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On Our Multi-Wavelength Campaign of the 2011 Outburst of T Pyx

Published online by Cambridge University Press:  20 April 2012

L. Schmidtobreick
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
A. Bayo
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
Y. Momany
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
V. Ivanov
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
D. Barria
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
Y. Beletsky
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
H. M. J. Boffin
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
G. Brammer
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
G. Carraro
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
W.-J. de Wit
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
J. Girard
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
G. Hau
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
M. Moerchen
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
D. Nuernberger
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
M. Pretorius
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
T. Rivinius
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
R. Sanchez-Janssen
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
F. Selman
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
S. Stefl
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
I. Yegorova
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: [email protected]
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Abstract

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The well-known recurrent nova T Pyx has brightened by 7 magnitudes, starting on 2011 April 14, its first eruption since 1966. T Pyx is unique amongst recurrent novæ in being surrounded by a nebula formed of material ejected during previous eruptions. The latest eruption therefore offers the rare opportunity to observe a light echo sweeping through the existing shell, and a new one forming. The sudden exposure of the existing shell to high-energy light is expected to result in a change of the dust morphology as well as in the part destruction of molecules. We observe this process in the near- and mid-IR during several epochs using ESO's VLT instruments Sinfoni, Visir and Isaac. Unfortunately, in the data analysed so far we only have a tentative detection in Brα from the shell, so might in the end have to be content with upper limits for the emission from the various molecular bands and ionised lines.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2012

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