52 citations
- Center for Astrophysics Harvard & SmithsonianUS5 papers
- Lowell ObservatoryUS5 papers
- United States Naval Research LaboratoryUS4 papers
- California Institute of TechnologyUS3 papers
- Florida International UniversityUS3 papers
- Naval Research Laboratory Remote Sensing Division3 papers
- University of ArizonaUS3 papers
- European Southern ObservatoryCL2 papers
- IBM Research - Thomas J. Watson Research CenterUS2 papers
- IBM (United States)US2 papers
- Kitt Peak National ObservatoryUS2 papers
- Michigan State UniversityUS2 papers
12 papers · 1 filter
A High-Resolution Study of the HI Content of Local Group Dwarf Irregular Galaxy WLM
Amanda Kepley, Eric Wilcots, Deidre Hunter +1
Dwarf irregular galaxies are unique laboratories for studying the interaction between stars and the interstellar medium in low mass environments. We present the highest spatial res…
Initial Results from the USNO Dispersed Fourier Transform Spectrograph
Arsen R. Hajian, Bradford B. Behr, Andrew T. Cenko +15
We have designed and constructed a ``dispersed Fourier Transform Spectrometer'' (dFTS), consisting of a conventional FTS followed by a grating spectrometer. By combining these two…
Loki, Io: New groundbased observations and a model describing the change from periodic overturn
Julie A. Rathbun, John R. Spencer
Loki Patera is the most powerful volcano in the solar system. We have obtained measurements of Loki's 3.5 micron brightness from NASA's Infrared Telescope Facility (IRTF) and have…
DDO 43: A Prototypical Dwarf Irregular Galaxy?
Caroline E. Simpson, Deidre A. Hunter, Tyler E. Nordgren
We present sensitive and high resolution 21 cm observations of the dwarf irregular (dIm) galaxy DDO 43, in conjunction with optical broad and narrow band images in U, B, V, and Hal…
Predicted and empirical radii of RR Lyrae stars
M. Marconi, T. Nordgren, G. Bono +2
We present new theoretical Period-Radius-Metallicity (PRZ) relations for RR Lyrae stars. Current predictions are based on a large set of nonlinear, convective models that cover a b…
Asymmetric Surface Brightness Distribution of Altair Observed with the Navy Prototype Optical Interferometer
Naoko Ohishi, Tyler E. Nordgren, Donald J. Hutter
An asymmetric surface brightness distribution of the rapidly rotating A7IV-V star, Altair, has been measured by the Navy Prototype Optical Interferometer (NPOI). The observations w…