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arxiv: astro-ph/0409634 · v2 · submitted 2004-09-27 · 🌌 astro-ph

Simultaneous Doppler maps of IP Peg in outburst

C. Papadaki (1 , 2) , H.M.J. Boffin (3) , D. Steeghs (4) ((1) Royal Observatory of Belgium , Brussels (2) Vrije Universiteit Brussel (OBSS/WE) , Brussels , Belgium (3) European Southern Observatory , Garching bei Munchen
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Germany (4) Harvard-Smithsonian Center for Astrophysics Cambridge USA)
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classification 🌌 astro-ph
keywords dopplermapsperiodsimultaneousaboveaccretionallowsangstrom
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IP Pegasi is an eclipsing dwarf nova lying above the period gap with an orbital period of 3.8h. It is the first cataclysmic variable to show evidence of spiral arms in its accretion disc. We present new time-resolved echelle spectroscopic observations of IP Peg, covering the 3900-7700 Angstrom range. This allows us to produce simultaneous Doppler Maps in 9 emission lines.

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