Spider Pulsars’ Missing Link Found – Astronomers Validate Longstanding Theory
Scientists from the Chinese Academy of Sciences’ National Astronomical Observatories (NAOC), along with their international partners, used the Five-hundred-meter Spherical radio Telescope (FAST) to identify a binary pulsar system with an orbital period of 53 minutes. This newly discovered system, known as PSR J1953+1844 or M71E, bridges a previously existing gap in our understanding of the evolutionary stages of spider pulsar systems.
UNLV Profs Advance Our Understanding of Black Holes, Planet Formation, and Mars
A lot of the time, when someone mentions the University of Nevada Las Vegas, they’re speaking of its renowned School of Hospitality, its fast-growing medical school or its Jerry Tarkanian-era men’s basketball teams. But UNLV is also one of the nation’s top research universities, awarded an R1 classification (“very high research activity”) from the Carnegie Classification of Institutions of Higher Education. Join the Weekly as we peek into the laboratories where world-changing scientific research is ongoing.
Alternative models could clarify Universe's expansion debate
The quest for the true value of the Hubble constant (H0) tension which gives a measure of the current expansion of the Universe is still on. The fervent debate today is about the discrepancy between the H0 values obtained from type Ia supernovae (SNe Ia) and from the Cosmic Microwave Background Radiation (CMB), a radiation emitted from the early Universe close to its origin.
Using the Chinese Fast radio telescope, an international group of astronomers has discovered a quasi-periodic wobble in the radio band in the galactic microquasar Grs 1915+105. The signal has an approximate period of 0.2 seconds and does not seem to occur all the time. It could be caused by a misalignment between the black hole's axis of rotation and its accretion disk
More than three years after April 28, 2020, an international team of scientists reports the outcome of the observations made with the Chinese Fast radio telescope of the first galactic fast radio burst, reporting that they have discovered a radio pulsar phase of the magnetar that emitted it . Flashes and pulses, therefore, with different characteristics but originating from the same object, the magnetar.
Astronomers shed new light on formation of mysterious fast radio bursts
More than 15 years after the discovery of fast radio bursts (FRBs) – millisecond-long, deep-space cosmic explosions of electromagnetic radiation – astronomers worldwide have been combing the universe to uncover clues about how and why they form.