کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1784951 1023288 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Brightness temperature of synchronic exoplanets measured by infrared photometry from the ground: Method and perspective
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک اتمی و مولکولی و اپتیک
پیش نمایش صفحه اول مقاله
Brightness temperature of synchronic exoplanets measured by infrared photometry from the ground: Method and perspective
چکیده انگلیسی
We explore a method to measure the temperature at the surface of “hot Jupiter” type exoplanets by relative photometry in the infrared at around 10 μm in N spectral band. The method is described and validated by numerical simulations. Thermal radiation from an exoplanet and its parent star are analysed. Geometrical configurations of extra-solar planet rotating synchronously around parent star are explored for a feasibility study of the detection. A Jupiter size planet in orbit at 0.025 astronomical unit from Sun-like parent star should have a harmonic signature of up to 0.2% in amplitude with a period of the planets orbital duration. Such a signature is difficult to detect when making absolute measurements, but by differential methods of analyses, and using a radiative transfer model to take into account background sky contribution of the Earth's atmosphere, this relative accuracy can be reached. Some results of simulations of observation are also presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Infrared Physics & Technology - Volume 53, Issue 3, May 2010, Pages 186-192
نویسندگان
,