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A Low Metallicity Molecular Cloud In The Lower Galactic Halo
Audra K. Hernandez, Bart P. Wakker, Robert A. Benjamin +5
We find evidence for the impact of infalling, low-metallicity gas on the Galactic disk. This is based on FUV absorption line spectra, 21-cm emission line spectra, and FIR mapping t…
Forever alone? Testing single eccentric planetary systems for multiple companions
Robert A. Wittenmyer, Songhu Wang, Jonathan Horner +9
Determining the orbital eccentricity of an extrasolar planet is critically important for understanding the system's dynamical environment and history. However, eccentricity is ofte…
A progenitor binary and an ejected mass donor remnant of faint type Ia supernovae
S. Geier, T. R. Marsh, B. Wang +17
Type Ia supernovae (SN Ia) are the most important standard candles for measuring the expansion history of the universe. The thermonuclear explosion of a white dwarf can explain the…