J/A+AS/131/209 JHK(L') photometry of giant stars (Alonso+ 1998)
Broad-band JHK(L') photometry of a sample of giants with 0.5>[Fe/H]>-3
Alonso A., Arribas S., Martinez-Roger C.
<Astron. Astrophys. Suppl. Ser. 131, 209 (1998)>
=1998A&AS..131..209A 1998A&AS..131..209A (SIMBAD/NED BibCode)
ADC_Keywords: Stars, giant ; Photometry, infrared
Keywords: stars: Population II - infrared: stars - stars: general -
stars: fundamental parameters
Abstract:
We present the results of a three-year campaign of broad-band
photometry in the near-infrared J, H, K and L' bands for a sample of
approximately 250 giant stars carried out at the Observatorio del
Teide (Tenerife, Spain). Transformations of the Telescopio Carlos
Sanchez system into/from several currently used infrared systems are
extended to the redward part of the colour axis. The linearity of our
photometric system in the range -3mag<K<10.5mag is inferred from the
intercomparison of data of stars common to this and other photometric
systems. A preliminary assessment of the photometric extinction
profile of the Observatorio del Teide in JHKL' is also provided.
These observations are a continuation of a programme aimed towards the
progressive completion of a whole grid of Teff-[Fe/H]-log(g)-colour
relations for population I and II stars. The analysis of optical and
IR colour-colour diagrams reveals that the range F0III-K5III is well
sampled for 0.5>[Fe/H]>-3. Data of comparable quality previously
published have been added to the sample in order to increase the
reliability of the relations to be obtained. We also provide mean IR
colours for giant stars according to spectral type.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 102 40 Infrared photometric magnitudes of the calibrating
stars measured at the Observatorio del Teide
(Carlos Sanchez Telescope; TCS) during this
programme of observations.
table2.dat 79 267 Photometric data measured with the Carlos Sanchez
Telescope (TCS) at the Observatorio del Teide.
table3.dat 10 59 *Normalized filter transmission for L' band, where the
sensitivity of the InSb detector has been included.
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Note on table3.dat: The transmission was obtained by averaging different
measurements ranging typical operating temperatures (from 77K to 56K).
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See also:
J/A+AS/107/365 : Dwarfs and subdwarfs IR photometry (Alonso+, 1994)
J/A+AS/117/227 : Dwarf effective temperatures (Alonso+ 1996)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Name BS (Cat. V/50) or SAO (Cat. I/131) name
12- 17 F6.3 mag Jmag J magnitude
19- 23 F5.3 mag e_Jmag rms uncertainty on Jmag
25- 27 I3 --- o_Jmag Number of observations in Jmag
28 A1 --- --- [+]
29- 31 I3 --- o2_Jmag ? Number of observations in Jmag
33- 38 F6.3 mag Hmag ?=99.99 H magnitude
40- 44 F5.3 mag e_Hmag rms uncertainty on Hmag
46- 48 I3 --- o_Hmag Number of observations in Hmag
49 A1 --- --- [+]
50- 52 I3 --- o2_Hmag ? Number of observations in Hmag
54- 59 F6.3 mag Kmag K magnitude
61- 65 F5.3 mag e_Kmag rms uncertainty on Kmag
67- 69 I3 --- o_Kmag Number of observations in Kmag
70 A1 --- --- [+]
71- 73 I3 --- o2_Kmag ? Number of observations in Kmag
75- 79 F5.3 mag L'mag ? L' magnitude
81- 85 F5.3 mag e_L'mag ? rms uncertainty on L'mag
87- 88 I2 --- o_L'mag ? Number of observations in L'mag
89 A1 --- --- [+]
90- 91 I2 --- o2_L'mag ? Number of observations in L'mag
93-102 A10 --- SpType Spectral type
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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- 12 A12 --- Name Star name
13 I1 --- n_Name [1/7]? Note on Name (1)
15- 20 F6.3 mag Jmag J magnitude
22- 26 F5.3 mag e_Jmag ? rms uncertainty on Jmag
28- 29 I2 --- o_Jmag ? Number of observations in Jmag
31- 36 F6.3 mag Hmag ? H magnitude
38- 42 F5.3 mag e_Hmag ? rms uncertainty on Hmag
44 I1 --- o_Hmag ? Number of observations in Hmag
46- 51 F6.3 mag Kmag K magnitude
53- 57 F5.3 mag e_Kmag ? rms uncertainty on Kmag
59- 60 I2 --- o_Kmag ? Number of observations in Kmag
62- 66 F5.2 mag L'mag ? L' magnitude
68- 71 F4.2 mag e_L'mag ? rms uncertainty on L'mag
73 I1 --- o_L'mag ? Number of observations in L'mag
75- 79 A5 --- SpType Spectral type
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Note (1): 1: Variable: V352 Aur
2: Variable ?
3: Binary system separated 4.5"
4: Binary system
5: Variable ?
6: Misidentification ?
7: Unidentified star measured in the field of SAO 144547
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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- 4 I4 nm Lambda Wavelength
6- 10 F5.3 --- T [0,1] Normalized transmission.
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History: Prepared via OCR at CDS.
(End) Patricia Bauer [CDS] 15-Jun-1998