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1-D dusty photo-ionization models of WR planetary nebulae NGC 2452 and IC 2003

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dc.contributor.author Muthumariappan, C
dc.contributor.author Amrutha, B. M
dc.contributor.author Selvakumar, G
dc.date.accessioned 2023-02-03T08:28:08Z
dc.date.available 2023-02-03T08:28:08Z
dc.date.issued 2023-01-01
dc.identifier.citation Advances in Space Research, Vol. 71, No. 1, pp. 1089-1097 en_US
dc.identifier.issn 1879-1948
dc.identifier.uri http://hdl.handle.net/2248/8145
dc.description Restricted Access en_US
dc.description.abstract We report dusty photo-ionization models for two Planetary Nebulae NGC 2452 and IC 2003, which have [WR] type central stars, using 1D photo-ionization code Cloudy17.02. We used the medium resolution optical spectra and archival IRAS photometry to con- strain our models. The physical size of the ionized nebula derived using accurate distance measurements and absolute Hb flux available in the literature were used as additional constrains. We examine the importance of photo-electric heating and found that models with and without considering photo-electric heating do not make significant difference for both PNe for the MRN grain size distribution consid- ered in this study. We derive the nebular elemental abundances of these PNe by the empirical method as well as by making dusty photo- ionization models. The values of N/O ratios for both PNe obtained from our models are lower than their respective values arrived using empirical methods. The central stars are assumed to be black bodies and the photospheric temperatures derived respectively for NGC 2452 and IC 2003 from their best fit models are 182 kK and 155 kK and their respective luminosities are 630L and 1015L . We propose that both the PNe were resulted from low-mass progenitors of mass 62.8 M⊙. 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.2022.09.041
dc.rights © 2022 COSPAR
dc.subject (ISM:) planetary nebulae en_US
dc.subject General- ISM en_US
dc.subject Abundances- planetary nebulae- dust en_US
dc.subject Extinction en_US
dc.title 1-D dusty photo-ionization models of WR planetary nebulae NGC 2452 and IC 2003 en_US
dc.type Article en_US

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