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SUMMARY:The Influence of Bars on Gas Concentrations and Star Formation in 
 Nearby Galaxies
DTSTART;VALUE=DATE-TIME:20261028T171500Z
DTEND;VALUE=DATE-TIME:20261028T172500Z
DTSTAMP;VALUE=DATE-TIME:20261024T222158Z
UID:indico-contribution-3664@nyx.physics.mcgill.ca
DESCRIPTION:Speakers: Jennifer Laing (McMaster University)\nGalactic bars 
 exist in over half of the galaxies in our local universe\, but studies of 
 the resolved gas properties in the bar have been limited to small samples 
 of star forming spiral galaxies. The ALMA program Kiloparsec Investigation
 s of Local Objects’ Gas And Star-formation (KILOGAS) is a survey of the 
 molecular gas in 450 mass-selected galaxies covering the full parameter sp
 ace of star forming\, quenching\, and quiescent galaxies. At redshifts bet
 ween 0.015 and 0.06\, all galaxies have unprecedented spatial resolution o
 f 1 kpc that are matched with optical field spectroscopy from the MaNGA an
 d SAMI surveys\, allowing for a detailed comparison of the molecular gas w
 ith resolved properties from ionized gas such as stellar mass\, star forma
 tion rates\, and metallicity. I will present results of our analysis using
  radial profiles of molecular gas surface density and star formation rate 
 surface density\, where we have found that galaxies with a strong bar have
  more centrally concentrated molecular gas and star formation. Our finding
 s are broadly consistent with results from Chown et al. (2019) who used a 
 smaller sample of star forming galaxies and found that galaxies with highe
 r molecular gas concentrations and centrally enhanced star formation tend 
 to be barred galaxies. We expect gas concentrations to be higher due to ga
 s inflows along the bar which have been found to suppress star formation e
 fficiency. I will further present results from a full classification of ba
 rred galaxies in the KILOGAS sample using both optical and position-veloci
 ty diagrams.\n\nhttps://nyx.physics.mcgill.ca/event/587/contributions/3664
 /
LOCATION:Online 
URL:https://nyx.physics.mcgill.ca/event/587/contributions/3664/
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