Echelle observations of the high speed motions in the extreme bi-polar nebula He2-111 (PK 315 - 0.1 deg)

Details Echelle observations of the high speed motions in the extreme bi-polar nebula He2-111 (PK 315 - 0.1 deg) Echelle observations of the high speed motions in the extreme bi-polar nebula He2-111 (PK 315 - 0.1 deg)

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...223..277m&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 223, no. 1-2, Oct. 1989, p. 277-286.

Astronomy and Astrophysics

Astrophysics

27

Astronomical Spectroscopy, Echelle Gratings, Nebulae, Bow Waves, H Alpha Line, Photoionization, Radial Velocity, Stellar Envelopes, Stellar Mass Ejection

Scientific paper

The H-alpha and forbidden NII line profiles of the bright core and faint high-speed outer lobes of the bipolar nebula He2-111 were observed with the Manchester echelle spectrometer. To explain the observed velocity features, a model is proposed where stellar ejectae from a nova-like eruption collide with small ambient globules to produce convex, radiative bow shocks. An alternative model is also considered which is based on reverse bow shocks caused by the collision of axial jets with the surrounding medium.

Affiliated with

Also associated with

No associations

Rating

Echelle observations of the high speed motions in the extreme bi-polar nebula He2-111 (PK 315 - 0.1 deg) 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 Echelle observations of the high speed motions in the extreme bi-polar nebula He2-111 (PK 315 - 0.1 deg), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Echelle observations of the high speed motions in the extreme bi-polar nebula He2-111 (PK 315 - 0.1 deg) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1526998