J/MNRAS/369/751 Near-infrared photometry of carbon stars (Whitelock+, 2006)
Near-infrared photometry of carbon stars.
Whitelock P.A., Feast M.W., Marang F., Groenewegen M.A.T.
<Mon. Not. R. Astron. Soc., 369, 751-782 (2006)>
=2006MNRAS.369..751W 2006MNRAS.369..751W
ADC_Keywords: Stars, carbon ; Photometry, infrared
Keywords: stars: AGB and post-AGB - stars: carbon - stars: distances -
stars: individual: R Lep - stars: variable: other - infrared: stars
Abstract:
Near-infrared, JHKL, photometry of 239 Galactic C-rich variable stars
is presented and discussed. From these and published data, the stars
were classified as Mira or non-Mira variables, and amplitudes and
pulsation periods, ranging from 222 to 948d for the Miras, were
determined for most of them. A comparison of the colour and period
relations with those of similar stars in the Large Magellanic Cloud
indicates minor differences, which may be the consequence of sample
selection effects. Apparent bolometric magnitudes were determined by
combining the mean JHKL fluxes with mid-infrared photometry from IRAS
and MSX.
Description:
Much of the JHKL photometry reported here comes from two specific
programmes; first, stars selected from the catalogue of Aaronson et
al. (1989ApJS...70..637A 1989ApJS...70..637A) and secondly, stars selected from the IRAS
Point Source Catalogue (PSC; IRAS Science Team 1988, Cat. II/125)
Most of the JHKL measurements were made with the MkII infrared
photometer on the 0.75-m telescope at SAAO, Sutherland.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 61 258 Stars observed in this survey (257 stars)
table2.dat 59 4516 Individual JHKL observations
table3.dat 84 258 *Near-infrared data (257 stars)
table6.dat 71 144 Derived data for Miras with pulsation periods
notes.dat 80 185 Individual notes
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Note on table3.dat: BH Cru has two sets of near-infrared data.
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See also:
II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)
III/227 : General Catalog of galactic Carbon stars, 3d Ed. (Alksnis+ 2001)
J/MNRAS/267/711 : AGB Stars in the South Galactic Cap (Whitelock+ 1994)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 A1 --- n_Name [*] indicates a note in notes.dat file
2 A1 --- f_Name [C] C: CS stars, peculiar and uncertain C stars
4- 18 A15 --- Name Name
20- 29 A10 --- IRAS IRAS designation (HHMMm+DDMM, B1950)
31- 32 I2 h RAh Right ascension (J2000)
34- 35 I2 min RAm Right ascension (J2000)
37- 38 I2 s RAs Right ascension (J2000)
40 A1 --- DE- Declination sign (J2000)
41- 42 I2 deg DEd Declination (J2000)
44- 45 I2 arcmin DEm Declination (J2000)
47- 48 I2 arcsec DEs Declination (J2000)
50 A1 --- MSX [X] X: stars with MSX data
52- 53 A2 --- G [AIi ] A: high probability of being C Miras
I: stars as part of the IRAS sample
i: erratic or low-amplitude variables
55- 58 I4 --- CGCS ? CGCS number (Cat. III/227)
60- 61 A2 --- Com Comment (1)
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Note (1): Comments as follows:
1 = Complex flattened circumstellar shell
(Richichi et al., 1998A&A...334..585R 1998A&A...334..585R)
2 = Super lithium rich star (Catchpole & Feast, 1976MNRAS.175..501C 1976MNRAS.175..501C)
3 = No 2MASS photometry; image blended.
4 = C star 35 arcsec east of OH353.81+1.45; IRAS probably blend of two
5 = 17463-4007 is the only known cool C star in the Bulge as noted
from an objective prism survey by S. Hughes (priv. com.).
6 = SC star (Keenan & Boeshaar, 1980ApJS...43..379K 1980ApJS...43..379K)
7 = SC star (Lloyd Evans, 1991MNRAS.249..409L 1991MNRAS.249..409L)
8 = SIMBAD quotes spectral type other than C.
