SOFIA Highlights: Star formation
By Cristian Guevara and Joan Schmelz
Paper: [C II] 158 µm self-absorption and optical depth effects
Guevara, C., et al., 2020/04, A&A, 636A, A16.
Photodissociation Regions (PDRs) are zones of the interstellar medium in which Far-UV photons dominate the thermal balance, chemistry, structure, as well as the distribution of the gas and dust. The incident FUV field photodissociates molecules, photoionizes atoms and molecules, and heats the gas and dust.
By Andrew Barr, Alexander Tielens, and Joan Schmelz
Paper: High-resolution Infrared Spectroscopy of Hot Molecular Gas in AFGL 2591 and AFGL 2136: Accretion in the Inner Regions of Disks around Massive Young Stellar Objects
Barr, Andrew G., et al., 2020/09, ApJ, 900, 104.
By Maggie Thompson, Ralph Shuping, and Joan Schmelz
Paper: Studying the Evolution of Warm Dust Encircling BD +20 307 Using SOFIA
Thompson, Maggie A., et al., 2019, ApJ, 875, 45.
Recent observations from SOFIA of a binary star system designated BD +20 307 indicate that there may have been a catastrophic collision between two planets within the last 10 years.
New data from NASA’s Stratospheric Observatory for Infrared Astronomy, SOFIA, reveal a three-dimensional (3-D) view of the Orion Nebula – Earth’s closest star-formation nursery – and a powerful stellar wind. Researchers can rotate, zoom in, and even dive through this data cube to better understand how stars are forming.