 F5.3 mag e_Hmag ?=9.999 Photometric error in the h band (1)
55- 59 F5.2 mag Ksmag ?=99.99 Magnitude in the Ks band (1)
61- 65 F5.3 mag e_Ksmag ?=9.999 Photometric error in the Ks band (1)
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Note (1): The values 99.99 for the magnitude and 9.999 for the errors
correspond to sources for which we do not have photometry in the
corresponding band.
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Acknowledgements:
Joana Ascenso, joanasba(at)astro.up.pt
History:
* 03-Apr-2007: On-line version
* 17-Jul-2012: J and Ks magnitudes were inverted, corrected now in
the table (from author)
(End) Joana Ascenso [CAUP, Portugal], Patricia Vannier [CDS] 25-Jan-2007