Tag Archive for 'ALMA'

This artist’s impression highlights the compactness of molecular gas in a post-starburst galaxy and its lack of star formation. Image credit: ALMA / ESO / NAOJ / NRAO / S. Dagnello / NRAO / AUI / NSF.

Study Sheds New Light on ‘Fall of Star Formation’ in Post-Starburst Galaxies

Apr 26, 2022 by News Staff

Post-starburst galaxies (PSBs) are a rare galaxy class existing between two crucial evolutionary phases — major, gas-rich galaxy mergers and gas-poor,...

This image, taken by Hubble’s Wide Field Camera 3 on January 8, 2022, shows comet C/2014 UN271 (Bernardinelli-Bernstein). Image credit: NASA / ESA / Man-To Hui, Macau University of Science and Technology / David Jewitt, UCLA / Alyssa Pagan, STScI.

Hubble Detects Giant Nucleus of Comet Bernardinelli-Bernstein

Apr 12, 2022 by News Staff

The estimated diameter of the nucleus of comet C/2014 UN271 (Bernardinelli-Bernstein) is approximately 137 km (85 miles) across, making it the largest...

This composite image shows V Hydrae, a carbon-rich AGB star some 1,300 light-years away in the constellation of Hydra. Image credit: ALMA / ESO / NAOJ / NRAO / S. Dagnello, NRAO, AUI & NSF.

ALMA Spots Multi-Ring Structure around Rapidly-Evolving Carbon Star

Mar 29, 2022 by News Staff

Using the Atacama Large Millimeter/submillimeter Wave Array (ALMA), astronomers have observed the carbon-rich star V Hydrae that is apparently transitioning...

This image shows the Orion Molecular Clouds, the target of the VANDAM survey; yellow dots are the locations of the observed protostars on a blue background image made by Herschel; side panels show six young protostars imaged by ALMA (blue) and the VLA (orange). Image credit: NRAO / AUI / NSF.

Astronomers Find Protoplanetary Disks in Orion Molecular Clouds

Mar 25, 2022 by Enrico de Lazaro

Astronomers using NSF’s Karl G. Jansky Very Large Array and the Atacama Large Millimeter/submillimeter Array have detected 97 disks of gas and dust around...

Astronomers Find Obscuring Dust Ring around Supermassive Black Hole in Messier 77

Feb 17, 2022 by News Staff

Astronomers using the Multi AperTure mid-Infrared SpectroScopic Experiment (MATISSE) on ESO’s Very Large Telescope Interferometer have spotted a dense,...

This image shows NGC 1300, a barred spiral galaxy some 61 million light-years away in the constellation of Eridanus. Image credit: ESO / ALMA / NAOJ / NRAO / PHANGS.

Astronomers Spot Spiral within Spiral: NGC 1300

Jan 11, 2022 by Enrico de Lazaro

Using the Atacama Large Millimeter/submillimeter Array (ALMA) and the Multi-Unit Spectroscopic Explorer (MUSE) on ESO’s Very Large Telescope (VLT), astronomers...

This artist’s impression shows a binary stellar system at the start of a common envelope phase. Image credit: Danielle Futselaar, artsource.nl.

ALMA Investigates Nature of Water-Fountain Stellar Systems

Jan 4, 2022 by News Staff

One of the most poorly understood stellar evolutionary paths is that of binary stellar systems undergoing common-envelope evolution, when the enormous...

This is a composite view of X-rays, molecular gas, and warm ionized gas near the Milky Way’s center (yellow represents Hubble data, blue is Chandra data, green is ALMA data, and red is VLA data). The orange-colored features are of glowing hydrogen gas. One such feature, at the top tip of the jet is interpreted as a hydrogen cloud that has been hit by the outflowing jet. The jet scatters off the cloud into tendrils that flow northward. Farther down near the black hole are X-ray observations of superheated gas colored blue and molecular gas in green. These data are evidence that the black hole occasionally accretes stars or gas clouds, and ejects some of the superheated material along its spin axis. The graphic of a translucent, vertical white fan is added to show the suggested axis of a mini-jet from the supermassive black hole at the Galaxy’s heart. Image credit: NASA / ESA / Gerald Cecil, University of North Carolina / Joseph DePasquale, STScI.

Astronomers Spot Nuclear Jet near Milky Way’s Supermassive Black Hole

Dec 10, 2021 by News Staff

Astronomers have uncovered evidence that Sagittarius A*, the 4-million-solar-mass black hole at the center of our Milky Way Galaxy, is not a sleeping monster...

This artist’s impression shows NGP-190387, a dusty star-forming galaxy that is so far away its light has taken over 12 billion years to reach us. Image credit: ESO / M. Kornmesser.

ALMA Detects Fluorine in Distant Star-Forming Galaxy

Nov 8, 2021 by News Staff

Fluorine is one of the most interesting elements for nuclear and stellar astrophysics. Fluorine abundance was first measured for stars other than the Sun...

