toad.social is one of the many independent Mastodon servers you can use to participate in the fediverse.
Mastodon server operated by David Troy, a tech pioneer and investigative journalist addressing threats to democracy. Thoughtful participation and discussion welcome.

Administered by:

Server stats:

279
active users

#Spitzer

0 posts0 participants0 posts today
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.

Here's something a lil #green for #StPatricksDay

RCW 120 is located in the #constellation Scorpio & is likely the product of an O-star.

If you're interested in the #mythology and #astronomy of this constellation, we covered it season 1 of our podcast here: starrytimepodcast.podbean.com/

#astrophotography #Space #Science #Spitzer #NASA #Scorpio #podcast

📷 :nasa.gov/image-article/green-r

Continued thread

We continue with Jonathan Fortney on GJ436 b - the original archetype #warm #Neptune

It has an intriguingly “large” eccentricity (I disagree that 0.14 is large sorry 🤓).

Thermal emission from the planet showed to be different for the #Spitzer points, at the time explained through atmospheric chemistry: non-equilibrium + mixing.

Reanalysis + follow-up showed a lower point at 3.6 micron, so less bright, but still brighter. Suggestion: tidal heating driving up the interior? #ExSSV

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