Optical spectra of radio planetary nebulae in the Large Magellanic Cloud

J. L. Payne; M. D. Filipović; W. C. Millar; E. J. Crawford; A. Y. De Horta; F. H. Stootman; D. Urošević

doi:10.2298/SAJ0877053P

Optical spectra of radio planetary nebulae in the Large Magellanic Cloud

J. L. Payne, M. D. Filipović, W. C. Millar, E. J. Crawford, A. Y. De Horta, F. H. Stootman, D. Urošević

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Abstract

We present 11 spectra from 12 candidate radio sources co-identified with known planetary nebulae (PNe) in the Large Magellanic Cloud (LMC). Originally found in Australia Telescope Compact Array (ATCA) LMC surveys at 1.4, 4.8 and 8.64 GHz and confirmed by new high resolution ATCA images at 6 and 3 cm (4″/2″), these complement data recently presented for candidate radio PNe in the Small Magellanic Cloud (SMC). Their spectra were obtained using the Radcliffe 1.9-meter telescope in Sutherland (South Africa). All of the optical PNe and radio candidates are within 2″ and may represent a population of selected radio bright sample only. Nebular ionized masses of these objects are estimated to be as high as 1.8 M⊙, supporting the idea that massive PNe progenitor central stars lose much of their mass in the asymptotic giant branch (AGB) phase or prior. We also identify a sub-population (33%) of radio PNe candidates with prominent ionized iron emission lines.

Original language	English
Pages (from-to)	53-59
Number of pages	7
Journal	Serbian Astronomical Journal
Volume	177
DOIs	https://doi.org/10.2298/SAJ0877053P
Publication status	Published - 2008

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@article{f5d1ddfaf61d4206bb11118510594466,

title = "Optical spectra of radio planetary nebulae in the Large Magellanic Cloud",

abstract = "We present 11 spectra from 12 candidate radio sources co-identified with known planetary nebulae (PNe) in the Large Magellanic Cloud (LMC). Originally found in Australia Telescope Compact Array (ATCA) LMC surveys at 1.4, 4.8 and 8.64 GHz and confirmed by new high resolution ATCA images at 6 and 3 cm (4″/2″), these complement data recently presented for candidate radio PNe in the Small Magellanic Cloud (SMC). Their spectra were obtained using the Radcliffe 1.9-meter telescope in Sutherland (South Africa). All of the optical PNe and radio candidates are within 2″ and may represent a population of selected radio bright sample only. Nebular ionized masses of these objects are estimated to be as high as 1.8 M⊙, supporting the idea that massive PNe progenitor central stars lose much of their mass in the asymptotic giant branch (AGB) phase or prior. We also identify a sub-population (33%) of radio PNe candidates with prominent ionized iron emission lines.",

author = "Payne, {J. L.} and Filipovi{\'c}, {M. D.} and Millar, {W. C.} and Crawford, {E. J.} and {De Horta}, {A. Y.} and Stootman, {F. H.} and D. Uro{\v s}evi{\'c}",

year = "2008",

doi = "10.2298/SAJ0877053P",

language = "English",

volume = "177",

pages = "53--59",

journal = "Serbian Astronomical Journal",

publisher = "Astronomical Observatory of Belgrade",

}

TY - JOUR

T1 - Optical spectra of radio planetary nebulae in the Large Magellanic Cloud

AU - Payne, J. L.

AU - Filipović, M. D.

AU - Millar, W. C.

AU - Crawford, E. J.

AU - De Horta, A. Y.

AU - Stootman, F. H.

AU - Urošević, D.

PY - 2008

Y1 - 2008

N2 - We present 11 spectra from 12 candidate radio sources co-identified with known planetary nebulae (PNe) in the Large Magellanic Cloud (LMC). Originally found in Australia Telescope Compact Array (ATCA) LMC surveys at 1.4, 4.8 and 8.64 GHz and confirmed by new high resolution ATCA images at 6 and 3 cm (4″/2″), these complement data recently presented for candidate radio PNe in the Small Magellanic Cloud (SMC). Their spectra were obtained using the Radcliffe 1.9-meter telescope in Sutherland (South Africa). All of the optical PNe and radio candidates are within 2″ and may represent a population of selected radio bright sample only. Nebular ionized masses of these objects are estimated to be as high as 1.8 M⊙, supporting the idea that massive PNe progenitor central stars lose much of their mass in the asymptotic giant branch (AGB) phase or prior. We also identify a sub-population (33%) of radio PNe candidates with prominent ionized iron emission lines.

AB - We present 11 spectra from 12 candidate radio sources co-identified with known planetary nebulae (PNe) in the Large Magellanic Cloud (LMC). Originally found in Australia Telescope Compact Array (ATCA) LMC surveys at 1.4, 4.8 and 8.64 GHz and confirmed by new high resolution ATCA images at 6 and 3 cm (4″/2″), these complement data recently presented for candidate radio PNe in the Small Magellanic Cloud (SMC). Their spectra were obtained using the Radcliffe 1.9-meter telescope in Sutherland (South Africa). All of the optical PNe and radio candidates are within 2″ and may represent a population of selected radio bright sample only. Nebular ionized masses of these objects are estimated to be as high as 1.8 M⊙, supporting the idea that massive PNe progenitor central stars lose much of their mass in the asymptotic giant branch (AGB) phase or prior. We also identify a sub-population (33%) of radio PNe candidates with prominent ionized iron emission lines.

UR - http://handle.uws.edu.au:8081/1959.7/554761

U2 - 10.2298/SAJ0877053P

DO - 10.2298/SAJ0877053P

M3 - Article

VL - 177

SP - 53

EP - 59

JO - Serbian Astronomical Journal

JF - Serbian Astronomical Journal

ER -

Optical spectra of radio planetary nebulae in the Large Magellanic Cloud

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