J/A+A/506/845 Line list of HD 143418 (Zverko+, 2009)
The puzzling binary HD 143418.
Zverko J., Ziznovsky J., Mikulasek Z., Krticka J., Iliev I.K.,
Stateva I.K., Romanyuk I.I., Kudryavtsev D.O.
<Astron. Astrophys., 506, 845-856 (2009)>
=2009A&A...506..845Z 2009A&A...506..845Z
ADC_Keywords: Atomic physics
Keywords: binaries: spectroscopic - stars: variables: general -
stars: chemically peculiar - stars: abundances - stars: evolution -
stars: individual HD 143418
Abstract:
HD 143418 was discovered recently to be a double-lined spectroscopic
binary with a primary designated as a CP star. Its light displays an
orbital phase coupled variability with a peak-to-peak amplitude up to
0.04mag.
The photometry available and new high dispersion spectra were
investigated from a point of view of CP characteristics. A series of
high resolution high S/N coude spectra was acquired from which 25 weak
to strong unblended lines of Fe I and II, Ti II, Cr II, Zr II, and Ba
II were selected to study spectral line variability. Two Zeeman
spectra were obtained to search for a possible magnetic field of the
star, and one echelle spectrum in a wide spectral region was analysed
for abundance determination by means of synthetic spectra. The
photometric observations were subjected to a PCA disentangling of the
complex photometric behaviour.
Description:
The twenty-nine spectra from the National Astronomical Observatory,
Rozhen, Bulgaria (NAO), were recorded using the photometric AT200 CCD
camera with a SITe SI003AB 1024x1024 detector placed at the 3rd
optical camera of the coude spectrograph of the 2m RCC telescope,
with R=22000, between 14/06/2005 and 03/05/2009.
Objects:
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RA (2000) DE Designation(s)
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15 58 25.7 +43 12 49 HD 143418 = HIP 78226
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 63 130 List of lines used in abundance determination
using the Zeeman spectrum
table6.dat 61 696 List of lines used in abundance determination
using the echelle spectrum
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See also:
J/A+A/464/263 : UBV photometry of HD 143418 (Bozic+, 2007)
Byte-by-byte Description of file: table[56].dat
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Bytes Format Units Label Explanations
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1- 5 A5 --- Ion Ion
7- 14 A8 --- Abund Abundance factor (1)
17- 24 F8.3 0.1nm Line Line wavelength
26- 31 F6.3 eV EP Energy potential
33- 38 F6.3 [-] loggf Oscillator strength
40- 43 A4 --- r_loggf Reference for loggf when other than VALD
values (2)
45- 50 F6.3 [-] loggf2 ? Second value of oscillator strength
52- 55 A4 --- r_loggf2 Reference for loggf2 (2)
57- 63 A7 --- Notes Notes (3)
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Note (1): Symbols indicate line strength as follows:
vW = very weak
W = weak
M = medium
S = strong
vS = very strong
Note (2): Source of the gf-value when other than VALD values as follows:
KB95 = Kurucz & Bell, 1995, CD ROM 23,
http://kurucz.harvard.edu/linelists.html
KP75 = Kurucz & Peytremann, 1975, SAO Spec. Report, 362
NIST = NIST Atomic Spectra Database, http://physics.nist.gov/
Note (3): Notes as follows:
DNF = does not fit with either gf-value
MIO = missing in the observed spectrum
blend = two lines of the same species
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 21-Jan-2010