Development of discrete velocity components in the optical spectrum of T Pyx

Details Development of discrete velocity components in the optical spectrum of T Pyx Development of discrete velocity components in the optical spectrum of T Pyx

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3376....1s&link_type=abstract

The Astronomer's Telegram, #3376

Astronomy and Astrophysics

Astronomy

Optical, Nova

Scientific paper

We have continued out high resolution optical spectroscopy of the latest outburst of T Pyx with the FIES fiber-fed echelle (R ~ 67000) as first reported in ATel 3306. Here we describe the changes in the optical resonance and Fe II lines. The first observation, obtained on 2011 Apr. 15.92 UT, shows a pre-maximum spectrum (e.g. McLaughlin, D. B. 1964, Ann.Ap., 27, 450, now identified as the so-called fireball stage) showing only Balmer series and He I/II with P Cyg components extending to -3000 km/s, and a complex blend at C III/ N II 4640 A.

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