Gemini Planet Imager Captures Its First Direct Picture of an Extrasolar Planet: PHOTO
Teams at the Gemini Observatory in Chile announced the functionality of their long-awaited Gemini Planet Imager by releasing the above picture, the first in what is expected to become a string of exoplanet images from across the galaxy. Gizmodo reports:
Acquired by the world's most powerful planet-hunting instrument, the Gemini Planet Imager, it shows a 10-million-year-old planet called Beta Pictorus orbiting its giant parent star [at a distance of 63 light years from Earth]. It's the first such image to come from Gemini, which has been under development for over a decade but is only now producing data like this.
The Imager detects infrared radiation to readily spot young planets, whose post-formation afterglow is in that part of the spectrum, while masking light emitted by parent stars that can often interfere with images.
While only around a dozen exoplanets have been directly photographed to date, the Gemini’s advanced technology is enabling its team to already begin analyzing 600 other young stars and the planets that surround them.
The Imager has also taken some impressive shots of polarized light of stars and Jupiter's moon Europa. Check them out, AFTER THE JUMP...
Via the observatory's website: Gemini Planet Imager’s first light image of the light scattered by a disk of dust orbiting the young star HR4796A. This narrow ring is thought to be dust from asteroids or comets left behind by planet formation; some scientists have theorized that the sharp edge of the ring is defined by an unseen planet. The left image (1.9-2.1 microns) shows normal light, including both the dust ring and the residual light from the central star scattered by turbulence in the Earth’s atmosphere. The right image shows only polarized light. Leftover starlight is unpolarized and hence removed from this image. The light from the back edge of the disk is strongly polarized as it scatters towards us.
Via the observatory's website: Comparison of Europa observed with Gemini Planet Imager in K1 band on the right and visible albedo visualization based on a composite map made from Galileo SSI and Voyager 1 and 2 data (from USGS) on the left. While GPI is not designed for ‘extended’ objects like this, its observations could help in following surface alterations on icy satellites of Jupiter or atmospheric phenomena (e.g. clouds, haze) on Saturn’s moon Titan. The GPI near-infrared color image is a combination of 3 wavelength channels.