Stellar kinematics in surveys and simulations

Daniel Mikkola

Stellar kinematics in surveys and simulations

Daniel Mikkola

Forskningsoutput: Avhandling › Doktorsavhandling (sammanläggning)

173 Nedladdningar (Pure)

Sammanfattning

Vi studerar stjärnors rörelser i Vintergatan med N-body simuleringar och stora astrometriska dataset från ESAs rymdteleskop Gaia. Vi identifierar två kinematiska populationer för vita dvärgar i Solens kvarter. Vi undersöker även ansamlade halon och avslöjar två nya hastighetsstrukturer. Slutligen, våra simuleringar visar att radiell migrering som en funktion av vertical action beror på diskmassa.

Originalspråk	engelska
Kvalifikation	Doktor
Tilldelande institution
Handledare	Hobbs, David, handledare Mcmillan, Paul, Biträdande handledare
Tilldelningsdatum	2022 nov. 18
Utgivningsort	Lund
Förlag	Lund Observatory, Lund University
ISBN (tryckt)	9789180394116
ISBN (elektroniskt)	9789180394123
Status	Published - 2022

Bibliografisk information

Defence details
Date: 2022-11-18
Time: 13:00
Place: Lundmarksalen, Astronomihuset, Sölvegatan 27, Lund. Join via zoom: https://lu-se.zoom.us/j/63479321502
External reviewer(s)
Name: Martig, Marie
Title: Doctor
Affiliation: Astrophysics Research Institute, Liverpool John Moores University
---

Ämnesklassifikation (UKÄ)

Astronomi, astrofysik och kosmologi

Fria nyckelord

Galactic dynamics
stellar dynamics
simulations
Gaia

Tillgång till dokument

kappaPublicerad version, 13,2 MBLicens: CC BY-NC-SA
Complete versionLicens: CC BY-NC-SA

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2 Artikel i vetenskaplig tidskrift

The velocity distribution of white dwarfs in Gaia EDR3
Mikkola, D., Mcmillan, P. J., Hobbs, D. & Wimarsson, J., 2022, I: Monthly Notices of the Royal Astronomical Society. 512, 4, s. 6201-6216 16 s.
Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

Öppen tillgång
Radial migration and vertical action in N-body simulations
Mikkola, D., McMillan, P. J. & Hobbs, D., 2020, I: Monthly Notices of the Royal Astronomical Society. 495, 3, s. 3295-3306 12 s.
Forskningsoutput: Tidskriftsbidrag › Artikel i vetenskaplig tidskrift › Peer review

Öppen tillgång

1 Avslutade

Stellar kinematics in surveys and simulations
Mikkola, D. (Forskarstuderande), Hobbs, D. (Handledare) & Mcmillan, P. (Biträdande handledare)
2017/10/02 → 2022/11/18
Projekt: Avhandling

Citera det här

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title = "Stellar kinematics in surveys and simulations",

abstract = "We study stellar motions in the Milky Way with N-body simulations and large astrometric samples from ESA's Gaia mission. We identify two kinematic populations for white dwarfs in the Solar neighbourhood. We also investigate the accreted halo and reveal two new structures. Finally, our simulations show that radial migration as a function of vertical action depends on disc mass.",

keywords = "Galactic dynamics, stellar dynamics, simulations, Gaia, Galactic dynamics, Stellar kinematics, Numerical simulations, Statistical methods, Solar neighborhood",

author = "Daniel Mikkola",

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N1 - Defence details Date: 2022-11-18 Time: 13:00 Place: Lundmarksalen, Astronomihuset, Sölvegatan 27, Lund. Join via zoom: https://lu-se.zoom.us/j/63479321502 External reviewer(s) Name: Martig, Marie Title: Doctor Affiliation: Astrophysics Research Institute, Liverpool John Moores University ---

PY - 2022

Y1 - 2022

N2 - We study stellar motions in the Milky Way with N-body simulations and large astrometric samples from ESA's Gaia mission. We identify two kinematic populations for white dwarfs in the Solar neighbourhood. We also investigate the accreted halo and reveal two new structures. Finally, our simulations show that radial migration as a function of vertical action depends on disc mass.

AB - We study stellar motions in the Milky Way with N-body simulations and large astrometric samples from ESA's Gaia mission. We identify two kinematic populations for white dwarfs in the Solar neighbourhood. We also investigate the accreted halo and reveal two new structures. Finally, our simulations show that radial migration as a function of vertical action depends on disc mass.

KW - Galactic dynamics

KW - stellar dynamics

KW - simulations

KW - Gaia

KW - Galactic dynamics

KW - Stellar kinematics

KW - Numerical simulations

KW - Statistical methods

KW - Solar neighborhood

M3 - Doctoral Thesis (compilation)

SN - 9789180394116

PB - Lund Observatory, Lund University

CY - Lund

ER -

Stellar kinematics in surveys and simulations

Sammanfattning

Bibliografisk information

Ämnesklassifikation (UKÄ)

Fria nyckelord

Tillgång till dokument

Andra filer och länkar

Fingeravtryck

Forskningsoutput

The velocity distribution of white dwarfs in Gaia EDR3

Radial migration and vertical action in N-body simulations

Projekt

Stellar kinematics in surveys and simulations

Citera det här