4 papers
Stellar Flares in the TESS Light Curves of Planet-hosting M dwarfs
Benjamin K. Capistrant, Jason Dittmann
M dwarfs are magnetically active stars that frequently produce flares, which have implications for both stellar evolution and exoplanet studies. Flare occurrence rates and activity…
An Hα Transit of HD 189733b to Assess Stellar Activity Across the Transit Chord Close to JWST Observations
Kingsley E. Ehrich, Jason A. Dittmann, Samuel P. Halverson +1
Transmission spectroscopy allows us to detect molecules in planetary atmospheres, but is subject to contamination from inhomogeneities on the stellar surface. Quantifying the exten…
The Spin-orbit alignment of two short period eclipsing binary systems
Tony Wells, B. C. Addison, R. A. Wittenmyer +8
We present a joint analysis of TESS photometry and radial velocity measurements obtained from the Minerva-Australis facility for two short-period eclipsing binaries, TIC 48227288 a…
The Discovery of 25 um Interstellar Methanol
Sarah L. Nickerson, Naseem Rangwala, Keeyoon Sung +15
We present the first astrophysical detection of methanol (CH3OH) in the torsional band near 25 um. Using high resolution mid-infrared (MIR) spectroscopy, we identified over seventy…