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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: lschmidt@eso.org
A. Bayo
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
Y. Momany
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
V. Ivanov
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
D. Barria
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
Y. Beletsky
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
H. M. J. Boffin
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
G. Brammer
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
G. Carraro
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
W.-J. de Wit
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
J. Girard
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
G. Hau
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
M. Moerchen
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
D. Nuernberger
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
M. Pretorius
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
T. Rivinius
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
R. Sanchez-Janssen
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
F. Selman
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
S. Stefl
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
I. Yegorova
Affiliation:
European Southern Observatory, Casilla 19001, Santiago 19, Chile email: lschmidt@eso.org
Corresponding
E-mail address:
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Abstract

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

References

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