expertenaustausch > sci.* > sci.astronomie

Roger Roesler (30.01.2020, 21:22)
Heute wurde das überragende Infrarot-Weltraumteleskop Spitzer, benannt
nach dem US-Astronomen Lyman Spitzer, für immer abgeschaltet. Damit
haben sich die Augen für den Blick in die Unendlichkeit und in die
fernste Vergangenheit des Universums geschlossen. Lasset uns trauern um
diesen unersetzlichen Verlust.

WIR DANKEN DIR, SPITZER! Ja, Spitzer war Spitze.

Das ist die Homepage von Spitzer:
<http://www.spitzer.caltech.edu/>

Mögest Du in der Unendlichkeit Deine verdiente Ruhe finden. Möge Manitu
Dir gnädig sein. ;-( Nun sind wir wieder völlig allein im Kosmos. 8-O

| RIP Spitzer, the Coolest Heat Telescope in the Solar System
| WIRED
<https://www.wired.com/story/rip-spitzer-telescope/>
| 19 hours ago ... On Thursday afternoon, NASA operators will send a
| farewell missive to the Spitzer Space Telescope from the big antenna
| at the Goldstone ...
Roger Roesler (04.02.2020, 22:15)
Frank Feger <frank> typed:

> Am 30.01.20 um 20:22 schrieb Roger Roesler:
> Es ist zwar ein Verlust, aber unersetzlich ist es nicht. Das, was in
> der "Spitzer Warm Mission" gemacht werden konnte, wird das James-Webb-
> Teleskop auch können, und das, was in der "Cold Mission" möglich war,
> nicht aber dem JWST, dürfte irgendwann von einem Nachfolger übernommen
> werden.


Sie haben sich ja ein schattiges Plätzchen im Sonnensystem ausgesucht:
den L2-Lagrange-Punkt.

| *How NASA's Webb Telescope Will* *Continue* *Spitzer's* *Legacy*
<https://www.jpl.nasa.gov/news/news.php?feature=7579>

| *FAQ for Scientists Webb Telescope/NASA*

| Webb possesses a combination of large aperture, diffraction-limited
| image quality, and infrared sensitivity over a broad wavelength range
| hitherto not available from ground- or space-based facilities. Webb
| has a larger collecting area than Hubble and its capabilities extend
| to longer wavelengths in the infrared. Webb is also much larger than
| *Spitzer*, providing greater sensitivity and finer angular resolution
| at wavelengths shorter than 28.5 microns. With multi-object and
| integral field spectroscopy, Webb's instruments provide capability
| that Hubble and *Spitzer* don't have. Its capabilities will let us
| understand the full population of galaxies at redshifts from 6 to 10
| (for example to determine why we are finding early galaxies that are
| brighter and older than some theoretical predictions) and to detect
| the first galaxies to form as early as redshift 15. Webb is also
| needed to explore the assembly of galaxies and their nuclear black
| holes and how they are inter-related through processes such as
| feedback. It will trace the earliest stages of stellar evolution,
| penetrating the dense cold cloud cores where stars are born. It will
| obtain spectra to reveal the conditions in protoplanetary disks and to
| search for biologically important molecules, and will map the
| evolution of planetary systems by imaging debris disks and by studying
| exoplanets through coronagraphic imaging and transit spectroscopy.
<https://jwst.nasa.gov/content/forScientists/faqScientists.html>
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