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Tracing High-Energy Radiation from T Tauri Stars Using Mid-Infrared Neon Emission from Disks
C. Espaillat, L. Ingleby, E. Furlan +8
High-energy radiation from T Tauri stars (TTS) influences the amount and longevity of gas in disks, thereby playing a crucial role in the creation of gas giant planets. Here we pro…
Lyman alpha dominance of the Classical T Tauri FUV Radiation Field
Rebecca Schindhelm, Kevin France, Gregory Herczeg +6
Far-ultraviolet (FUV) radiation plays an important role in determining chemical abundances in protoplanetary disks. HI Lyman alpha is suspected to be the dominant component of the…
From Protoplanetary Disks to Extrasolar Planets: Understanding the Life Cycle of Circumstellar Gas with Ultraviolet Spectroscopy
Kevin France, Matthew Beasley, David R. Ardila +20
Few scientific discoveries have captured the public imagination like the explosion of exoplanetary science during the past two decades. This work has fundamentally changed our pict…
A Hubble Space Telescope Survey of H2 Emission in the Circumstellar Environments of Young Stars
Kevin France, Rebecca Schindhelm, Gregory J. Herczeg +8
The formation timescale and final architecture of exoplanetary systems are closely related to the properties of the molecular disks from which they form. Observations of the spatia…
Fundamental aspects of episodic accretion chemistry explored with single-point models
Ruud Visser, Edwin A. Bergin
We explore a set of single-point chemical models to study the fundamental chemical aspects of episodic accretion in low-mass embedded protostars. Our goal is twofold: (1) to unders…
A Far-ultraviolet Atlas of Low-resolution Hubble Space Telescope Spectra of T Tauri Stars
Hao Yang, Gregory J. Herczeg, Jeffrey L. Linsky +6
We present a far-ultraviolet (FUV) spectral atlas consisting of spectra of 91 pre-main sequence stars. Most stars in this sample were observed with the Space Telescope Imaging Spec…