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<p>Hi all, <br>
<br>
We will have our first <span class="gmail-il">PASS</span> <span
class="gmail-il">talk</span> of the quarter on Monday by
Johnson Jiang. Please join us at noon (<b>from 1:00 pm</b>
to 2:00 pm) in the Nebula Room (PHYS 3027). </p>
<p><b>Please note the unusual time of the talk.</b><br>
<br>
<br>
</p>
<div align="center"><strong>Johnson Jiang</strong><b>, PhD student</b><br>
Monday, 1:00 pm, Nebula Room (PHYS 3027)</div>
<div align="center"><b>Scattered synchrotron emission revealed in
polarized light</b><br>
</div>
<div align="center"><br>
Centaurus A is the nearest radio galaxy and a prototypical
low-luminosity active galactic nucleus (AGN), exhibiting complex
emission across the electromagnetic spectrum. The nature of its
continuum emission, particularly the mechanisms powering it,
remains debated due to heavy dust obscuration preventing direct
observation of the AGN. I present spectropolarimetric
observations of Centaurus A with VLT/FORS2 that covers the
6100−10300 Å spectral range, providing a periscopic view of the
central engine. A strict upper limit is placed on the power of
the accretion flow and we confirm for the first time that
scattered beamed synchrotron emission is observed in reflection.
Interestingly, spectropolarimetry also reveals Centaurus A as a
hidden narrow-line region (NLR) AGN with a giant torus.
Additionally, I present a spectropolarimetric study of 3C 270
(NGC 4261). <br>
</div>
<br>
If you’re interested in sharing your work as a speaker, please
feel free to add your name to this spreadsheet [<a
href="https://docs.google.com/spreadsheets/d/1N3ncf43jdB6aHYHhyWmyHMycxDg4_phHZXLkQvviO0o/edit?usp=sharing"
target="_blank">Google Sheet</a>]. Recordings of all of the last
quarter's talks are available at our website: <a
href="https://ucrpass.arxiv.social/" target="_blank"
class="moz-txt-link-freetext">https://ucrpass.arxiv.social</a>
<div><br>
</div>
<div><br>
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Best,<br>
Pooyan<br>
Physics and Astronomy Student Seminar (<span class="gmail-il">PASS</span>)
<br>
<a href="https://ucrpass.arxiv.social/" target="_blank"
class="moz-txt-link-freetext">https://ucrpass.arxiv.social</a></div>
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