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Binary Star Systems

Cosmos Group 6 Presentation
by

Julia Jensen

on 5 May 2016

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Transcript of Binary Star Systems

Eclipsing Binary Star Systems
What are Binary Stars?
Why are Binary Stars Important?
Key Terms
Eclipse
Light Curve
The Table Top
Experiment
There are four types of binary star systems.
Presented by Connie Huynh, Julia Jensen, Nathan Mallipeddi and Michelle Silva
Eclipsing Binaries
Accurate measurements of stellar masses
Variety of phenomena in astronomy occur in binary systems
Possibility of forming habitable planets are decreased
Serve as an energy provider to passing stars
A light curve is a graph showing the variation in the light received over a period of time from a star or other celestial object.
SZ Her
Semi-detached
Only one star is visible due to eclipse

Computer Programming
idl - Interactive Data Language
Super Earth, believed to be close to a binary system.
What's Next?
Altering the ellipticity of the orbit or the viewing angle
Discovering new planets/objects
Figuring out if planets could support life
Produces different graphs, plots, shapes, and surfaces
Temperature, radii, area, mass, brightness, etc.
Set up an experiment
Light meter, various lightbulbs, planets, and rotating board
Measured the light at each point on the board
Recorded the data and created a light curve
Two stars orbiting around a common center of mass
Orbits are oriented so that one star can pass in front of the other as we view the system
Visual Binary Systems
Both stars can be viewed depending on where in the orbit they are
Astrometric Binary Systems
Only one star can be seen
Appears as one solitary star, but can be seen as two using Doppler shift
We took a field trip to the Lick Observatory on Mount Hamilton
We saw many telescopes, including the Nickel Telescope
We learned a lot about the way astronomers use telescopes
Mount Hamilton
Spectroscopic Binary Systems
The Nickel Telescope was operated from the UCSC campus
We took pictures and gathered data of SZ Her
DS9, an image analyzing software, was used to alter the images taken in order to gather information
Remotely Operating the Nickel Telescope
In Conclusion
We researched, took pictures with a telescope, set up a table top experiment, and worked with and improved a program to simulate a binary system
We learned that binary systems are a crucial part of our universe
We used an online binary system simulator in order to understand binary movement and what affects it
Research Findings
1/3 of stars in the Milky Way Galaxy are part of binary or multiple systems
Mass can be directly determined only from its gravitational attraction
Orbital period can be less than an hour, or a few days, but some last hundreds of thousands of years
An Example of an Eclipsing Binary
Thank You!
Professor Raja Guha Thakurta
Meredith Muller
An eclipse occurs when an object partially or completely blocks another, obscuring the light of the objects
...and everyone else!
Contact us!
Connie:
huynhconnie6657@students.esuhsd.org
Julia:
julia.rose5678@gmail.com
Nathan:
mallipeddi.nathan@gmail.com
Michelle:
marymichellesilva@gmail.com
Full transcript