232 citations · 477 across the 24 of their papers we have counts for
6 papers · 1 filter
Stellar spectropolarimetry with HiVIS: Herbig Ae/Be stars, circumstellar environments and optical pumping
D. M. Harrington
The polarization of light across spectral lines contains information about the circumstellar material on small spatial scales. Many models relate the circumstellar environment to o…
Extended Commissioning and Calibration of the Dual-Beam Imaging Polarimeter
Joseph Masiero, Klaus Hodapp, David Harrington +1
In our previous paper (Masiero et al. 2007) we presented the design and initial calibrations of the Dual-Beam Imaging Polarimeter (DBIP), a new optical instrument for the Universit…
High Resolution Spectropolarimetry of the H-alpha Line: Obscured Stars and Absorptive Polarization
D. M. Harrington, J. R. Kuhn
The near-star environment around obscured stars is very dynamic. Many classes of stars show evidence for winds, disks, inflows and outflows with many phenomena occurring simultaneo…
Commissioning of the Dual-Beam Imaging Polarimeter for the UH 88-inch telescope
Joseph Masiero, Klaus Hodapp, Dave Harrington +1
In this paper we present the design, calibration method, and initial results of the Dual-Beam Imaging Polarimeter (DBIP). This new instrument is designed to measure the optical pol…
First Direct Detection of Magnetic Fields in Starspots and Stellar Chromospheres
S. V. Berdyugina, D. M. Fluri, N. Afram +5
Here we report on the first detection of circular polarization in molecular lines formed in cool magnetic regions (starspots) and in chromospheric emission lines formed in hot plag…
The new HiVIS spectropolarimeter and spectropolarimetric calibration of the AEOS telescope
D. M. Harrington, J. R. Kuhn, K. Whitman
We designed, built, and calibrated a new spectropolarimeter for the HiVIS spectrograph (R 12000-49000) on the AEOS telescope. We also did a polarization calibration of the telescop…