= A. D. Challinor
{c}
<A. D. Challinor> coauthored, with <A. N. Lasenby>, analytic corrections to the <thermal Sunyaev-Zeldovich effect> in hot <galaxy clusters>. The calculation uses an expansion of the <Kompaneets equation> to include relativistic effects in scattering by <electrons>.
The resulting change in spectral shape matters when combining <X-ray> and <cosmic microwave background> observations to infer cluster properties or a <Hubble constant>. A small correction to the physical signal can produce a systematic shift in a derived parameter.<Relativistic corrections to the Sunyaev-Zel'dovich effect by A. D. Challinor and A. N. Lasenby>[Abstract: analytic spectral corrections and their effect on a combined X-ray/Sunyaev–Zeldovich inference]{ref}
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