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A systematic search for rapid photometric variability in southern symbiotic stars I. V648 Car†

Published online by Cambridge University Press:  21 February 2013

Rodolfo Angeloni ,
Francesco Di Mille ,
Carlos Eduardo Ferreira Lopes  and
Nicola Masetti
Rodolfo Angeloni
Affiliation:
Departamento de Astronomía y Astrofísica, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile email: rangelon@astro.puc.cl
Francesco Di Mille
Affiliation:
Sydney Institute for Astronomy, The University of Sydney 44-70 Rosehill St., Redfern, NSW 2016, Australia email: fdimille@aao.gov.au
Carlos Eduardo Ferreira Lopes
Affiliation:
Universidade Federal do Rio Grande do Norte, Campus Universitário Lagoa Nova CEP 59078-970, Natal/RN - Brasil email: carlos_eduardo@dfte.ufrn.br
Nicola Masetti
Affiliation:
INAF - Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, via Gobetti 101, 40129 Bologna, Italy email: masetti@iasfbo.inaf.it
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Abstract

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We present the first results from the systematic observational campaign aimed at studying rapid photometric variability (i.e., flickering) in southern symbiotic stars. In particular, we report on the discovery of strong flickering from V648Car (also known as SS73-17), a poorly studied system belonging to the small class of hard X-ray emitting symbiotic stars. To our knowledge, with a U-band flickering amplitude >0.6mag over time scales of minutes, it is one of the most significant flickering ever reported from a symbiotic star.

Keywords

Binaries: symbiotic — stars: individual (V648 Car ≡ SS73-17) — techniques: photometric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 179 - 180
Copyright
Copyright © International Astronomical Union 2013

References

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