#multiwavelength

‘Triple Vision’ Image Of Jupiter Shows What’s Beneath Its Clouds

"Back in 2017, Hubble and Gemini North viewed Jupiter simultaneously. These multiwavelength views revealed the origin and properties of numerous phenomena. Dark infrared regions, including the Great Red Spot (and "Red Spot Jr."), possess thick clouds. However, tiny infrared “dots” indicate downdrafts, creating convection and enabling Jovian lightning storms. Visible cloud breaks in Jupiter's bands appear hot, allowing infrared emission through."

Almost every image of Jupiter, our largest planet, comes to us as the result of observations made in visible light. That's too bad, because by looking at Jupiter in multiple different wavelengths simultaneously, we can learn so much more than just from one, narrow band of viewing.

Multiwavelength Crab Nebula This lovely high-resolution image of the Crab Nebula was created by combining telescope data from radio waves, x-ray, visible light, and infrared. The combined wavelength data was provided from the Very Large Array (Radio), the Chandra X-ray Observatory (X-ray), the Hubble Telescope (Visible), and the Spitzer Space Telescope (Infrared). Full description of the image and the Crab Nebula itself here Full resolution picture here

Spectacular New Crab Nebula Images Close In On Its Final Secrets

"However, one significant problem remains with the nebula: the masses don't add up. By looking in all these different wavelengths, we can calculate/estimate the mass of the Crab Nebula, and arrive at a figure of about two-to-five solar masses. The neutron star at the core is likely no more than two solar masses, and yet it should be impossible to have a supernova unless your progenitor star is at least eight times the mass of the Sun.”

The Crab Nebula is one of the most interesting and compelling objects in the entire night sky. In the year 1054, a supernova went off in the constellation of Taurus, where it became brighter than anything other than the Sun and Moon in the sky. Some 700 years later, astronomers discovered the remnant of that supernova: the Crab Nebula. For nearly a millennium, it’s been expanding at 0.5% the speed of light, and the nebula now spans more than 11 light years across. With a neutron star at its core and a shell with incredibly intricate structures, it’s one of our greatest cosmic clues to where the Universe’s enriched, heavy elements came from.

An international team of astronomers has performed multiwavelength observations of a gamma-ray binary system known as HESS J0632+057. Results of the observational campaign, presented July 31 on the pre-print server arXiv, shed more light on the nature of this binary. Summary An international team studied the gamma-ray binary system HESS J0632+057 using multiwavelength observations. Their…