Tag Archive for 'Protoplanet'

Berné et al. observed the far-ultraviolet-irradiated protoplanetary disk d203-506 in the Orion Nebula. Image credit: Berné et al., doi: 10.1126/science.adh2861.

UV Radiation from Massive Stars Shapes Nearby Planetary Systems

Feb 29, 2024 by News Staff

For decades, astronomers have known that the powerful light emitted by massive stars can disrupt the swirling planetary disk of dust and gas around young...

This ALMA image shows the water vapor (shades of blue) in the protoplanetary disk around HL Tauri; near the center of the disk, where the young star lives, the environment is hotter and the gas brighter; the red-hued rings are previous ALMA observations showing the distribution of dust around the star. Image credit: ALMA / ESO / NAOJ / NRAO / Facchini et al.

ALMA Detects Water Vapor in Protoplanetary Disk around Young Star

Feb 29, 2024 by Enrico de Lazaro

The water molecule is a key ingredient in the formation of planetary systems. Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA)...

Rings of dust surrounding HL Tauri, with line patterns showing the orientation of polarized light. Image credit: NSF / AUI / NRAO / B. Saxton / Stephens et al.

ALMA Detects Dust Grains in Gaps of HL Tauri’s Protoplanetary Disk

Nov 21, 2023 by Enrico de Lazaro

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have captured a high-resolution image of HL Tauri, a young star in the constellation...

This image from ESA’s Euclid spacecraft shows the Horsehead Nebula, also known as Barnard 33, a giant star-forming region located 1,375 light-years away in the constellation of Orion. Image credit: ESA / Euclid / Euclid Consortium / NASA / J.-C. Cuillandre, CEA Paris-Saclay / G. Anselmi / CC BY-SA 3.0 IGO.

Euclid Captures Spectacular Image of Horsehead Nebula

Nov 9, 2023 by Enrico de Lazaro

The Euclid team has released a spectacularly panoramic and detailed image of the Horsehead nebula. This image from ESA’s Euclid spacecraft shows the...

Yuan et al. suggest that LLVPs are remnants of the ancient protoplanet Theia that violently collided with Earth billions of years ago in the same giant impact that created our Moon. Image credit: Hernán Cañellas.

Two Fragments of Protoplanet Theia Lie Deep within Earth, Geoscientists Say

Nov 1, 2023 by Enrico de Lazaro

A giant collision between the ancient protoplanet Theia and the proto-Earth about 4.5 billion years ago may have formed Earth’s Moon as well as two continent-sized...

A visualization of the huge, glowing planetary body produced by the ASASSN-21qj planetary collision. Image credit: Mark Garlick.

Astronomers Detect Afterglow of Collision between Two Ice-Giant Exoplanets

Oct 11, 2023 by Natali Anderson

The collision between two exoplanets of several to tens of Earth masses occurred at a distance of 2-16 AU (astronomical units) from the young solar-like...

A fragment of the Erg Chech 002 meteorite. Image credit: Steve Jurvetson / CC BY 2.0.

4.6-Billion-Year-Old Meteorite Provides New Insights into Early Solar Nebula

Aug 29, 2023 by News Staff

Scientists have determined a precise lead isotopic age of the andesitic achondrite meteorite Erg Chech 002. Their result, combined with published aluminum-26-magnesium-26...

This artist’s concept portrays PDS 70 and its inner protoplanetary disk. Image credit: NASA / ESA / CSA / J. Olmsted, STScI.

Webb Detects Water in Terrestrial Planet-Forming Zone around PDS 70

Jul 25, 2023 by Enrico de Lazaro

Terrestrial and sub-Neptune exoplanets are expected to form in the inner regions of protoplanetary disks around their parent stars. Water plays a key role...

This ALMA image shows the young planetary system PDS 70. The system features a star at its center, around which the planet PDS 70b (highlighted with a solid yellow circle) is orbiting. On the same orbit as PDS 70b, indicated by a solid yellow ellipse, Balsalobre-Ruza et al. detected a cloud of debris (circled by a yellow dotted line) that could be the building blocks of a new planet or the remnants of one already formed. The ring-like structure that dominates the image is a circumstellar disk of material, out of which planets are forming. There is in fact another planet in this system: PDS 70c, seen at 3 o’clock right next to the inner rim of the disk. Image credit: ALMA / ESO / NAOJ / NRAO / Balsalobre-Ruza et al.

ALMA Detects Possible Trojan Protoplanet around PDS 70

Jul 20, 2023 by Enrico de Lazaro

PDS 70, a young K7-type star some 370 light-years away from Earth in the constellation of Centaurus, is a unique target for planetary formation studies...

This artist’s conception shows the Jupiter-like protoplanet HD 169142b interacting with and heating nearby molecular gas, driving outflows seen in several emission lines, including those from shock-tracing molecules like SO and SiS, and the commonly seen 12CO and 13CO. Image credit: ALMA / ESO / NAOJ / NRAO / M. Weiss / AUI / NSF.

