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Raphael Zöller

PhD Student @ USM/LMU & MPE

Raphael Zöller

About me

I am a PhD student in the joint research group of the Extragalactic Astronomy group at the University Observatory Munich (Ludwig-Maximilians-University Munich) and the OPINAS group at the Max Planck Institute for Extraterrestrial Physics.
Furthermore, I am an on-site observer at the LMU's Wendelstein Observatory operating the 2.1m Fraunhofer Wendelstein Telescope and a 43cm telescope.
My primary research focus revolves around ultra-diffuse galaxies and the broader study of dwarf galaxy populations within clusters. Here, I am studying the structural parameter relations and luminosity functions of dwarf galaxies in nearby galaxy clusters, selecting the cluster members based on their u'-g'-r' band colors. To conduct my investigations, I primarily employ multi-color photometric data obtained using the Wendelstein-Wide-Field-Imager (WWFI) at the 2.1m Fraunhofer Wendelstein Telescope. Moreover, I am a member of the Euclid consortium, working in the Local Universe Science Working Group. Here, I am involved in the Euclid Early Release Observations project, focussing on the dwarf galaxy population of the Perseus cluster. Prior to this, I contributed to the Euclid preparation Complete Calibration of the Color–Redshift Relation survey, measuring spectroscopic redshifts of galaxies using near-infrared data obtained with the LUCI instruments at the Large Binocular Telescope. Apart from my main research focus, I am also involved in multiple projects that are conducted at the Wendelstein observatory, e.g. time delay cosmography, exoplanet detections, and transient follow-ups.
In addition to my research pursuits, I also possess a keen interest in the field of photometric data reduction to reach the precision required for low surface brightness photometry, continuously improving the WWFI datareduction pipeline.

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