J/ApJ/705/32 Diffuse interstellar bands from HD 183143 (Hobbs+, 2009)
Studies of the diffuse interstellar bands.
III. HD 183143.
Hobbs L.M., York D.G., Thorburn J.A., Snow T.P., Bishof M., Friedman S.D.,
McCall B.J., Oka T., Rachford B., Sonnentrucker P., Welty D.E.
<Astrophys. J., 705, 32-45 (2009)>
=2009ApJ...705...32H 2009ApJ...705...32H
ADC_Keywords: Interstellar medium ; Equivalent widths ; Spectroscopy ;
Stars, B-type
Keywords: ISM: lines and bands - ISM: molecules - stars: individual (HD 183143)
Abstract:
Echelle spectra of HD 183143 [B7Iae, E(B-V)=1.27] were obtained on
three nights, at a resolving power R=38000 and with a signal-to-noise
ratio ∼1000 at 6400Å in the final, combined spectrum. A catalog is
presented of 414 diffuse interstellar bands (DIBs) measured between
3900 and 8100Å in this spectrum. The central wavelengths, the
widths (FWHM), and the equivalent widths of nearly all of the bands
are tabulated, along with the minimum uncertainties in the latter.
Among the 414 bands, 135 (or 33%) were not reported in four previous,
modern surveys of the DIBs in the spectra of various stars, including
HD 183143. The principal result of this study is that the great
majority of the bands in the catalog are very weak and fairly narrow.
Typical equivalent widths amount to a few mÅ, and the bandwidths
(FWHM) are most often near 0.7Å.
Description:
The spectra were obtained with the 3.5m telescope and the ARC echelle
spectrograph (ARCES) at Apache Point Observatory. Each exposure
provides nearly complete spectral coverage from about 3700 to
10000Å at a resolving power R=38000. The star's spectrum was
recorded on each of three nights in 1999: May 30, May 31, and June 11.
Objects:
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RA (2000) DE Designation(s)
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19 27 26.6 +18 17 45 HD 183143 = TYC 1604-378-1
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 103 418 Diffuse interstellar bands (DIBs) in the
spectrum of HD 183143
table3.dat 99 71 71 possible diffuse interstellar bands in the
spectrum of HD 183143
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See also:
III/148 : Interstellar lines catalogue (Garcia 1991)
II/135 : Suppl. to Diffuse Interstellar Band Measurements (Guarinos 1988)
II/149 : Diffuse Interstellar Band Measurements (Snow+ 1977)
J/A+A/531/A25 : Linear and circular polarisation spectra of 2 stars (Cox+,
2011)
J/MNRAS/358/563 : Diffuse Interstellar Bands in 49 stars (Megier+, 2005)
Byte-by-byte Description of file: table[23].dat
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Bytes Format Units Label Explanations
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1- 7 F7.2 0.1nm JD94 ? Jenniskens & Desert (1994A&AS..106...39J 1994A&AS..106...39J)
central wavelength
9 A1 --- f_JD94 [b] blend (see section 3.2 for details)
11- 17 F7.2 0.1nm GM00 ? Galazutdinov et al. (2000PASP..112..648G 2000PASP..112..648G)
central wavelength
19- 25 F7.2 0.1nm TC00 ? Tuairisg et al. (2000A&AS..142..225T 2000A&AS..142..225T) central
wavelength
27 A1 --- f_TC00 [b] blend (see section 3.2 for details)
29- 35 F7.2 0.1nm WS00 ? Weselak et al. (2000A&AS..142..239W 2000A&AS..142..239W) central
wavelength
37 A1 --- f_WS00 [b] blend (see section 3.2 for details)
39- 45 F7.2 0.1nm Wc Band central wavelength in Angstroms
47- 51 F5.2 0.1nm FWHM ? Band Full-Width at Half-Maximum
53 A1 --- l_EW Limit flag on EW
54- 59 F6.1 10-13m EW ? Band equivalent width in milli-Angstroms
61 A1 --- f_EW [p] p: present
63- 66 F4.1 10-13m e_EW ? Uncertainty in EW
68- 72 A5 --- n_EW Warning note on EW (1)
74- 80 F7.2 0.1nm RWc Band central wavelength in stellar rest frame
82 A1 --- l_BWc Limit flag on BWc (2)
83- 89 F7.2 0.1nm BWc ? β Ori central wavelength
91 A1 --- f_BWc [P] Indicates BWc shows a P Cygni profile
93- 97 F5.1 10-13m BEW ? β Ori equivalent width in milli-Angstroms
99 A1 --- f_BEW [b] blend (3)
101-103 I3 --- Seq ? Running index number (only for table 2)
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Note (1): Note as follows:
d = blend with another DIB (diffuse interstellar band);
s = blend with stellar line;
t = blend with telluric line;
det = detector artifact;
s1 = blend with stellar NI;
s2 = blend with stellar NII.
Note (2): Indicates more than one (isolated) stellar line interfers,
typically for a broad DIB (diffuse interstellar band). The
corresponding sum of the equivalent widths is given in BEW.
Note (3):
b = the stellar line measured is itself a blend of at least two lines.
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History:
From electronic version of the journal
References:
Thorburn et al. Paper I. 2003ApJ...584..339T 2003ApJ...584..339T
Hobbs et al. Paper II. 2008ApJ...680.1256H 2008ApJ...680.1256H
McCall et al. Paper IV. 2010ApJ...708.1628M 2010ApJ...708.1628M
Friedman et al. Paper V. 2011ApJ...727...33F 2011ApJ...727...33F
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 28-Nov-2011