EKZOSAYYORALAR KASHFIYOTI, UNING TRANZIT VA RADIAL PARAMETIRLARINI ANIQLASH
Abstract
Ekzosayyoralar bu boshqa yulduzlar atrofida aylanuvchi sayyoralardir, “ekzo” lotincha “tashqari” degan ma’noni beradi Birinchi ekzosayyora 1995 yilda ochildi. Kashfiyot Dopler chizig‘ining siljishini 13 m/sek aniqlikda o‘lchay oluvchi spektrometr yordamida amalga oshirildi. 1988-yilda qator astronomlar ekzosayyoralarni kashf qilinganligini e’lon qilishgan[1]. Lekin ular kuzatish aniqligi yetarli boʻlmaganligini ham e’trof etishgan. Bundan 15 yil oʻtkandan keyin kashf qilingan sayyoralar soni bir necha 10 tadan oshgandan keyin kashfiyot oʻz tasdigʻini topdi. 1989-yildagi kashfiyotlar karliklarmi yoki ekzosayyoralarmi degan savolga toʻliq va aniq javob bera olmagan. [1,2].
References
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3. https://www.schoolsobservatory.org/learn/astro/exoplanets/history
4. A. Wolszczan & D. Frail "A planetary system around the millisecond pulsar PSR1257 + 12" Nature, Volume 355, Issue 6356, pp. 145-147 (1992).
5. https://spacenews.com/superwasp-finds-a-strongly-irradiated-transiting-gas-giant-exoplanet.
6. G.Ottoni at all “CORALIE radial-velocity search for companions around evolved stars (CASCADES)” A&A Volume 657, January 2022, A87 20.
8. Joshua Thompson “Exoplanet Transit Detection with Terrestrial Amateur Equipment” December, 2010
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