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- McGill UniversityCA463 papers
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- University of AmsterdamNL119 papers
- Center for Astrophysics Harvard & SmithsonianUS112 papers
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88 papers · 1 filter
Towards -cm intensity mapping at with uGMRT using the tapered gridded estimator -- IV. Wideband analysis
Khandakar Md Asif Elahi, Somnath Bharadwaj, Srijita Pal +8
We present a Wideband Tapered Gridded Estimator (TGE), which incorporates baseline migration and variation of the primary beam pattern for neutral hydrogen (${\rm H\hspace{0.5mm}}{…
A Measurement of Gravitational Lensing of the Cosmic Microwave Background Using SPT-3G 2018 Data
Z. Pan, F. Bianchini, W. L. K. Wu +133
We present a measurement of gravitational lensing over 1500 deg of the Southern sky using SPT-3G temperature data at 95 and 150 GHz taken in 2018. The lensing amplitude relativ…
Towards -cm intensity mapping at with uGMRT using the tapered gridded estimator III: Foreground removal
Khandakar Md Asif Elahi, Somnath Bharadwaj, Srijita Pal +8
Neutral hydrogen (HI) -cm intensity mapping (IM) is a promising probe of the large-scale structures in the Universe. However, a few orders of magnitude brighter foregrounds obs…
A statistical framework for recovering intensity mapping autocorrelations from crosscorrelations
Lisa McBride, Adrian Liu
Intensity mapping experiments will soon have surveyed large swathes of the sky, providing information about the underlying matter distribution of the early universe. The resulting…
Search for the Epoch of Reionisation with HERA: Upper Limits on the Closure Phase Delay Power Spectrum
Pascal M. Keller, Bojan Nikolic, Nithyanandan Thyagarajan +80
Radio interferometers aiming to measure the power spectrum of the redshifted 21 cm line during the Epoch of Reionisation (EoR) need to achieve an unprecedented dynamic range to sep…
asevolution: a relativistic N-body implementation of the (a)symmetron
Øyvind Christiansen, Farbod Hassani, Mona Jalilvand +1
We present asevolution, a cosmological N-body code developed based on gevolution, which consistently solves for the (a)symmetron scalar field and metric potentials within the weak-…