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<p>Dear all,</p>
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<p>This is a reminder of the weekly SU astronomy departmental seminar that will take place in about 48 minutes, at 10:30am in room FC61 (AlbaNova building, 6th floor) and on zoom (**NEW ZOOM MEETING** https://stockholmuniversity.zoom.us/j/62211269644?pwd=K0J2eVVMa3pTa1JVN2lyRUJPR3Rjdz09).
As usual, we encourage you to attend in person if possible.</p>
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<p>Speaker: Mahsa Sanati (Chalmers)</p>
<p>Title: From first stars to supermassive blackholes</p>
<p>Event: https://indico.fysik.su.se/e/mahsa_sanati</p>
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<p>Abstract:</p>
<p>Evidence supporting the existence of supermassive black holes (SMBHs), which host extremely bright quasars at high redshifts, imposes constraints on the formation and growth of their initial seeds. Recent JWST observations reveal the presence of such SMBHs
at even earlier epochs, providing only a few hundred million years for the black hole seeds to accrete gas and grow. The choice of a Eddington limited accretion is a common practice in modelling the growth of SMBH seeds, however, there are numerous uncertainties
regarding their accretion during initial stages. We propose a model for the formation of SMBHs from the remnants of a specific class of first stars known as Population III.1 stars, forming within isolated dark matter mini-halos in the early Universe. In this
model, SMBHs undergo growth through mergers and gas accretion, with their growth being regulated by AGN feedback. The talk aims to explore the growth and activity of SMBHs forming from Pop III.1 stars in cosmological simulations and the traces of this scenario
in the epoch of reionization. </p>
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<p>We look forward to seeing many of you there. Thanks!</p>
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<p>Adur, Adélaïde, and Sanja</p>
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<p>Upcoming Events:</p>
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<p>2024-02-09 Andrius Popovas</p>
<p>2024-02-16 Daniel Siegel</p>
<p>2024-02-21 Johan Richard (**Seminar on WEDNESDAY**)</p>
<p>2024-03-01 ** No seminar **</p>
<p>2024-03-08 TBA</p>
<p>2024-03-15 Joe Lewis</p>
<p>2024-03-22 Khaled Al Moulla</p>
<p>2024-03-29 ** No seminar **</p>
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<p>You can subscribe to the seminars calendar in: https://ttt.astro.su.se/ical/astro-seminars.ics</p>
<p>(Please note that calendar can be subject to updates)</p>
<p>___________________</p>
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<p>Join Zoom Meeting:</p>
<p>https://stockholmuniversity.zoom.us/j/62211269644?pwd=K0J2eVVMa3pTa1JVN2lyRUJPR3Rjdz09</p>
<p>Meeting ID: 622 1126 9644; Password : 593083</p>
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