This artist’s conception shows the dust continuum and molecular lines of carbon monoxide and water seen in the pair of galaxies known as SPT0311-58. Image credit: ALMA / ESO / NAOJ / NRAO / S. Dagnello, NRAO.

ALMA Detects Water and Carbon Monoxide in Distant Star-Forming Galaxy

Nov 3, 2021 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected water and carbon monoxide molecules in a larger member of SPT-S...

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...

REBELS galaxies: green and orange colors represent radiations from ionized carbon atoms and dust particles, respectively, observed with ALMA, and blue represents near-infrared radiation observed with ESO’s VISTA telescope and the NASA/ESA Hubble Space Telescopes. Image credit: ALMA / ESO / NAOJ / NRAO / NASA / ESA / Hubble / Fudamoto et al.

ALMA Spots Two Dust-Obscured Galaxies in Early Universe

Sep 22, 2021 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered two heavily dust-obscured star-forming galaxies — REBELS-12-2...

This composite image of the galaxy cluster MACSJ 0138 shows data from ALMA and Hubble. Image credit: ALMA / ESO / NAOJ / NRAO / S. Dagnello, NRAO / STScI / Whitaker et al.

Early Universe’s Massive Galaxies Had Very Little Amounts of Star-Forming Gas, Study Says

Sep 22, 2021 by News Staff

Massive galaxies in the early Universe should have contained large amounts of cold molecular gas, the fuel required to make stars. But new observations...

Clumps of molecular gas overlaid on Sagittarius A* circumnuclear disk as seen by ALMA in the CS(7-6) line. Yellow circles are thin clumps that are going to be shredded by the gravitational force of supermassive black hole Sagittarius A*. Green circles are dense enough to survive the tidal shredding but are not able to form stars. Purple/pink circles have the needed density to form stars, but no star formation has been observed. Image credit: Hsieh et al. / ALMA / EOS / NAOJ / NRAO.

ALMA Spots Quiescent Molecular Clouds and Tides around Milky Way’s Supermassive Black Hole

Sep 16, 2021 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found thousands of dense gas clumps but, surprisingly, no star formation,...

ALMA Detects Various Organic Molecules in Five Protoplanetary Disks

Sep 15, 2021 by News Staff

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have mapped out 18 organic and inorganic molecules in protoplanetary disks around...

Zoomed in view of an ALMA (red/orange) and Hubble (optical) composite of NGC 4921; it highlights filament structures resulting from the effects of ram-pressure stripping. Image credit: ALMA / ESO / NAOJ / NRAO / S. Dagnello, NRAO / NASA / ESA / Hubble / K. Cook, LLNL / L. Shatz.

Astronomers Find Cosmic Boomerang in Coma Cluster Galaxy

Aug 30, 2021 by News Staff

Using data from the Atacama Large Millimeter Array (ALMA), the Combined Array for Research in Millimeter-Wave Astronomy (CARMA) and the NASA/ESA Hubble...

This ALMA image shows a close-up view on the circumplanetary disk surrounding PDS 70c. Image credit: ALMA / ESO / NAOJ / NRAO / Benisty et al.

ALMA Detects Circumplanetary Disk around Young Exoplanet PDS 70c

Jul 22, 2021 by News Staff

Astronomers using the Atacama Large Millimetre/submillimeter Array (ALMA) have detected a circumplanetary disk — a ring-shaped area where moons and...

This image combines observations of the nearby galaxies NGC 1300, NGC 1087, NGC 3627 (top, from left to right), NGC 4254 and NGC 4303 (bottom, from left to right) taken with the Multi-Unit Spectroscopic Explorer on ESO’s Very Large Telescope. Image credit: ESO / PHANGS.

Astronomers Focus on Star-Forming Regions in Nearby Galaxies

Jul 16, 2021 by News Staff

Astronomers know that stars are born in clouds of gas, but what sets off star formation, and how galaxies as a whole play into it, remains a mystery. To...

This artist’s impression shows the evolution of the Universe beginning with the Big Bang on the left followed by the appearance of the Cosmic Microwave Background. The formation of the first stars ends the cosmic dark ages, followed by the formation of galaxies. Image credit: M. Weiss / Harvard-Smithsonian Center for Astrophysics.

First Generation of Stars Emerged 250-350 Million Years after Big Bang, Astronomers Say

Jun 24, 2021 by News Staff

A team of astronomers from the United Kingdom and the United States has examined six of the most distant galaxies currently known and found that the distance...

An artist’s impression of a galactic wind driven by a supermassive black hole located in the center of a galaxy. Image credit: ALMA / ESO / NAOJ / NRAO.

ALMA Detects Powerful Black-Hole Wind in Distant Quasar

Jun 17, 2021 by News Staff

Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have detected a galactic-scale supermassive black hole-driven wind in HSC J124353.93+010038.5...

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