Tag Archive for 'Spectrum'

Jarmak et al. used Webb, shown in the bottom right corner of this illustration, to confirm the presence of hydrated minerals on the surface of Psyche. Image credit: Southwest Research Institute.

Study: Asteroid Psyche Originated beyond Solar System’s Snow Line and Later Migrated to Main Belt

Aug 13, 2024 by News Staff

Planetary scientists using spectral data from the NASA/ESA/CSA James Webb Space Telescope have confirmed the detection of hydroxyl molecules on the surface...

An artist’s impression of TIC 241249530b. Image credit: NOIRLab / NSF / AURA / J. da Silva, Spaceengine.

Astronomers Find Young Hot Jupiter on Super-Eccentric, Retrograde Orbit

Jul 17, 2024 by News Staff

Astronomers have discovered an exoplanet five times the mass of Jupiter that makes a very peculiar orbit around its star. An artist’s impression of TIC...

This illustration shows what WASP-39b could look like, based on the current understanding of the planet. Image credit: NASA / ESA / CSA / Webb / J. Olmsted, STScI.

Webb Confirms Temperature Difference between Eternal Morning and Evening on WASP-39b

Jul 16, 2024 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have obtained and analyzed morning and evening transmission spectra of WASP-39b, a hot-Saturn...

LHS 1140b may be a world completely covered in ice (left) similar to Jupiter’s moon Europa or be an ice world with a liquid ocean and a cloudy atmosphere (center). Image credit: B. Gougeon / Université de Montréal.

Habitable Zone Exoplanet LHS 1140b is Probably Snowball or Water World

Jul 9, 2024 by News Staff

LHS 1140b is the second-closest temperate transiting exoplanet to Earth with a temperature low enough to support surface liquid water. LHS 1140b may be...

An artist’s impression of the hot-Jupiter exoplanet HD 189733b. Image credit: Roberto Molar Candanosa / Johns Hopkins University.

Webb Detects Hydrogen Sulfide in Atmosphere of Hot Jupiter

Jul 8, 2024 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected trace amounts of hydrogen sulfide in the atmosphere of the Jupiter-sized exoplanet...

A simulation of a hypothetical J1249+36-white dwarf binary pair ends with the white dwarf exploding into a supernova. Image credit: Adam Makarenko / W.M. Keck Observatory.

Citizen Scientists Discover Hypervelocity L-Subdwarf Star in Solar Neighborhood

Jun 12, 2024 by News Staff

With an estimated distance of 140 parsecs (457 light-years), the L-subdwarf star CWISE J124909+362116.0 (J1249+36 for short) has a total speed of at least...

Chen et al. show that Beta Pictoris has a dynamic circumstellar environment and that periods of enhanced collisions can create large dust clouds that sweep through the planetary system, increasing the dust accretion onto the giant planets Beta Pictoris b and c. Image credit: Roberto Molar Candanosa / Johns Hopkins University / Lynette Cook / NASA.

Webb Detects Giant Collision in Beta Pictoris System

Jun 12, 2024 by News Staff

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have spotted a collision of giant asteroids around Beta Pictoris, the second brightest star...

This is an artist’s impression of a young star surrounded by a disk of gas and dust. Image credit: NASA / JPL.

Webb Detects Abundant Hydrocarbons in Protoplanetary Disk around Very-Low-Mass Star

Jun 6, 2024 by News Staff

Very-low-mass stars host orbiting rocky exoplanets more frequently than other types of stars. The compositions of those planets are largely unknown but...

This infrared image from Webb’s NIRCam shows the record-breaking galaxy JADES-GS-z14-0. Image credit: NASA / ESA / CSA / STScI / B. Robertson, UC Santa Cruz / B. Johnson, CfA / S. Tacchella, Cambridge / P. Cargile, CfA.

Webb Discovers Most Distant Galaxy So Far

May 31, 2024 by News Staff

Astronomers using the NIRSpec (Near-Infrared Spectrograph) instrument onboard the NASA/ESA/CSA James Webb Space Telescope have obtained the spectrum of...

This artist’s concept shows what the exoplanet WASP-107b could look like based on recent data gathered by the NASA/ESA/CSA James Webb Space Telescope along with previous observations from the NASA/ESA Hubble Space Telescope and other observatories. Image credit: NASA / ESA / CSA / Ralf Crawford, STScI.

Why is Cotton-Candy Exoplanet WASP-107b So Puffy?

May 20, 2024 by News Staff

A surprisingly low amount of methane and a super-sized core hide within WASP-107b, a super-Neptune exoplanet approximately 212 light-years away in the...

This artist’s concept shows the possible locations of iron revealed in XRISM’s X-ray spectrum of NGC 4151. Image credit: Conceptual Image Lab, NASA’s Goddard Space Flight Center.

