FUor masses inferred from Keplerian line broadening in H-band spectra match the solar neighborhood IMF, indicating a universal eruptive phase during star formation.
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Radial velocity data reveal a 310-day orbital period in NaSt1 with opposing phases in two groups of emission lines, supporting its nature as a post-mass-transfer massive binary system.
A public high-resolution K-band spectral atlas of 81 massive stars from O2 to B1 types is released with telluric-corrected spectra.
High-resolution NIR spectra of 15 FUors reveal double-peaked Keplerian profiles in five K-band targets that fit disk models, J-K band correlations without clear wavelength linewidth trends, and M-band CO lines of distinct origin likely due to blending or winds.
Spectroscopic data confirm a 6200 K DA white dwarf of 0.63 solar mass with an M8 inner companion and possible M6+M9 outer binary, suggesting the system is quadruple.
citing papers explorer
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The FUor Mass Distribution Matches the Solar Neighborhood IMF: Evidence for a Universal Eruptive Phase
FUor masses inferred from Keplerian line broadening in H-band spectra match the solar neighborhood IMF, indicating a universal eruptive phase during star formation.
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Radial Velocity Evidence for a Post-Mass-Transfer Massive Binary System: NaSt1
Radial velocity data reveal a 310-day orbital period in NaSt1 with opposing phases in two groups of emission lines, supporting its nature as a post-mass-transfer massive binary system.
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A high-resolution K-band spectral atlas of massive stars
A public high-resolution K-band spectral atlas of 81 massive stars from O2 to B1 types is released with telluric-corrected spectra.
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Probing the kinematics of FU Orionis objects through high-resolution near-infrared spectroscopy
High-resolution NIR spectra of 15 FUors reveal double-peaked Keplerian profiles in five K-band targets that fit disk models, J-K band correlations without clear wavelength linewidth trends, and M-band CO lines of distinct origin likely due to blending or winds.
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Spectroscopic Characterization of WD J000801.25-350450 and its Two Co-Moving Companions
Spectroscopic data confirm a 6200 K DA white dwarf of 0.63 solar mass with an M8 inner companion and possible M6+M9 outer binary, suggesting the system is quadruple.