A proplyd, short for ionized protoplanetary disk, is an externally illuminated photoevaporating protoplanetary disk around a young star. Nearly 180 proplyds have been discovered in the Orion Nebula. I
Proplyds in the Orion Nebula
Illustration of the dynamics of a proplyd, including an astrophysical jet
Dusty proplyds pointing to HD 17505 in Westerhout 5 as seen by the Spitzer Space Telescope
View of several proplyds within the Orion Nebula taken by the Hubble Space Telescope
The Flame Nebula is an emission nebula in the constellation Orion. Alternatively, it is designated as NGC 2024 and Sh2-277. It is about 1350 light-years away. At that distance, the Flame Nebula lies w
Proplyd
…B-type star, 42 Orionis is responsible for the photoevaporation. In addition, 4 clear and 4 candidate proplyds were discovered in the very young region NGC 2024, two of which have been photoevaporated by a B star. The NGC 2024 proplyds are significant because they imply that external photoevaporation of…
The Flame Nebula in visible light (broadband). The star above it is Alnitak. The nebulae to the upper left are IC 431 and IC 432.
The center of the Flame Nebula seen by JWST NIRCam, revealing proplyds in new detail and revealing two new candidates.
Optical image in B, V and R filters, from La Silla Observatory
Infrared image, from 2MASS