This new data set contains 40 times more binary star systems than have been previously known and studied, Antonella Vallenari, an astronomer at the Padova Observatory and DPAC deputy chair, said in the news conference.Ä«rown described the new data release as "a supermarket of astronomical data" that the world's astronomers will be regularly visiting over the coming years and decades. "We can also detect some really interesting things like stars that have neutron stars or black holes as companions." "This is something that the astronomical community is very excited about because binary stars, for example, are the only way in which you can actually measure the mass of stars directly," Anthony Brown, an astronomer at the University of Leiden, the Netherlands, and the chair of the Gaia Data Processing and Analysis Consortium (DPAC) which prepared the data for the public release, told. The June 13 Gaia data release also contains the largest ever compiled data set of binary star systems in our galaxy, that is pairs of stars (or stars and blackholes) that orbit each other. And astroseismologists do the same, but for stars." Seismologists love earthquakes if they're not too violent, because these allow us to understand what is happening inside our planet. "Blinking stars do offer astronomers a very powerful tool to study their internal physics and chemistry," said Aerts. The stellar earthquakes were discovered in a subset of observations focusing on the distribution of variable stars in the Milky Way galaxy, that is stars whose brightness changes over time.
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