<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">Note also that Esha Kundu’s defence this afternoon has changed room to FB53.</div><div dir="ltr"><br>On 4 Feb 2019, at 03:37, Alexis Brandeker <<a href="mailto:alexis@astro.su.se">alexis@astro.su.se</a>> wrote:<br><br></div><blockquote type="cite"><div dir="ltr"><meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<font size="2"><span style="font-size:10pt;"><div class="PlainText">On Friday at 10:30 in FC61 there will a joint Astronomy and Atomic & <br>
Chemical physics seminar by Jonathan Tennyson (UCL) who will give a bit <br>
more technical talk than his general colloquium on Thursday. Also on <br>
Friday but at 13:00, Esha Kundu will defend her PhD thesis on "Radio <br>
Emission from Supernovae" in *FB53*.<br>
<br>
Speaker: Jonathan Tennyson (UCL)<br>
<br>
Title: Calculating accurate spectra for water and other small molecules <br>
from first principle<br>
<br>
Abstract:<br>
The equations of quantum mechanics provide a complete framework to <br>
compute the spectra of molecules; doing this accurately requires <br>
detailed numerical treatment of both the electronic and nuclear motion. <br>
To obtain transition frequencies close to experimental accuracy requires <br>
the consideration of many effects not usually considered in standard <br>
electronic structure calculations; conversely experience shows that it <br>
is often possible to compute transition intensities with lower <br>
uncertainty than they can be measured. The seminar will discuss some of <br>
the methods used for these studies focusing on atmospherically and <br>
astronomically important molecules such as water, CO2 and H3+.<br>
<br>
Other upcoming events:<br>
<br>
14 Thu 15:00 FC61 Seminar Steven Longmore<br>
15 Fri 13:00 FA31 PhD defence Matteo Messa<br>
22 Fri 10:30 FC61 Seminar Rubén Asemsio Torres<br>
<br>
All welcome!<br>
Alexis Brandeker (Astronomy seminar organiser VT 2019)<br>
<br>
<br>
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