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Where does #JWST reside on the spectrum of telescopes? The EM spectrum ranges for various space-based telescopes and a few ground telescopes are shown below. JWST observes in the 0.6–28.3 μm wavelength range (orange to mid-infrared). Hubble ST observes in the 0.1–1.0 μm range.
The Herschel Space Observatory, active from 2009 to 2013, observed in the far IR 55-672 µm range, from its perch at L2 (same as #JWST!). Its 3.5 m mirror was made of sintered silicon carbide. Detectors were kept at temps below 2 deg K, using 2,300 litres of liquid helium at 1.4 K
The Spitzer Space Telescope, 2003-2020, observed in the infrared 3.6-160 µm range from an Earth-trailing orbit. Its 0.85 m Beryllium mirror and detectors were kept at near zero temps using liquid helium. The LHE depleted in 2009, limiting Spitzer to shorter wavelengths.
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Cuando descubrimos una galaxia lejana muy brillante, ¿es una sola galaxia o pueden ser muchas galaxias juntas que no distinguimos entre sí? Te contamos qué vimos con @gtmlmt_oficial en este artículo técnico👉 arxiv.org/pdf/2106.03286… y la explicación a todo público en 🧵👇1/7 Gran Telescopio Milimétrico...
Con el observatorio espacial #Herschel de @esa hicimos imágenes de cientos de grados cuadrados del cielo donde encontramos cientos de miles de galaxias polvorientas, brillantes en ondas de 500 micras, unas 1000 veces menos energéticas que las que vemos con nuestros ojos. 2/7 Porción del censo Herschel ...
Tomamos imagen a 1.1mm con los 30m internos de @lmtgtm_oficial y una nitidez 4 veces mayor que la de Herschel, para encontrar cuántas de las galaxias Herschel rojas (lejanas) son en realidad un grupo de galaxias y no una sola. 3/7 Crédito: SEOPressor
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