Abstract
High resolution observations of H..cap alpha.. 6563 A, (O III) 5007 A and (N II) 6583 A emission lines in the bipolar planetary nebula NGC 2346 are presented. Expansion velocities (V/sub exp/) of 8 +- 1 km s/sup -1/ in the :O III: line and 11 +- 1 km s/sup -1/ in the :N II: line are observed in the central region. An expansion velocity of 7.5 +- 1.0 km s/sup -1/ in the (O III) line is observed in a position 10 arcsec away from the centre, in the NE lobe of the nebula. From the widths of the H..cap alpha.. and (N II) lines, an ion temperature of T=10 650 +- 2950 K and a turbulent velocity V/sub T/ = 16 +- 2 km s/sup -1/ are derived. Using the detailed radial velocity mapping done by a previous author, a morphological model for the nebula is presented.
Citation Formats
Anandarao, B G, Banerjee, D P.K., Desai, J N, Jain, S K, and Mallik, D C.V.
Morphology of the bipolar planetary nebula NGC 2346 from emission line profile studies.
United Kingdom: N. p.,
1988.
Web.
Anandarao, B G, Banerjee, D P.K., Desai, J N, Jain, S K, & Mallik, D C.V.
Morphology of the bipolar planetary nebula NGC 2346 from emission line profile studies.
United Kingdom.
Anandarao, B G, Banerjee, D P.K., Desai, J N, Jain, S K, and Mallik, D C.V.
1988.
"Morphology of the bipolar planetary nebula NGC 2346 from emission line profile studies."
United Kingdom.
@misc{etde_6535451,
title = {Morphology of the bipolar planetary nebula NGC 2346 from emission line profile studies}
author = {Anandarao, B G, Banerjee, D P.K., Desai, J N, Jain, S K, and Mallik, D C.V.}
abstractNote = {High resolution observations of H..cap alpha.. 6563 A, (O III) 5007 A and (N II) 6583 A emission lines in the bipolar planetary nebula NGC 2346 are presented. Expansion velocities (V/sub exp/) of 8 +- 1 km s/sup -1/ in the :O III: line and 11 +- 1 km s/sup -1/ in the :N II: line are observed in the central region. An expansion velocity of 7.5 +- 1.0 km s/sup -1/ in the (O III) line is observed in a position 10 arcsec away from the centre, in the NE lobe of the nebula. From the widths of the H..cap alpha.. and (N II) lines, an ion temperature of T=10 650 +- 2950 K and a turbulent velocity V/sub T/ = 16 +- 2 km s/sup -1/ are derived. Using the detailed radial velocity mapping done by a previous author, a morphological model for the nebula is presented.}
journal = []
volume = {235:1}
journal type = {AC}
place = {United Kingdom}
year = {1988}
month = {Nov}
}
title = {Morphology of the bipolar planetary nebula NGC 2346 from emission line profile studies}
author = {Anandarao, B G, Banerjee, D P.K., Desai, J N, Jain, S K, and Mallik, D C.V.}
abstractNote = {High resolution observations of H..cap alpha.. 6563 A, (O III) 5007 A and (N II) 6583 A emission lines in the bipolar planetary nebula NGC 2346 are presented. Expansion velocities (V/sub exp/) of 8 +- 1 km s/sup -1/ in the :O III: line and 11 +- 1 km s/sup -1/ in the :N II: line are observed in the central region. An expansion velocity of 7.5 +- 1.0 km s/sup -1/ in the (O III) line is observed in a position 10 arcsec away from the centre, in the NE lobe of the nebula. From the widths of the H..cap alpha.. and (N II) lines, an ion temperature of T=10 650 +- 2950 K and a turbulent velocity V/sub T/ = 16 +- 2 km s/sup -1/ are derived. Using the detailed radial velocity mapping done by a previous author, a morphological model for the nebula is presented.}
journal = []
volume = {235:1}
journal type = {AC}
place = {United Kingdom}
year = {1988}
month = {Nov}
}