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Date: 2014
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/287206
Description: Recent observations reveal that the central star of the planetary nebula Abell 48 exhibits spectral features similar tomassive nitrogen-sequenceWolf-Rayet stars. This raises a pertinent question, whet... More
Reviewed:Reviewed
Date: 2014
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/307448
Description: We have conducted a detailed multi-wavelength study of the peculiar nebula Abell 48 and its central star. We classify the nucleus as a helium-rich, hydrogen-deficient star of type [WN4-5]. The evidenc... More
Reviewed:Reviewed
Date: 2013
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/283845
Description: We use photoionization modeling to assess the binary nature of the central stars of NGC 2392 and NGC 6026. If they are close binaries, they are potential Type Ia supernovae (SNe Ia) progenitors if the... More
Reviewed:Reviewed
Date: 2013
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/269962
Description: The planetary nebula SuWt 2 (PN G311.0+02.4) is an unusual object with a prominent, inclined central emission ellipse and faint bipolar extensions. It has two A-type stars in a proven binary system at... More
Reviewed:Reviewed
Date: 2012
Language: eng
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.14/200164
Description: The ionizing star of the planetary nebula NGC 2392 is too cool to explain the high excitation of the nebular shell, arid an additional ionizing source is necessary. We use photoionization modeling to ... More
Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/160607
Description: The existence of large-amplitude electron-acoustic solitary structures is investigated in an unmagnetized and collisionless two-temperature dusty plasma penetrated by an electron beam. A nonlinear pse... More
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Date: 2011
Language: eng
Resource Type: conference paper abstract
Identifier: http://hdl.handle.net/1959.14/160604
Description: The Sagdeev pseudopotential method is used to investigate the occurrence and the dynamics of fully nonlinear electrostatic solitary structures in a plasma containing suprathermal hot electrons, in the... More
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