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The galactic center image won't be as fancy, unfortunately. Resolution of Webb is far-far-far too low to see anything related to the black hole, the best we cou
by nuccy 4y ago
The galactic center image won't be as fancy, unfortunately. Resolution of Webb is far-far-far too low to see anything related to the black hole, the best we could do is enhance the view of the stars near Sgr A* [1].
1. https://www.eso.org/public/videos/eso0226a/ https://www.eso.org/public/videos/eso0226a/
- nuccy 4y agoWebb resolution is about 0.1 arc-seconds (wavelength dependent) [1]. Event Horizon Telescope (EHT) resolution is about 25 micro arc-seconds (wavelength dependent) [2]. So roughly speaking, since you cannot really compare the two, since they observe on quite different wavelengths, EHT has ~4000 times better resolution than Webb. Note that we don't speak about sensitivity here. ALMA array of radio telescopes has a collecting area of 7000 m2, while it is just one of many "nodes" of the EHT. Webb total collecting area is about 25 m2. 1. https://www.jwst.nasa.gov/content/about/faqs/faq.html#sharp https://www.jwst.nasa.gov/content/about/faqs/faq.html#sharp 2. https://eventhorizontelescope.org/technology https://eventhorizontelescope.org/technology
- kloch 4y agoUnderstood, but it still would be very interesting to see the area with JWST's full range of instruments.