Tony Zhao 2015

Dem’ Exoplanets Tho’

Feat. TrES-3b

Exo- outside, outer, out of

Ayyo wut’s an exoplanet

http://img11.deviantart.net/72bc/i/2013/215/e/1/exoplanets_2_by_melissasoup-d6gk0xw.png

Ayyo why should I care ‘bout ‘em

YOU AIN’T GOT NO PLANETAFTER EARTH RIGHT NOW

http://orig09.deviantart.net/17b2/f/2010/277/e/8/earth_destruction_by_kallestar23-d301wgd.jpg

Direct imaging

Radial velocityAstrometryMicrolensing

Ayyo so how we gonna’ find dem’

Transit

Ayyo so how dat transit method work tho’

As the planet crosses the star, a dip in brightness can be observed

http://sites.psu.edu/tgg119/wp-content/uploads/sites/661/2013/01/OSNanimkurzloop.gif

Main goal: Extrapolate the

radius of the planet.

Ayyo, wut chu’ tryna’ do tho’Other goal:

Determine other properties of star and planet and how they affect

the curve

Meet TrES-3B

That one™

Ayyo, how dat work tho’

Where cho’ data at

Fraction of

Light blocked

____________________ _____Transit time

How chu’ calculate radius tho’

𝐴=𝜋 𝑟2Fraction of light blocked =𝐴𝑝𝑙𝑎𝑛𝑒𝑡

𝐴𝑠𝑡𝑎𝑟

𝑅𝑝𝑙𝑎𝑛𝑒𝑡2

𝑅𝑠𝑡𝑎𝑟2

#DemMathSkills

Transit time

More forms of data and stuff

After calculations.

Radius =

TrES-3b

71364 kmor

1.02 Radius

Jupiter

http://astro.unl.edu/naap/esp/animations/transitSimulator.html

Important variables• Radius of planet• Radius of Star• Mass of Star• Semi-major Axis• System Inclination

Dem’ Secondary Objectives

•Transit method works to determine the radius of the planet•From that, a great deal of other properties can be inferred.

Dat Conclusion tho’

This be the end

• Kallestar23. "Earth Destruction." DeviantArt. DeviantArt, 2010. Web. 20 July 2015.

• DeStefono, Melissa. "Exoplanets 2." DeviantArt. DeviantArt, Feb. 2013. Web. 20 July 2015.

• NAAP. "Transit Simulator - Extrasolar Planets - NAAP." Transit Simulator - Extrasolar Planets - NAAP. University of

Nebraska- Lincoln, 25 July 2007. Web. 20 July 2015. • Bisque, Matthew L. CCDSoft. Vers. 5.00.216. Computer

software. Software Bisque, 2013. Windows 7, 99.2 MB, download.

• Python. Vers. 2.7.2. Computer software. Python Software Foundation, 2013. Windows 7, 20.7 MB, download.

Dem citations