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Kolokium Daring KK & Prodi Astronomi
Selasa, 16 Juni 2020, pukul 13.30 â" 14.30 WIB
Interior Structure of Solar-like Star Ï Ceti
Pembicara: Farahhati Mumtahana, S.Si
Afiliasi:
Astronomi ITB
Pussainsa LAPAN
Kami mengundang seluruh peminat kolokium untuk dapat bergabung melalui tautan:
https://meet.google.com/fut-hsqm-nhp
Atas perhatian dan partisipasi aktifnya, kami sampaikan terima kasih.
Koordinator Kolokium,
Dr. Kiki Vierdayanti
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Abstract
Ï Ceti, a G8-V class star, has similar physical properties with our sun, even though most values are smaller and not as active as the sun. It has also been widely reviewed that this metal-poor population II star has terrestrial planetary systems, some of which are in the Habitable Zone. This paper aims to build the interior structure of Ï Ceti through modeling experiments with Modules for Experiments in Stellar Astrophysics (MESA) program. The work began with the determination of several fundamental parameters obtained from previous observations of both interferometry and spectroscopy on several references, and also from basic calculations which are then used as input to build the model in MESA. Structural modeling has been carried out in accordance with current star conditions, which is in the main sequence phase. Finally, the result various physical parameters so-called stellar interior structure such as mass, luminosity, pressure, temperature, radius, and age, as well as zonal division of nuclear core (R < 0.2
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