The radial velocity method (artist’s impression)

The radial velocity method to detect exoplanet is based on the detection of variations in the velocity of the central star, due to the changing direction of the gravitational pull from an (unseen) exoplanet as it orbits the star. When the star moves towards us, its spectrum is blueshifted, while it is redshifted when it moves away from us. By regularly looking at the spectrum of a star - and so, measure its velocity - one can see if it moves periodically due to the influence of a companion.

Crediti:

ESO

A proposito dell'immagine

Identificazione:eso0722e
Tipo:Illustrazione
Data di pubblicazione:25 Aprile 2007
Notizie relative:eso0722
Dimensione:2374 x 1773 px

A proposito delll'oggetto

Nome:Radial velocity
Tipo:Unspecified : Planet
Categoria:Cosmology
Illustrations

Formati delle immagini

JPEG grande
339,4 KB

Sfondi

1024x768
106,7 KB
1280x1024
157,1 KB
1600x1200
197,2 KB
1920x1200
255,0 KB
2048x1536
287,6 KB

 

Vedere anche