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Helium at white dwarf photospheric conditions: preliminary laboratory results
Marc Schaeuble, Ross E. Falcon, Thomas A. Gomez +3
We present preliminary results of an experimental study exploring helium at photospheric conditions of white dwarf stars. These data were collected at Sandia National Laboratories'…
Modeling the Spectra of Dense Hydrogen Plasmas: Beyond Occupation Probability
T. A. Gomez, M. H. Montgomery, T. Nagayama +2
Accurately measuring the masses of white dwarf stars is crucial in many astrophysical contexts (e.g., asteroseismology and cosmochronology). These masses are most commonly determin…
Reaching Higher Densities for Laboratory White Dwarf Photospheres to Measure Spectroscopic Line Profiles
Ross E. Falcon, J. E. Bailey, T. A. Gomez +5
As part of our laboratory investigation of the theoretical line profiles used in white dwarf atmosphere models, we extend the electron-density () range measured by our e…
Which Hydrogen Balmer Lines Are Most Reliable for Determining White Dwarf Atmospheric Parameters?
Ross E. Falcon, G. A. Rochau, J. E. Bailey +4
Our preliminary results from laboratory experiments studying white dwarf (WD) photospheres show a systematic difference between experimental plasma conditions inferred from measure…