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Exoplanet discovery has increased rapidly in past 20 years. Until April 22nd, 2014, <br /> <br /> <br /> <br /> <br /> there was 1,783 exoplanets have been confirmed (exoplanet.eu). Of the 1,783 <br /> <br /> <br /> <br /> <br />...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/18841 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Exoplanet discovery has increased rapidly in past 20 years. Until April 22nd, 2014, <br />
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there was 1,783 exoplanets have been confirmed (exoplanet.eu). Of the 1,783 <br />
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exoplanets there are only less than 10 terrestrial exoplanet. This is important <br />
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discovery for Astrobiology, the search for possibility of life in other planets. One <br />
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way to search for signs of life is through biomarker observation in the exoplanet’s <br />
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atmosphere. <br />
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Until now, the Earth is the only planet that can be used as an example to search <br />
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for life on other planets. To get a realistic model of Earth’s atmosphere, we have <br />
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to study the radiative-convective and photochemical process. After the model of <br />
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the Earth's atmosphere is made succesfully, the next step is to modelling the <br />
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exoplanet’s atmosphere. In this final project, modelling is done by using a planet <br />
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that has the same characteristics as the Earth, but it has a solar-like parent star. All <br />
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data of pressure, temperature, and molecule parameter for each atmosphere’s <br />
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altitude was obtained from a program created by Kasting et al. Then all data <br />
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entered into the Line By Line Radiative Transfer Model (LBLRTM) program to <br />
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be processed as a spectrum. <br />
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Information obtained from that modelling shows that the profile of the atmosphere <br />
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is strongly influenced by the flux of the parent star and the abundance of the <br />
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molecules in the atmosphere. While the spectrum data can detect absorption of <br />
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several molecules that can be used as biomarkers. |
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