Ansgar Schmidt :verified: · @Ansi
509 followers · 1598 posts · Server mastodon.cloud
Gioyosemite :mac: · @gioyosemite
26 followers · 1071 posts · Server mastodon.uno
Daniel Fischer · @cosmos4u
1148 followers · 1378 posts · Server scicomm.xyz

The instrument has returned to science operations - it was recovered on January 27, and following a successful test observation, the instrument resumed normal science observations on January 30: stsci.edu/contents/news/jwst/2

#NIRISS #jwst

Last updated 2 years ago

Gioyosemite :mac: · @gioyosemite
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Dr. Alexandre Santerne 🌍 · @AlexSanterne
1465 followers · 840 posts · Server astrodon.social

1️⃣ 2️⃣ The series of papers also reports the same transmission spectrum with 2 other instruments on board : in the paper led by @afeinstein20 et al. and in the paper led by @eahrer et al.
The spectra revealed again a lot of features with a higher resolution than / PRISM.

What is (really) super impressive is the fact the 3 instruments / 4 modes give nearly the same signal, with basically no systematic at all.

#nature #jwst #NIRISS #NIRCam #nirspec #astronomy #exoplanet

Last updated 2 years ago

Dr. Alexandre Santerne 🌍 · @AlexSanterne
1455 followers · 832 posts · Server astrodon.social

4️⃣ We knew that its was revealing water (H2O), carbon dioxyde (CO2) as well as sodium (Na) and potassium (K). It was therefore a very good target to the instrumental capabilities of in the near infrared ().

The objective of the team was therefore to observe that unique object with all instrumental modes of in the , to learn about the instrument and understand its limitations (if any). They used (in 2 different modes), , and .

#atmosphere #Test #jwst #nir #nirspec #NIRCam #NIRISS

Last updated 2 years ago