3 papers
astro-ph.CO2025
Weak lensing analysis of A115, A2219 and A2261: Detection of galaxy groups and filaments around clusters
Anirban Dutta, John Peterson, Matteo Cianfaglione +1
We present a weak lensing and multi-wavelength analysis of three galaxy clusters: A115, A2219, and A2261. Weak lensing is performed using shape measurements made in short 60s expos…
astro-ph.CO2025
Weak Lensing analysis of Abell 2390 using short exposures
A. Dutta, J. R. Peterson, T. Rose +4
We present a weak lensing analysis of the galaxy cluster Abell 2390 at z = 0.23 using second moment shape measurements made in 411 short 60s exposures. The exposures are obtained i…
astro-ph.IM2025
Forced Measurement of Astronomical Sources at Low Signal to Noise
Anirban Dutta, John R. Peterson, Glenn Sembroski
We propose a modified moment matching algorithm to avoid catastrophic failures for sources with a low signal to noise ratio (SNR). The proposed modifications include a method to el…