BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//jEvents 2.0 for Joomla//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:America/Chicago
BEGIN:STANDARD
DTSTART:20210117T153000
RDATE:20210314T030000
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:America/Chicago CST
END:STANDARD
BEGIN:STANDARD
DTSTART:20211107T010000
RDATE:20220313T030000
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:America/Chicago CST
END:STANDARD
BEGIN:STANDARD
DTSTART:20221106T010000
RDATE:20230312T030000
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:America/Chicago CST
END:STANDARD
BEGIN:STANDARD
DTSTART:20231105T010000
RDATE:20240310T030000
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:America/Chicago CST
END:STANDARD
BEGIN:STANDARD
DTSTART:20241103T010000
RDATE:20250309T030000
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:America/Chicago CST
END:STANDARD
BEGIN:STANDARD
DTSTART:20251102T010000
RDATE:20260308T030000
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:America/Chicago CST
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:20210314T030000
RDATE:20211107T010000
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:America/Chicago CDT
END:DAYLIGHT
BEGIN:DAYLIGHT
DTSTART:20220313T030000
RDATE:20221106T010000
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:America/Chicago CDT
END:DAYLIGHT
BEGIN:DAYLIGHT
DTSTART:20230312T030000
RDATE:20231105T010000
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:America/Chicago CDT
END:DAYLIGHT
BEGIN:DAYLIGHT
DTSTART:20240310T030000
RDATE:20241103T010000
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:America/Chicago CDT
END:DAYLIGHT
BEGIN:DAYLIGHT
DTSTART:20250309T030000
RDATE:20251102T010000
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:America/Chicago CDT
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:Astronomy Colloquium
LOCATION:TBD
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:
Astronomy Colloquium
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220118T153000
DTEND;TZID=America/Chicago:20220118T163000
SEQUENCE:0
RRULE:FREQ=WEEKLY;UNTIL=20220504T000000Z;INTERVAL=1;BYDAY=TU
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:Spring Break
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:Spring Break
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220315T153000
DTEND;TZID=America/Chicago:20220315T163000
RECURRENCE-ID;TZID=America/Chicago:20220315T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:Two Talks
LOCATION:Online
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:Juan Farias, The University of Texas at Austin
Binary Evolution on Different Cluster Environments
Dani
elle Berg, The University of Texas at Austin
Bridging Gal
axy Evolution Across Cosmic Time With the CLASSY Survey
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220201T153000
DTEND;TZID=America/Chicago:20220201T163000
RECURRENCE-ID;TZID=America/Chicago:20220201T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:No Colloquium
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:No Colloquium
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220208T153000
DTEND;TZID=America/Chicago:20220208T163000
RECURRENCE-ID;TZID=America/Chicago:20220208T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:No Colloquium
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:No Colloquium - See Special Seminars on Mondays and Wednesdays
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220215T153000
DTEND;TZID=America/Chicago:20220215T163000
RECURRENCE-ID;TZID=America/Chicago:20220215T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:No Colloquium
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:No Colloquium - See Special Seminars on Mondays and Wednesdays
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220222T153000
DTEND;TZID=America/Chicago:20220222T163000
RECURRENCE-ID;TZID=America/Chicago:20220222T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:No Colloquium
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:No Colloquium - See Special Seminars on Mondays and Wednesdays
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220301T153000
DTEND;TZID=America/Chicago:20220301T163000
RECURRENCE-ID;TZID=America/Chicago:20220301T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:No Colloquium
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:No Colloquium - See Special Seminars on Mondays and Wednesdays
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220308T153000
DTEND;TZID=America/Chicago:20220308T163000
RECURRENCE-ID;TZID=America/Chicago:20220308T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:Scott Gaudi, The Ohio State University
LOCATION:PMA 15.216B and online
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:The Roman Space Telescope Galactic Bulge Time Domain Survey: Exoplan
et Demographics and So Much More!
