63 citations · 229 across the 11 of their papers we have counts for
11 papers
Tomographic Imaging of the Sagittarius Spiral Arm's Magnetic Field Structure
Yasuo Doi, Kengo Nakamura, Koji S. Kawabata +16
The Galactic global magnetic field is thought to play a vital role in shaping Galactic structures such as spiral arms and giant molecular clouds. However, our knowledge of magnetic…
Interstellar Polarization Survey III: Relation Between Optical Polarization and Reddening in the General Interstellar Medium
Y. Angarita, M. J. F. Versteeg, M. Haverkorn +4
Optical starlight can be partially polarized while propagating through the dusty, magnetized interstellar medium. The polarization efficiency describes the polarization intensity f…
Interstellar Polarization Survey II: General Interstellar Medium
M. J. F. Versteeg, A. M. Magalhães, M. Haverkorn +4
Magnetic fields permeate the entire Galaxy and are essential to, for example, the regulation of several stages of the star formation process and cosmic ray transportation. Unraveli…
Ultraviolet Spectropolarimetry with Polstar: Interstellar Medium Science
B-G Andersson, Geoffrey C. Clayton, Kirstin D. Doney +5
Continuum polarization over the UV-to-microwave range is due to dichroic extinction (or emission) by asymmetric, aligned dust grains. Because of both grain alignment and scattering…
A New Optical Polarization Catalog for the Small Magellanic Cloud: The Magnetic Field Structure
A. Lobo Gomes, A. M. Magalhães, A. Pereyra +1
We present a new optical polarimetric catalog for the Small Magellanic Cloud (SMC). It contains a total of 7207 stars, located in the Northeast (NE) and Wing sections of the SMC an…
Comparisons of the Interstellar Magnetic Field Directions obtained from the IBEX Ribbon and Interstellar Polarizations
Priscilla C. Frisch, B-G Andersson, Andrei Berdyugin +7
Variations in the spatial configuration of the interstellar magnetic field (ISMF) near the Sun can be constrained by comparing the ISMF direction at the heliosphere found from the…
Properties of the Scorpii Circumstellar Disk from Continuum Modeling
A. C. Carciofi, A. S. Miroshnichenko, A. V. Kusakin +8
We present optical and infrared photometric observations of the Be binary system Sco, obtained in 2000--2005, mid-infrared (10 and m) photometry and optical…
Evolution of the Inner Circumstellar Envelope of V838 Monocerotis
John P. Wisniewski, Karen S. Bjorkman, Antonio M. Magalhaes
We present imaging polarimetry observations of the eruptive variable V838 Monocerotis and its neighboring field obtained in 2002 October. The polarization of field stars confirms t…
Blobs in Wolf-Rayet Winds: Random Photometric and Polarimetric Variability
Claudia V. Rodrigues, A. Mario Magalhaes
Some isolated Wolf-Rayet stars present random variability in their optical flux and polarization. We make the assumption that such variability is caused by the presence of regions…
Spectropolarimetry of the Luminous Narrow-Line Seyfert Galaxies IRAS 20181-2244 and IRAS 13224-3809
Laura E. Kay, A. M. Magalhaes, F. Elizalde +1
We observed the narrow-line Seyfert 1 galaxies IRAS 20181-2244 and IRAS 13324-3809 with a new spectropolarimeter on the RC spectrograph at the CTIO 4m telescope. Previously it had…
Multiwavelength Monitoring of the BL Lacertae Object PKS 2155-304 in May 1994. I. The Ground-Based Campaign
J. E. Pesce, C. M. Urry, L. Maraschi +29
Optical, near-infrared, and radio observations of the BL Lac object PKS2155-304 were obtained simultaneously with a continuous UV/EUV/X-ray monitoring campaign in 1994 May. Further…