Events

Mon, April 24 4:00pm
JILA Auditorium
Astrophysical & Planetary Sciences Seminar
Big Bang to Biosignatures: The LUVOIR Decadal Mission Concept

Aki Roberge,
Goddard Space Flight Center

Abstract/Details

The Large UV/Optical/IR Surveyor (LUVOIR) is a concept for a highly capable, multi-wavelength observatory with ambitious science goals. This mission would enable great leaps forward in a broad range of science, from the epoch of reionization, through galaxy formation and evolution, star and planet formation, to solar system remote sensing. LUVOIR also has the major goal of characterizing habitable exoplanets around Sun-like stars and searching them for signs of life. LUVOIR is one of four Decadal Survey Mission Studies initiated in Jan 2016. The final report will be submitted to NASA and then the US National Academies in 2019. Here I will summarize LUVOIR’s broad and revolutionary science goals. I’ll explain our current vision for the instrument suite and aperture sizes to be studied. Finally, I’ll discuss the study process and what will happen over the next years in preparation for the 2020 Decadal Survey.  
Wed, April 26 12:00pm
JILA 10th Floor - Sunrise Room
Astrophysics Lunch Seminar
NOTE: Unusual day and location

David Kasper,
University of Wyoming
Wed, April 26 3:30pm
JSCBB Butcher Auditorium
Biochemistry Seminar
TBA

Robert Singer,
Albert Einstein College of Medicine
Wed, April 26 4:00pm
Duane Physics Room G1B20
Physics Department Colloquium
Building a Proportional Cell: Lessons from Physics

Jané Kondev,
Brandeis University

Abstract/Details

The inside of a living cell is spatially organized into different functional structures called organelles. For example, the nucleus is a membrane bound compartment that contains the cell's DNA, while the cytoskeleton is made up of dynamic protein fibers which allow cells to move and change shape.   Gulliver noticed 140 years ago that the size of the cell's nucleus is proportional to the size of the cell. Similar observations have been made about other micron-sale structures within the cell. These experiments suggest that cells measure and control the size of their organelles, and they raise a simple question: How does the cell establish a micron-scale ruler with nothing more at its disposal than nanometer-sized molecules that diffuse around the cell and on occasion bump into each other?  In this talk I will describe quantitative experiments and related theory that are beginning to reveal general principles of how cells control the size of their organelles. 
Thu, April 27 12:00pm
Duane Physics Room G126
Condensed Matter Seminar
TBA

Brent Fultz,
California Institute of Technology
Mon, May 01 4:00pm
JILA Auditorium
Astrophysical & Planetary Sciences Seminar
The Most Massive Black Holes in the Local Universe

Chung-Pei Ma,
University of California, Berkeley

Abstract/Details

For over three decades, the giant elliptical galaxy Messier 87 in the Virgo Cluster has hosted the most massive known black hole in the local universe. New observational data and improved stellar orbit models in the past several years have substantially expanded and revised dynamical measurements of black hole masses at the centers of nearby galaxies. I will describe recent progress in discovering black holes up to twenty billion solar masses in ongoing surveys of massive elliptical galaxies. This new population of ultra-massive black holes is revising our understanding of the symbiotic relationship between black holes and galaxies, and of the gravitational wave signals from merging binaries targeted by ongoing pulsar timing array experiments.
Wed, May 03 4:00pm
Duane Physics Room G1B20
Physics Department Colloquium
TBA

Jennifer Hoffman,
Harvard University
Thu, May 04 12:00pm
Duane Physics Room G126
Condensed Matter Seminar
TBA

Jenny Hoffman,
Harvard University
Fri, May 05 10:30am
Duane Physics Room G126
CTQM Seminar
TBA

Tarun Grover,
University of California San Diego
Thu, May 11 12:00pm
Duane Physics Room G126
Condensed Matter Seminar
TBA

Maksym Serbyn
Fri, May 19 12:00pm
JILA 10th Floor - Foothills Room
Astrophysics Lunch Seminar
TBA

Baylee Bordwell,
LASP
Sat, May 20 9:30am
Cristol Chemistry Room 140
CU Wizards Program
The Chemistry of Energy

Steven George
Fri, May 26 12:00pm
JILA 10th Floor - Foothills Room
Astrophysics Lunch Seminar
Simulation of Observations of the Cosmological 21-cm Signal

Keither Tauscher,
CU Physics, CASA
Sat, June 17 9:30am
Duane Physics Room G1B30
CU Wizards Program
For Very Big to Very Small...Microscopy and the Powers of Ten

Tom Perkins
Tue, August 15 12:00pm
JILA 10th Floor - Foothills Room
Astrophysics Lunch Seminar
Radio Pulsars

Joeri van Leeuwen,
University of Amsterdam

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