https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Russian astronomer Valerij Kozhevnikov has performed photometric observations of a candidate cataclysmic variable known as LAMOST J035913.61+405035.0. He detected 14 eclipses of this system. The finding was reported in a paper published October 9 on the pre-print server arXiv. https://phys.org/news/2024-10-astronomer-eclipses-candidate-cataclysmic-variable.html Astronomy Wed, 16 Oct 2024 09:30:01 EDT news648289604 Using the MeerKAT radio telescope, astronomers have observed eclipses in the radio emission of a pulsar known as PSR J0024−7204O. Results of the observational campaign, published on the preprint server arXiv, could help us better understand the nature and behavior of this pulsar. https://phys.org/news/2024-07-astronomers-eclipses-pulsar-psr-j00247204o.html Astronomy Tue, 30 Jul 2024 08:10:01 EDT news641484538 Using NASA's Transiting Exoplanet Survey Satellite (TESS), European astronomers have discovered an eclipsing binary in the open cluster NGC 2232. The binary, designated TIC 43152097, is the first such system detected in this cluster. The finding is reported in a paper published July 26 on the preprint server arXiv. https://phys.org/news/2023-08-eclipsing-binary-cluster-ngc.html Astronomy Wed, 02 Aug 2023 09:10:02 EDT news610181507 Stars with the mass of the sun or larger are typically accompanied by one or more orbiting companion stars. The system forms when gravity contracts the gas and dust of an interstellar cloud until clumps develop that are dense enough to coalesce into stars. Multiple stellar systems develop, according to one model, when the cloud has a slight spin. That generates a disk that then fragments to produce multiple stars. https://phys.org/news/2022-07-triply-eclipsing-stellar.html Astronomy Fri, 01 Jul 2022 12:08:31 EDT news575896105 Using data from NASA's TESS satellite, Chinese astronomers have investigated a binary star known as OO Dra. The study found that this object is an Algol-type binary that was formed as a result of an extremely helium-poor mass accretion process. The findings are reported in a paper published August 6 on the arXiv pre-print repository. https://phys.org/news/2021-08-oo-dra-algol-type-binary-extremely.html Astronomy Tue, 17 Aug 2021 09:00:02 EDT news548408946 Scientists from the University of Sheffield have discovered a pulsating ancient star in a double star system, which will allow them to access important information on the history of how stars like our Sun evolve and eventually die. https://phys.org/news/2020-03-scientists-pulsating-star-eclipsing.html Astronomy Mon, 16 Mar 2020 12:00:06 EDT news503576509 Astronomers using data from NASA's Transiting Exoplanet Survey Satellite (TESS) have shown that Alpha Draconis, a well-studied star visible to the naked eye, and its fainter companion star regularly eclipse each other. While astronomers previously knew this was a binary system, the mutual eclipses came as a complete surprise. https://phys.org/news/2020-01-tess-alpha-draconis-eclipses.html Astronomy Tue, 07 Jan 2020 07:20:48 EST news497604040 In 2019, when Wolf Cukier finished his junior year at Scarsdale High School in New York, he joined NASA's Goddard Space Flight Center in Greenbelt, Maryland, as a summer intern. His job was to examine variations in star brightness captured by NASA's Transiting Exoplanet Survey Satellite (TESS) and uploaded to the Planet Hunters TESS citizen science project. https://phys.org/news/2020-01-tess-mission-uncovers-world-stars.html Astronomy Tue, 07 Jan 2020 03:14:00 EST news497589229 Russian astronomer Valery Kozhevnikov has conducted photometric observations of the cataclysmic variable (CV) IPHAS J013031.89+622132.3 (J0130 for short), finding that the object exhibits deep eclipses. The discovery, presented in a paper published December 17 on arXiv.org, could provide more clues on the nature of this CV. https://phys.org/news/2019-12-deep-eclipses-cataclysmic-variable-j0130.html Astronomy Fri, 27 Dec 2019 09:00:01 EST news496648215 Astronomers use stellar eclipses to study the atmosphere of accretion disks around compact stars. SRON-researchers observed this method on a low-mass X-ray binary. They find a thicker atmosphere than predicted and distinguish two different gas components. The research was published in Astronomy & Astrophysics. https://phys.org/news/2018-12-astronomers-atmosphere-accretion-disk-x-ray.html Astronomy Wed, 12 Dec 2018 09:47:07 EST news463830420 Astronomers at the Open University have discovered the first quintuple star system containing two eclipsing binary stars. Details of the five star system, the first of its kind to be found, will be presented by Marcus Lohr of the Open University in a talk on Wednesday 8 July at the National Astronomy Meeting at Venue Cymru, Llandudno, Wales. https://phys.org/news/2015-07-star-doubly-eclipsing.html Astronomy Wed, 08 Jul 2015 06:42:18 EDT news355556529 A study of "MY Camelopardalis" binary system, published in the journal Astronomy & Astrophysics, shows that the most massive stars are made up by merging with other smaller stars, as predicted by theoretical models. https://phys.org/news/2014-12-astronomers-stars-merging-supermassive-star.html Astronomy Fri, 05 Dec 2014 12:50:01 EST news337005475 A team of astronomers from the UK, Germany and Spain have observed the remnant of a stellar collision and discovered that its brightness varies in a way not seen before on this rare type of star. By analysing the patterns in these brightness variations, astronomers will learn what really happens when stars collide. This discovery will be published in the 27 June 2013 issue of the journal Nature. https://phys.org/news/2013-06-survivor-stellar-collision-pulsating-star.html Astronomy Fri, 28 Jun 2013 08:30:43 EDT news291627029 The study of the "Demon star", Algol, made by a research group of the University of Helsinki, Finland, has received both scientific and public attention. The period of the brightness variation of this eclipsing binary star has been connected to good prognoses three millennia ago. This result has raised a lot of discussion and the news has spread widely in the Internet. https://phys.org/news/2012-05-astronomers-ancient-egyptian-variable-star.html Space Exploration Wed, 16 May 2012 10:50:58 EDT news256384170 (PhysOrg.com) -- For almost two centuries, humans have looked up at a bright star called Epsilon Aurigae and watched with their own eyes as it seemed to disappear into the night sky, slowly fading before coming back to life again. Today, as another dimming of the system is underway, mysteries about the star persist. Though astronomers know that Epsilon Aurigae is eclipsed by a dark companion object every 27 years, the nature of both the star and object has remained unclear. https://phys.org/news/2010-01-centuries-old-star-mystery.html Astronomy Tue, 05 Jan 2010 16:28:46 EST news181930626