At a certain point, after 5 miliardi di anni circa, our Sun will release nuclear fuel and diverge a giant red, blowing up a large supply of food from our planet (and gli altri pianeti). An event of the all normal but not particularly frequent: for the first time it is possible to see it “in direct” as raccount an article his Nature.
Naturally, gli astronomi non stanno “sell” the event in the way that we guard a TV series. If it’s about interpreting and data that arrived from the telescopes pointed to their star ZTF SLRN-2020, that if it was 10,000 years old, it looks like noi. Gli scienziati stanno osservando gli effetti che l’inghiottimento del pianeta ha avuto sulla stella in dati a livello di pixel.
The first survey rose around three years ago, when Kishalay De (MIT) has identified a star that is illuminated by more than a century of volte per un paio di settimane. “Sembrava circondata da un mucho di gas freddo”, has said De. If quindi passati agli infrarossi, ideale technique to individualize the zone fredde.
Gli sforzi per raccogliere dati hanno poi permesso a De di raccogliere three prove fundamental: Freddo gas shot during the explosion, the powder format around the explosion that emits a bagliore infrarosso and a schiarita infrarossa alcuni mesi prima dell’explosione. Non poteva essere la fusione tras dues stelle, perché la luminosità no era sufficente, ma alora cosa stava inghiottendo ZTF SLRN-2020? L’oggetto più probabile was a planet, a gassy giant delle dimensionsi di Giove.
Picture of the cover: studioaccendo
