Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Differential rotation from light curves – FDL ...

Brett Morris
June 11, 2020
Science
0
16

Differential rotation from light curves – FDL 2020

Presentation for the FDL 2020 Heliophysics/Starspots team.

Brett Morris

June 11, 2020
Tweet

More Decks by Brett Morris

See All by Brett Morris
Interactive Data Visualization and Analysis with jdaviz – .Astronomy 12 (2023)
brettmorris
0
56
Fading Memories of Magnetic Youths – WE-Heraeus-Seminar (2023)
brettmorris
0
55
Benchmarks for stellar magnetic activity – ISSI 2022
brettmorris
0
11
Intro to Leave One Out Cross Validation – LMU 2022
brettmorris
0
57
The Stellar Variability Noise Floor – ISSI 2021
brettmorris
0
54
Olin Wilson Legacy Survey (OWLS) – APO Symposium 2021
brettmorris
0
10
Occulted Active Regions – NASA ExoPAG 2021
brettmorris
0
10
The Solar Activity Cycle & Kepler – FDL 202
brettmorris
0
6
Dissertation (2019): The Effects of Stellar Magnetic Activity and Variability on Observations of Exoplanets
brettmorris
0
34

Other Decks in Science

See All in Science
MoveItを使った産業用ロボット向け動作作成方法の紹介 / Introduction to creating motion for industrial robots using MoveIt
ry0_ka
0
200
Healthcare Innovation through Business Entrepreneurship
clintwinters
0
160
重複排除・高速バックアップ・ランサムウェア対策 三拍子そろったExaGrid × Veeam連携セミナー
climbteam
0
140
科学で迫る勝敗の法則(名城大学公開講座．2024年10月) / The principle of victory discovered by science (Open lecture in Meijo Univ. 2024)
konakalab
0
230
Science of Scienceおよび科学計量学に関する研究論文の俯瞰可視化_LT版
hayataka88
0
1k
Analysis-Ready Cloud-Optimized Data for your community and the entire world with Pangeo-Forge
jbusecke
0
120
Causal discovery based on non-Gaussianity and nonlinearity
sshimizu2006
0
200
教師なしテンソル分解に基づく、有糸分裂後の転写再活性化におけるヒストン修飾ブックマークとしての転写因子候補の抽出法
tagtag
0
140
(Forkwell Library #48)『詳解 インシデントレスポンス』で学び倒すブルーチーム技術
scientia
2
1.4k
学術講演会中央大学学員会八王子支部
tagtag
0
250
統計学入門講座 第1回スライド
techmathproject
0
150
化学におけるAI・シミュレーション活用のトレンドと 汎用原子レベルシミュレーター: Matlantisを使った素材開発
matlantis
0
320

Featured

See All Featured
A Philosophy of Restraint
colly
203
16k
The Invisible Side of Design
smashingmag
299
50k
Code Review Best Practice
trishagee
65
17k
Building Applications with DynamoDB
mza
91
6.1k
Git: the NoSQL Database
bkeepers
PRO
427
64k
Gamification - CAS2011
davidbonilla
80
5.1k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
18
2.3k
VelocityConf: Rendering Performance Case Studies
addyosmani
326
24k
The MySQL Ecosystem @ GitHub 2015
samlambert
250
12k
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
3
310
Mobile First: as difficult as doing things right
swwweet
222
9k
We Have a Design System, Now What?
morganepeng
51
7.3k

Transcript

  1. Differential rotation from light curves Brett Morris Universität Bern

  2. Galileo (1612)

  3. Spot latitudes and spot evolution encode information.

  4. NASA SDO

  5. Solar activity cycle Morris+ 2019

  6. None

  7. Light curves have amplitudes and periods

  8. TESS Light Curve (days) Morris+ 2020 (in prep)

  9. Morris 2020

  10. Light Curve Inferred Fractional Spot Coverage f s Inferred Spot

    Map Morris 2020

  11. Differential rotation and spot evolution produce similar effects on light

    curves.
  12. None

  13. Real spots have lifetimes similar to the rotation period.

  14. None

  15. 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