Which exoplanet was the first comfirmed discovery?

  • Context: High School 
  • Thread starter Thread starter kop442000
  • Start date Start date
  • Tags Tags
    Discovery Exoplanet
Click For Summary
SUMMARY

The first confirmed discovery of an exoplanet is attributed to the detection of a planet orbiting the pulsar PSR B1257+12 in 1992 by Wolszczan and Frail, although some sources credit the discovery of a planet around the star 51 Pegasi by Michel Mayor and his team in 1995 as the first exoplanet found around a main-sequence star. The debate arises from the nature of the parent stars, with the pulsar's planets being considered potentially second-generation due to their formation from a proto-planetary disk after the pulsar's creation. This distinction impacts the relevance of these findings in models of planetary formation.

PREREQUISITES
  • Understanding of exoplanet classification and discovery history
  • Familiarity with pulsars and their characteristics
  • Knowledge of planetary formation theories
  • Awareness of key astronomical research papers, such as those by Wolszczan and Mayor
NEXT STEPS
  • Research the discovery of exoplanets around pulsars, focusing on PSR B1257+12
  • Study the implications of second-generation planets on planetary formation theories
  • Examine the methodologies used in the detection of exoplanets, particularly in the 1990s
  • Explore the significance of the Astrophysical Journal articles by Banit et al. and Wolszczan et al.
USEFUL FOR

Astronomers, astrophysicists, and students interested in exoplanet research and the history of astronomical discoveries.

kop442000
Messages
32
Reaction score
0
Hi everyone.

I am trying to find out which is the first comfirmed discovery of an exoplanet. When I look on the web, I find some sources telling me it was the one found around peg51 by Michel Mayor and team in 1995, but others saying it was the one found around pulsar PSR B1257+12 in 1992.

Does anyone know for sure? Or know why there is disagreement?

Many thanks for any replies posted.
Kop442000
 
Astronomy news on Phys.org
Their parent star being a binary pulsar invites debate over the origin of the planets. They are believed to have formed from a proto-planetary disk formed after the pulsar was created (Banit, M. et. Al., Astrophysical Journal, 415, pp 779-796, 1993.). More recently a third planet was discovered round the pulsar and the suggestion that they are second generation planets has been cast into doubt. Now there is the suggestion they could be the original planets that survived the death of their parent star (Wolszczan, A. et. Al., Astrophysical Journal, 540, pp 41, 2000.), in which case they are very interesting in terms of extrapolating current theories beyond the life of the more massive stars.

But essentially the fact that they are objects orbiting a dead star is the source of the debate. Its debatable how useful it is in helping design models of planetary formation in young stars.
 
thank you for you reply!
 

Similar threads

High School Nobel Prize for first exoplanet discovery
  • · Replies 6 ·
Replies
6
Views
3K
High School How to use the Binary Mass Function for exoplanets?
  • · Replies 4 ·
Replies
4
Views
2K
High School The search for habitable exoplanets in Alpha Centauri
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad The Trouble with TESS: Examining its Limitations in Exoplanet Observations
  • · Replies 2 ·
Replies
2
Views
2K
High School Unusual Exoplanet Discovery Using Star Pulsations: KIC 7917485b
  • · Replies 3 ·
Replies
3
Views
3K
High School Exoplanets - Suspicious evidence and fantastical conclusions
  • · Replies 21 ·
Replies
21
Views
5K
High School IB Extended Essay in Astrophysics
  • · Replies 4 ·
Replies
4
Views
6K
High School Saturn's 145 Moons: The Latest Discoveries and What Sets Them Apart
  • · Replies 16 ·
Replies
16
Views
5K
Writing: Input Wanted Postulating Life on Jupiter's moon Europa
  • · Replies 7 ·
Replies
7
Views
4K
High School Kepler22b-first exoplanet found in hab-zone of sun-like star
  • · Replies 37 ·
2
Replies
37
Views
15K