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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 (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: ------------------------------------------------------------ RA (2000) DE Designation(s) ------------------------------------------------------------ 05 03 55.51 -28 54 34.6 RX J0503.9-2854 = EUVE J0503-28.8 ------------------------------------------------------------ File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tablea1.dat 145 74 Line list for EUVE spectrum of RX J0503.9-2854 tablea2.dat 145 612 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 145 83 Line list for optical spectrum of RX J0503.9-2854 tablea5.dat 145 2 Line list for SofI spectrum of RX J0503.9-2854 pdf/* 0 5 Individual tables in pdf
Byte-by-byte Description of file: tablea?.dat
Bytes Format Units Label Explanations
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
Acknowledgements: Thomas Rauch, rauch(at)astro.uni-tuebingen.de
(End) Patricia Vannier [CDS] 03-Nov-2016
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