Tag Archive for 'IR'

This Webb image shows member galaxies of the galaxy cluster A2744-z7p9OD. Image credit: NASA / ESA / CSA / T. Morishita, IPAC / A. Pagan, STScI.

Webb Spots Galaxy Protocluster in Early Universe

Apr 25, 2023 by News Staff

The seven galaxies highlighted in this new image from the NASA/ESA/CSA James Webb Space Telescope have been confirmed to be at a distance that astronomers...

The left panel shows a three-color composite mosaic of NGC 346 combining Webb’s F277W (blue), F335M (green) and F444W (red) filters. The region is rich in structures of knots, arcs and filaments. Areas of bright pink and/or red emission are associated with clumpy star formation. The spatially resolved PAH emission excited by ultraviolet photons in green is brightest in regions corresponding to the edges of dense material, characteristic of a photodissociation region. Massive stars, stars belonging to the BS90 cluster (circled in green) and the Small Magellanic Cloud field population are also visible. The right panel shows a mosaic image from the F335M filter showing four different populations of stars: pre-main-sequence stars (blue circles), young stellar objects with Paα (orange diamonds), young stellar objects without Paα (red squares) and stars matched with the HST-PMS catalogue (purple stars). Image credit: Jones et al., doi: 10.1038/s41550-023-01945-7.

Webb Detects Planetary Ingredients in NGC 346

Apr 25, 2023 by Natali Anderson

Located in the Small Magellanic Cloud at a distance of roughly 200,000 light-years, NGC 346 is a prominent young cluster — roughly 3 million years...

$This image, captured by Webb’s Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument (MIRI), shows Arp 220, a duo of colliding galaxies with merging cores; the brilliant light from the star-formation surrounding these cores creates diffraction spikes. Image credit: NASA / ESA / CSA / K. Pontoppidan, STScI / A. Pagan, STScI.$

Webb Sees Ultraluminous Galaxy Collision: Arp 220

Apr 18, 2023 by News Staff

Arp 220 is the result of a collision between two spiral galaxies; the enormous object glows brightest in infrared light, making it an ideal target for...

Color-composite image of the galaxy cluster RX J2129.6+0005; green circles indicate three lensed images of the dwarf starburst galaxy RX J2129-z95. Image credit: Williams et al., doi: 10.1126/science.adf5307.

Webb Finds Tiny Star-Forming Galaxy in Early Universe

Apr 13, 2023 by Enrico de Lazaro

The newly-discovered galaxy, named RX J2129-z95, appears as three images due to the gravitational lensing of the foreground galaxy cluster RX J2129.6+0005....

This new image from Webb’s Mid-Infrared Instrument (MIRI) shows Cassiopeia A, a supernova remnant located about 11,000 light-years from Earth in the constellation Cassiopeia. Image credit: NASA / ESA / CSA / D.D. Milisavljevic, Purdue University / T. Temim, Princeton University / I. De Looze, Ghent University / J. DePasquale, STScI.

Webb Shows Supernova Remnant Cassiopeia A in New Light

Apr 10, 2023 by News Staff

A new mid-infrared image from the Mid-Infrared Instrument (MIRI) onboard the NASA/ESA/CSA James Webb Space Telescope shows the supernova remnant Cassiopeia...

This Webb image shows Uranus and six of its 27 known moons (most of which are too small and faint to be seen in this short exposure). Image credit: NASA / ESA / CSA / STScI / J. DePasquale, STScI.

Webb Captures Stunning Images of Uranus and Its Moons

Apr 10, 2023 by News Staff

New images from the NASA/ESA/CSA James Webb Space Telescope show the ice giant Uranus, its faint rings and several moons. This image of Uranus, captured...

The TRAPPIST-1 system is remarkable for its seven planets that are similar in size, mass, density, and stellar heating to the rocky planets Venus, Earth, and Mars in our own Solar System. This illustration shows what the rocky planet TRAPPIST-1b could look like based on the new study. Image credit: NASA / ESA / CSA / J. Olmsted, STScI.

Webb Measures Temperature of TRAPPIST-1b

Mar 28, 2023 by News Staff

The dayside of TRAPPIST-1b, the innermost planet in the seven-planet system TRAPPIST-1, has a temperature of about 227 degrees Celsius (441 degrees Fahrenheit),...

