J/A+A/413/1037 J-K DENIS photometry of bright southern stars (Kimeswenger+ 2004)
J-K DENIS photometry of a VLTI-selected sample of bright southern stars.
Kimeswenger S., Lederle C., Richichi A., Percheron I., Paresce F.,
Armsdorfer B., Bacher A., Cabrera-Lavers A.L., Kausch W., Rassia E.,
Schmeja S., Tapken C., Fouque P., Maury A., Epchtein N.
<Astron. Astrophys. 413, 1037 (2004)>
=2004A&A...413.1037K 2004A&A...413.1037K
ADC_Keywords: Stars, bright ; Infrared sources ; Photometry, infrared
Keywords: surveys - infrared: stars - techniques: photometric
Abstract:
We present a photometric survey of bright southern stars carried out
using the DENIS instrument equipped with attenuating filters. The
observations were carried out not using the survey mode of DENIS, but
with individual target pointings. This project was stimulated by the
need to obtain near-infrared photometry of stars to be used in early
commissioning observations of the ESO Very Large Telescope
Interferometer, and in particular to establish a network of bright
calibrator sources. We stress that near-infrared photometry is
peculiarly lacking for many bright stars. These stars are saturated in
2MASS as well as in regular DENIS observations. The only other
observations available for bright infrared stars are those of the Two
Micron Sky Survey (II/2) dating from over thirty years ago. These
were restricted to declinations above -30° and thus cover only
about half of the sky accessible from the VLTI site. We note that the
final 2MASS data release includes photometry of bright stars, obtained
by means of point-spread function fitting. However, this method only
achieves about 30 percent accuracy, which is not sufficient for most
applications.
In this work, we present photometry for over 600 stars, each with at
least one and up to eight measurements, in the J and K filters.
Typical accuracy is at the level of 0.05mag and 0.04mag in the J and
Ks bands, respectively.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 151 602 Main catalogue (average photometric values)
table2.dat 354 602 Catalogue of the individual measurements of the
up to 8 pointings
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See also:
II/2 : Two-Micron Sky Survey (TMSS) (Neugebauer+ 1969)
B/denis : The DENIS database (DENIS Consortium, 2003)
II/240 : The DENIS database first release (Epchtein+, 1999)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Index Index number
5- 25 A21 --- Name Name of the source
27- 28 I2 h RAh Right Ascension J2000 (hours)
30- 31 I2 min RAm Right Ascension J2000 (minutes)
33- 39 F7.4 s RAs Right Ascension J2000 (seconds)
41 A1 --- DE- Declination J2000 (sign)
42- 43 I2 deg DEd Declination J2000 (degrees)
45- 46 I2 arcmin DEm Declination J2000 (minutes)
48- 53 F6.3 arcsec DEs Declination J2000 (seconds)
55- 69 A15 --- IRAS Cross-identification in IRAS catalogue
71- 80 A10 --- IRC Cross-identification in IRC catalogue
82 I1 --- N Number of pointings to target
84- 91 F8.2 d JD-2400000 Mean JD (= JD-2400000) of observation
93- 98 F6.3 mag Ksmag ? Mean Ks magnitude
100 I1 --- o_Ksmag ? Number of K pointings for mean Ks
102-106 F5.3 mag e_Ksmag ? Error of mean Ks magnitude
108-113 F6.3 mag Jmag ? Mean J magnitude
115 I1 --- o_Jmag ? Number of J pointings for mean Ks
117-121 F5.3 mag e_Jmag ? Error of mean J magnitude
123-124 I2 --- Var ? Varibility index (1)
126-130 F5.2 mag Kmag ? K magnitude in IRC catalogue
132-136 A5 --- SpType MK Spectral class from SIMBAD
138-151 A14 --- Rem Remarks
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Note (1): This is an index giving for targets with multiple pointings a
probability for a possible variability. For Var<4 it corresponds
approximately to times σ (for details see section 3.4 in the
paper).
