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The JCMT BISTRO Survey: A First Look at 850 and 450 micron dust polarization images toward high-density star-forming gas

Ray S. Furuya
Institute of Liberal Arts and Sciences, Tokushima University, Japan

I will present the a first look of the representative 450 micron polarization images taken with the B-fields In STar-forming Region Observations (BISTRO) survey using the POL-2 polarimeter POL-2 in front of the Sub-millimeter Common-User Bolometer Array 2 (SCUBA-2) camera on the James Clerk Maxwell Telescope (JCMT) obtained as of 2018 summer. In the talk, I present the survey’s objectives and the results from the 850-micron linear polarization images of thermal emission from dusts, as well as the 450 micron ones. Typical sensitivity of the POL-2 maps is almost one order of magnitude higher than the previous images, allowing us to detect weakly polarized emission, even e.g., in the periphery of molecular clouds and inside molecular filaments. Clearly BISTRO data stand unique in the sense that they connect spatial scales that can be imaged with the Planck satellite and ALMA. In the talk, a first comparison of the polarization properties measured by the 850 and 450 micron will be presented along with future analysis plans.

2019 September 30, 13:30

Centro de Astrofísica da Universidade do Porto (Auditorium)
Rua das Estrelas, 4150-762 Porto

Faculdade de Ciências da Universidade de Lisboa Universidade do Porto Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia