Nebulae

Star Birth NGC 2467

An extremely active stellar nursery glows in deep reddish tones in this Gemini view of NGC 2467 in the southern constellation of Puppis. The image displays a striking array of features that illustrate multiple phases of star birth. In the lower right, young stars are emitting hot radiation, exciting the nearby gas and causing it to glow and revealing denser gas and dust clouds. Dust lanes and dark globules mark sites of future star formation. A cluster of young stars dominates the left edge of the field of view.

AO Demo Image

These images are of the central region of NGC 6934, a globular cluster located 50,000 light years from Earth. Globular clusters are extremely dense stellar environments that typically contain between one hundred thousand to one million stars. The density of these star cities presents us with a wealth of information on stars of all sizes but also presents a great challenge: how can we peer into the very heart of such a dense star cluster?

Adaptive Optics Comparison

Remarkable details in the core of the globular cluster M-13 are revealed in a new image obtained with the Gemini Observatory's new Altair adaptive optics system at the Frederick C. Gillett Telescope (Gemini North) on Hawaii's Mauna Kea. The razor-sharp Gemini image is shown in the upper right of the above sequence that also includes a wide-field view of the cluster (and blow-up of the core) as imaged by the Canada-France-Hawai`i Telescope also on Mauna Kea.

Stellar Gusts From AFGL 2591

AFGL 2591 is located within the Milky Way more than 3,000 light-years from Earth, in the constellation of Cygnus. Over the course of the last few thousand years, it has created a vast expanding nebula larger than 500 times the diameter of our solar system. The star is at least 10 times the size of the Sun, and over 20,000 times as bright, but perhaps only one million years old. The wispy white and blue structure in the expanding nebula to the right of the young star is a huge outflow of gas and dust driven by the infall of material onto the star's surface.

Brown Dwarf Around Sun-like Star (15 Sge)

The Gemini North Telescope using the University of Hawaii's Hokupa'a adaptive optics system found a very faint companion orbiting around 15 Sge (left). The same Gemini data have been processed to show the brown dwarf companion more clearly (right). The brown dwarf lies only 0.8 arc seconds from the primary. (The fainter ripples are artifacts of the image processing.) The brown dwarf is located at about the 7:00 position on these images. Gemini-North adaptive optics image of 15 Sge and its newly found companion (15 Sge B).

IRS-8 Bow-Shock

The object, known by the unglamorous name of IRS8, was only an ill-defined smudge until Gemini came along. Now, the Gemini telescope's advanced optics show that IRS8 appears to be a star that is plowing through a poorly understood gas and dust cloud near the galactic center. Moving relative to the cloud, the star creates a very obvious bow-shock wave, similar to the wave that forms in front of a boat as it goes through water.

See Image Release for details

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