Fig. 2.
High resolution spectral (R = 27 000) evolution of T Pyx from 2011 April 16 to 2011 June 10. Evolution of Hα, Hβ, and O I (8446 Å) line profiles are shown. We note the variation in the velocity of the lines as the system evolves. There is a decrease in velocity from day 2.31 to 12.32 and then an increase up to ∼2000 km s−1 until day 57.29.
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