Astronomers Find Chemical Evidence for Planet Formation around HD 169142

Jun 28, 2023 by News Staff

Planets form in dusty, gas-rich circumstellar disks around young stars, while at the same time, the planet formation process alters the physical and chemical...

This image taken by Webb’s Near-Infrared Camera shows a part of the Orion Nebula known as the Orion Bar. It is a region where energetic ultraviolet light from the Trapezium Cluster -- located off the upper-left corner -- interacts with dense molecular clouds. The energy of the stellar radiation is slowly eroding the Orion Bar, and this has a profound effect on the molecules and chemistry in the protoplanetary disks that have formed around newborn stars here. Image credit: NASA / ESA / CSA / Webb / M. Zamani / PDRs4All ERS Team.

Webb Detects Crucial Carbon Molecule in Protoplanetary Disk

Jun 26, 2023 by News Staff

The vital role of a carbon molecule called methyl cation (CH3+) in interstellar carbon chemistry was predicted in the 1970s, but the unique capabilities...

This image, taken with Webb’s Mid-Infrared Instrument (MIRI), shows the dusty debris disk surrounding Fomalhaut A. Image credit: NASA / ESA / CSA / A. Gáspár, University of Arizona / A. Pagan, STScI.

Webb Images Three Debris Belts around Fomalhaut A

May 9, 2023 by Enrico de Lazaro

New high-resolution images of the Fomalhaut A system from the NASA/ESA/CSA James Webb Space Telescope show three debris belts extending out to 23 billion...

An artist’s illustration of a protoplanet around LkCa 15; the protoplanet resides within dense rings of dust and gas that surround the star; material accumulates in a clump and arc-shape, about 60 degrees away from the protoplanet. Image credit: M. Weiss / Harvard & Smithsonian’s Center for Astrophysics.

ALMA Finds Evidence of Neptune-Mass Protoplanet around LkCa 15

Sep 15, 2022 by News Staff

LkCa 15, also known as IRAS 04363+2215, EPIC 247520207 or TIC 118681038, is a K5-type star with a mass of 1.2 solar masses. An artist’s illustration...

Artist’s impression of an infant star still surrounded by a protoplanetary disk in which planets are forming. Image credit: L. Calçada / ESO.

ALMA Spots Circumplanetary Disk around Young Star AS 209

Aug 9, 2022 by News Staff

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have detected the emission from 13CO — measure of the molecular gas distribution...

AB Aurigae b. Image credit: NASA / ESA / Thayne Currie, Subaru Telescope & Eureka Scientific Inc. / Alyssa Pagan, STScI.

Astronomers Directly Image Giant Protoplanet around AB Aurigae

Apr 5, 2022 by News Staff

Using the Subaru Telescope and the NASA/ESA Hubble Space Telescope, astronomers have found evidence for a Jupiter-like protoplanet around the young star...

Hubble’s photo of Jupiter displays the ever-changing landscape of its turbulent atmosphere. Image credit: NASA / ESA / Hubble / Amy Simon, NASA’s Goddard Space Flight Center / Michael H. Wong, University of California, Berkeley / Joseph DePasquale, STScI.

Proto-Jupiter Underwent Significant Orbital Migration, Research Suggests

Apr 4, 2022 by Enrico de Lazaro

The atmosphere of Jupiter is enriched with heavy elements by a factor of about 3 compared to a protosolar composition. The origin of this enrichment and...

An artist’s impression of a transition disk around an evolved binary star. Image credit: N. Stecki.

Astronomers Spot Second-Generation Planet-Forming Disks around Ancient Binary Stars

Feb 1, 2022 by Enrico de Lazaro

Astronomers have assembled a catalog of all known Galactic binaries featuring massive disks of gas and dust that are similar to the protoplanetary disks...

Super-Jupiter Found Circling Very Young, Very Low Mass Star

Oct 25, 2021 by Enrico de Lazaro

The discovery of a super-Jupiter exoplanet around the M-type dwarf star 2MASS J04372171+2651014 challenges models of planet formation by either core accretion...

This is an artist impression of the protoplanetary disk around HD 107146. Image credit: A. Angelich / NRAO / AUI / NSF.

Mysterious Gap Existed within Solar System’s Protoplanetary Disk, New Research Suggests

Oct 20, 2021 by News Staff

Around 4.567 billion years ago, our Solar System harbored a gap within the protoplanetary disk, near the location where the main asteroid belt resides...

This ALMA image shows the shadow of the innermost ring on the rest of the circumtriple protoplanetary disk around GW Orionis. Image credit: ALMA / ESO / NAOJ / NRAO / University of Exeter / Kraus et al.

Massive Planets May Be Orbiting Young Triple Star GW Orionis

Oct 4, 2021 by Natali Anderson

Astronomers have found strong evidence of a massive planet (or planets) — the first planet(s) in a circumtriple orbit — in a hierarchical triple...

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