Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Extrasolar planets.

J J Lissauer1, G W Marcy, S Ida

  • 1Space Science Division, National Aeronautics and Space Administration, Ames Research Center, Moffett Field, CA 94035, USA. lissauer@ringside.arc.nasa.gov

Proceedings of the National Academy of Sciences of the United States of America
|October 18, 2000
PubMed
Summary

The discovery of extrasolar planets reveals massive gas giants orbiting close to their stars, challenging current planet formation theories. These findings necessitate modifications to existing models to explain observed exoplanetary system properties.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Perirenal fat thickness as a predictor of postoperative complications after laparoscopic distal gastrectomy for gastric cancer.

BJS open·2020
Same author

Laparoscopic proximal gastrectomy with double-flap technique versus laparoscopic subtotal gastrectomy for proximal early gastric cancer.

BJS open·2020
Same author

Tuning the type of nitrogen on N-RGO supported on N-TiO<sub>2</sub> under ultrasonication/hydrothermal treatment for efficient hydrogen evolution - A mechanistic overview.

Ultrasonics sonochemistry·2020
Same author

Association between Sarcopenia and Overactive Bladder in Elderly Diabetic Patients.

The journal of nutrition, health & aging·2019
Same author

Ultrasonically aided selective stabilization of pyrrolic type nitrogen by one pot nitrogen doped and hydrothermally reduced Graphene oxide/Titania nanocomposite (N-TiO<sub>2</sub>/N-RGO) for H<sub>2</sub> production.

Ultrasonics sonochemistry·2019
Same author

The seventh inner moon of Neptune.

Nature·2019

Area of Science:

  • Astronomy
  • Astrophysics
  • Exoplanetary Science

Background:

  • The first extrasolar planet orbiting a Sun-like star was detected in 1995.
  • Over two dozen extrasolar planets have since been identified using Doppler spectroscopy.

Purpose of the Study:

  • To analyze the characteristics of detected extrasolar planets.
  • To evaluate prevailing theories of star and planet formation against observational data.

Main Methods:

  • Detection of extrasolar planets via periodic variations in stellar Doppler shift.
  • Characterization of planet mass, orbital distance, and orbital path.

Main Results:

  • All detected extrasolar planets are more massive than Saturn, with most exceeding Jupiter's mass.

Related Experiment Videos

  • Many planets orbit closer to their stars than Mercury orbits the Sun.
  • Several planets exhibit highly elliptical orbits.

    • Conclusions:

    • Current planet formation models, based on Solar System observations, require adjustments.
    • The properties of observed extrasolar planetary systems present a challenge to existing theories.