<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<body>
Hi all,
<div><br>
</div>
<div>Reminder of this today at 1pm in A113!</div>
<div><br>
</div>
<div>Joe</div>
<div dir="ltr" class="AppleOriginalContents"><br>
</div>
<blockquote>
<div dir="ltr" class="AppleOriginalContents">On 27 May 2025, at 12:44, Joseph Butler <Joseph.Butler@nottingham.ac.uk> wrote:</div>
<div dir="ltr" class="AppleOriginalContents"><br>
</div>
<div dir="ltr" class="AppleOriginalContents" style="font-size: 14px;">Hi everyone,</div>
<div dir="ltr" class="AppleOriginalContents" style="font-size: 14px;"><br>
</div>
<div dir="ltr" class="AppleOriginalContents" style="font-size: 14px;">This week¡¯s lunch talk will be given by Jade, at 1pm Thursday in A113. Title and abstract are below.</div>
<div dir="ltr" class="elementToProof" style="line-height: 16px; margin-top: 1em; margin-bottom: 0cm; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 14px;">
<b>Title:</b> A 13^CO Detection in a Jet-Driven Molecular Gas Flow</div>
<div dir="ltr" class="elementToProof" style="line-height: 16px; margin-top: 1em; margin-bottom: 0cm; font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 14px;">
<b>Abstract:</b> Galaxies undergo significant evolution from the early Universe to the present day; feedback processes are vital ingredients needed to help untangle the details of this transformation. Powerful jets driven by active galactic nuclei (AGN) have
a key role in suppressing gas cooling, modulating the cooling gas that infalls into the host galaxy's centre. These radio jets inflate large bubbles, which displace the hot atmosphere and are visible as cavities in X-ray surface brightness. In the central
galaxy of Abell 1795, the powerful radio source has inflated two large bubbles, North (N) and South (S) of the AGN. These filaments of molecular gas are exclusively projected around the bubble rims and their smooth velocity gradients imply the gas flows are
entrained by the bubbles (Russell et al. 2017). The interplay of molecular gas flows, jets and jet-inflated radio bubbles in AGN feedback remains unknown. Russell et al. (2017) found that the energy required to lift the N filament (10^9 M¨‘) exceeds the N radio
bubble's mechanical energy. This result was produced by assuming the Galactic value for the CO-to-H_2 conversion factor, ¦Á_CO,MW, to determine the filament's molecular mass. This talk describes how a detection of 13^CO in Abell 1795¡¯s entrained flow, made
by the Atacama Large Millimeter Array (ALMA), was used to measure ¦Á_CO and investigate if the mass was previously overestimated.</div>
<div dir="ltr" class="AppleOriginalContents" style="font-size: 14px;"><br>
</div>
<div dir="ltr" class="AppleOriginalContents" style="font-size: 14px;">Thanks,</div>
<div dir="ltr" class="AppleOriginalContents" style="font-size: 14px;">Joe</div>
<div dir="ltr" class="AppleOriginalContents">--<br>
Astro mailing list<br>
Astro@lists.nottingham.ac.uk<br>
https://lists.nottingham.ac.uk/mailman/listinfo/astro<br>
</div>
</blockquote>
<br>
</body>
</html>