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PRODID:-//Heidelberg University//HePhySTO//EN
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DTEND:20261119T111500Z
UID:3be82cf88ee83b02cfa1f6bb4877cb13@physik.uni-heidelberg.de
DTSTAMP:20261007T215725Z
LOCATION:ARI\, Moenchhofstrasse 12-14\, Seminarraum 1.OG
DESCRIPTION:ABSTRACT 1: AGN feedback plays an important role in the evoluti
 on of their host galaxy\, yet the lifecycle\nof such an AGN event is still 
 not fully understood. First observations and new simulations suggest the pr
 esence of AGN driven outflows even after the galaxy nucleus is no longer ac
 tive. Using resolved spectroscopic data obtained with integral field units\
 , these so-called fossil outflows can be studied on a larger scale. Predict
 ions suggest that up to 60% of all observed outflows might be of fossil nat
 ure. In this talk\, I will present a selection method for candidate fossil 
 outflow regions in the SDSS-IV MaNGA galaxy sample comprising about 10\,000
  galaxies\nat low redshift. The method is based on kinematic elevation of t
 he ionized gas\, traced by broad [OIII]5007 emission line widths. By compar
 ing the gas kinematics with the stellar velocity dispersion\, gas motions d
 ominated by the gravitational potential can be distinguished from outflow-d
 riven motions. We identified a fossil outflow candidate sample of 269 non-A
 GN galaxies showing they are common in low redshift galaxies. I discuss som
 e promising candidates in more detail as well as an analysis of the outflow
  properties of the outflow candidates compared to currently active galaxies
 . Simple outflow age calculations suggest outflow detections\nup to about 8
  Myr after the AGN shutdown.\n\n\nABSTRACT 2: One of the prime mechanisms s
 uspected of driving the decline of star formation in massive\ngalaxies is t
 he so-called Active Galactic Nucleus (AGN) feedback\, which still remains t
 o this day as one of the least understood concepts in galaxy evolution. AGN
  feedback acts via many different\, often combined\, modes and when trying 
 to decipher these processes it is crucial to tackle the different forms of 
 feedback one by one to dissect their multi-faceted nature and understand wh
 ich effects result from which causes. In this talk I will present a case-st
 udy conducted as part of my Bachelor Thesis by my group on one AGN host gal
 axy\, dubbed the Cone Source\, aimed at investigating how AGN feedback in t
 he form of biconical outflows can locally affect the molecular gas reservoi
 r as well as star formation. For this purpose\, we combined and analyzed sp
 atially resolved 12CO(1-0) observations taken by the Northern Extended Mill
 imeter Array (NOEMA) with optical-IFU data from the MaNGA survey. In this d
 ata we find correlations of stellar properties with the multi-phase outflow
  strength as well as signs of a recent starburst phase within our galaxy\, 
 highlighting the complex evolution and interplay between AGN and their host
  galaxies.\n\nImported from https://www.physik.uni-heidelberg.de/hephysto/ 
 (no warranty for accuracy).
URL;VALUE=URI:https://www.physik.uni-heidelberg.de/hephysto/index.php?s=tal
 k&id=13010
SUMMARY:ARI Institute Colloquium: 1. Theodor Brosi (ARI)\, 2. Matthias Kunt
 z (ARI) - 1. Kinematic signatures for fossil AGN outflows in the SDSS MaNGA
  sample / 2. The impact of multi-phase AGN driven outflows: A galaxy caught
  between starbust and quenching?
DTSTART:20261119T101500Z
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