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- Herzberg Institute of AstrophysicsCA335 papers
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6 papers · 2 filters
New Blue and Red Variable Stars in NGC 247
T. J. Davidge
Images recorded with the Gemini Multi-Object Spectrograph (GMOS) on Gemini South are combined with archival images from other facilities to search for variable stars in the souther…
The Global Magneto-Ionic Medium Survey: A Faraday Depth Survey of the Northern Sky Covering 1280-1750 MHz
M. Wolleben, T. L. Landecker, K. A. Douglas +17
The Galactic interstellar medium hosts a significant magnetic field, which can be probed through the synchrotron emission produced from its interaction with relativistic electrons.…
Hubble Space Telescope [O III] Emission-Line Kinematics in Two Nearby QSO2s: A Case for X-ray Feedback
Anna Trindade Falcão, S. B. Kraemer, T. C. Fischer +15
We present a dynamical study of the narrow-line regions in two nearby QSO2s. We construct dynamical models based on detailed photoionization models of the emission-line gas, includ…
The Southern HII Region Discovery Survey. II. The Full Catalog
Trey V. Wenger, J. R. Dawson, John M. Dickey +6
The Southern HII Region Discovery Survey (SHRDS) is a 900 hour Australia Telescope Compact Array 4-10 GHz radio continuum and radio recombination line (RRL) survey of Galactic HII…
The Galactic Faraday rotation sky 2020
Sebastian Hutschenreuter, Craig S. Anderson, Sarah Betti +34
This work gives an update to existing reconstructions of the Galactic Faraday rotation sky by processing almost all Faraday rotation data sets available at the end of the year 2020…
The Lop-sided Spiral Galaxy NGC 247: Clues to a Possible Interaction with NGC 253
T. J. Davidge
Observations that span a broad range of wavelengths are used to examine asymmetries in the disk of the nearby late-type spiral galaxy NGC 247. The northern spiral arm is over-lumin…