Abstract
The
Nancy Grace Roman Space Telescope is the next NASA Astrophysics flagship mi
ssion scheduled to launch no later than May 2027. Roman’s Galactic Bu
lge Time Domain Survey (GBTDS) will provide an unprecedented census of extr
asolar cold and free-floating planets detected via gravitational microlensi
ng of background stars. The notional survey design involves seven fie
lds (with a total area ~2 sq. degrees) monitored by Roman’s Wide Field Inst
rument continuously every 15 minutes during six 72-day bulge seasons when t
he Galactic bulge is visible from Roman. This survey will also enable
a broad range of auxiliary science, including the measurement of the compa
ct object mass function over ten orders of magnitude, the detection of 100,
000 Transiting Planets, astroseismology of 1,000,000 bulge giants, the dete
ction of 5000 trans-Neptunian objects, and the measurement of parallaxes an
d proper motions of 6,000,000 bulge and disk stars. Although the para
meters of the GBTDS needed to achieve Roman’s core science requirement are
relatively tightly constrained, some alterations and/or augmentation may re
sult in significant additional science without sacrificing these requiremen
ts.
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220322T153000
DTEND;TZID=America/Chicago:20220322T163000
RECURRENCE-ID;TZID=America/Chicago:20220322T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:Eric Mamajek, Jet Propulsion Laboratory
LOCATION:PMA 15.216B and online
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:Pathways to ‘a Robust Sample of ~25 Atmospheric Spectra of Potential
ly Habitable Exoplanets'
Abstract
Advances in astronomical observing techniques has led to the discovery of
exoplanets (now over 5000) over the past three decades. While NASA's Kepler
mission has provided observational evidence that exoplanets are ubiquitous
, and placed statistical constraints on the frequency of temperate rocky pl
anets (i.e. potentially habitable worlds) - the discovery and characterizat
ion of truly Earth-like exoplanets orbiting Sun-like stars, and the search
for signs of life on those worlds, remain significant generational challeng
es for the astronomical community. The Astro2020 Decadal Survey ("Pathways
to Discovery in Astronomy and Astrophysics for the 2020s") recently recomme
nded that NASA initiate a Great Observatories Mission and Technology Matura
tion Program. The first priority observatory to be matured was recommended
by the Decadal to be a large (~6-meter) space-based Infrared/Optical/Ultrav
iolet telescope with high-contrast imaging capable of spectrally characteri
zing a "robust sample" (~25) of potentially habitable exoplanets, and to be
a transformative facility for general astrophysics (with the goal of launc
hing by the early 2040s). Achieving the scientific goal of the Decadal IR/O
/UV space telescope of spectroscopically characterizing a robust sample of
the nearest temperate rocky exoplanets orbiting the nearest Sun-like stars
has the potential to alter our perceptions of Earth and humanity's place in
the universe. I'll discuss some recent science and technology development
by the NASA Exoplanet Exploration Program (ExEP) to prepare for exploring o
ptions for the Decadal IR/O/UV space telescope.
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220329T153000
DTEND;TZID=America/Chicago:20220329T163000
RECURRENCE-ID;TZID=America/Chicago:20220329T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:Priyamvada Natarajan, Yale University
LOCATION:Online and PMA 15.216B
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:Stress-Testing the Cold Dark Matter Paradigm
Abstract
Observations of structure formation and
assembly over a range of physical (Gpc to pc) and temporal (109
-103 yr) scales have been successfully accounted for by the conc
ordance cosmological model comprising cold dark matter (CDM) and a cosmolog
ical constant. Recently, however, tensions have emerged in the several key
directions, from: the discordant (now at the 5-sigma level) measurements of
the Hubble parameter; discrepant observationally determined values of the
growth of structure parameter sigma-8 and most recently from the order of m
agnitude discrepancy in strong lensing cross-sections on small-scales in ga
laxy clusters. I will elaborate on this third tension, derived from galaxy-
galaxy strong lensing. While several other crises on small-scales in CDM re
ported in the past stand resolved, this new one intriguingly persists. In t
his talk, I focus on this new gnawing gap between the observed and theoreti
cally predicted galaxy-galaxy strong lensing cross-sections inferred from t
he small-scale lensing properties of cluster member galaxies. The implicati
ons of this mis-match and potential resolutions, both within the standard c
old dark matter paradigm and beyond will be discussed.