$This image shows WR 124, a star located approximately 15,000 light-years away in the constellation of Sagitta. The star displays the characteristic diffraction spikes of Webb’s Near-infrared Camera (NIRCam), caused by the physical structure of the telescope itself. NIRCam effectively balances the brightness of the star with the fainter gas and dust surrounding it, while Webb’s Mid-Infrared Instrument (MIRI) reveals the nebula’s structure. Image credit: NASA / ESA / CSA / STScI / Webb ERO Production Team.$

Webb Captures Extremely Luminous and Hot Wolf-Rayet Star

Mar 15, 2023 by News Staff

Wolf-Rayet stars are in the process of casting off their outer layers, resulting in their characteristic halos of gas and dust. The new Webb images of...

The first epoch of COSMOS-Web NIRCam observations obtained on January 5 and 6, 2023, including the F115W, F150W, F277W, and F444W filters as a color composite. Image credit: COSMOS-Web / Casey et al. / RIT / UT Austin / IAP / CANDIDE.

New Webb Images Offer Treasure Trove of Early Galaxies

Mar 13, 2023 by News Staff

Astronomers from the COSMOS-Web program released mosaic images taken in early January 2023 by the Near-Infrared Camera (NIRCam) and Mid-Infrared Instrument...

This Webb image shows the massive galaxy cluster RX J2129.6+0005; due to gravitational lensing, this observation contains three different images of a distant galaxy that hosted the Type Ia supernova event AT 2022riv. Image credit: NASA / ESA / CSA / Webb / P. Kelly.

Webb Sees Three Images of Same Supernova-Hosting Galaxy

Mar 10, 2023 by Enrico de Lazaro

Light from the distant supernova-hosting galaxy was gravitationally lensed by the foreground galaxy cluster RX J2129.6+0005 (RX J2129 for short). This...

An artist’s rendering of two brown dwarfs. Image credit: Roberto Molar Candanosa & Sergio Dieterich, Carnegie Institution for Science.

Astronomers Discover Exceptionally Short Period Ultracool Dwarf Binary System

Mar 3, 2023 by News Staff

The members of the LP 413-53AB system are so close that it takes just 17 hours to revolve around each other. An artist’s rendering of two brown dwarfs....

This false-color image shows the dwarf planet Ceres. Image credit: NASA / JPL-Caltech / UCLA / MPS / DLR / IDA.

New Study Sheds Light on Origin and Evolution of Ceres-Like Asteroids

Feb 21, 2023 by News Staff

Astronomers using NASA’s Infrared Telescope Facility (IRTF) telescope at Mauna Kea Observatory have captured and analyzed visible and near-infrared reflectance...

This Webb image shows NGC 7496, a barred spiral galaxy some 24 million light-years away in the constellation of Grus. Image credit: NASA / ESA / CSA / Webb / Judy Schmidt.

Webb Focuses on Polycyclic Aromatic Hydrocarbons in Nearby Galaxies

Feb 16, 2023 by News Staff

Webb observations of polycyclic aromatic hydrocarbon emission provide some of the deepest and highest resolution views of the cold interstellar medium...

This Webb image shows Abell 2744, a huge galaxy cluster some 4 billion light-years away in the constellation of Sculptor. Image credit: NASA / ESA / CSA / I. Labbe, Swinburne University of Technology / R. Bezanson, University of Pittsburgh / A. Pagan, STScI.

Webb Reveals Never-Before-Seen Details of Abell 2744

Feb 16, 2023 by News Staff

Webb astronomers estimate 50,000 near-infrared sources are represented in the new image of the huge galaxy megacluster Abell 2744. This Webb image shows...

An artist’s impression of an irregularly-shaped asteroid. Image credit: N. Bartmann, ESA & Webb / ESO / M. Kornmesser / S. Brunier / N. Risinger, skysurvey.org.

Webb Discovers New Asteroid in Solar System’s Main Belt

Feb 7, 2023 by News Staff

The newly-discovered asteroid is less than 230 m (755 feet) across, and orbits within the main asteroid belt, which is located between Mars and Jupiter. An...