9 = S star (Lloyd Evans & Catchpole, 1989MNRAS.237..219L 1989MNRAS.237..219L)
10 = Not a C star (Aaronson et al., 1989ApJS...70..637A 1989ApJS...70..637A)
11 = C star with silicate shell (Skinner et al., 1990MNRAS.243...78S 1990MNRAS.243...78S)
12 = Not a C star (Chen, Zhang & Fu, 2003NewA....8..719C 2003NewA....8..719C)
13 = Not a C star (e.g. Groenewegen (1994A&A...290..207G 1994A&A...290..207G) and
references therein).
C? = These have been suggested as C rich on the basis of their infrared
colours or IRAS spectra, but the evidence is inconclusive.
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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- 15 A15 --- Name Name
17- 25 F9.1 d HJD Heliocentric Julian date
28- 32 F5.2 mag Jmag ? J magnitude
33 A1 --- u_Jmag Uncertainty flag on Jmag
35- 39 F5.2 mag Hmag ? H magnitude
40 A1 --- u_Hmag Uncertainty flag on Hmag
42- 46 F5.2 mag Kmag ? K magnitude
47 A1 --- u_Kmag Uncertainty flag on Kmag
49- 53 F5.2 mag Lmag ? L magnitude
54 A1 --- u_Lmag Uncertainty flag on Lmag
56- 59 A4 --- Tel Telescope (1)
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Note (1): 1.9m for measurements made on the SAAO 1.9-m telescope,
else measurements made on SAAO 0.75m telescope.
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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 A1 --- f_Name [C] C: CS stars, peculiar and uncertain C stars
3- 17 A15 --- Name Name
19- 23 F5.2 mag Jmag ? J magnitude
25- 29 F5.2 mag Hmag ? H magnitude
31- 35 F5.2 mag Kmag ? K magnitude
37- 41 F5.2 mag Lmag ? L magnitude
42 A1 --- u_Lmag Uncertainty flag on Lmag
43 A1 --- l_AJmag Limit flag on AJmag
44- 47 F4.2 mag AJmag ? Amplitude in J band
49 A1 --- l_AHmag Limit flag on AHmag
50- 53 F4.2 mag AHmag ? Amplitude in H band
55 A1 --- l_AKmag Limit flag on AKmag
56- 59 F4.2 mag AKmag ? Amplitude in K band
61 A1 --- l_ALmag Limit flag on ALmag
62- 65 F4.2 mag ALmag ? Amplitude in L band
67- 69 I3 d Per ? Period, determined from a Fourier transform
of the K light curve
70 A1 --- u_Per Uncertainty flag on Per
72- 74 I3 d Per2 ? Period from literature
75 A1 --- u_Per2 Uncertainty flag on Per2
77- 78 I2 --- Var ? Variability class (1)
79 A1 --- u_Var Uncertainty flag on Var
80 A1 --- n_Var [ab] Note on Var (2)
82- 84 I3 --- Nfit Number of points used in the fit
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Note (1): Variability class, in the form 1n, 2n, where the first parameter
represent the Mira/non-Mira type as follows:
1 = Mira
2 = non-Mira
and the second parameter represent the type of light curve as follows:
0 = Sinusoidal and reasonably repeatable
1 = Evidence of obscuration events or a long-term trend
2 = For pronounced second peak in light curve (Miras only)
3 = For erratic behaviour, includes large amplitude non-Miras
4 = Inconsistent with other published photometry
5 = Star with peculiarities described in text
Note (2): Notes as follows:
a = These stars are discussed in Section 11 on long-term trends.
b = These are stars for which the second parameter of the variable
type depends on the combination of our observations and
photometry from other sources.
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Name Name
17- 21 F5.2 kpc Dist Distance
23- 26 F4.2 mag AV Extinction in V-band
28- 32 F5.2 mag mbol ? Apparent bolometric magnitude
34- 37 F4.2 mag (J-H)0 ? Dereddened J-H colour index
39- 42 F4.2 mag (H-K)0 ? Dereddened H-K colour index
44- 47 F4.2 mag (K-L)0 ? Dereddened K-L colour index
49- 53 F5.2 mag K0-[12] ? K0-[12] colour index
55- 59 F5.2 mag K0mag Dereddened K magnitude
61- 65 F5.2 [solMass/yr] logdM/dt ? Mass loss
67- 71 F5.2 mag BCK Bolometric correction at K
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Name Name
16- 80 A65 --- Note Text of the note
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History:
From electronic version of the journal
27-Apr-2007 : Description of table3 corrected.
(End) Patricia Vannier [CDS] 20-Oct-2006