Investigation of the UV Radiation Process in NGC 2023

Details Investigation of the UV Radiation Process in NGC 2023 Investigation of the UV Radiation Process in NGC 2023

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004iaus..217..204l&link_type=abstract

International Astronomical Union Symposium no. 217, held 14-17 July, 2003 in Sydney, Australia. Edited by P.-A. Duc, J. Braine

Astronomy and Astrophysics

Astronomy

Scientific paper

We observed the H2 absorption lines in the far-UV band toward HD 37903, which is the central star of the reflection nebula NGC 2023, and ran the radiative-collisional equilibrium program CLOUDY to simulate the UV radiation process of NGC 2023. The input parameters are chosen to generate the same ionization and excitation distribution of atoms and molecules as observed, so that we can create a physical model for NGC 2023.

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