This Webb image features the central region of the Chameleon I dark molecular cloud, which resides 630 light-years away in the constellation of Chamaeleon; the cold, wispy cloud material (blue, center) is illuminated in the infrared by the glow of the young, outflowing protostar Ced 110 IRS 4 (orange, upper left); the light from numerous background stars, seen as orange dots behind the cloud, can be used to detect ices in the cloud, which absorb the starlight passing through them. Image credit: NASA / ESA / CSA / M. Zamani, ESA & Webb / F. Sun, Steward Observatory / Z. Smith, Open University / Ice Age ERS Team.

Webb Reveals Rich Composition of Interstellar Molecular Cloud Ices

Jan 23, 2023 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected water ice as well as frozen forms of carbonyl sulfide, ammonia, methane, and...

This image, taken by the Near-Infrared Camera (NIRCam) onboard the NASA/ESA/CSA James Webb Space Telescope, shows the star cluster NGC 346. Webb reveals the presence of many more building blocks than previously expected, not only for stars, but also planets, in the form of clouds packed with dust and hydrogen. The plumes and arcs of gas in this image contains two types of hydrogen. The pink gas represents energized hydrogen, which is typically as hot as around 10,000 degrees Celsius (approximately 18,000 degrees Fahrenheit) or more, while the more orange gas represents dense, molecular hydrogen, which is much colder at around minus 200 degrees Celsius or less (approximately minus 300 degrees Fahrenheit), and associated dust. The colder gas provides an excellent environment for stars to form, and, as they do, they change the environment around them. The effect of this is seen in the various ridges throughout, which are created as the light of these young stars breaks down the dense clouds. The many pillars of glowing gas show the effects of this stellar erosion throughout the region. In this image blue was assigned to the wavelength of 2.0 microns (F200W), green was assigned to 2.77 microns (F277W), orange was assigned to 3.35 microns (F335M), and red was assigned to 4.44 microns (F444W). Image credit: NASA / ESA / CSA / O. Jones, UK ATC / G. De Marchi, ESTEC / M. Meixner, USRA / A. Pagan, STScI / N. Habel, USRA / L. Lenkic, USRA / L. Chu, NASA’s Ames Research Center.

Webb Probes Most Massive Star-Forming Region of Small Magellanic Cloud

Jan 13, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have revealed many new pockets of star formation in NCG 346, an open star cluster in the...

This Webb image shows the Pillars of Creation, a small star-forming region some 6,500 light-years away in the constellation of Serpens. Image credit: NASA / ESA / CSA / STScI / J. DePasquale, STScI / A. Pagan, STScI / A. M. Koekemoer, STScI.

Webb Team Releases Composite Image of Pillars of Creation

Dec 5, 2022 by Enrico de Lazaro

Astronomers have combined Webb’s near-infrared image with the mid-infrared image, setting the iconic Pillars of Creation ablaze with new details. This...

These images of Saturn’s moon Titan were captured by Webb’s NIRCam instrument on November 4, 2022. Left: image using F212N, a 2.12-micron filter sensitive to Titan’s lower atmosphere; the bright spots are prominent clouds in the northern hemisphere. Right: color composite image using a combination of NIRCam filters; several prominent surface features are labeled: Kraken Mare is thought to be a methane sea; Belet is composed of dark-colored sand dunes; Adiri is a bright albedo feature. Image credit: NASA / ESA / CSA / A. Pagan, STScI / Webb Titan GTO Team.

Webb Sees Clouds in Hazy Atmosphere of Titan

Dec 2, 2022 by News Staff

Titan, the largest moon of Saturn, is the only moon in the Solar System with a dense atmosphere, and it is also the only planetary body other than Earth...

This image of the Orion Nebula features plenty of dust but no stars. The color image is a composite of separate exposures acquired by NASA’s Spitzer Space Telescope, NASA’s Wide-Field Infrared Survey Explorer and ESA’s Herschel Space Telescope. Image credit: NASA / ESA / JPL-Caltech.

Astronomers Release Breathtaking New View of Orion Nebula

Nov 24, 2022 by Enrico de Lazaro

The famous Orion Nebula can be seen with the naked eye as a fuzzy patch surrounding the star Theta Orionis in the Hunter’s Sword, below Orion’s belt. This...

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