Friday, May 8, 2015

We have three new planetary systems – ecological portal


All three newly discovered planets are located near the aging stars – red giant which have been designated as BD + 49 828 216 536 HD and HD 95,127th They are characterized by considerable size – are 8 to 20 times greater than the radius Sun, and the weight within the range of 1,2 to 1,5 weight of our sun.

Scientists pay special attention to the planetary system with the BD + 49 828, which is an object very similar to the one in our solar system, Jupiter. The newly discovered planet BD + 49 828 b is just slightly more massive and circulates only slightly less extensive orbit. It orbits its star every 2,590 days or every 7.1 years and belongs to the most distant of the known extrasolar planets. At that distance that cold planet will not be susceptible to the direct threat from its star. Such planets are a true rarity. Most of today known will be absorbed by its star furthest to the red giant stage. You could say that the planet BD + 49 828 b survive its star. – Inform scientists.

The observations were carried out under the project pensylwańsko-Toruń search for extrasolar planets (PSTN) using the Hobby-Eberly Telescope (HET) in Texas with a diameter of 9.2 meters. The project has been going on for 10 years and was discovered in the course of already 17 planetary systems, where there is a total of 20 planets.

The team of explorers includes: prof. Andrzej Niedzielski (NCU), prof. Aleksander Wolszczan (Pennsylvania State University), Dr. Grzegorz Nowak (IAC Tenerife and NCU), Dr Monika Adamow (U. Texas and NCU), Dr. Kacper Kowalik (U. Illinois), Dr Gratian Maciejewski (NCU) and a PhD from the NCU: mgr Beata Deka-Szymankiewicz and Mr. Michalina Adamczyk.

Source: https://www.umk.pl/wiadomosci/?id=20150507131956

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