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The Post-Outburst Spectrum of L1415-IRS
Lynne A. Hillenbrand, Thomas P. Greene, Evan R. Portnoi +1
We present near-infrared spectroscopic observations of L1415-IRS, a Class I type young stellar object that underwent a factor of 30 photometric outburst in the early 2000s. Ours…
The Near Stellar Environment of Class 0 Protostars: A First Look with Near-Infrared Spectroscopy
E. Laos, T. P. Greene, J. R. Najita +1
We present near-infrared K-band spectra for a sample of 7 Class 0 protostars in the Perseus and Orion star-forming regions. We detect Br gamma, CO overtone, and H2 emission, featur…
Detection of Photospheric Features in the Near-Infrared Spectrum of a Class 0 Protostar
Thomas P. Greene, Michael A. Gully-Santiago, Mary Barsony
We present a near-infrared -band Keck spectrum of S68N, a Class 0 protostar in the Serpens molecular cloud. The spectrum shows a very red continuum, CO absorptio…
Near-IR Spectroscopic Monitoring of Class I Protostars: Variability of Accretion and Wind Indicators
MIchael Connelley, Thomas Greene
We present the results of a program that monitored the near-IR spectroscopic variability of a sample of 19 embedded protostars. Spectra were taken on time intervals from 2 days to…
Water Clouds in Y Dwarfs and Exoplanets
Caroline V. Morley, Mark S. Marley, Jonathan J. Fortney +4
The formation of clouds affects brown dwarf and planetary atmospheres of nearly all effective temperatures. Iron and silicate condense in L dwarf atmospheres and dissipate at the L…
Magnetic Braking Formulation for Sun-Like Stars: Dependence on Dipole Field Strength and Rotation Rate
Sean P. Matt, Keith B. MacGregor, Marc H. Pinsonneault +1
We use two-dimensional axisymmetric magnetohydrodynamic simulations to compute steady-state solutions for solar-like stellar winds from rotating stars with dipolar magnetic fields.…