Sökning: "Chemically peculiar"
Visar resultat 1 - 5 av 7 uppsatser innehållade orden Chemically peculiar.
1. Magnetic field of the magnetic chemically peculiar star V1148 Ori
Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomiSammanfattning : This project aims to obtain and interpret the measurements of the mean longitudinal magnetic field of the chemically peculiar star V1148 Ori. To achieve this aim 12 spectropolarimetric observations obtained by the CFHT using the spectropolarimeter ESPaDOnS were used. LÄS MER
2. Magnetic field of the Ap star EP UMa
Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomiSammanfattning : Magnetic fields play a crucial roll in the stellar activity and evolutionof stars. Despite much research there is much that we do notunderstand. Among Ap stars, empirical evidence has suggested a minimumthreshold for the dipolar magnetic field strength of Bp ≈ 300G. LÄS MER
3. The magnetic field of phi Draconis
Master-uppsats, Uppsala universitet/Observationell astrofysikSammanfattning : Within this past decade, advances in spectropolarimetric analyses allowed mapping surface characteristics of nearby non-resolved stars with unique characteristics. In this study, we attempt mapping of the magnetic field structure and surface distribution of elements for such a star, the magnetic Ap star phi Dra. LÄS MER
4. Magnetic field strength of chemically peculiar A and B-type stars
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutet för rymdfysik, UppsalaavdelningenSammanfattning : The goal of this work is to detect Zeeman split lines and measure magnetic field strength in a sample of Ap stars. This work aims to analyse spectra of 454 stars and find stars that show spectral lines resolved into their magnetically split components. LÄS MER
5. Investigation of variable Ap Stars in TESS continuous viewing zone
Master-uppsats, Uppsala universitet/Observationell astrofysikSammanfattning : .... LÄS MER