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220405T153000
DTEND;TZID=America/Chicago:20220405T163000
RECURRENCE-ID;TZID=America/Chicago:20220405T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:No talk scheduled
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:No talk scheduled
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220412T153000
DTEND;TZID=America/Chicago:20220412T163000
RECURRENCE-ID;TZID=America/Chicago:20220412T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:Dimitri Mawet, California Institute of Technology
LOCATION:Online and PMA 15.216B
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:Detecting and Characterizing Exoplanets at High Angular and Spectral
Resolutions
Abstract
Twenty-seve
n years after the discovery of the first planet orbiting a star other than
the Sun, it is now clear that extrasolar planets are ubiquitous in the gala
xy. Though our understanding of exoplanet demographics has dramatically exp
anded in recent years, many fundamental questions about their origin and co
mposition remain. High-precision high-resolution spectroscopy (HRS) at the
diffraction limit of large telescopes enables the most detailed measurement
s of exoplanet properties, including their atmospheric composition and dyna
mics, orbits, and masses. I will present recent results obtained with the K
eck Planet Imager and Characterizer (KPIC) at W.M. Keck Observatory as well
as prospects for revolutionary advances in exoplanet detection and charact
erization with future ground- and space-based facilities.
div>
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220419T153000
DTEND;TZID=America/Chicago:20220419T163000
RECURRENCE-ID;TZID=America/Chicago:20220419T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:Xiaohui Fan, Steward Observatory
LOCATION:Online and PMA 15.216B
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:
Quasars and the Intergalactic Medium at Cosmic Dawn
Abstract
High-redshift quasars provide direct pro
bes to the formation of the earliest supermassive black holes, their connec
tions to early galaxy formation, and the history of cosmic reionization. Mo
re than 200 quasars have now been discovered in the first billion years of
the cosmic history, with the highest redshift currently at z=7.6, indicatin
g that billion solar mass black holes have already fully formed merely half
billion years after the first star formation in the universe. I will (1) r
eview the current state of high-redshift quasar surveys and discoveries, as
a result of the new generations of wide-field sky surveys and developments
in data mining and machine learning; (2) discuss using high-redshift quasa
rs as probes to the history of supermassive black hole growth in the early
universe, using measurements of quasar luminosity function and black hole m
asses; (3) present the latest observations of the the co-evolution of early
SMBH growth and galaxy formation, and the roles quasar played in early gal
axy formation and structure formation; and (4) review the progress of using
IGM absorption in quasar sightlines and properties of quasar proximity zon
es, which is unveiling a rapid and highly inhomogeneous reionization proces
s at z~5.5 - 7.5. I will close with a discussion about the future of h
igh-redshift quasar research, in the context of facilities such as JWST, LS
ST and Roman Space Telescope.
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220426T153000
DTEND;TZID=America/Chicago:20220426T163000
RECURRENCE-ID;TZID=America/Chicago:20220426T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:Jacqueline Hodge, Leiden Observatory
LOCATION:TBD
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:
Revealing the Dark Side of Star Formation at High-Redshift
Abstract
A substantial fraction of the Uni
verse's star formation is heavily enshrouded by dust, and this basic fact h
as long been a hindrance to the development of a complete picture of galaxy
evolution. Now, thanks to the advent of the Atacama Large Millimeter Array
(ALMA) and the upgrades to the Karl G. Jansky Very Large Array (VLA), our
view of dusty star formation at high-redshift is undergoing a radical trans
formation. I will present the latest results from COSMOS-XS, an ultra-deep
VLA survey putting new constraints on the dust-unbiased star formation beyo
nd the peak epoch of galaxy assembly. I will discuss what we have learned a
bout the dustiest high-z galaxies thanks to ALMA, as well as imminent advan
ces with James Webb Space Telescope (JWST). Finally, I will present new obs
ervations shedding insight into dust-obscured star formation in the epoch o
f reionization (z>6.5).
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220503T153000
DTEND;TZID=America/Chicago:20220503T163000
RECURRENCE-ID;TZID=America/Chicago:20220503T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:No talk scheduled
LOCATION:TBD
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:
No talk scheduled
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220118T153000
DTEND;TZID=America/Chicago:20220118T163000
RECURRENCE-ID;TZID=America/Chicago:20220118T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
BEGIN:VEVENT
UID:c66a29a0ed5b138455a8954a2124f3bf
CATEGORIES:Astronomy Colloquium
SUMMARY:No talk scheduled
LOCATION:TBD
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:
No talk scheduled
DTSTAMP:20240328T094959Z
DTSTART;TZID=America/Chicago:20220125T153000
DTEND;TZID=America/Chicago:20220125T163000
RECURRENCE-ID;TZID=America/Chicago:20220125T153000
SEQUENCE:0
TRANSP:OPAQUE
END:VEVENT
END:VCALENDAR