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A Neutron Star's Missing "Birth Certificate" Comes to Light

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Space & Astronomy Chinese Academy of Sciences

Hidden "Family Background" of Supernovae Could Affect Cosmic Measurements

In the vast cosmos, supernova explosions are widely regarded as the most brilliant fireworks in the universe. Among them, Type Ia supernovae (SNe Ia) are hailed as "standard candles" due to their highly consistent peak luminosity, making them a key tool for measuring cosmic distances. However, a recent study has found that even SNe Ia that appear nearly identical may hide small "genetic" differenc

Space & Astronomy Astronomy #Chinese Academy of Sciences #Research News #astronomy #astrophysics
Space & Astronomy Chinese Academy of Sciences

Study Rules Out Strong Magnetic Twist in Magnetar X-ray Polarization

Are the large-scale magnetic fields of magnetars dominated by a dipolar structure, or is a significant magnetic-field twist required to explain the observations? A recent study by researchers from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences (CAS) has found that the observed X-ray polarization of two magnetars can be explained by dipole-dominated magnetic fields,

Space & Astronomy Astronomy #Chinese Academy of Sciences #Research News #astronomy #astrophysics
Space & Astronomy Chinese Academy of Sciences

Researchers Reveal First Jet Collimation Profile in an X-ray Binary

Active galactic nuclei (AGN), powered by accreting supermassive black holes, and X-ray binaries (XRBs), powered by accreting neutron stars or stellar-mass black holes, are two representative classes of compact accreting systems. Relativistic collimated jets are among the most spectacular phenomena in these systems. Understanding how these powerful outflows are launched, accelerated, and collimated

Space & Astronomy Astronomy #Chinese Academy of Sciences #Research News #astronomy #astrophysics
Space & Astronomy Chinese Academy of Sciences

Satellite Galaxies Preserve "Kinematic Memory" of Cosmic Filaments

A research team from the Shanghai Astronomical Observatory (SHAO) of the Chinese Academy of Sciences (CAS) has discovered that satellite galaxies retain a measurable "kinematic memory" of matter flowing into and along cosmic filaments. Using a large spectroscopic sample from the Sloan Digital Sky Survey (SDSS) , the team found that satellite galaxies preferentially orbit within planes that contain

Space & Astronomy Astronomy #Chinese Academy of Sciences #Research News #astronomy #astrophysics
Space & Astronomy Chinese Academy of Sciences

A Gaze Through Dust: A Hidden Black Hole Uncovered in a Rare Triple-Galaxy Collision

Galaxy mergers are among the most spectacular and destructive events in the universe. During these encounters, not only are billions of stars redistributed, but the supermassive black holes lurking in the galaxies' centers can also interact with one another. Yet systems where three galaxies merge simultaneously are uncommon. Now, researchers have obtained the first direct observational evidence fo

Space & Astronomy Astronomy #Chinese Academy of Sciences #Research News #astronomy #astrophysics
Space & Astronomy Chinese Academy of Sciences

BESIII Achieves World's Most Precise Measurement of Lambda Hyperon Electric Dipole Moment

The BESIII Collaboration, led by the Institute of High Energy Physics of the Chinese Academy of Sciences, has achieved the world's most precise measurement of the electric dipole moment (EDM) of the Lambda (Λ) hyperon using quantum-entangled Λ–anti-Λ pairs produced in J/ψ decays. The result improves the experimental sensitivity by about three orders of magnitude compared with the previous measurem

Space & Astronomy Technology & Innovation Particle Physics #Chinese Academy of Sciences #Research News #Particle Physics #astronomy #astrophysics #advanced materials #innovation #Fermilab
Space & Astronomy Chinese Academy of Sciences

Study: Declining Star Formation Not Caused by Simple "Fuel Crisis"

The universe has been having fewer and fewer stellar "babies". Over the past 4.5 billion years, the rate of star birth has crashed to less than half of what it once was. But here's the twist: the most essential "fuel" for making stars has barely decreased. This finding comes from an international team led by researchers from the Chinese Academy of Sciences (CAS), in collaboration with the Dark Ene

Space & Astronomy Telescopes Satellites #Chinese Academy of Sciences #Research News #Telescopes #Satellites #astronomy #astrophysics
Space & Astronomy American University

Impact in Action: The Grants and Giving Transforming College of Arts & Sciences

Thanks to significant philanthropic and foundation support over the last year, students across American University’s College of Arts and Sciences are turning what they learn into real-world impact.

Space & Astronomy Environment & Climate Research #American University #Research News #Research · August 20 #research #astronomy #astrophysics #climate #decarbonization
Space & Astronomy DOE

How Twisting Two-Dimensional Materials Led to a New Field of Research

With a twist between layers of graphene, scientists supported by the DOE’s Office of Science created the foundation for twistronics.

Features Space & Astronomy Technology & Innovation #DOE #Office of Science #astronomy #astrophysics #advanced materials #innovation #Oak Ridge National Laboratory #Lawrence Berkeley National Laboratory
Research News Chinese Academy of Sciences

科学家在三重星系并合中发现隐蔽黑洞

Galaxy mergers are an important process in the evolution of the universe, often causing supermassive black holes in the centers of galaxies to approach each other. Triple galaxy merger events are relatively rare in the universe and provide a unique sample for studying the co-evolution of galaxies and black holes.

Space & Astronomy #Chinese Academy of Sciences #科研进展 #CAS #astronomy #astrophysics
Research News Chinese Academy of Sciences

“中国天眼”重绘宇宙演化图景

为什么宇宙越来越难以形成新的恒星？这是星系形成与演化领域的焦点。恒星的诞生，依靠致密的分子气体云。此前学界普遍认为，随着宇宙演化，孕育恒星的冷气体持续消耗，导致造星活动衰退。依据这一经典理论，恒星形成率下降，必然伴随冷气体储备的同步骤减。

Space & Astronomy #Chinese Academy of Sciences #科研进展 #CAS #astronomy #astrophysics
Space & Astronomy DOE

LZ Sees Surprising Result in Search for Dark Matter

The LUX-ZEPLIN experiment observed an unusual particle interaction, but researchers will need more data to confirm.

Features Space & Astronomy Particle Physics #DOE #Office of Science #astronomy #astrophysics #Particle Physics #High Energy Physics #Lawrence Berkeley National Laboratory
Space & Astronomy Washington University in St. Louis

WashU astronomers selected for Roman space telescope programs

Ahead of the scheduled Aug. 30 launch of NASA’s Nancy Grace Roman Space Telescope, several Washington University in St. Louis researchers have been selected to play important roles in the mission’s inaugural science program. The Roman telescope promises to transform our understanding of the universe. NASA will use the Roman telescope to investigate dark energy, discover thousands of exoplanets and

Space & Astronomy Space #Washington University in St. Louis #Newsroom #astronomy #astrophysics
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