eprintid: 31269
rev_number: 14
eprint_status: archive
userid: 6502
dir: disk0/00/03/12/69
datestamp: 2022-02-24 08:33:59
lastmod: 2022-03-03 06:08:53
status_changed: 2022-02-24 08:33:59
type: doctoralThesis
succeeds: 31268
metadata_visibility: show
creators_name: Bluhm Ceballos, Paz Victoria
title: DETECTION AND CHARACTERIZATION OF EXOPLANETS AROUND M DWARFS IN THE PRESENCE OF STELLAR ACTIVITY
subjects: ddc-520
divisions: i-130001
adv_faculty: af-13
abstract: M dwarfs are the most numerous type of stars in the Universe. Their low masses and their large planet-to-star size ratios offer big advantages to study orbiting exoplanets around these stars. On one hand, the radial velocities signals have greater amplitudes and are easier to identify than in FGK stars. On the other, the small size of M dwarfs leads to transiting planets leaving a stronger imprint in the light curve. Additionally, their low temperatures places their habitable zone close to the host star, which makes them excellent targets to search for temperate or habitable worlds.
Despite the advantages that M dwarfs offer, these do not come for free. Typically they are active entities, and most of the M-dwarfs have strong magnetic fields, which can heat
their stellar chromospheres, creating magnetic activity which drives the occurrence of stellar spots in their photosphere. Consequently, stellar activity can mimic the signal of an orbiting planet which is one of the most problematic sources of noise.
This thesis is focused on the discovery and characterization of exoplanets around M dwarfs,
where I highlight the importance of careful modeling of the intrinsic stellar noise present in
the data for to avoid false planet claims
date: 2022
id_scheme: DOI
id_number: 10.11588/heidok.00031269
ppn_swb: 1794418091
own_urn: urn:nbn:de:bsz:16-heidok-312696
date_accepted: 2022-02-15
advisor: HASH(0x55fc36baddf8)
language: eng
bibsort: BLUHMCEBALDETECTIONA2022
full_text_status: public
place_of_pub: Heidelberg
citation:   Bluhm Ceballos, Paz Victoria  (2022) DETECTION AND CHARACTERIZATION OF EXOPLANETS AROUND M DWARFS IN THE PRESENCE OF STELLAR ACTIVITY.  [Dissertation]     
document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/31269/13/FINAL.pdf