EVLA Observations of T Pyx Reveal Radio Brightening

Details EVLA Observations of T Pyx Reveal Radio Brightening EVLA Observations of T Pyx Reveal Radio Brightening

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3679....1k&link_type=abstract

The Astronomer's Telegram, #3679

Astronomy and Astrophysics

Astronomy

Radio, Nova, Transient

Scientific paper

EVLA observations of T Pyx on 2011 September 17 and 24 show that it is now substantially brighter in the radio than previously reported (ATel #3318). This radio brightening follows a reported increase in X-ray flux and variability (ATel #3647). Our observed radio flux densities, covering a frequency range of 2 - 40 GHz, are reported below, including estimated 1σ errors. The spectrum can be characterized by a power-law with a spectral index of approximately α = 1.4 (where Sν ∝ να), suggesting an optically-thick thermal source of emission.

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