activity
20042017
most citedA Hint of Poincaré Dodecahedral Topology in the WMAP First Year Sky Map

92 citations · 217 across the 12 of their papers we have counts for

collaborators

11 papers

astro-ph.IM2017★ 9 cited

Improving pointing of Toruń 32-m radio telescope: effects of rail surface irregularities

Bartosz Lew

Over the last few years a number of software and hardware improvements have been implemented to the 32-m Cassegrain radio telescope located near Toruń. The 19-bit angle encoders ha…

astro-ph.IM2016★ 1 cited

The comptonization parameter from simulations of single-frequency, single-dish, dual-beam, cm-wave observations of galaxy clusters and mitigating CMB confusion using the Planck sky survey

Bartosz Lew, Boudewijn F. Roukema

Systematic effects in dual-beam, differential, radio observations of extended objects are discussed in the context of the One Centimeter Receiver Array (OCRA). We use simulated sam…

astro-ph.IM2015★ 4 cited

Clear sky atmosphere at cm-wavelengths from climatology data

Bartosz Lew, Joanna Uscka-Kowalkowska

We utilise ground-based, balloon-borne and satellite climatology data to reconstruct site and season-dependent vertical profiles of precipitable water vapour (PWV). We use these pr…

astro-ph.CO2015

Constraints on radio source clustering towards galaxy clusters: application for cm-wavelength simulations of blind sky surveys

Bartosz Lew

We constrain radio source clustering towards -selected galaxy clusters using the NVSS point source catalogue. The constraint can be utilised for generating realistic Sunyae…

astro-ph.CO2014★ 3 cited

Simulations of cm-wavelength Sunyaev-Zel'dovich galaxy cluster and point source blind sky surveys and predictions for the RT32/OCRA-f and the Hevelius 100-m radio telescope

Bartosz Lew, Mark Birkinshaw, Peter Wilkinson +1

We investigate the effectiveness of blind surveys for radio sources and galaxy cluster thermal Sunyaev-Zel'dovich effects (TSZEs) using the four-pair, beam-switched OCRA-f radiomet…

astro-ph.CO2011★ 13 cited

Sunyaev Zel'dovich observations of a statistically complete sample of galaxy clusters with OCRA-p

Katy Lancaster, Mark Birkinshaw, Marcin P. Gawronski +15

We present 30 GHz Sunyaev Zel'dovich observations of a statistically complete sample of galaxy clusters with OCRA-p. The clusters are the 18 most X-ray luminous clusters at z > 0.2…