Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003apj...586l..81s&link_type=abstract
The Astrophysical Journal, Volume 586, Issue 1, pp. L81-L85.
Astronomy and Astrophysics
Astronomy
20
Stars: Circumstellar Matter, Ism: Planetary Nebulae: General, Ism: Reflection Nebulae, Stars: Agb And Post-Agb, Stars: Individual: Alphanumeric: Iras 22036+5306, Stars: Mass Loss
Scientific paper
Using the Hubble Space Telescope's Wide Field Planetary Camera 2, we have discovered that the proto-planetary nebula (PPN) IRAS 22036+5306 (I22036) is an extended (5.7"×1.3") bipolar nebula. A dark, (partial) ringlike band defines the nebular waist region and probably results from a tilted, geometrically thick disk that obscures the central star. Knotty, linear structures are seen in each lobe. Very Large Array A configuration observations of OH maser emission in I22036 show the 1667 MHz emission features aligned in a roughly 1.8" long linear structure along the nebular axis. The source's far-infrared fluxes imply the presence of a massive [~5(D/2 kpc)2 Msolar], dusty, cool (Tdust~35-67 K), circumstellar envelope. Strong 3.08 and 11 μm absorption features in the Infrared Space Observatory spectra show the presence of icy silicate grains, which probably reside in the disk's shielded outer regions. A low-resolution optical spectrum indicates an F5 (or earlier) spectral type for the post-asymptotic giant branch (AGB) central star and shows Hα and Hβ emission lines. The elongated and highly structured lobes of I22036 are likely to have been produced as a result of the interaction of a collimated, fast wind (CFW) with the AGB progenitor's dense, slow wind. Highly collimated jetlike components in the CFW have probably operated at some time during the formation of this PPN.
Morris Marita
Sahai Raghvendra
Sanchez Contreras Carmen
Zijlstra Albert A.
No associations
LandOfFree
An Icy, Bipolar Proto-Planetary Nebula with Knotty Jets: IRAS 22036+5306 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with An Icy, Bipolar Proto-Planetary Nebula with Knotty Jets: IRAS 22036+5306, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An Icy, Bipolar Proto-Planetary Nebula with Knotty Jets: IRAS 22036+5306 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1881776