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Jul 01, 2026

New VLBI Observation Reveals a Rare, Compact, Fading Jet in an Intermediate-Mass Black Hole Merger System

The researchers conducted a dedicated study of the nearby dwarf galaxy merger system SDSS J101747.09+393207.7 (also known as RGG66), and providing new clues for understanding how galaxy mergers trigger black hole accretion and black hole...Intermediate-mass black holes (IMBHs, ~10² - 10⁶ M☉) bridge the gap between stellar-mass and supermassive black holes. They are crucial for understanding key scientific questions, such as the growth of black hole mass and the co-evolu...
Jun 30, 2026

Cosmic Duet：When a Pulsating Star Meets Tidal Locking

The researchers has unveiled the secrets of this system using data from NASA’s TESS space telescope and ground-based observations.About 467 light-years away, a stellar system designated TIC 197757000 is performing a cosmic dance—two stars orbiting each other every 2.2 days. Now, a team led by Ph.D. student Shahidin Yaqup and his supervisor Prof. Ali Esamdin at the...
Jun 26, 2026

H2CO Reveals the Dynamical Characteristics of Early Star Formation in Planck Cold Cores

The researchers conducted an observational study of formaldehyde (H2CO) absorption lines at the 6 cm band toward 73 Planck cold cores using the Nanshan 26-meter radio telescope.Recently, Yernar Imanaly, a doctoral student in the star formation and evolution group at the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences, conducted an observational study of formaldehyde (H2CO) absorption lines ...
Jun 24, 2026

A New Study Uncovers Unique Radiation Secrets of a Pulsar

The resaercher carried out comprehensive observational analysis of pulsar PSR B0823+26 using China’s Five-hundred-meter Aperture Spherical radio Telescope (FAST). Pulsars are rapidly spinning cosmic lighthouses, and some of them have two emission phases: an active bright state and a quiescent faint state. Signals during dormancy are extremely weak, making detailed observations difficult for a long...
Jun 17, 2026

A Star Feeds Its Companion: Astronomers Reveal the True Face of Its Accretion Disk

The researchers have constructed the first comprehensive profile of this long-period system (orbital period approximately 21.6 days), and discovered that the transferred material does not directly impact the primary star. Instead, it for...There exists a unique class of binary systems known as Algol-type binaries. These systems consist of a hot primary star and a cooler companion. The companion, having expanded to fill its Roche lobe, transfers material via a steady stream...
Jun 16, 2026

Mildly Recycled Pulsars Trace Two Evolutionary Pathways in Intermediate-Mass Binaries

The researchers conducted long-term follow-up timing observations of two newly discovered binary pulsars, PSRs J1929+4105 and J2359+4239, and obtained phase-connected timing solutions for the first time. The study reveals that both pulsa...Using the Five-hundred-meter Aperture Spherical radio Telescope (FAST), the researchers from Xinjiang Astronomical Observatory, Chinese Academy of Sciences, conducted long-term follow-up timing observations of two newly discovered binary...

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