Tag

Chandra X Ray Observatory

All articles tagged with #chandra x ray observatory

space16 hours ago•9 min saved

Webb’s Red Dots Point to Black Hole Feeding Inside Gas Clouds

JWST has identified over 300 mysterious red-tinted ‘little red dots’ whose origin remains unknown. A new Chandra X-ray Observatory paper reports that one LRD, 3DHST-AEGIS-12014, emits X-rays, aligning with the idea that some LRDs are a transient phase in which a supermassive black hole accretes material from a surrounding gas cloud; X-rays can escape during this process, making the dot visible. If this is correct, these dots should fade as the cloud is consumed, and continued observations including ongoing support for Chandra will be needed to catch such a transition.

via Hackaday|

#astronomy #black-holes #chandra-x-ray-observatory

space16 days ago•89 min saved

X-ray Dot Could Unmask Webb's Little Red Dots

A newly analyzed X-ray source, nicknamed the X-ray dot, observed by Chandra and later in JWST fields, may explain the Webb-detected “little red dots” by showing that these early-universe black holes are enshrouded in dense gas that blocks X-rays; as accretion progresses, gaps in the cocoon can form, allowing X-rays to escape and revealing the black hole’s interior. This supports the idea that little red dots are young supermassive black holes in rapid growth, with future observatories like the Roman Space Telescope expected to help find modern analogues and further illuminate black hole evolution in the early universe.

via Live Science|

#chandra-x-ray-observatory #early-universe #james-webb-space-telescope

space18 days ago•33 min saved

X-Ray Dot Emerges as Key to Mystery of Ancient Cosmic Red Dots

NASA’s Chandra X-ray Observatory and the James Webb Space Telescope have identified an X-ray–emitting ‘dot’ among the mysterious little red dots, suggesting these ancient, ultra-massive objects may represent a new, gas-enshrouded phase of supermassive black hole growth—potentially a “black hole star” stage—most of them located about 12 billion light-years away.

via Yahoo News UK|

#astronomy #black-holes #chandra-x-ray-observatory

space20 days ago•1 min saved

Chandra's X-ray Dot Reveals Clues About Early Universe Black Hole Growth

NASA's Chandra X-ray Observatory spotted a new 'X-ray dot' (3DHST-AEGIS-12014) about 11.8 billion light-years away that resembles the recently found 'little red dots' but emits X-rays, a finding that could connect stellar-mass black holes to the growth of supermassive black holes in the early universe.

via NASA (.gov)|

#chandra-x-ray-observatory #high-redshift #little-red-dots

space25 days ago•4 min saved

Distant X-ray Dot Could Unveil How Early Black Holes Grew

Astronomers using Webb and Chandra detected a faint, compact red source about 11.8 billion light-years away (3DHST-AEGIS-12014) that emits X-rays, unlike most little red dots. This could represent a transitional phase where a rapidly growing black hole is still buried in dense gas, helping link the LRD population to conventional active black holes and refining models of black hole formation in the early universe, though alternative explanations exist and further observations are needed.

via The Daily Galaxy|

#black-holes #chandra-x-ray-observatory #early-universe

science1 month ago•4 min saved

Young Suns Quiet X-ray Glow Faster, Boosting Planet Habitability

New observations of eight star clusters aged 45–750 million years show Sun-like stars dim their X-ray output far faster than previously thought, likely due to declining magnetic activity. This rapid quieting reduces harmful radiation on surrounding planets, potentially helping develop robust atmospheres and life, with data from Chandra, Gaia, and ROSAT.

via NASA Science (.gov)|

#chandra-x-ray-observatory #planetary-habitability #science

science1 month ago•43 min saved

Chandra Captures First Astrosphere Around a Sun-like Young Star

Astronomers using NASA’s Chandra X-ray Observatory have captured the first image of an astrosphere around a Sun-like young star HD 61005 (nicknamed the “Moth”). The extended X-ray emission shows a bubble created by a wind that’s about three times faster and 25 times denser than the young Sun’s, offering insights into how the Sun’s heliosphere may have looked billions of years ago as it moved through the galaxy.

via Good News Network|

#astronomy #astrosphere #chandra-x-ray-observatory

science2 months ago•5 min saved

From Frenzy to Freeze: Chandra Maps a 10-Billion-Year Slowdown in Black Hole Growth

NASA’s Chandra X-ray Observatory shows that supermassive black holes grew rapidly in the early universe but have slowed dramatically over more than ten billion years, likely due to dwindling cold gas, fewer galaxy mergers, and feedback processes; the study combines multiple X-ray datasets to provide a comprehensive view of this long-term decline and its implications for how galaxies evolve.

