Tag Archive for 'Gas'

The Radcliffe Wave next to our Sun (yellow dot), inside a cartoon model of the Milky Way. Blue dots are clusters of baby stars. The white line is a theoretical model by Konietzka et al. that explains the current shape and motion of the wave. The magenta and green lines show how the wave will move in the future. Image credit: Ralf Konietzka / Alyssa Goodman / WorldWide Telescope.

Radcliffe Wave is Oscillating, Astronomers Find

Feb 26, 2024 by News Staff

Our Sun lies within 300 parsecs (around 1,000 light-years) of the 2,700-parsec- (around 9,000-light-year-) long sinusoidal chain of dense gas clouds known...

Multiwavelength image of the massive galaxy cluster SDSS J1531+3414. Image credit: NASA / CXC / SAO / Omoruyi et al. / STScI / Tremblay et al. / ASTRON / LOFAR / NASA / CXC / SAO / N. Wolk.

Astronomers Detect Mega-Eruption from Supermassive Black Hole in Distant Galaxy Cluster

Feb 22, 2024 by News Staff

Some of the gas sent gas away from the supermassive black hole — which is located in the center of the galaxy cluster SDSS J1531+3414 (SDSS J1531...

An artist’s conception of the clouds flowing out from the center of the Milky Way, entrained in a very hot wind that has accelerated them to velocities of many hundreds of km per second. Image credit: NSF / GBO / P. Vosteen.

Astronomers Spot Hundreds of Massive Gas Clouds Escaping Milky Way’s Center

Feb 20, 2024 by News Staff

Using new 21-cm radio observations made with NSF’s Green Bank Telescope, astronomers have discovered over 250 neutral gaseous clouds being blasted out...

This Hubble image shows Arp 295a, a member of the galaxy group Arp 295. Image credit: NASA / ESA / J. Dalcanton, University of Washington / R. Windhorst, Arizona State University / Gladys Kober, NASA & Catholic University of America.

Hubble Spots 250,000-Light-Year-Long Bridge of Stars in Arp 295

Jan 30, 2024 by Enrico de Lazaro

Using the NASA/ESA Hubble Space Telescope, astronomers have taken a detailed image of part of a 250,000-light-year-long bridge of stars and gas that stretches...

Cardillo-Zallo et al. report on a nanoscale system consisting of endohedral fullerenes encapsulated within single-walled carbon nanotubes, capable of the delivery and release of krypton atoms on-demand, via coalescence of host fullerene cages under the action of the electron beam (in situ) or heat (ex situ). Image credit: Cardillo-Zallo et al., doi: 10.1021/acsnano.3c07853.

Physicists Create One-Dimensional Noble Gas

Jan 23, 2024 by News Staff

Using advanced transmission electron microscopy (TEM) methods, physicists at the University of Nottingham have successfully trapped atoms of krypton inside...

ASKAP radio continuum image of ORC 1 (contours) overlaid onto a DES 3-color composite image. Two galaxies of interest: ‘C’ lies near the center of ORC 1 and ‘S’ coincides with the southern radio peak. Image credit: Norris et al, arXiv: 2006.14805.

Astronomers Solve Mystery of Odd Radio Circles

Jan 9, 2024 by News Staff

Odd radio circles (ORCs), a class of extragalactic astronomical sources discovered in 2019, are in fact shells formed by outflowing galactic winds, possibly...

This high-definition image from Webb’s NIRCam instrument unveils intricate details of the supernova remnant Cassiopeia A; it shows the expanding shell of material slamming into the gas shed by the star before it exploded. Image credit: NASA / ESA / CSA / STScI / D. Milisavljevic, Purdue University / T. Temim, Princeton University / I. De Looze, University of Gent.

Webb Captures Stunning New Image of Cassiopeia A

Dec 11, 2023 by News Staff

Objects in space reveal different aspects of their composition and behavior at different wavelengths of light. A supernova remnant called Cassiopeia A...

The full-field star-subtracted image of G0.253+0.016. Image credit: Ginsburg et al., doi: 10.3847/1538-4357/acfc34.

Webb Observes Mysterious Dark Molecular Cloud in Milky Way’s Central Region

Dec 4, 2023 by News Staff

G0.253+0.016, nicknamed ‘the Brick’ due to its opacity, is among the best-studied infrared dark clouds in our Milky Way Galaxy. It is well-known for...

This Webb image shows a Herbig-Haro object called HH 797. Image credit: NASA / ESA / CSA / Webb / T. Ray, Dublin Institute for Advanced Studies.

Webb Reveals Herbig-Haro Object in Unprecedented Detail

Nov 28, 2023 by Enrico de Lazaro

The NASA/ESA/CSA James Webb Space Telescope has captured a very detailed image of the Herbig-Haro object 797 (HH 797), which is located in the northern...

This Webb image of NGC 346 traces emission from cool gas and dust. Image credit: NASA / ESA / CSA / STScI / N. Habel, JPL / P. Kavanagh, Maynooth University.

Webb Captures Mid-Infrared Image of NGC 346

Oct 10, 2023 by Enrico de Lazaro

A new image taken with the Mid-Infrared Instrument (MIRI) onboard the NASA/ESA/CSA James Webb Space Telescope shows streamers of gas and dust studded with...

This image from Webb’s NIRCam short-wavelength channel shows the Orion Nebula, its stars, and many other objects in unprecedented high definition in the near infrared. Many of the young stars are surrounded by dense disks of gas and dust which may be forming planets. In other cases, those disks are being destroyed by the intense ultraviolet radiation and strong winds from the most massive stars in the region. Many of these photoevaporating disks are visible if you zoom into the image. Image credit: NASA / ESA / CSA / M. McCaughrean / S. Pearson.

