Raphael Zöller
A5087681401- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Galaxies: Formation, Evolution, Phenomena
- Astro and Planetary Science
- Astrophysics and Star Formation Studies
- Astronomical Observations and Instrumentation
- Adaptive optics and wavefront sensing
Max Planck Institute for Extraterrestrial Physics
2022-2024
Ludwig-Maximilians-Universität München
2022-2024
Abstract In this study, we compare the structural parameters of ultradiffuse galaxies (UDGs) to those other dwarf and investigate whether UDGs form a distinct population. We observed deep <?CDATA $u^{\prime} $?> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mi>u</mml:mi> <mml:mo accent="false">′</mml:mo> </mml:math> -, $g^{\prime} <mml:mi>g</mml:mi> $r^{\prime} <mml:mi>r</mml:mi> -band images (maximum limiting surface brightness [3 σ , 10″ × 10″] : $\approx...
We report the discovery and characterization of two sub-Saturns from Transiting Exoplanet Survey Satellite (\textit{TESS}) using high-resolution spectroscopic observations MaHPS spectrograph at Wendelstein Observatory SOPHIE Haute-Provence Observatory. Combining photometry TESS, KeplerCam, LCOGT, MuSCAT2 with radial velocity measurements we measure precise radii masses for both planets. TOI-5108 b is a sub-Saturn radius $6.6 \pm 0.1$ $R_\oplus$ mass $32 5$ $M_\oplus$. TOI-5786 similar to...
We report the discovery and characterization of two sub-Saturns from Transiting Exoplanet Survey Satellite ( TESS ) using high- resolution spectroscopic observations MaHPS spectrograph at Wendelstein Observatory SOPHIE Haute-Provence Observatory. Combining photometry TESS, KeplerCam, LCOGT, MuSCAT2, along with radial velocity measurements SOPHIE, we measured precise radii masses for both planets. TOI-5108 b is a sub-Saturn, radius 6.6 ± 0.1 R ⊕ mass 32 5 M . TOI-5786 similar to Saturn, 8.54...
We report the confirmation and characterization of four hot Jupiter-type exoplanets initially detected by TESS: TOI-1295 b, TOI-2580 TOI-6016 TOI-6130 b. Using observations with high-resolution echelle spectrograph MaHPS on 2.1 m telescope at Wendelstein Observatory, together NEID Kitt Peak National Observatory TRES Fred Lawrence Whipple we confirmed planetary nature these planet candidates. also performed precise mass measurements. All planets are found to be Jupiters orbital periods...
The Complete Calibration of the Color–Redshift Relation survey (C3R2) is a spectroscopic program designed to empirically calibrate galaxy color–redshift relation Euclid depth ( I E = 24.5), key ingredient for success Stage IV dark energy projects based on weak lensing cosmology. A calibration sample that as representative possible galaxies in being collected, selecting from self-organizing map (SOM) representation color space. Here, we present results near-infrared H - and K -band campaign...