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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20180208T103000
DTEND;TZID=Atlantic/Canary:20180208T113000
UID:iactalks-1128
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1128
CREATED:2018-02-08T10:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Kinematics and dynamics of molecular gas in galaxies
DESCRIPTION:Kinematics and dynamics of molecular gas in galaxies\nDr. Aless
 andro Lupi\n\nMolecular hydrogen (H2) is a fundamental component of galaxi
 es, being the most abundant element in molecular clouds, where stars form,
  and an important source of radiative cooling at low temperature. With the
  advent of the ALMA telescope, a large amount of data about the distributi
 on of H2 in galaxies has become available. However, the large majority of 
 numerical simulations on galactic and cosmological scales still lacks the 
 ability to directly follow the formation and dissociation of H2, and must 
 rely on pre-calibrated sub-grid models to compare the results with observa
 tions. I will present a new model to self-consistently track the evolution
  of H2, including gas and dust shielding, H2 self-shielding, star formatio
 n (SF), supernova feedback, and extragalactic and local stellar radiation.
  I will discuss the results of a suite of hydrodynamic simulations of an i
 solated gas-rich galaxy at z=3, showing that the model can naturally repro
 duce the observed correlation between SF and H2 surface densities, without
  assuming any a priori dependence of SF on the H2 abundance. I will also p
 resent a study of the kinematics and dynamics of molecular gas in high-red
 shift quasars (z=6), where we investigate whether a central accreting blac
 k hole (BH) can significantly affect the H2 distribution in the host galax
 y and generate molecular outflows.
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