J/A+A/330/990 VRIJHK photometry of the Serpens cloud core (Giovannetti+ 1998)
Deep optical and near infrared imaging photometry of the Serpens cloud core
Giovannetti P., Caux E., Nadeau D., Monin J.-L.
<Astron. Astrophys. 330, 990 (1998)>
=1998A&A...330..990G 1998A&A...330..990G (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, open ; Stars, pre-main sequence ; Photometry, infrared
Keywords: stars: pre-main sequence - ISM: open clusters: Serpens cloud -
stars: luminosity function - infrared: stars - star formation
Abstract:
We present results from a deep optical (VRI) and near infrared (JHK)
survey of the central part of the Serpens molecular cloud. A total of
138 sources were detected in the 19 arcmin2 surveyed area down to a
limiting magnitude of 16.3 in K. We find that the form of the observed
K Luminosity Function (KLF) of stars belonging to the Serpens
Molecular cloud is consistent with that predicted from a Miller &
Scalo (1979ApJS...41..513M 1979ApJS...41..513M) Interstellar Mass Function (IMF). We have
investigated the KLF evolution with the age of a cluster by modeling
KLFs of hypothetical clusters. Our results suggest that two phases of
star formation could have taken place in the Serpens core.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2 109 165 Log of observations
table2.tex 123 219 Latex version of table2
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Byte-by-byte Description of file: table2
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Bytes Format Units Label Explanations
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1- 3 I3 --- Name Sequential object number
4 A1 --- n_Name [S] S: Serpens cloud members
6- 7 I2 h RAh Right ascension (1950)
9- 10 I2 min RAm Right ascension (1950)
12- 15 F4.1 s RAs Right ascension (1950)
16 A1 --- DE- Declination sign
17- 18 I2 deg DEd Declination (1950)
20- 21 I2 arcmin DEm Declination (1950)
23- 24 I2 arcsec DEs Declination (1950)
26- 27 A2 --- n_Vmag Note on Vmag (1)
29- 32 F4.1 mag Vmag ? V magnitude
34- 37 F4.2 mag e_Vmag ? 3 σ uncertainty on Vmag
39- 40 A2 --- n_Rmag Note on Rmag (1)
42- 45 F4.1 mag Rmag ? R magnitude
47- 50 F4.2 mag e_Rmag ? 3 σ uncertainty on Rmag
52- 53 A2 --- n_Imag Note on Imag (1)
55- 58 F4.1 mag Imag ? I magnitude
60- 63 F4.2 mag e_Imag ? 3 σ uncertainty on Imag
65- 66 A2 --- n_Jmag Note on Jmag (1)
68- 71 F4.1 mag Jmag ? J magnitude
73- 76 F4.2 mag e_Jmag ? 3 σ uncertainty on Jmag
78- 79 A2 --- n_Hmag Note on Hmag (1)
81- 84 F4.1 mag Hmag ? H magnitude
86- 89 F4.2 mag e_Hmag ? 3 σ uncertainty on Hmag
91- 92 A2 --- n_Kmag Note on Kmag (1)
94- 97 F4.1 mag Kmag ? K magnitude
99-102 F4.2 mag e_Kmag ? 3 σ uncertainty on Kmag
104-109 A6 --- Other Other identification (2)
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Note (1): x: Regions of the sky that were not observed in the concerned
photometric band
nd: Sources that were not detected
Note (2): CK: Churchwell and Koornneef (1986ApJ...300..729C 1986ApJ...300..729C)
EC: Eiroa and Casali (1992A&A...262..468E 1992A&A...262..468E)
GEL: Gomez de Castro et al. (1988A&A...201..299G 1988A&A...201..299G)
HCE: Horrobin et al. (1997A&A...320L..41H 1997A&A...320L..41H)
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Acknowledgements: Philippe Giovannetti
(End) Patricia Bauer [CDS] 04-Sep-1997