# A survey of stars and compact sources in the Orion Nebula

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 Title: A survey of stars and compact sources in the Orion Nebula Wong, Shui Kwan O'Dell, C. Robert Master of Science thesis Four monochromatic (H$\alpha$, (N II), (O III) and 5500 A continuum) mosaics of the inner region of the Orion Nebula have been made by using data obtained with the Wide Field Planetary Camera 2 of the Hubble Space Telescope. These mosaics have a common area of $7\sp\prime52\sp{\prime\prime} \times 9\sp\prime25\sp{\prime\prime}$ which is the largest area of the Orion Nebula covered by the Hubble Space Telescope images in a single study. Making use of these Wide Field Planetary Camera 2 data, a survey of compact sources and stars down to V $\approx$ 22 has been done. A total of 489 sources that are not Herbig-Haro objects have been found. 145 of them can be classified as protoplanetary disks (proplyds). The proplyds have been classified into eight different forms. The forms which show strong evidence of interaction with a stellar force are concentrated near $\Theta\sp1$C Ori. Those forms that do not show such evidence are more widely spread. Wong, Shui Kwan. (1996) "A survey of stars and compact sources in the Orion Nebula." Masters Thesis, Rice University. http://hdl.handle.net/1911/17048. http://hdl.handle.net/1911/17048 1996