XRISM Detects Iron in Accretion Disk around NGC 4151’s Supermassive Black Hole

May 8, 2024 by Enrico de Lazaro

NGC 4151 is a spiral galaxy located some 62 million light-years away in the northern constellation of Canes Venatici. This artist’s concept shows the...

An artist’s impression of 55 Cancri e. Image credit: NASA / ESA / CSA / R. Crawford, STScI.

Webb Detects Secondary Atmosphere on 55 Cancri e

May 8, 2024 by News Staff

Gas bubbling up from a lava-covered surface on the super-Earth exoplanet 55 Cancri e may feed an atmosphere rich in carbon dioxide or carbon monoxide,...

Rendering of the likely view on a Hycean world. Image credit: Shang-Min Tsai / UCR.

Webb Probably Didn’t Detect Biosignature Gas on K2-18b

May 2, 2024 by News Staff

In 2023, astronomers reported a tentative detection of dimethyl sulfide — which is predominately produced by marine microbes on Earth and regarded...

This artist’s concept shows what WASP-43b could look like. Image credit: NASA / ESA / CSA / Ralf Crawford, STScI.

Webb Maps Weather on Hot Jupiter WASP-43b

Apr 30, 2024 by News Staff

WASP-43b is cloudy on the nightside and clear on the dayside, with equatorial winds howling around the planet at 8,050 km per hour (5,000 mph). This artist’s...

An artist’s impression of the center of the starburst galaxy NGC 253. Image credit: NRAO / AUI / NSF.

ALMA Detects Over One Hundred Molecular Species in Nearby Starburst Galaxy

Apr 2, 2024 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected over 100 molecular species in the center of the starburst galaxy...

This view of Titan is among the last images NASA’s Cassini spacecraft sent to Earth before it plunged into the giant planet’s atmosphere. Image credit: NASA / JPL-Caltech / Space Science Institute.

Tricarbon Molecule Detected in Atmosphere of Titan

Mar 18, 2024 by Natali Anderson

The tricarbon molecule (C3) is likely produced in the upper atmosphere of Titan by the reaction of abundant acetylene with atomic carbon. This view of...

This image, taken by Webb’s MIRI instrument, shows a region near the IRAS 23385+6053 protostar. Image credit: NASA / ESA / CSA / W.R.M. Rocha, LEI.

Webb Detects Complex Organic Molecules in Interstellar Ices toward Two Protostars

Mar 14, 2024 by News Staff

Astronomers using the Mid-Infrared Instrument (MIRI) on the NASA/ESA/CSA James Webb Space Telescope have detected a variety of molecules ranging from relatively...

This two-part graphic shows evidence of a gaseous clump of helium in the halo surrounding galaxy GN-z11. In the top portion, at the far right, a small box identifies GN-z11 in a field of galaxies. The middle box shows a zoomed-in image of the galaxy. The box at the far left displays a map of the helium gas in the halo of GN-z11, including a clump that does not appear in the infrared colors shown in the middle panel. In the lower half of the graphic, a spectrum shows the distinct ‘fingerprint’ of helium in the halo. The full spectrum shows no evidence of other elements and so suggests that the helium clump must be fairly pristine, made of hydrogen and helium gas left over from the big bang, without much contamination from heavier elements produced by stars. Theory and simulations in the vicinity of particularly massive galaxies from these epochs predict that there should be pockets of pristine gas surviving in the halo, and these may collapse and form Population III star clusters. Image credit: NASA / ESA / CSA / Ralf Crawford, STScI.

Webb Detects Pristine Helium Clump in GN-z11’s Halo

Mar 5, 2024 by Enrico de Lazaro

GN-z11 is an exceptionally luminous galaxy that existed when our Universe was only 420 million years old, making it one of the earliest and most distant...

Composite-color image of A2744-QSO1. Image credit: Furtak et al., doi: 10.1038/s41586-024-07184-8.

Webb Finds Surprisingly Massive Black Hole in Early Universe

Feb 27, 2024 by News Staff

Using the NASA/ESA/CSA James Webb Space Telescope, astronomers have observed an extremely red, quasar-like object — named A2744-QSO1 — behind...

This Webb image shows ZF-UDS-7329, a rare massive galaxy that formed very early in the Universe. Image credit: Glazebrook et al., doi: 10.1038/s41586-024-07191-9.

Webb Discovers Massive Quiescent Galaxy with Old Stellar Population in Early Universe

Feb 16, 2024 by News Staff

The formation of galaxies by gradual hierarchical co-assembly of baryons and cold dark matter halos is a fundamental paradigm underpinning modern astrophysics...

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