Discover and read the best of Twitter Threads about #NIRSpec

Most recents (6)

📢 #Webb reveals never-before-seen details of galaxy group “Stephan’s Quintet”, giving astronomers a ringside seat to galactic mergers and interactions. Read more here: esawebb.org/news/weic2208/ or below 👇
Stephan’s Quintet is a visual grouping of 5 galaxies with only 4 of the galaxies truly close together & caught up in a cosmic dance — a fantastic “laboratory” for scientists to see in detail how interacting galaxies trigger star formation & how gas is being disturbed 👇
Tight groups like this may have been more common in the early universe when their infalling material may have fuelled very energetic black holes. Even today, the topmost galaxy harbours an active galactic nucleus, a supermassive black hole 24 million times the mass of the Sun 👇
Read 7 tweets
📢 #Webb delivers deepest image of the Universe yet, looking far back in time when the Universe was less than a billion years old. The image is about the size of a grain of sand held at arm’s length, yet it reveals thousands of galaxies. Read more esawebb.org/news/weic2209/ or 👇
This is Webb’s First Deep Field, the deepest, sharpest infrared image of the distant Universe so far. It shows galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago, with many more galaxies in front of and behind the cluster 👇
The combined mass of this galaxy cluster acts as a gravitational lens 🔎 magnifying more distant galaxies, including some seen when the Universe was less than a billion years old 👇
Read 8 tweets
Le télescope spatial @ESA_Webb est arrivé à bon port aujourd'hui, et s'est mis en orbite autour du point L2. Beaucoup pensent qu'il est déjà opérationnel pour dévoiler les mystères de l'univers #unfoldtheuniverse mais non ... pas encore. Il ne commencera que dans 5 mois ⏳(1/8) Image
Pendant les 3 prochains mois @ESA_Webb va s'atteler à une tâche délicate et hautement importante : l'alignement de ses 18 miroirs segmentés afin qu'ils ne forment plus qu'un seul et grand miroir. Cool @NASAWebb a même prévu un GIF pour expliquer ça (2/8)
Pendant ce temps là, l'instrument #MIRI, développé en partie @CEAIrfu @IASorsay @LesiaAstro @LAM_Marseille @CNES, continue de refroidir jusqu'à atteindre une température de 7 Kelvin (-266ºC 🥶). Cet instrument sera le seul sur #JWST à observer dans l'infrarouge thermique (3/8) Image
Read 8 tweets
1/ #NIRSpec has three modes of operation: multi-object spectroscopy mode, fixed slits spectroscopy mode and integral field spectroscopy mode:
2/ 🔴 multi-object spectroscopy mode — #NIRSpec will be the 1st multi-object spectrograph in space, able to record the spectra of up to 200 objects at the same time. A capability enabled by microshutters.
3/ 🔴 fixed slits spectroscopy mode — #NIRSpec will also be able to carry out single-object, high-contrast spectroscopy using a set of five fixed slits. It will provide high contrast spectra of sources and a key to the study of exoplanets.
Read 4 tweets
Tutto pronto per seguire il lancio del telescopio spaziale #Webb alle 13:20 ora italiana #Jwst

Ma... perché si tratta di un momento storico per l'astronomia? Scopriamolo in questo ⬇️🧵 con le infografiche a cura di @esa @ESA_Italia

Media kit ➡️esamultimedia.esa.int/docs/science/W…

1/10
Gli obiettivi scientifici di #Jwst:
✨ le prime #galassie nella storia dell'universo
🌟 la formazione di #stelle e #pianeti
💫 le atmosfere degli #esopianeti
🪐 i pianeti del Sistema solare

#Webb #WebbFliesAriane #UnfoldTheUniverse

2/10
🚀 Il lancio di #Jwst – atteso tra poche ore – è solo l'inizio...

Ecco i momenti principali, dalla separazione delle varie componenti fino all'acquisizione del primo segnale 📡⬇️

3/10
Read 11 tweets
Je me suis amusé à faire la version francophone du calendrier de l'avent #JWST
Déroulez le fil, je suis curieux de savoir si vous apprenez quelque chose 🧵👇
👆
🎄4 Déc🎄
@AstronautiCAST
a eu une brillante idée, ce #thread s'appelle maintenant #JingleWebb 🔔😆

Chaque jour on gratte un hexagone pour découvrir ce qui se cache derrière !

On commence avec un détail sur un miroir de @NASAWebb
📸:Drew Noel
👇
👆
🎄5 Déc🎄

La beauté de ces hexagones dorés 😍

📸NASA/MSFC/David Higginbotham/Emmett Given
#JingleWebb🔔
👇
Read 21 tweets

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