J/A+A/476/199 Trumpler 14 JHKL' photometry (Ascenso+, 2007)
NTT and VLT diffraction limited imaging of Trumpler 14:
revealing a massive core-halo cluster.
Ascenso J., Alves J., Vicente, S., Lago M.T.V.T.
<Astron. Astrophys. 476, 199 (2007)>
=2007A&A...476..199A 2007A&A...476..199A
ADC_Keywords: Clusters, open ; Photometry, infrared
Keywords: HII regions - stars: formation - infrared: stars -
open clusters and associations: individual: Trumpler 14
Abstract:
We present the deepest and highest resolution near-infrared imaging to
date of cluster Trumpler 14 in Carina. Our goal is to identify and
characterise the young stellar population of this massive cluster.
We made use of deep and wide-field NIR images from NTT and VLT
observations, that were sensitive enough to detect substellar sources
at the distance to this cluster, and at high enough resolution (VLT
diffraction limited) to fully resolve the core of the cluster crowded
with O stars.
Description:
Photometry for the stars detected with SOFI, NTT, in J, H and Ks and
with NACO, VLT, in J, H, Ks and L' in the field containing the massive
cluster Trumpler 14 associated with the Carina Nebula. For each star
the tables contains an ID, J2000.0 equatorial coordinates, magnitudes
and photometric errors.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
naco.dat 77 178 Positions and NACO JHKL' photometry of stars in Tr14
sofi.dat 77 4739 Positions and SOFI JHK photometry of stars in Tr14
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Note to naco.dat: The sources in the NACO sample that are affected by
anisoplanatism are *not* flagged.
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See also:
J/AJ/105/980 : Stellar content of Tr 14 and Tr 16 (Massey+ 1993)
J/A+AS/116/75 : Region of the open cluster Tr 14 (Vazquez+, 1996)
Byte-by-byte Description of file: naco.dat sofi.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Seq Identification number (1)
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 (2)
37- 41 F5.3 mag e_Jmag ?=9.999 Photometric error in the J band (2)
43- 47 F5.2 mag Hmag ?=99.99 Magnitude in the H band (2)
49- 53 F5.3 mag e_Hmag ?=9.999 Photometric error in the H band (2)
55- 59 F5.2 mag Ksmag ?=99.99 Magnitude in the Ks band (2)
61- 65 F5.3 mag e_Ksmag ?=9.999 Photometric error in the Ks band (2)
67- 71 F5.2 mag L'mag ?=99.99 Magnitude in the L' band (2) (3)
73- 77 F5.3 mag e_L'mag ?=9.999 Photometric error in the L' band (3)
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Note (1): Stars identified in Simbad with the acronyms:
Cl* Trumpler 14 NACO NNN for naco.dat
Cl* Trumpler 14 SOFI NNNN for sofi.dat
Note (2): 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.
Note (3): Only for NACO observations. For SOFI observations, it was set to
99.99 (value) and 9.999 (error).
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Acknowledgements:
Joana Ascenso,
(End) Joana Ascenso [CAUP, Portugal], Patricia Vannier [CDS] 23-Nov-2007