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arXiv · 2503.18116

Using Planck maps for a systematic search of ultra-bright high-redshift strongly lensed galaxies

Matteo Bonato·Leonardo Trobbiani·Ivano Baronchelli·Gianfranco De Zotti·Mattia Negrello·Tiziana Trombetti·Carlo Burigana·Vincenzo Galluzzi·Erlis Ruli
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Abstract

This paper presents a novel approach to the use of Planck telescope data for the systematic search of ultra-bright high-redshift strongly lensed galaxies. These galaxies provide crucial insights into the early universe, particularly during phases of intense star formation. The Planck mission, despite its limited angular resolution, offers a unique opportunity to identify candidate strongly lensed galaxies over a wide area of the sky. This work outlines the methodology used to identify these rare objects, the challenges encountered, and the preliminary results obtained from follow-up observations with higher-resolution instruments.

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Matteo Bonato, Leonardo Trobbiani, Ivano Baronchelli, Gianfranco De Zotti, Mattia Negrello, Tiziana Trombetti, Carlo Burigana, Vincenzo Galluzzi, Erlis Ruli. 2025-03-23. Using Planck maps for a systematic search of ultra-bright high-redshift strongly lensed galaxies. https://arxiv.org/abs/2503.18116

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