Gravitational lens

Gravitational lens

R932/0049 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 8.5MB

Downloadable file size: 189.9KB

Price image Pricing

Please login to use the price calculator

This image is part of the feature B B C


Caption: Gravitational lens. Diagram showing the principles behind a gravitational lens. Light from a distant star (top left) is bent by the gravitational field of a free-floating planet (black, centre). As the planet passes between the star and the Earth, the focusing of the light causes an increase (peak at lower right) in the star's observed brightness. The duration of this increase reveals the mass of the planet. For small masses, the effect is called microlensing. Gravitational microlensing is a way to detect the non-luminous portion of dark matter. This also includes objects such as neutron stars and black holes (stellar remnants), or brown dwarf stars (small stars that failed to ignite).

Release details: Model release not required. Property release not required.

Keywords: artwork, astronomical, astronomy, astrophysics, baryonic, bending, bent, brightness, cosmology, dark matter, detecting, detection, diagram, exoplanet, extrasolar, focusing, focussing, graph, gravitational lens, gravity, illustration, intensity, lensing, light, microlensing, observation, planet, planets, ray, rays, science, star, stars, technique

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.