Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Differential rotation from light curves – FDL 2020
Search
Brett Morris
June 11, 2020
Science
0
12
Differential rotation from light curves – FDL 2020
Presentation for the FDL 2020 Heliophysics/Starspots team.
Brett Morris
June 11, 2020
Tweet
Share
More Decks by Brett Morris
See All by Brett Morris
Interactive Data Visualization and Analysis with jdaviz – .Astronomy 12 (2023)
brettmorris
0
42
Fading Memories of Magnetic Youths – WE-Heraeus-Seminar (2023)
brettmorris
0
36
Benchmarks for stellar magnetic activity – ISSI 2022
brettmorris
0
7
Intro to Leave One Out Cross Validation – LMU 2022
brettmorris
0
44
The Stellar Variability Noise Floor – ISSI 2021
brettmorris
0
32
Olin Wilson Legacy Survey (OWLS) – APO Symposium 2021
brettmorris
0
7
Occulted Active Regions – NASA ExoPAG 2021
brettmorris
0
7
The Solar Activity Cycle & Kepler – FDL 202
brettmorris
0
3
Dissertation (2019): The Effects of Stellar Magnetic Activity and Variability on Observations of Exoplanets
brettmorris
0
15
Other Decks in Science
See All in Science
名古屋市立大学データサイエンス学部 夏のオープンキャンパス模擬授業20230818
ncu_ds
0
1.5k
研究・教育・産学連携の循環の実践
sshimizu2006
0
240
O ChatGPT e outras IAs vão mudar toda a pesquisa científica
cardososampaio
0
180
SCOTT: Self-Consistent Chain-of-Thought Distillation
meshidenn
0
330
Endocannabinology 101
drbonci
PRO
0
260
SIGDIAL論文読み会: PGTask: Introducing the Task of Profile Generation from Dialogues
kaiyo3
0
110
FIBA W杯の日本代表って組み合わせ次第で2次ラウンド行けたんじゃね?をデータで検証
saltcooky12
0
210
LCG20
lcolladotor
0
220
Machine Learning for Materials (Lecture 1)
aronwalsh
1
1.5k
DEIM2024 チュートリアル ~AWSで生成AIのRAGを使ったチャットボットを作ってみよう~
yamahiro
3
740
Design of three-dimensional binary manipulators based on the KS statistic and maximum empty circles (IECON2023)
konakalab
0
250
A Theory of Scrum Team Effectiveness 〜『ゾンビスクラムサバイバルガイド』の裏側にある科学〜
bonotake
14
5.4k
Featured
See All Featured
Scaling GitHub
holman
457
140k
Building a Scalable Design System with Sketch
lauravandoore
457
32k
Designing Experiences People Love
moore
136
23k
Cheating the UX When There Is Nothing More to Optimize - PixelPioneers
stephaniewalter
275
13k
Done Done
chrislema
178
15k
Helping Users Find Their Own Way: Creating Modern Search Experiences
danielanewman
21
2k
Six Lessons from altMBA
skipperchong
22
3k
jQuery: Nuts, Bolts and Bling
dougneiner
60
7.2k
BBQ
matthewcrist
80
8.8k
The Cult of Friendly URLs
andyhume
74
5.7k
10 Git Anti Patterns You Should be Aware of
lemiorhan
649
58k
Designing on Purpose - Digital PM Summit 2013
jponch
111
6.5k
Transcript
Differential rotation from light curves Brett Morris Universität Bern
Galileo (1612)
Spot latitudes and spot evolution encode information.
NASA SDO
Solar activity cycle Morris+ 2019
None
Light curves have amplitudes and periods
TESS Light Curve (days) Morris+ 2020 (in prep)
Morris 2020
Light Curve Inferred Fractional Spot Coverage f s Inferred Spot
Map Morris 2020
Differential rotation and spot evolution produce similar effects on light
curves.
None
Real spots have lifetimes similar to the rotation period.
None
Challenges to measuring stellar differential rotation from light curves •
The periodic signal we’re trying to measure only lasts one cycle, so harmonic analyses fail • Spot evolution and differential rotation are happening at the same time • We don’t know stellar inclinations in general