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Study of the Orion Bright Bar using the Hubble Space Telescope and a recalibration of three HST filters

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Title: Study of the Orion Bright Bar using the Hubble Space Telescope and a recalibration of three HST filters
Author: Hasan, Abbas Syed
Advisor: O'Dell, C. Robert
Degree: Master of Science thesis
Abstract: Using Images of the Orion Nebula from the Hubble Space Telescope and calibrated ground based images, we were able to recalibrate three narrow band HST filters, namely F656N, F658N and F502N. The results show that the first two filter profiles had kept the same shape as that published in the Wide Field Planetary Camera 1 (WFPC1) handbook but had decreased in overall transparency by about 40% each. Results for the F502N filter indicate that the profile had remained unchanged but had shifted towards the lower wavelength side by 2.9A. Using the new profiles, we investigated the 'wrong-sided' brightness phenomenon displayed in the SW portion of the Orion Bright Bar. It was concluded that the anomaly is not an artifact of filter contamination but is real and the result of a geometric effect. In short, it is due to a 'bump' in the nebula.
Citation: Hasan, Abbas Syed. (1995) "Study of the Orion Bright Bar using the Hubble Space Telescope and a recalibration of three HST filters." Masters Thesis, Rice University. http://hdl.handle.net/1911/13958.
URI: http://hdl.handle.net/1911/13958
Date: 1995

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