The "Papillon" nebula: a compact HII blob in the LMC resolved by HST

Citation
M. Heydari-malayeri et al., The "Papillon" nebula: a compact HII blob in the LMC resolved by HST, ASTRON ASTR, 352(2), 1999, pp. 665-669
Citations number
35
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY AND ASTROPHYSICS
ISSN journal
00046361 → ACNP
Volume
352
Issue
2
Year of publication
1999
Pages
665 - 669
Database
ISI
SICI code
0004-6361(199912)352:2<665:T"NACH>2.0.ZU;2-C
Abstract
We present high spatial resolution HST imaging of the LMC compact H II regi on N159-5. This high excitation blob is revealed to be a "papillon" or butt erfly-shaped ionized nebula with the "wings" separated by similar to 2 ".3 (0.6 pc). Two subarcsecond features resembling a "smoke ring" and a "globul e" are detected in the wings, the origin of which is briefly discussed. N15 9-5 may represent a new type of H II region in the Magellanic Clouds overlo oked so far because of insufficient spatial resolution. Our images also sho w a strikingly turbulent medium around the Papillon in the giant HII region N 159, which manifests itself by a large number of subarcsecond filaments, arcs, ridges, and fronts carved in the ionized gas by the stellar winds fr om massive stars in the N 159 complex.