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arxiv: 1205.4430 · v1 · pith:KSOJ7V7Ynew · submitted 2012-05-20 · 🌌 astro-ph.SR

Infrared observations of the recurrent nova T Pyxidis: ancient dust basks in the warm glow of the 2011 outburst

A. Evans (Keele University , U.K.) , R. D. Gehrz (Minnesota) , L. A. Helton (NASA Ames) , S. Starrfield (Arizona State) , M. F. Bode (LJMU) , J. P. Osborne (Leicester) , D. P. K. Banerjee (PRL
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Gujarat India) J.-U. Ness (SciOps ESAC) F. M. Walter (SUNY Stony Brook) C. E. Woodward (Minnesota) E. Kuulkers (SciOps S. P. S. Eyres (Central Lancs) J. M. Oliveira (Keele University) N. M. Ashok (PRL J. Krautter (Heidelberg) T. J. O'Brien (Manchester) K. L. Page (Leicester) M. T. Rushton (Central Lancs)
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keywords dustduringeruptioneruptionsinfrarednovaobservationsrecurrent
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We present Spitzer Space Telescope and Herschel Space Observatory infrared observations of the recurrent nova T Pyx during its 2011 eruption, complemented by ground-base optical-infrared photometry. We find that the eruption has heated dust in the pre-existing nebulosity associated with T Pyx. This is most likely interstellar dust swept up by T Pyx - either during previous eruptions or by a wind - rather than the accumulation of dust produced during eruptions.

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