lpetrich
Contributor
The official website of the Nobel Prize - NobelPrize.org
That causes a big problem for awarding prizes: when several people worked on something, who deserves how much credit?
In 1995, Michel Mayor and Didier Queloz discovered a planet around a Sunlike star, 51 Pegasi, the first planet discovered to orbit a "normal" star.
51 Pegasi (Helvetios): mass = 1.11 MSun, radius = 1.24 RSun, luminosity = 1.36 LSun, temperature = 5768 K, age = 6.1 Gyr, spectral type = G2IV
Distance from Sun = 50 lyr / 15 pc
That planet is 51 Pegasi b (Bellerophon, Dimidium): distance = 0.0528 AU (1/19 AU), period = 4.24 d, equil. temp. = 1300 K - hot enough to glow
Consider a planet that orbits 51 Pegasi and that receives the same light flux from its star that the Earth receives from the Sun. Its distance = 1.17 AU, its period = 1.20 years
51 Peg b would have a maximum separation of 2.6 degrees and an apparent magnitude of around -15. It should easily be visible if 51 Peg is hidden from view, like during a total eclipse.
James Peebles helped work on parts of the Standard Model of Cosmology, the Lambda-CDM model, where the lambda in it is the amount of cosmological constant or dark energy, and the CDM is cold dark matter. In particular, JP worked on how dark matter contributes to the structure of the Universe, especially early in its history.This year's Physics Laureates are awarded ”for contributions to our understanding of the evolution of the universe and Earth’s place in the cosmos”, with one half to James Peebles “for theoretical discoveries in physical cosmology” and the other half jointly to Michel Mayor and Didier Queloz “for the discovery of an exoplanet orbiting a solar-type star.”
That causes a big problem for awarding prizes: when several people worked on something, who deserves how much credit?
In 1995, Michel Mayor and Didier Queloz discovered a planet around a Sunlike star, 51 Pegasi, the first planet discovered to orbit a "normal" star.
51 Pegasi (Helvetios): mass = 1.11 MSun, radius = 1.24 RSun, luminosity = 1.36 LSun, temperature = 5768 K, age = 6.1 Gyr, spectral type = G2IV
Distance from Sun = 50 lyr / 15 pc
That planet is 51 Pegasi b (Bellerophon, Dimidium): distance = 0.0528 AU (1/19 AU), period = 4.24 d, equil. temp. = 1300 K - hot enough to glow
Consider a planet that orbits 51 Pegasi and that receives the same light flux from its star that the Earth receives from the Sun. Its distance = 1.17 AU, its period = 1.20 years
51 Peg b would have a maximum separation of 2.6 degrees and an apparent magnitude of around -15. It should easily be visible if 51 Peg is hidden from view, like during a total eclipse.