Astronomers from the University of Warsaw, Poland and elsewhere have detected a new classical Cepheid variable star. The newfound star, which received designation OGLE-GD-CEP-1884, has the longest pulsation period known among ...
When you look up in the night sky and find your way to the North Star, you are looking at Polaris. Not only is it the brightest star in the Ursa Minor constellation (the Little Dipper), but its position relative to the north ...
Astronomy
Sep 11, 2023
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189
RR Lyrae stars are old, pulsating stars that burn helium in their cores for fuel. Their progenitors were similar to our sun, but they are now much larger and brighter than our sun. We know of hundreds of thousands of RR Lyrae ...
Astronomy
Sep 7, 2023
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105
Researchers from the Yunnan Observatories of the Chinese Academy of Sciences (CAS) have conducted a detailed asteroseismic analysis on an extremely low-mass white dwarf (WD) that exhibits suspected pressure mode (p-mode) ...
Astronomy
Feb 24, 2023
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182
European astronomers have conducted X-ray and optical observations of a transitional millisecond pulsar known as PSR J1023+0038. Results of the observational campaign, published November 23 on arXiv.org, yield important insights ...
Astronomers from the Istanbul University in Turkey report the finding of a new short-period pulsating variable star during observations of the field of exoplanet host star XO-2. The newly detected object is most likely a ...
Ph.D. student Lv Chenglong from the Xinjiang Astronomical Observatory (XAO) of the Chinese Academy of Sciences (CAS) and his collaborators have revealed the evolutionary state of δ Scuti KIC 1573174 by constructing stellar ...
Astronomy
Jul 5, 2022
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10
In the last few years, astronomers have achieved an incredible milestone: the detection of gravitational waves, vanishingly weak ripples in the fabric of space and time emanating from some of the most cataclysmic events in ...
Astronomy
Jun 7, 2022
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271
An international team of astronomers reports the detection of a new millisecond pulsar (MSP) using the Green Bank Telescope (GBT). The newfound pulsar, designated PSR J1555−2908, turns out to be one of the so-called "black ...
Betelgeuse is normally one of the brightest, most recognizable stars of the winter sky, marking the left shoulder of the constellation Orion. But lately, it has been behaving strangely: an unprecedentedly large drop in its ...
Astronomy
Feb 8, 2021
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