<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "A Critical Appraisal of Planets Orbiting Giant Stars"^^ . "Giant stars provide a unique opportunity to study planets around intermediate-mass stars\r\nthrough radial velocity surveys and examine the impact of stellar evolution on planetary\r\nsystems. Despite their growing numbers, few planets have been found with very short\r\nor long orbital periods. Furthermore, detections around luminous giants are debated as\r\nintrinsic mechanisms can mimic planetary signals. In this thesis, I rule out two transiting\r\nplanet candidates from TESS via spectroscopic follow-up. To address the planet controversy\r\nsurrounding luminous giants, I develop the simulation tool pyoscillot, showing that the\r\nradial velocities and activity indicators of the false-positive planet host NGC 4349 No. 127\r\ncan be reproduced by a non-radial oscillation model. I further combine data from the Lick,\r\nSONG, and CARMENES spectrographs to analyze ten planet candidates with intermediate\r\norbital periods. I find that testing an extensive baseline of radial velocities for consistency\r\nwith Keplerian orbits is crucial to rule out or confirm planets around luminous giants. While\r\nthe signals of seven stars are intrinsically induced, I identify a long-period planet candidate\r\norbiting HIP 64823. Finally, I present first results of the new échelle spectrograph mounted\r\nat the Waltz telescope at Landessternwarte, Heidelberg, demonstrating its potential for\r\ndetecting planets around giants."^^ . "2025" . . . . . . . "Dane Marvin"^^ . "Späth"^^ . "Dane Marvin Späth"^^ . . . . . . "A Critical Appraisal of Planets Orbiting Giant Stars (PDF)"^^ . . . "dissertation_spaeth.pdf"^^ . . . "A Critical Appraisal of Planets Orbiting Giant Stars (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "A Critical Appraisal of Planets Orbiting Giant Stars (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "A Critical Appraisal of Planets Orbiting Giant Stars (Other)"^^ . . . . . . "preview.jpg"^^ . . . "A Critical Appraisal of Planets Orbiting Giant Stars (Other)"^^ . . . . . . "medium.jpg"^^ . . . "A Critical Appraisal of Planets Orbiting Giant Stars (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #36740 \n\nA Critical Appraisal of Planets Orbiting Giant Stars\n\n" . "text/html" . . . "520 Astronomie"@de . "520 Astronomy and allied sciences"@en . .