A5050036301- Astronomy and Astrophysical Research
- Stellar, planetary, and galactic studies
- Astronomical Observations and Instrumentation
- Astrophysics and Star Formation Studies
- Astro and Planetary Science
- Atmospheric Ozone and Climate
- Galaxies: Formation, Evolution, Phenomena
- Inorganic Fluorides and Related Compounds
- Astrophysical Phenomena and Observations
- Adaptive optics and wavefront sensing
- Scientific Research and Discoveries
- Catalysis and Oxidation Reactions
- Geomagnetism and Paleomagnetism Studies
Boston University
2012-2020
Abstract Auroral emissions are expected from the footprint of Callisto in Jupiter's upper atmosphere owing to known interaction its with magnetosphere, and observed auroral footprints other three Galilean satellites. The mapping along modeled magnetic field lines at Jupiter, however, places same latitude as main emissions, making it difficult detect. We analyzed ultraviolet images Jupiter taken using Hubble Space Telescope/Advanced Camera for Surveys instrument during a large observing...
The edge-on galaxy NGC 891 was probed using near-infrared (NIR) imaging polarimetry in the H-band (1.6 um) with Mimir instrument on 1.8 m Perkins Telescope. Polarization detected signal-to-noise ratio greater than three out to a surface brightness of 18.8 mag arcsec^-2. unweighted average and dispersion polarization percentage (P) across full disk were 0.7% 0.3%, respectively, same quantities for position angle (P.A.) 12 deg 19 deg, respectively. At least one null point, where P falls nearly...
Abstract A faint star located 2 arcsec from KIC 8462852 was discovered in Keck 10 m adaptive optics imaging the JHK near-infrared (NIR) 2014 by Boyajian et al. (2016). The closeness of to suggested that two could constitute a binary, which might have implications for cause brightness dips seen Kepler and ground-based optical studies. Here, NIR 2017 using Mimir instrument resolved pair enabled measuring their separation. had moved 67 ± 7 milliarcsec (mas) relative since 2014. proper motion is...
The Galactic Plane Infrared Polarization Survey (GPIPS) seeks to characterize the magnetic field in dusty disk using near-infrared stellar polarimetry. All GPIPS observations were completed 1.83 m Perkins telescope and Mimir instrument. surveyed 76 sq-deg of northern plane, from longitudes 18 56 deg latitudes -1 +1 deg, H-band (1.6 um). Surveyed stars span 7th 16th mag, resulting nearly 10 million with measured linear polarizations. Of these stars, ones m_H < 12.5 mag polarization percentage...