via The Daily Galaxy|

#accretion #black-holes #chandra-x-ray-observatory

space2 months ago•4 min saved

NASA Turns Space Data into Sound: A Sonic Tour of Jupiter and Saturn

NASA’s Chandra X-ray Observatory is converting solar X-ray data into audible soundscapes, letting listeners hear Jupiter’s auroras and Saturn’s rings. By mapping data attributes like brightness, position, and energy to musical qualities such as pitch and volume, scientists create accessible, immersive representations of space that expand how the public experiences planetary data.

via The Daily Galaxy|

#chandra-x-ray-observatory #jupiter #nasa

astronomy2 months ago•53 min saved

NASA turns Jupiter, Saturn and Uranus data into audible soundtracks

NASA's Chandra X-ray Observatory has converted X-ray and multiwavelength observations of Jupiter, Saturn and Uranus into immersive soundscapes, translating brightness, energy and planetary positions into musical tones that accompany a rare planetary alignment.

via Space|

#astronomy #chandra-x-ray-observatory #jupiter

space2 months ago•2 min saved

Six-Planet Night Sky Parade Graces February Evenings

Six planets—Jupiter, Saturn, Venus, Mercury, Neptune and Uranus—will be visible at once in the early-evening sky over the next few days, a rare alignment last seen with all seven last year and not due again until 2040. Neptune and Uranus require binoculars or a telescope, while Venus will be the brightest and Mercury the faintest near the horizon. The best viewing windows are after sunset (about 5:45 pm UK / 6:00 pm US), with the lineup forming a curved arc across the western sky; the pattern differs in the southern hemisphere. NASA has released new sonifications from the Chandra X-ray Observatory for Jupiter, Saturn, and Uranus. The Moon will also be visible, and observers should avoid looking at the Sun through binoculars or telescopes.

via The Guardian|

#chandra-x-ray-observatory #nasa #planetary-alignment

astronomy3 months ago•53 min saved

Chandra captures first X-ray image of a sun-like star’s wind-driven bubble

Astronomers using NASA’s Chandra X-ray Observatory imaged the faint X-ray glow around HD 61005, a young sun‑like star about 120 light‑years away, revealing a wind‑blown bubble called an astrosphere—the first X-ray evidence of such a bubble around a star similar to the Sun. HD 61005 is ~100 million years old, and its stellar wind is roughly three times faster and 25 times denser than the Sun’s today, inflating a brighter astrosphere in a dense interstellar environment. The finding offers a rare glimpse into the early solar system’s conditions and how stellar winds shape planetary environments.

via Space|

#astronomy #astrosphere #chandra-x-ray-observatory

space3 months ago•35 min saved

James Webb and Chandra Reveal Likely Most Distant Protocluster, Challenging Cosmology

Astronomers using the James Webb Space Telescope and the Chandra X-ray Observatory have captured the clearest image yet of a galaxy protocluster, JADES‑ID1, located about 12.7 billion light‑years away. The structure hosts at least 66 galaxies with a combined mass of roughly 20 trillion suns, embedded in a huge cloud of hot gas detected in X‑rays. Formed when the universe was about 1 billion years old, this protocluster appears more massive and earlier than current cosmological models predict, sparking questions about how such enormous structures grow in the early universe.

via Yahoo|

#chandra-x-ray-observatory #early-universe #jades-id1

space3 months ago•2 min saved

Ancient Protocluster Defies Early-Universe Timing

Astronomers using the James Webb Space Telescope and the Chandra X-ray Observatory identified JADES-ID1 as a protocluster with at least 66 galaxies and enveloped in million-degree gas, already amassing about 20 trillion solar masses just one billion years after the Big Bang—far earlier than models predict and prompting questions about how the universe’s largest structures form.

via Universe Today|

#chandra-x-ray-observatory #early-universe #galaxy-cluster

science4 months ago•6 min saved

Chandra Expands X-ray Universe With 400k-Source Catalog and Sonic Map

NASA's Chandra X-ray Observatory released CSC 2.1, a vastly expanded catalog with more than 400,000 X-ray sources and 1.3 million detections up to 2020, plus new imagery of the Galactic Center around Sagittarius A* and a 22-year sonification of Chandra data—demonstrating cross-mission science with JWST and Hubble and that Chandra continues observing beyond 2021.

via NASA (.gov)|

#chandra-source-catalog #chandra-x-ray-observatory #csc-21