Astrophysics of Interstellar Matter
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10 years 6 months ago
Since the 14th of August, the Planck satellite has departed from its observing orbit. This was the first of a series of steps followed by the switching off, on the 19th of October, of the science instruments on board: HFI (High Frequency Instrument) and LFI (Low Frequency Instrument). On Wednesday the 23rd of October, that is 1624 days after launch, communication with the Planck satellite ceased.
10 years 8 months ago
After 1,554 days in space, the Planck satellite has completed its observations on 14 August 14th, 2013. If the high frequency instrument HFI stopped operating on January 14th, 2012, the low frequency instrument LFI was able to work around an additional 600 days as its operating temperature is much higher than HFI. There remains to "park" the satellite in the solar system before saying goodbye.
18 years 3 months ago
Triggered massive-star formation on the borders of Galactic HII regions. II. Evidence for the collect and collapse process around RCW 79, by A. Zavagno, L. Deharveng, F. Comeron, J. Brand, F. Massi, J. Caplan, and D. Russeil. Astronomy & Astrophysics.