Astronomlar təxminən 175 işıq ili uzaqlıqdakı günəşəbənzər ulduzun ətrafında fırlanan iki yeni ekzoplanet kəşf ediblər.
Şamaxı Astrofizika Rəsədxanasından verilən xəbərə görə, HIP 104045 b və HIP 104045 c olaraq qeyd olunan planetlər müvafiq olaraq Yupiterin analoqu və super-Neptun kimi təsnif edilir. Bu yeni kəşf haqqında məqalə arxiv serverinə yerləşdirilib.
San-Paulo Universitetinin astronomlar qrupu Avropa Cənub Rəsədxanasının (ESO) 3,6 metrlik teleskopunda yüksək dəqiqlikli (HARPS) spektroqrafından istifadə edərək günəşəbənzər HIP 104045 ulduzunu müşahidə ediblər. Solar Twin Planet Search (STPS) proqramı tərəfindən aparılan müşahidələr iki nəhəng planetin kəşfinə səbəb olub.
HIP 104045 b-nin kütləsi təxminən 0,5 Yupiter kütləsidir. Planetin ulduz ətrafında dolanma dövrü 2315 gün, ulduzdan məsafəsi 3,46 aastronomik vahiddir. Digər planetin kütləsi isə təxminən 0.136 Yupiterin kütləsinə bərəbərdir, planetin orbital dolanma dövrü isə 316 gündür.
Bu super-Neptun tipli ekzoplanetdir və ulduzdan ~0,92 astronomik vahid məsafədə yerləşir.
Qeyd edək ki, HIP 104045 ulduzunun kimyəvi tərkibi də Günəşinkinə çox yaxındır. Belə ki, ulduzun tərkibində odadavamlı və uçucu elementlərin miqdarı Günəşin digər əkizlərindən daha azdır. Məhz tərkibinə görə alimlər ilkin olaraq ulduzun planet sisteminin Günəş sisteminə bənzədiyini – daxili hissədə bərk səthi olan planetlər, xarici oblastda isə qaz nəhənglərinin yerləşdiyini düşünürdülər. Nəticə olaraq, ulduzun tərkibində odadavamlı elementlərin miqdarının cüzi artıqlığını, ulduzun hansısa qayalı planetin materiallarını udması ehtimalı ilə əlaqələndiriblər.
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This is a fascinating discovery by astronomers to have found two new exoplanets around a sun-like star that is approximately 175 light-years away. It’s interesting to note that these planets have been classified as a Jupiter analog and a super-Neptunian planet. Further study of these exoplanets can help us understand more about the formation and evolution of planetary systems.
I wonder what kind of technology and methods were used by astronomers to detect these exoplanets and classify them accurately? Is the discovery of these exoplanets a significant breakthrough in the field of astronomy?
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