Browsing Tag
galaxies
Teaming up Radio and Sub-mm/FIR Observations to Probe Dusty Star-Forming Galaxies
The radio spectra of DSFGs are a combination of a flat free-free component from HII regions containing massive ionizing stars and a steep synchrotron component resulting from relativistic electrons accelerated by supernova remnants. An…
Early galaxy seen by JWST contains giant young stars and supernovae
GLASS-z12, a very early galaxy viewed by the James Webb Space TelescopeNaidu et al, P. Oesch, T. Treu, GLASS-JWST, NASA/CSA/ESA/STScI
Astronomers have used the James Webb Space Telescope (JWST) to reveal…
ASTRONOMERS DISCOVER 49 NEW GALAXIES in UNDER THREE HOURS
Examples of individual detections of the gas detected by MeerKAT
The 49ers - the 49 new gas-rich galaxies detected by the MeerKAT radio telescope in South Africa. Each detection is shown as coloured contours.
Four nearby galaxies as…
What Have We Learned about the Life Cycle of Radio Galaxies from New Radio Surveys
The results described above, schematically summarised in the illustration in Figure 6, have already expanded our view of the life cycle of radio sources.The fraction of remnants sources is consistently found in radio selected samples to…
Bizarre galaxy in the early universe died extremely young
The James Webb Space Telescope can capture detailed images of distant galaxiesJADES Collaboration
A strange galaxy in the early universe lived fast and died young. It is the most distant “dead” galaxy, meaning it is…
X-shaped radio galaxies: probing jet evolution, ambient medium dynamics, and their intricate…
1 IntroductionThe examination of emission spectrum observed from a galaxy allows for the categorization of galaxies into two primary types: normal and active galaxies. The emission from the core of a normal galaxy primarily arises from…
Huge set of galaxies is set to form largest cluster in known universe
Artist’s impression of the quasar that astronomers used to search for early galaxiesESO/M. Kornmesser
One of the largest quasars in the early universe has helped to reveal a vast “protocluster” of nascent galaxies…
Telescopes Show the Milky Way’s Black Hole is Ready for a Kick – NASA
This artist’s illustration depicts the findings of a new study about the supermassive black hole at the center of our galaxy called Sagittarius A* (abbreviated as Sgr A*). As reported in our latest press release, this result found that…
S0 Galaxies: Outer Gas Accretion through Tidal Interaction and Minor Merging
Galaxies, Vol. 11, Pages 119: S0 Galaxies: Outer Gas Accretion through Tidal Interaction and Minor Merging
Galaxies doi: 10.3390/galaxies11060119
Authors:
Olga Sil’chenko
Alexei V. Moiseev
Alexandrina Smirnova
Roman Uklein…
JWST has taken extraordinary images of 19 nearby spiral galaxies
The James Webb Space Telescope captured 19 face-on spiral galaxiesNASA, ESA, CSA, STScI, J. Lee (STScI), T. Williams (Oxford), PHANGS Team, E. Wheatley (STScI)
The James Webb Space Telescope (JWST) has released a…
Galaxy smash-ups may explain strange light from early universe
Merging galaxies from the early universe imaged by the James Webb Space TelescopeS. Martin-Alvarez
Observations from the James Webb Space Telescope (JWST) have revealed dim galaxies smashing together, which could…
JWST has taken extraordinary images of 19 nearby spiral galaxies
The James Webb Space Telescope captured 19 face-on spiral galaxiesNASA, ESA, CSA, STScI, J. Lee (STScI), T. Williams (Oxford), PHANGS Team, E. Wheatley (STScI)
The James Webb Space Telescope (JWST) has released a…
Mysterious radio burst came from group of galaxies in distant universe
An artist’s impression (not to scale) of the path of the fast radio burst FRB 20220610AM. Kornmesser/European Southern Observatory
An unexplained flash of radio waves that hit Earth in 2022 came from a small group of…
Formation of Transitional cE/UCD Galaxies through Massive/Dwarf Disc Galaxy Mergers
3.1. General Picture of the Minor Merging DynamicsThe initial state of the system was chosen so that the satellite passed through the MW disc at the first pericentric approach and each next approach in the numerical experiment. Figure 3…
Large Magellanic Fireworks – NASA
The Hubble Space Telescope captured this image of a stellar explosion throwing out sheets of debris in the nearby Large Magellanic Cloud galaxy on July 7, 2003. Since its 1990 launch, Hubble has changed our fundamental understanding of…
Meet the Infrared Telescopes That Paved the Way for NASA’s Webb – NASA
The Webb telescope has opened a new window onto the universe, but it builds on missions going back 40 years, including Spitzer and the Infrared Astronomical Satellite.
On Dec. 25, NASA will celebrate the two-year launch anniversary of…
Weird cosmic clumping hints our understanding of the universe is wrong
A vast survey of more than 25 million galaxies confirms we still can’t be sure how much matter clusters together, suggesting something is awry with the standard model of cosmology
Largest stream of stars ever found could teach us about dark matter
The black streak is the newly discovered Giant Coma Stream, which is ten times as long as the Milky WayWilliam Herschel Telescope/Román et al.
Astronomers have found the biggest stream of stars ever recorded. This…
Radio signals unveil secrets of massive galaxies
Credit: CC0 Public Domain
Black holes—the cosmic behemoths known for powering some of the brightest radio wave sources in the universe—were…
Dwarf galaxies use 10-million-year quiet period to churn out stars
University of Michigan astronomer Sally Oey studied a star-forming region in host galaxy, NGC 2366, which is a typical dwarf irregular galaxy. Credit: Observatorio de…
NASA’s Webb, Hubble Combine to Create Most Colorful View of Universe – NASA
NASA’s James Webb Space Telescope and Hubble Space Telescope have united to study an expansive galaxy cluster known as MACS0416. The resulting panchromatic image combines visible and infrared light to assemble one of the most…
Construction on NASA Mission to Map 450 Million Galaxies Is Under Way – NASA
Key elements are coming together for NASA’s SPHEREx mission, a space telescope that will create a map of the universe like none before.
NASA’s SPHEREx space telescope is beginning to look much like it will when it arrives in Earth…
Euclid space telescope releases its first stunning full-colour images
The European Space Agency’s (ESA) Euclid space telescope has sent back its first science images, and they are absolutely stunning. Each of the five images of sparkling cosmic objects will eventually be a part of…
Hubble Captures a Galactic Dance – NASA Science
2 min read
Hubble Captures a Galactic Dance
NASA’s Hubble Space Telescope captures the dance of interacting galaxies in Arp-Madore 2339-661 (NGC 7733, NGC 7734).
ESA/Hubble and NASA, J. Dalcanton, Dark Energy…
Hubble Examines Entrancing Galaxy in Eridanus – NASA Science
2 min read
Hubble Examines Entrancing Galaxy in Eridanus
NASA’s Hubble Space Telescope’s view of NGC 685 in the constellation Eridanus, the River.
NASA, ESA, and J. Lee (Space Telescope Science Institute); Processing: Gladys…
Distant galaxies are gobbling up an unexpected amount of gas
James Webb Space Telescope’s infrared image of the galaxy cluster El GordoNASA, ESA, CSA
Galaxies in the early universe have fewer metals than expected. Observations from the James Webb Space Telescope (JWST) have…
Some of the fastest stars in the Milky Way come from other galaxies
Extreme-velocity stars, which travel through the Milky Way with speeds of hundreds of kilometres per second, may come from dwarf…
Odd radio circles in space may come from black holes at their centres
Astronomers have taken clearest images yet of "odd radio circles" – mysterious radio waves a million light years across – and they…