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    NIRCam tagged posts

    Investigating the Origins of the Crab Nebula

    June 19, 2024, Categories  Astronomy/Space

    This image by NASA’s James Webb Space Telescope’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) shows different structural details of the Crab Nebula. The supernova remnant is comprised of several different components, including doubly ionized sulfur (represented in green), warm dust (magenta), and synchrotron emission (blue). Yellow-white mottled filaments within the Crab’s interior represent areas where dust and doubly ionized sulfur coincide. The observations were taken as part of General Observer program 1714.
    : NASA, ESA, CSA, STScI, T. Temim (Princeton University)

    A team of scientists used NASA’s James Webb Space Telescope to parse the composition of the Crab Nebula, a supernova remnant located 6,500 light-years away in the constellation Taurus...

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    Webb Cracks Case of Inflated Exoplanet

    May 21, 2024, Categories  Astronomy/Space

    Graphic titled “Hot Gas-Giant Exoplanet WASP-107 b Transmission Spectrum: Hubble WFC3 Grism Spectroscopy; Webb NIRCam Grism Spectroscopy; Webb MIRI Low-Resolution Spectroscopy” has 3 sets of data points with error bars and a best-fit model on a graph of Amount of Light Blocked on the y-axis versus Wavelength of Light in microns on the x-axis. Y-axis ranges from less light blocked at bottom to more light blocked at top. X-axis ranges from 0.8 to 12 microns. Data are identified in a legend. Hubble WFC3: 30 green data points ranging from 0.9 to 1.6 microns; Webb NIRCam: 177 orange data points ranging from 2.5 to 5 microns; Webb MIRI: 46 pink data points ranging from 5 to 12 microns. Best-fit model is a gray line with numerous peaks and valleys. The model and data are closely aligned. Ten features on the graph are labeled: Water H2O; Water H2O and Carbon Dioxide CO2; Ammonia NH3; Methane CH4; Sulfur Dioxide SO2; Carbon Dioxide CO2; Carbon Monoxide CO; Water H2O; Sulfur Dioxide SO2; and Ammonia NH3.
    Warm Gas-Giant Exoplanet WASP-107 b Transmission Spectrum (Hubble WFC3, Webb NIRCam, Webb MIRI)

    Why is the warm gas-giant exoplanet WASP-107 b so puffy? Two independent teams of researchers have an answer.

    Data collected using NASA’s James Webb Space Telescope, combined with prior observations from NASA’s Hubble Space Telescope, show surprisingly little methane (CH4) in the planet’s atmosphere, indicating that the interior of WASP-107 b must be significantly hotter and the core much more massive than previously estimated.

    The unexpectedly high temperature is thought to be a result of tidal heating caused by the planet’s slightly non-circular orbit, and can explain how WASP-107 b can be so inflated without resorting to extreme theories of how it formed.

    The results, which were ...

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    ‘Beyond What’s Possible’: New JWST Observations Unearth Mysterious Ancient Galaxy

    February 15, 2024, Categories  Uncategorized

    ‘Beyond what’s possible’: New JWST observations unearth mysterious ancient galaxies
    JWST-7329: a rare massive galaxy that formed very early in the Universe. This JWST NIRCAM image shows a red disk galaxy but with images alone it is hard to distinguish from other objects. Spectral analysis of its light with JWST revealed its anomalous nature – it formed around 13 billions years ago even though it contains ~4x more mass in stars than our Milky Way does today. Credit: James Webb Space Telescope

    Our understanding of how galaxies form and the nature of dark matter could be completely upended after new observations of a stellar population bigger than the Milky Way from more than 11 billion years ago that should not exist.

    A paper published today in Nature details findings using new data from the James Webb Space Telescope (JWST)...

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    Webb Rings in Holidays with Ringed Planet Uranus

    December 19, 2023, Categories  Astronomy/Space

    The planet Uranus on a black background. The planet appears blue with a large, white patch taking up the right half. The patch is whitest at the center, then fades into blue at it expands from right to left. A thin outline of Uranus is also white. Around the planet is a system of nested rings. The outermost ring is the brightest while the innermost ring is the faintest. Unlike Saturn’s horizontal rings, the rings of Uranus are vertical and so they appear to surround the planet in an oval shape. There are 9 blueish white dots scattered around the rings.
    This image of Uranus from NIRCam (Near-Infrared Camera) on NASA’s James Webb Space Telescope exquisitely captures Uranus’s seasonal north polar cap and dim inner and outer rings. This Webb image also shows 9 of the planet’s 27 moons – clockwise starting at 2 o’clock, they are: Rosalind, Puck, Belinda, Desdemona, Cressida, Bianca, Portia, Juliet, and Perdita.
    NASA, ESA, CSA, STScI

    The James Webb Space Telescope recently trained its sights on unusual and enigmatic Uranus, an ice giant that spins on its side. Webb captured this dynamic world with rings, moons, storms, and other atmospheric features—including a seasonal polar cap. The image expands upon a two-color version released earlier this year, adding additional wavelength coverage for a more detailed look.

    With its exq...

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