Exoplanets - Guided Notes

.docx

School

Chaffey College *

*We aren’t endorsed by this school

Course

35

Subject

Astronomy

Date

Jan 9, 2024

Type

docx

Pages

4

Uploaded by MateMongoose804

Guided Notes – Exoplanets Name: Leah Walker These notes cover slides 7 - 14 of Video Lecture – Exosystems . For slides 7 - 14 please type or handwrite notes as you watch the video lecture and answer the included questions. Exoplanets: An exoplanet, also known as an extrasolar planet, is a planet that orbits a star outside of our solar system. Since 1995, thousands of exoplanets have been discovered, and they come in different sizes, compositions, and orbits. Some are similar to Earth, while others are gas giants like Jupiter. Scientists are interested in finding exoplanets in the habitable zone of their star, where conditions are suitable for liquid water to exist on the planet's surface. This makes it a potential candidate for supporting life.
Test Yourself: Selection Effects Which of these would make it easier to see an exoplanet? A) planet is close to its star B) planet is far from its star C) planet is made of gas D) planet is made of rock Your answer: planet is far from its star Radial Velocity Method: The Radial Velocity Method detects exoplanets by observing the Doppler shift of a star's spectrum. It relies on observing the spectra of stars for signs of "wobble" caused by the presence of planets. This method involves looking for signs of movement in a star and has a high success rate for identifying exoplanets. It allows for the direct measurement of the eccentricity of the planet's orbit, but requires a high signal-to-noise ratio spectra for precision. It is generally used to look for low-mass planets around nearby stars.
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help