J/MNRAS/376/313 Carbon star in Magellanic Cloud (Groenewegen+, 2007)
Luminosities and mass-loss rates of carbon stars in the Magellanic Clouds.
Groenewegen M.A.T., Wood P.R., Sloan G.C., Blommaert J.A.D.L.,
Cioni M.-R.L., Feast M.W., Hony S., Matsuura M., Menzies J.W.,
Olivier E.A., Vanhollebeke E., van Loon J.T., Whitelock P.A.,
Zijlstra A.A., Habing H.J., Lagadec E.
<Mon. Not. R. Astron. Soc., 376, 313-337 (2007)>
=2007MNRAS.376..313G 2007MNRAS.376..313G
ADC_Keywords: Magellanic Clouds ; Stars, carbon ; Stars, variable ;
Photometry, infrared
Keywords: circumstellar matter - stars: AGB and post-AGB - stars: mass-loss -
Magellanic Clouds - infrared: stars
Abstract:
Dust radiative transfer models are presented for 60 carbon stars
in the Magellanic Clouds (MCs) for which 535m Spitzer infrared
spectrograph (IRS) spectra and quasi-simultaneous ground-based JHKL
photometry are available. From the modelling, the luminosity and
mass-loss rate are derived (under the assumption of a fixed expansion
velocity and dust-to-gas ratio), and the ratio of silicon carbide
(SiC) to amorphous carbon (AMC) dust is also derived. This ratio is
smaller than observed in Galactic carbon stars, as has been noted
before. Light curves for 36 objects can be retrieved from the massive
compact halo object (MACHO) and optical gravitational lensing
experiment (OGLE) data bases, and periods can be derived for all but
two of these. Including data from the literature, periods are
available for 53 stars.
Description:
The stars were observed as part of the General Observing time of SST,
programmes 3505 (PI; P.R. Wood) and 3277 (PI; M. Egan).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 100 60 The carbon star sample: identifiers and
pulsation periods
table2.dat 67 60 The carbon star sample:
quasi-simultaneous near-IR photometry
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See also:
J/A+A/425/595 : OGLE+2MASS+DENIS LPV in Magellanic Clouds (Groenewegen, 2004)
J/A+A/438/521 : SMC C stars B and R light curves (Raimondo+, 2005)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Name Identifier
17- 73 A57 --- ONames ?=- Other name(s)
74 A1 --- n_Per1 [*] Note on all periods (1)
75- 77 I3 d Per1 ? First period
79- 81 I3 d Per2 ? Second period
83- 85 I3 d Per3 ? Third period
87- 88 A2 --- r_Per1 ? Reference for Per1 (2)
89- 90 A2 --- r_Per2 ? Reference for Per2 (2)
92- 93 A2 --- r_Per3 ? Reference for Per3 (2)
95- 98 F4.2 mag Ampl ? Amplitude
100 A1 --- n_Ampl [KRI] Filter for the amplitude
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Note (1): Periods preceded by a * indicate stars considered to have
the most regular pulsation (see Figs 3-6)
Note (2): References as follows:
pp = present paper
1 = Whitelock et al. (2003MNRAS.342...86W 2003MNRAS.342...86W)
0 = Groenewegen (2004, cat. J/A+A/425/595)
0 = Nishida et al. (2000MNRAS.313..136N 2000MNRAS.313..136N)
0 = Raimondo et al. (2005, Cat. J/A+A/438/521)
1 = Reid et al. (1988MNRAS.232...53R 1988MNRAS.232...53R)
2 = Sloan et al. (2006ApJ...645.1118S 2006ApJ...645.1118S)
3 = Wood (1998A&A...338..592W 1998A&A...338..592W)
4 = Dodion (2003, MSc thesis, Univ. Leuven)
5 = Wood et al. (in preparation)
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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 Identifier
17- 22 F6.3 mag Jmag ?=- J magnitude
24- 28 F5.3 mag e_Jmag ?=- rms uncertainty on Jmag
30- 35 F6.3 mag Hmag ?=- H magnitude
37- 41 F5.3 mag e_Hmag ?=- rms uncertainty on Hmag
43- 48 F6.3 mag Kmag K magnitude
50- 54 F5.3 mag e_Kmag rms uncertainty on Kmag
56- 61 F6.3 mag Lmag L magnitude
63- 67 F5.3 mag e_Lmag rms uncertainty on Lmag
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 17-Sep-2007