Webb Snaps New Pics of Orion Nebula

Oct 4, 2023 by Enrico de Lazaro

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have captured stunning new images of the Orion Nebula, a diffuse nebula located approximately...

This Webb image shows HH 211, a Herbig-Haro object located 1,000 light-years away in the constellation of Perseus. Image credit: NASA / ESA / CSA / Webb / T. Ray, Dublin Institute for Advanced Studies.

Outflows from Young Protostars are Mostly Molecular, Webb Astronomers Find

Sep 17, 2023 by Natali Anderson

Herbig-Haro (HH) objects are formed when stellar winds or jets of gas spewing from protostars form shock waves colliding with nearby gas and dust at high...

SPT-CL J2215-3537 resembles a blue cloud with a hazy golden light at its core. The cluster is set against the blackness of space, which is dotted with white, orange and blue specks of light. A combination of X-ray, ultraviolet, optical, and infrared light, was used to create the image. The blue cloud represents X-ray gas observed by NASA’s Chandra X-ray Observatory. The cloud is soft, and uniform in texture. Over time, galaxy clusters often merge or collide. These collisions cause disturbances and sharp features in a cluster’s gas. When a cluster takes on a smooth, calm appearance, as found here in SPT-CL J2215-3537, it indicates that no such collisions have occurred for a very long time. Astronomers call these galaxy clusters ‘relaxed.’ The hazy golden light at the heart of the cloud represents a massive central galaxy with a large amount of star formation. This central galaxy is quite isolated within the blue gas cloud. There are relatively few nearby specks of light near the central galaxy, and none are as bright or as large. No other large galaxies have been found within 600,000 light-years of the central galaxy. This implies that SPT-CL J2215-3537 has not experienced a galaxy merger in the last billion years. Image credit: NASA / CXC / MIT / M. Calzadilla / STScI / HST / N. Wolk.

Chandra Spots ‘Relaxed’ Galaxy Cluster in Distant Universe

Jul 21, 2023 by Enrico de Lazaro

The dynamically relaxed galaxy cluster SPT-CL J2215-3537 is about 8.4 billion light-years from Earth, making it the farthest galaxy cluster ever spotted...

This VISTA image shows IC 2631, a reflection nebula some 500 light-years away in the southern constellation of Chamaeleon. Image credit: ESO / Meingast et al.

VISTA Observes Beautiful Reflection Nebula

Jul 17, 2023 by Enrico de Lazaro

ESO’s Visible and Infrared Survey Telescope for Astronomy (VISTA) shot this image of the reflection nebula IC 2631. This VISTA image shows IC 2631, a...

Iglesias-Groth used spectra from NASA’s Spitzer Space Telescope to conduct a search for the aromatic amino acid tryptophan in the interstellar gas of the young star cluster IC 348. Image credit: Jorge Rebolo-Iglesias / NASA / Spitzer Space Telescope.

Amino Acid Tryptophan Detected in Young Star Cluster

Jun 20, 2023 by Natali Anderson

Using infrared spectral data from NASA’s Spitzer Space Telescope, Instituto de Astrofísica de Canarias astronomer has detected the aromatic amino acid...

An artist’s impression of a black hole accretion. Image credit: John A. Paice.

Astronomers Observe Extraordinary Accretion Event in Distant Galaxy

May 15, 2023 by Enrico de Lazaro

AT2021lwx occurred nearly 8 billion years ago and was more than 10 times brighter than any known supernova explosion. The event was likely caused by the...

This Hubble image shows JO175, a jellyfish galaxy located 650 million light-years away in the constellation of Telescopium. Image credit: NASA / ESA / Hubble / M. Gullieuszik / GASP Team.

Hubble Zooms in on Jellyfish Galaxy JO175

May 1, 2023 by Enrico de Lazaro

The NASA/ESA Hubble Space Telescope has produced an outstanding image of the jellyfish galaxy JO175. This Hubble image shows JO175, a jellyfish galaxy...

This image shows the Spiderweb protocluster, seen at a time when the Universe was only 3 billion years old. Image credit: ESO / Di Mascolo et al. / NASA / ESA / Hubble / H. Ford.

ALMA Detects Huge Reservoir of Hot Gas in Very Distant Galaxy Protocluster

Mar 29, 2023 by News Staff

The galaxy protocluster is question is forming around the recently-discovered Spiderweb galaxy (also known as MRC 1138-262 or PKS 1138-262), an object...

This artist’s impression shows ‘Oumuamua, the first interstellar object discovered in our Solar System. Recent observations show that the object is moving faster than predicted while leaving the Solar System. Astronomers assume that venting material from its surface due to solar heating is responsible for this behavior. This outgassing can be seen in this artist’s impression as a subtle cloud being ejected from the side of the object facing the Sun. Image credit: NASA / ESA / Hubble / ESO / M. Kornmesser.

Astronomers Offer New Explanation for Interstellar Object Oumuamua’s Unusual Acceleration

Mar 23, 2023 by News Staff

The previously unreconciled acceleration of 1I/2017 U1 ‘Oumuamua, a strange object of extrasolar origin discovered on October 19, 2017 by the Pan-STARRS...

This Hubble image shows the jellyfish galaxy JW100 (seen edge-on in the lower right). Image credit: NASA / ESA / Hubble / M. Gullieuszik / GASP Team.

Hubble Focuses on Jellyfish Galaxy JW100

Mar 20, 2023 by Enrico de Lazaro

Streams of star-forming gas dripping from the disk of a spiral galaxy called JW100 are formed by a process called ram pressure stripping, and their resemblance...

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