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Still looking for people to join for lunch tomorrow, we'll leave around ~13:15 when Clive arrives.
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<div>Best,</div>
<div>Luke<br id="lineBreakAtBeginningOfMessage">
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>From:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">Luke Conaboy <Luke.Conaboy@nottingham.ac.uk><br>
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>Subject:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;"><b>[Astro] [CAPT] Astro seminar Wed 14th May 15:45 C4 -- Clive Tadhunter (Sheffield)</b><br>
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>Date:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">12 May 2025 at 09:11:41 BST<br>
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>To:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">"capt@nottingham.ac.uk" <capt@nottingham.ac.uk><br>
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<span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif; color:rgba(0, 0, 0, 1.0);"><b>Cc:
</b></span><span style="font-family: -webkit-system-font, Helvetica Neue, Helvetica, sans-serif;">Pamela Davies <Pamela.Davies@nottingham.ac.uk>, Kushal Pithia <ppykp2@nottingham.ac.uk><br>
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<div>Hi all,<br>
<br>
this week our seminar is given by Clive Tadhunter (Sheffield), details below. The seminar will be in C4.<br>
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Post-seminar refreshments will be wine and cheese.<br>
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Timings are as usual:<br>
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- lunch at Lakeside, leaving CAPT ~13:00 (subsidised for a limited number of students -- let me know before the end of the day tomorrow)<br>
- meet the speaker for postgrads at 15:00, finishing at 15:30<br>
- seminar at 15:45 in C5/C4<br>
- post-seminar wine and cheese at 16:45<br>
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This seminar will be conducted in person only.<br>
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Best,<br>
Jesse and Luke<br>
<br>
==<br>
<br>
Triggering quasars in the local universe<br>
<br>
The literature contains conflicting claims on the importance of mergers in triggering the most luminous quasar-like AGN activity. Part of this may be related to the classification methodology and issues surrounding the subtraction of the bright nuclear psf
for the type I AGN, but I will argue that the dominant factor is likely to be surface brightness depth. This can explain the apparent differences between HST- and ground-based estimates of merger rates for quasar host galaxies. Using new results from ground-based
observations with high surface brightness depth of samples of 3CR, 2Jy and SDSS-selected type 2 quasar sources as an example, I will demonstrate that mergers are likely to be the dominant, if not sole, triggering mechanism for quasars in the local Universe.
I will also stress that cosmological surface brightness dimming makes it particularly challenging to establish merger rates for quasar host galaxies at high redshifts. Finally, I will show how multi-wavelength observati<br>
ons can be used to investigate the nature of the triggering mergers.<br>
_______________________________________________<br>
CAPT mailing list<br>
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https://lists.nottingham.ac.uk/mailman/listinfo/capt<br>
-- <br>
Astro mailing list<br>
Astro@lists.nottingham.ac.uk<br>
https://lists.nottingham.ac.uk/mailman/listinfo/astro<br>
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