J/A+A/598/A135 RX J0503.9-2854 spectral energy distribution (Hoyer+, 2017)
Complete spectral energy distribution of the hot, helium-rich white dwarf
RX J0503.9-2854.
Hoyer D., Rauch T., Werner K., Kruk J.W., Quinet P.
<Astron. Astrophys. 598, A135 (2017)>
=2017A&A...598A.135H 2017A&A...598A.135H (SIMBAD/NED BibCode)
ADC_Keywords: X-ray sources ; Energy distributions ; Spectroscopy
Keywords: atomic data - line: identification - stars: abundances -
stars: individual: RX J0503.9-2854 - virtual observatory tools
Abstract:
In the line-of-sight toward the DO-type white dwarf RX J0503.9-2854,
the density of the interstellar medium (ISM) is very low, and thus the
contamination of the stellar spectrum almost negligible. This allows
us to identify many metal lines in a wide wavelength range from the
extreme ultraviolet to the near infrared.
In previous spectral analyses, many metal lines in the ultraviolet
spectrum of RX J0503.9-2854 have been identified. A complete line
list of observed and identified lines is presented here.
We compared synthetic spectra that had been calculated from model
atmospheres in non-local thermodynamical equilibrium, with
observations.
In total, we identified 1272 lines (279 of them were newly assigned)
in the wavelength range from the extreme ultraviolet to the near
infrared. 287 lines remain unidentified. A close inspection of the EUV
shows that still no good fit to the observed shape of the stellar
continuum flux can be achieved although He, C, N, O, Al, Si, P, S, Ca,
Sc, Ti, V, Cr, Mn, Fe, Cr, Ni Zn, Ga, Ge, As, Kr, Zr, Mo, Sn, Xe, and
Ba are included in the stellar atmosphere models.
Description:
In this paper, we used the observed spectra (Extreme ultraviolet from
EUVE, Far ultraviolet from FUSE, Ultraviolet from HST/STIS and optical
in the framework of the Supernova Ia Progenitor Survey project (SPY).
Objects:
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RA (2000) DE Designation(s)
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05 03 55.51 -28 54 34.6 RX J0503.9-2854 = EUVE J0503-28.8
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
tablea1.dat 132 74 Line list for EUVE spectrum of RX J0503.9-2854
tablea2.dat 140 612 Line list for FUSE spectrum of RX J0503.9-2854
tablea3.dat 145 782 Line list for STIS spectrum of RX J0503.9-2854
tablea4.dat 132 83 Line list for optical spectrum of RX J0503.9-2854
tablea5.dat 85 2 Line list for SofI spectrum of RX J0503.9-2854
pdf/* . 5 Individual tables in pdf
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Byte-by-byte Description of file: tablea?.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- El Element with ionization stage
8- 32 A25 --- Lower Lower level electron configuration or
principal quantum number or energy in cm-1
34- 58 A25 --- Upper Upper level electron configuration or
principal quantum number or energy in cm-1
60- 66 E7.3 --- f ?=- Oscillator strength
68- 72 F5.1 0.1pm EWobs ? Observed equivalent width (if measured)
73- 81 F9.3 0.1nm WTh ?=- Theoretical wavelength
83- 89 F7.2 0.1nm WObs ?=- Observed wavelength (if measured)
91- 94 F4.1 km/s RV ?=- Radial velocity (if measured)
96-145 A50 --- Com Comments
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Acknowledgements:
Thomas Rauch, rauch(at)astro.uni-tuebingen.de
(End) Patricia Vannier [CDS] 03-Nov-2016