5 citations · 6 across the 4 of their papers we have counts for
5 papers
Pulsation-Initiated Mass Loss in Luminous Blue Variables: A Parameter Study
Andrew J. Onifer, Joyce A. Guzik
Luminous blue variables (LBVs) are characterized by semi-periodic episodes of enhanced mass-loss, or outburst. The cause of these outbursts has thus far been a mystery. One explana…
The Metallicity Dependence of Wolf-Rayet Mass Loss
A. J. Onifer, A. Heger, J. Abdallah
We produce models of early WN, WC, and WO stars as a function of metallicity Z using an analytic CAK-type approach. At log(Z / Z_sun) >= -2 both WN and WC stars have the approximat…
Population III Wolf-Rayet Stars in the CAK Regime
A. J. Onifer
Wolf-Rayet (WR) stars near solar metallicity are believed to be driven by radiation pressure on the UV spectral lines of metal ions. As the metallicity decreases so does the line o…
A Conceptual Analysis of Mass Loss and Frequency Redistribution in Wolf-Rayet Winds
A. J. Onifer, K. G. Gayley
To better understand Wolf-Rayet stars as progenitors of gamma-ray bursts, an understanding of the effect metallicity has on Wolf-Rayet mass loss is needed. Using simple analytic mo…
Wolf-Rayet Mass-Loss Limits Due to Frequency Redistribution
Andrew J. Onifer, Kenneth G. Gayley
The hypothesis that CAK-type line driving is responsible for the large observed Wolf-Rayet (W-R) mass-loss rates has been called into question in recent theoretical studies. The pu…