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X Ray Astronomy

All articles tagged with #x ray astronomy

Black Hole Tears White Dwarf, Hinting at Hidden Intermediate-Mass BHs
science3 days ago

Black Hole Tears White Dwarf, Hinting at Hidden Intermediate-Mass BHs

Astronomers using China’s Einstein Probe spotted an extreme X-ray outburst (EP250702a) in a distant galaxy that models as an intermediate-mass black hole tearing apart a white dwarf, a finding supported by HKU simulations and follow-up observations. The event’s unusual timing and rapid evolution provide what researchers call the first direct evidence of this feeding process and could help uncover the long-m missing population of intermediate-mass black holes, with implications for multi-messenger astronomy.

via The Daily Galaxy|
#black-hole#ep250702a#intermediate-mass-black-hole
XRISM reveals the turbulent winds around supermassive black holes
astronomy8 days ago

XRISM reveals the turbulent winds around supermassive black holes

NASA/JAXA’s XRISM X‑ray mission uses high‑resolution spectroscopy to measure gas motions around supermassive black holes, notably M87* and the Perseus cluster, unveiling the strongest turbulence seen near a black hole and the kinetic energy of surrounding gas. This helps explain how black holes heat their environments and influence galactic evolution; findings published late Jan 2026 in Nature and built on XRISM’s 2023 launch in collaboration with ESA.

via Space|
#astronomy#black-holes#galaxy-clusters
New cosmic tunnels: Local Hot Bubble hosts possible interstellar channels to other stars
science1 month ago

New cosmic tunnels: Local Hot Bubble hosts possible interstellar channels to other stars

Astronomers using the eROSITA X-ray instrument have mapped a hot, low-density plasma channel extending from the Local Hot Bubble toward Centaurus (and possibly toward Canis Major), a finding that supports the idea of interstellar “tunnels” linking the solar neighborhood to distant stars and suggesting a larger network of channels in the Milky Way; researchers note more data are needed to fully understand these structures.

via Earth.com|
#erosita#interstellar-tunnel#local-hot-bubble
Massive Black Hole Reveals Its Hidden Secrets
science1 month ago

Massive Black Hole Reveals Its Hidden Secrets

Using XRISM's high-resolution instruments alongside ESA's XMM-Newton and NASA's NuSTAR, scientists captured unprecedented details of a supermassive black hole in galaxy MCG–6-30-15, confirming relativistic effects near the event horizon, identifying multiple wind zones, and challenging previous models of distant reflection, thus advancing our understanding of black hole physics and galaxy growth.

via Indian Defence Review|
#black-hole#galaxy-evolution#relativistic-reflection
XRISM reveals unexpected speeds in cosmic wind from X-ray binary
science-and-exploration5 months ago

XRISM reveals unexpected speeds in cosmic wind from X-ray binary

The XRISM mission has discovered that the winds from a neutron star system are unexpectedly dense and slower than those from supermassive black holes, challenging current understanding of how such winds form and influence their environments. The findings suggest that differences in accretion disc temperature and size may explain the variations, providing new insights into cosmic feedback mechanisms and galaxy evolution.

via European Space Agency|
#black-holes#cosmic-winds#neutron-star
Scientists Suggest Earth Is Inside a Cosmic Void Based on Early Universe Echoes
science7 months ago

Scientists Suggest Earth Is Inside a Cosmic Void Based on Early Universe Echoes

Recent observations using the eROSITA telescope have revealed that the Local Hot Bubble surrounding our solar system is an irregular, dynamic structure shaped by multiple supernova explosions and possibly connected to other galactic features through interstellar tunnels, providing new insights into the active and interconnected nature of our galaxy's environment.

via The Brighter Side of News|
#galactic-structure#interstellar-tunnels#local-hot-bubble