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Wed09202017

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3-D fireworks of a star: Astronomers reconstruct journey of emitted gas

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3-D view of the remnant of Nova Persei 1901 (the green arrow points to Earth). (Credit: Liimets at al./ApJ)

Jan. 24, 2013 — In 1901 the star GK Persei gave off a powerful explosion that has not stopped growing and astonishing ever since. Now a team of Spanish and Estonian astronomers has reconstructed the journey of the emitted gas in 3D which, contrary to predictions, has hardly slowed down its speed of up to 1,000 km/s after all this time.

Thanks to the images captured from the Isaac Newton Telescope and the Nordic Optical Telescope in La Palma (Canary Islands, Spain), a European team of astronomers has constructed a three dimensional map of the remnant of a nova, or in other words, what was left of...

Next-generation adaptive optics brings remarkable details to light in stellar nursery

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This image, obtained during the late commissioning phase of the GeMS adaptive optics system, with the Gemini South AO Imager (GSAOI) on the night of Dec. 28, 2012, reveals exquisite details in the outskirts of the Orion Nebula. The large adaptive optics field-of-view (85 arcseconds across) demonstrates the system's extreme resolution and uniform correction across the entire field. The three filters used for this composite color image include [Fe II], H2, and, K(short)-continuum (2.093...

A cosmic holiday ornament, Hubble-style

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Planetary nebula NGC 5189. (Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA))

Dec. 18, 2012 — 'Tis the season for holiday decorating and tree-trimming. Not to be left out, astronomers using NASA's Hubble Space Telescope have photographed a festive-looking nearby planetary nebula called NGC 5189. The intricate structure of this bright gaseous nebula resembles a glass-blown holiday ornament with a glowing ribbon entwined.

Planetary nebulae...

Exploding star missing from formation of solar system

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Scientists in the University of Chicago’s Origins Laboratory are about to publish the latest in a series of papers about the origin of the solar system. Infant stars glow reddish-pink in this infrared image of the Serpens star-forming region, captured by NASA’s Spitzer Space Telescope. Four-and-a half billion years ago, the sun may have looked much like one of the baby stars deeply embedded in the cosmic cloud of gas and dust that collapsed to create it. (Credit...

Image of the Carina Nebula marks inauguration of VLT Survey Telescope

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The spectacular star-forming Carina Nebula has been captured in great detail by the VLT Survey Telescope at ESO’s Paranal Observatory. This picture was taken with the help of Sebastián Piñera, President of Chile, during his visit to the observatory on 5 June 2012 and released on the occasion of the new telescope’s inauguration in Naples on Dec. 6, 2012. (Credit: ESO. Acknowledgement: VPHAS+ Consortium/Cambridge Astronomical Survey Unit)

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