J/other/ChA+A/28.308 JHK' photometry in GGD 12-15 region (Fang+, 2004)
Near infrared observations of the star formation region GGD 12-15.
Fang M., Yao Y.-Q.
<Chinese Astron., 28, 308-322 (2004)>
=2004ChA&A..28..308F 2004ChA&A..28..308F
ADC_Keywords: Clusters, open ; Photometry, infrared
Keywords: infrared: stars - Galaxy: open clusters and associations: GGD1215 -
stars: formation
Abstract:
Near infrared imaging observations in JHK broad bands and
H2 v=1-0 S(1) narrow band of the star formation region GGD12-15 are
presented in this article. The images reveal young compact infrared
clusters and infrared nebulae in association with infrared sources, as
well as outflow activities characterized by H2 emission knots. Most
of the infrared point sources are invisible in the optical wave band.
The JHK' photometric results of 76 infrared point sources contain 32
with infrared excess, and 5 with the characteristics of protostars,
indicating very active star formation activities in the molecular
clouds.
Description:
GGD12-15 was observed with the 1.88-m telescope and OASIS infrared
camera of Institute of Astrophysics of Okayama in Japan on 1999
November 2.
Objects:
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RA (2000) DE Designation(s)
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06 10 51.0 -06 11 54 GGD 12-15 = [BDB2003] G213.88-11.83
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 29 76 Photometric results of infrared point sources
in the GGD12-15 region
table2.dat 25 30 The deeply-embedded infrared point sources in
the GGD12-15 region
table3.dat 25 14 The H2 molecular line emission knots in
the GGD12-15 region
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Byte-by-byte Description of file: table[12].dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- NIRS Sequential number (1)
4- 9 F6.1 arcsec DRA Offset in right ascension (G1)
11- 16 F6.1 arcsec DDE Offset in declination (G1)
18- 21 F4.1 mag K'mag K' magnitude
23- 25 F3.1 mag H-K' ?=- H-K' colour index
27- 29 F3.1 mag J-H ? J-H colour index
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Note (1): Table1: [FY2004] NIRS NN in Simbad
Table2: [FY2004] NIRSe NN in Simbad
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- H2 H2 knot sequential number,
[FY2004] H2 NN in Simbad
4- 8 F5.1 arcsec DRA Offset in right ascension (G1)
10- 14 F5.1 arcsec DDE Offset in declination (G1)
16- 19 F4.1 10-16W/m2/um Fv1-0 Flux in H2 v=1-0 S(1) band (2.12µm)
21- 23 F3.1 arcsec Aper Aperture used in measurement of the
hydrogen molecular emission
25 A1 --- Conf [EK] Configuration (1)
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Note (1): Configuration as follows:
K = H2 knot
E = elongation
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Global notes
Note (G1): The origin of the offset is the position of NIRS3
RA = 06 08 23.72, DE=-06 11 13.8, B1950
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 24-Aug-2005