Call for Letters of Intent: Next generation instrument for 3.5m

  callforletters

Call for letters of intent for the construction of the next generation instrument for CAHA 3.5m telescope

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Calar Alto Instrumentation Workshop Summary

 

workshopsummary

The Intrumentation Workshop Summary is here.

NGC 7331: a large spiral galaxy

teaser_7331 The spiral galaxy NGC 7331, in Pegasus, can be seen with small telescopes under dark skies as a faint fuzzy spot. It is an island universe similar to our own Galaxy (or maybe somewhat larger) and placed at a distance of 50 million light-years. NGC 7331 was discovered by Wilhelm Herschel in 1784, and it shows all its magnificence in long-exposure photographs taken through large telescopes. This Calar Alto image offers one of the best snapshots ever obtained of this stellar system...

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The beautiful death

sandin_teaser Even stars have a life cycle. Less massive stars, like the Sun, end their lives blowing away most of their mass in an intense stellar wind, which eventually, and briefly, is surrounded by a beautifully coloured cloud, a so-called planetary nebula. During this process, dying stars enrich the interstellar medium with chemical elements, which will participate in a new generation of stars, planets, and in at least one case, life. The outer parts of planetary nebulae contain valuable information on the important mass loss process. A research team from Potsdam has just published groundbreaking work deciphering the details of this phase of stellar evolution. Their exploration of the halos of five planetary nebulae has been possible thanks to the exceptional capabilities of the PMAS spectrograph that is attached to the Calar Alto 3.5 m telescope

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