Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...335.1029s&link_type=abstract
Astronomy and Astrophysics, v.335, p.1029-1039 (1998)
Astronomy and Astrophysics
Astrophysics
11
Stars: Individual: Wr 124, Ism: Individual Objects: M 1-67, Stars: Mass-Loss, Stars: Wolf-Rayet, Ism: Bubbles, Ism: Jets And Outflows
Scientific paper
Ground based high resolution coronographic images of the inner M 1-67 nebula ( =~ 40'' x 60'') around the Wolf Rayet WR 124 have been obtained with the Johns Hopkins Adaptive Optic Coronograph at the Swope 40'' telescope, Las Campanas, in the light of Hα + [NII]. The inner M 1-67 nebula appears very clumpy and remarkably axisymmetric. In addition, we present new high signal-to-noise long slit spectroscopic data, with full spatial coverage of the nebula ( =~ 90'' x 75''), which have been used the save derive its radial velocity map (from the [NII] 6583 Angstroms line profile). The radial velocity data reveal the presence of two different motions in the enviroment of WR 124: a spherical hollow shell, 46'' in radius, expanding with a velocity of 46 km s(-1) , and a newly discovered bipolar outflow, with a velocity of 88 km s(-1) . Their dynamical ages are estimated to be 2 x 10(4) yrs and 1.2 x 10(4) yrs respectively, and their overall N enriched composition seem to indicate that they formed during the post-main sequence evolution of WR 124. This scenario is consistent with two subsequent outbursts, possibly occurred during a previous LBV phase. Based on observations obtained at the European Southern Observatory, La Silla
Clampin Mark
Nota Antonella
Pasquali Anna
Sirianni Marco
No associations
LandOfFree
A bipolar outflow in the M 1-67 nebula around the Wolf-Rayet star WR 124 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 A bipolar outflow in the M 1-67 nebula around the Wolf-Rayet star WR 124, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A bipolar outflow in the M 1-67 nebula around the Wolf-Rayet star WR 124 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1341132