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J/A+AS/124/425      RR Tel UV emission    (Zuccolo+ 1997)
================================================================================
The changes in the UV emission lines of RR Tel from 1978 to 1993.
I. The IUE SWP region
      Zuccolo R., Selvelli P., Hack M.
      <Astron. Astrophys. Suppl. Ser. 124, 425 (1997)>
      =1997A&AS..124..425Z      (SIMBAD/NED BibCode)
================================================================================
ADC_Keywords: Novae ; Spectra, ultraviolet
Keywords: individual: RR Tel - stars: novae, cataclysmic variables -
          line: identification - ultraviolet: stars

Mission_Name: IUE

Abstract:
    Line emission intensities and FWHMs in the range 1175-1900{AA} have
    been measured on high resolution IUE spectra of RR Tel taken from 1978
    to 1993. The variations observed in the emission line intensities show
    a rather strong correlation with the line ionization. The decrease is
    of a factor larger than three and up to ten for the low-ionization
    lines, and of a factor between two and three for the medium-high
    ionization lines. Instead, the high ionization lines have generally
    maintained their 1978 strength or have even increased it. For all
    lines no variation in the FWHM has been detected. Special attention
    has been paid to a very long exposure spectrum already studied by
    other authors for which we present new identifications and several
    comments. The presence of spurious emission features and camera
    artifacts is discussed

Objects:
    ----------------------------------------------------------
       RA  (2000)  DE    Designation(s)
    ----------------------------------------------------------
     20 04 16   -55 43.3 RR Tel
    ----------------------------------------------------------

File Summary:
--------------------------------------------------------------------------------
  FileName      Lrecl  Records   Explanations
--------------------------------------------------------------------------------
ReadMe             80        .   This file
table1             70     1016   IUE far-UV spectrum from 1978 to 1992
table2             51       14   Additional lines present in SWP20246 only
tables.tex        146      521   LaTeX version of the tables
--------------------------------------------------------------------------------

Byte-by-byte Description of file: table1
--------------------------------------------------------------------------------
   Bytes Format Units      Label     Explanations
--------------------------------------------------------------------------------
   1-  4   I4   yr         ObsYear   Year of observation
   6- 21  A16   ---        Element   Element
  23- 28  F6.2  ---        Mult      ? Multiplicity
  30- 36  F7.2  0.1nm      lamLab    ? Laboratory wavelength
      37  A1    ---      n_lamLab    [+] + indicates two wavelengths
  38- 44  F7.2  0.1nm      lamLab2   ? Second laboratory wavelength
  46- 50  F5.2  0.1nm      lamObs    Observed wavelength (1)
      52  A1    ---        SWP       [ ab] Spectrum and exposure time (2)
  54- 57  F4.2  0.1nm      FWHM      ? FWHM of feature
  58- 59  A2    ---      n_FWHM      [blr s] Note on FWHM (3)  61- 66  F6.3 10-14W/m2   Int       ? Emission intensity
  67- 68  A2    ---      n_Int       [blr s] Note on I1 (3)
--------------------------------------------------------------------------------
Note (1): Average value for each set of spectra. This is the wavelength value as
           directly measured on the spectrum, not corrected for the radial
           velocity of RR Tel relative to the Sun, that has a value close
           to -62km/s.
Note (2): Numbers of SWP spectra used and corresponding exposure time
           for each year:
            1978: blank=S2247, 180min ; a=S3407,  1.5min ; b=S3405,  36min
            1980: blank=S10434, 60min ; a=S9540, 10min
            1981: blank=S15229, 44min ; a=S14727,25min   ; b=S14230, 10min
            1982:       S18371, 20min
            1983: blank=S20246, 820min ; a=S20247, 20min
            1984:       S22531,  40min
            1985:       S27051,  20min
            1986: blank=S29535, 220min ; a=S28741, 20min
            1987:       S31081, 127min
            1988: blank=S34702, 435min ; a=S34005, 20min
            1992: blank=S46032,  95min ; a=S45214, 20min ; b=S46030,  2min
            1993: blank=S48188, 120min ; a=S48187, 20min ; b=S47600, 15min
Note (3):  s: saturated
          bl: blended
          br: blemished by reseaux
--------------------------------------------------------------------------------

Byte-by-byte Description of file: table2
--------------------------------------------------------------------------------
   Bytes Format Units     Label     Explanations
--------------------------------------------------------------------------------
   1-  5  A5    ---       Element   Element
   6-  9  A4    ---       Mult      Multpilet
  11- 17  F7.2  0.1nm     LamLab    ? Laboratory wavelength
  19- 25  F7.2  0.1nm     LamObs    ? Observed wavelength
  27- 30  F4.2  0.1nm     FWHM      ? FWHM
      32  A1    ---     l_Int       Limit flag on intensity
  33- 36  F4.2 10-14W/m2  Int       ? Emission intensity
  38- 51  A14   ---       Notes     Notes (1)
--------------------------------------------------------------------------------
Note (1): Jordan (1973)
          Kelly 1987, J. Phys. Chem. ref. Data 16, Suppl. 1
--------------------------------------------------------------------------------

Table3: Spectral artifacts in SWP 20246
----------------------------------------------------
    Table 3a             |          Table 3b
----------------------------------------------------
 Confirmed (or likely)   |    Additional artifacts
 spectral artifacts      |      found in this study
 from ADB                |
----------------------------------------------------
  lambda as in ADB       |    lambdaObs
----------------------------------------------------
      1216.35            |      1160.0  1583.9
      1281.62            |      1165.9  1629.8
      1298.48            |      1266.9. 1691.1
      1504.94            |      1287.9. 1702.7
      1536.84            |      1288.2  1706.9
      1603.40            |      1288.5  1710.0
      1603.92            |      1288.8  1729.0
      1604.37            |      1315.7  1755.6
      1692.91            |      1381.7  1800.0
      1718.62            |      1453.7  1825.1
      1725.77            |      1454.1
      1762.21            |      1454.9
      1794.07            |      1460.7
      1795.38            |      1487.8
      1809.93            |      1500.9
      1845.27            |      1573.0
-----------------------------------------------------

Acknowledgements: Pierluigi Selvelli <selvelli@astrts.oat.ts.astro.it>
================================================================================
(End)                                          Patricia Bauer [CDS]  07-Jan-1997

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