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Index Index number (same as in table1)
5- 25 A21 --- Name Name of the source (same as in table1)
26 I1 --- N number of pointings to target (same as in
table1)
28- 37 F10.4 d JD1-2400000 ? Modified JD (= JD-2400000) of 1. pointing
39- 44 F6.3 mag Ksmag1 ? Ks magnitude of 1. pointing
46- 50 F5.3 mag e_Ksmag1 ? Error of Ks magnitude of 1. pointing
52 I1 --- o_Ksmag1 ? Number of K frames used in 1. pointing
54- 59 F6.3 mag Jmag1 ? J magnitude of 1. pointing
61- 65 F5.3 mag e_Jmag1 ? Error of J magnitude of 1. pointing
67 I1 --- o_Jmag1 ? Number of J frames used in 1. pointing
69- 78 F10.4 d JD2-2400000 ? Modified JD (= JD-2400000) of 2. pointing
80- 85 F6.3 mag Ksmag2 ? Ks magnitude of 2. pointing
87- 91 F5.3 mag e_Ksmag2 ? Error of Ks magnitude of 2. pointing
93 I1 --- o_Ksmag2 ? Number of K frames used in 2. pointing
95-100 F6.3 mag Jmag2 ? J magnitude of 2. pointing
102-106 F5.3 mag e_Jmag2 ? Error of J magnitude of 2. pointing
108 I1 --- o_Jmag2 ? Number of J frames used in 2. pointing
110-119 F10.4 d JD3-2400000 ? Modified JD (= JD-2400000) of 3. pointing
121-126 F6.3 mag Ksmag3 ? Ks magnitude of 3. pointing
128-132 F5.3 mag e_Ksmag3 ? Error of Ks magnitude of 3. pointing
134 I1 --- o_Ksmag3 ? Number of K frames used in 3. pointing
136-141 F6.3 mag Jmag3 ? J magnitude of 3. pointing
143-147 F5.3 mag e_Jmag3 ? Error of J magnitude of 3. pointing
149 I1 --- o_Jmag3 ? Number of J frames used in 3. pointing
151-160 F10.4 d JD4-2400000 ? Modified JD (= JD-2400000) of 4. pointing
162-167 F6.3 mag Ksmag4 ? Ks magnitude of 4. pointing
169-173 F5.3 mag e_Ksmag4 ? Error of Ks magnitude of 4. pointing
175 I1 --- o_Ksmag4 ? Number of K frames used in 4. pointing
177-182 F6.3 mag Jmag4 ? J magnitude of 4. pointing
184-188 F5.3 mag e_Jmag4 ? Error of J magnitude of 4. pointing
190 I1 --- o_Jmag4 ? Number of J frames used in 4. pointing
192-201 F10.4 d JD5-2400000 ? Modified JD (= JD-2400000) of 5. pointing
203-208 F6.3 mag Ksmag5 ? Ks magnitude of 5. pointing
210-214 F5.3 mag e_Ksmag5 ? Error of Ks magnitude of 5. pointing
216 I1 --- o_Ksmag5 ? Number of K frames used in 5. pointing
218-223 F6.3 mag Jmag5 ? J magnitude of 5. pointing
225-229 F5.3 mag e_Jmag5 ? Error of J magnitude of 5. pointing
231 I1 --- o_Jmag5 ? Number of J frames used in 5. pointing
233-242 F10.4 d JD6-2400000 ? Modified JD (= JD-2400000) of 6. pointing
244-249 F6.3 mag Ksmag6 ? Ks magnitude of 6. pointing
251-255 F5.3 mag e_Ksmag6 ? Error of Ks magnitude of 6. pointing
257 I1 --- o_Ksmag6 ? Number of K frames used in 6. pointing
259-264 F6.3 mag Jmag6 ? J magnitude of 6. pointing
266-270 F5.3 mag e_Jmag6 ? Error of J magnitude of 6. pointing
272 I1 --- o_Jmag6 ? Number of J frames used in 6. pointing
274-283 F10.4 d JD7-2400000 ? Modified JD (= JD-2400000) of 7. pointing
285-290 F6.3 mag Ksmag7 ? Ks magnitude of 7. pointing
292-296 F5.3 mag e_Ksmag7 ? Error of Ks magnitude of 7. pointing
298 I1 --- o_Ksmag7 ? Number of K frames used in 7. pointing
300-305 F6.3 mag Jmag7 ? J magnitude of 7. pointing
307-311 F5.3 mag e_Jmag7 ? Error of J magnitude of 7. pointing
313 I1 --- o_Jmag7 ? Number of J frames used in 7. pointing
315-324 F10.4 d JD8-2400000 ? Modified JD (= JD-2400000) of 8. pointing
326-331 F6.3 mag Ksmag8 ? Ks magnitude of 8. pointing
333-337 F5.3 mag e_Ksmag8 ? Error of Ks magnitude of 8. pointing
339 I1 --- o_Ksmag8 ? Number of K frames used in 8. pointing
341-346 F6.3 mag Jmag8 ? J magnitude of 8. pointing
348-352 F5.3 mag e_Jmag8 ? Error of J magnitude of 8. pointing
354 I1 --- o_Jmag8 ? Number of J frames used in 8. pointing
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Acknowledgements: Stefan Kimeswenger
(End) Patricia Bauer [CDS] 16-Oct-2003