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#Spitzer

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Continued thread

Herbig-Haro 49/50 (Spitzer and Webb Images Side-by-Side)

This side-by-side comparison shows a Spitzer Space Telescope Infrared Array Camera image of HH 49/50 (left) versus a Webb image of the same object (right) using the NIRCam (Near-infrared Camera) instrument and MIRI (Mid-infrared Instrument).

science.nasa.gov/missions/webb

#astrophotography
#Spitzer
#JWST
#NASA

Continued thread

They observed WASP-12 b 45 times with #CHEOPS and used #TESS and #Spitzer data to study the phase curve including tidal deformation.

Why is tidal deformation important? If you don’t account for the shape, you’ll overestimate the density of your planet.

The phase curves allow to calculate the Love number which should tell us about the core mass fraction. Sadly not very well constrained, so we need #JWST for that instead. They’ll be doing that for WASP-103 b.

Featured in Nature's selection of the best #science images of the month: a composite image of the Cassiopeia A #supernova remnant that brings together data from several #NASA telescopes: X-rays from #Chandra, infrared from #JWST & #Spitzer, optical data from #Hubble.

nature.com/immersive/d41586-02

Credits:
X-ray: NASA/CXC/SAO
Optical: NASA/ESA/STScI
IR: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech
Image Processing: NASA/CXC/SAO/J. Schmidt (@spacegeck) and K. Arcand

What a difference a large mirror makes!

Here are two images of the same object, Herbig-Haro 46/47. HH 46/47 is a pair of jets launched by young stars.

They are taken at similar wavelengths of infrared light. The difference? #Spitzer's mirror was 85 cm (33 inches) in diameter, about the size of a hula-hoop. #JWST's mirror is 6.6 meters (21.7 feet) in diameter, the height of a two-story building.

Spitzer: spitzer.caltech.edu/image/ssc2
JWST: webbtelescope.org/contents/med
#astronomy #space

I haven't said anything about this because I wasn't sure how public the information was, but this article is on @arstechnica, so ...

This is, in my opinion, one of the MOST EXCITING #SPACE MISSIONS currently under consideration!

The folks working on this want to resurrect a #NASA Great Observatory! With a ride-along! And it's so audacious it just MIGHT WORK!

#Astronomy #Astrophysics #SpaceScience #Spitzer

arstechnica.com/science/2023/0

Ars TechnicaA private company has an audacious plan to rescue NASA’s last “Great Observatory”"I think it would be pretty ambitious... but really great if we could pull it off."
Continued thread

3️⃣ First of all, why is WASP-39 b so particular to be the target of FIVE #Nature papers ?

Well, this #planet is a transiting hot jupiter, as we know hundreds of them. It's a giant #planet orbiting with an orbital period of 4 days.

Its atmosphere was already well known as observed by the #Hubble #space #telescope (with 2 different instruments), the #Spitzer space telescope, and the 8.2m #ESO #VLT telescope in #Chile.

Below is the transmission spectrum of WASP-39b that we knew before #JWST.