IIA Institutional Repository

Photo-ionization structures of Planetary Nebula IC 2003 with [WR] central star

Show simple item record

dc.contributor.author Khushbu, K
dc.contributor.author Muthumariappan, C
dc.date.accessioned 2024-07-24T05:30:28Z
dc.date.available 2024-07-24T05:30:28Z
dc.date.issued 2024-08-01
dc.identifier.citation Advances in Space Research, Vol. 74, No. 3, pp. 1366-1377 en_US
dc.identifier.issn 0273-1177
dc.identifier.uri http://hdl.handle.net/2248/8504
dc.description Restricted Access. en_US
dc.description.abstract We present ionization structures of IC 2003, a planetary nebula with [WR] central star, using a 1-D dusty photo-ionization code: ”CLOUDY 17.03”. The photo-ionization model is constrained by archival UV emission line fluxes, medium-resolution optical spectroscopy, IRAS 25 µm flux, absolute Hβ flux, and the mean angular size of the nearly spherical optical nebula. To constrain the carbon abundance and the effect of photo-electric heating in the ionized gas, we used UV emission lines. We considered an amorphous carbon dust grain with MRN and KMH size distributions to address the importance of photo-electric heating in the ionized nebula. We show that KMH grain size distribution with quantum dust heating reproduces the observations quite well. We construct the ionization structures of different elements at their different ionization stages in the nebula. We derive the physical properties of the planetary nebula and its chemical composition, as well as the parameters of its central star. The estimated nebular dust-to-gas mass ratio is 2:37 x 103 , and the enhanced photo-electric heating yielded by small dust grains is 9:4% of the total heating. We considered the H-poor model atmosphere for the central star; the effective temperature of the central star is 177 kK, the specific gravity log(g) is 6, and its luminosity (L*) is 6425 Lʘ. The derived central star parameters plotted on stellar evolutionary tracks correspond to a central star mass of 0.636 Mʘ and to a progenitor mass of 3.26 Mʘ. en_US
dc.language.iso en en_US
dc.publisher Elsevier B.V en_US
dc.relation.uri https://doi.org/10.1016/j.asr.2024.04.058
dc.rights © 2024 Elsevier B.V
dc.subject Planetary nebula: Evolution- AGB stars en_US
dc.subject [WR] stars en_US
dc.subject Interstellar medium en_US
dc.subject Dust en_US
dc.subject Radiative transfer: data analysis en_US
dc.subject CLOUDY- Abundances en_US
dc.subject Grain size distribution en_US
dc.title Photo-ionization structures of Planetary Nebula IC 2003 with [WR] central star en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Browse

My Account