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2015 Fall Science Colloquia Webcasts
Wednesday Sep 2, 2015
2015 Fall Science Colloquia
Casey Papovich (Texas A&M)
One of the great triumphs of astrophysics is that we are able to predict the growth of dark-matter structures in our Universe with high accuracy. I will discuss how we use observations of galaxies to trace these dark matter structures, and how we us ...
Wednesday Sep 9, 2015
2015 Fall Science Colloquia
Mark Reid (CfA Harvard)
Over 2000 years ago, Hipparcus measured the distance to the Moon by triangulating from two locations across the Mediterranean Sea. However, determining distances to stars proved much more difficult. Many of the best scientists of the 16th through 1 ...
Wednesday Sep 16, 2015
2015 Fall Science Colloquia
Zeljko Ivezic (University of Washington)
Studies of stellar populations, understood to mean collections of stars with common spatial, kinematic, chemical, and/or age distributions, have been reinvigorated during the last decade by the advent of large-area sky surveys such as SDSS, 2MASS, R ...
Wednesday Sep 30, 2015
2015 Fall Science Colloquia
Frank van den Bosch (Yale University)
The Cold Dark Matter paradigm predicts that dark matter haloes are abound with substructure. A detailed characterization of dark matter subhalos is important for understanding the evolution of satellite galaxies, for modeling time-delays and flux-rat ...
Wednesday Oct 7, 2015
2015 Fall Science Colloquia
Remy Indebetouw (University or Viriginia; NRAO)
Wednesday Oct 14, 2015
2015 Fall Science Colloquia
Marc Pinsonneault (Ohio State University)
No description found.
Wednesday Oct 21, 2015
2015 Fall Science Colloquia
Caryl Gronwall (Pennsylvania State University)
No description found.
Wednesday Oct 28, 2015
2015 Fall Science Colloquia
Meg Urry, Caroline Hershel (Yale University)
Using multi-wavelength surveys like GOODS, COSMOS, and Stripe 82X, we measure the growth of supermassive black holes at the centers of galaxies over the last ~12 billion years. Most actively growing black holes are heavily obscured and thus are not s ...
Wednesday Nov 4, 2015
2015 Fall Science Colloquia
Veselin Kostov (GSFC)
No description found.
Wednesday Nov 11, 2015
2015 Fall Science Colloquia
Chris Johns-Krull (Rice University)
No description found.
Wednesday Nov 18, 2015
2015 Fall Science Colloquia
Mercedes Lopez-Morales (CfA Harvard)
As the search for new exoplanets continues, the new and exciting goal of unveiling their atmospheres is sparking a sea of questions and ideas. What are the atmospheres of these new worlds made of? What are their temperatures and pressures? Do they ...
Wednesday Dec 2, 2015
2015 Fall Science Colloquia
Karin Sandstrom (UCSD)
Wednesday Dec 9, 2015
2015 Fall Science Colloquia
Daryl Haggard (McGill University)
Sagittarius A* is the closest example of a supermassive black hole (SMBH) buried within a dense, massive stellar cluster. Sgr A* is more than 100 times closer than any other SMBH, and our proximity allows us to detect emission from its accretion flow ...
Tuesday Dec 15, 2015
2015 Fall Science Colloquia
Bob Mathieu (University of Wisconsin-Madison)
Our understanding of the evolution of single stars is one of the great intellectual accomplishments of the past century. Even so, from their beginnings cluster color-magnitude diagrams have shown many stars that do not lie along the main sequences an ...