Journal Article

The Sunyaev–Zel'dovich effect due to hyperstarburst galaxy winds

Barnaby Rowe and Joseph Silk

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 412, issue 2, pages 905-910
Published in print April 2011 | ISSN: 0035-8711
Published online March 2011 | e-ISSN: 1365-2966 | DOI:
The Sunyaev–Zel'dovich effect due to hyperstarburst galaxy winds

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We construct a simple, spherical blast wave model to estimate the pressure structure of the intergalactic medium surrounding hyperstarburst galaxies, and argue that the effects of interaction with star-forming galaxy winds may be approximated at early times by an adiabatically expanding, self-similar ‘bubble’ as described by Weaver et al. and Ostriker & McKee. This model is used to make observational predictions for the thermal Sunyaev–Zel'dovich effect in the shocked bubble plasma. Radiative cooling losses are explored, and it is found that bremsstrahlung will limit the epoch of adiabatic expansion to 107– 108 yr: comparable to total hyperstarburst lifetimes. Prospects for making a first Sunyaev–Zel'dovich detection of galaxy wind bubbles using the Atacama Large Millimeter Array are examined for a number of active hyperstarburst sources in the literature.

Keywords: shock waves; galaxies: high-redshift; intergalactic medium; galaxies: starburst

Journal Article.  4726 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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