Ly-alpha Emission from Galaxy Formation

Seminar: TAC Seminars | November 16 | 12:10-1 p.m. | 544 Campbell Hall

Speaker/Performer: Claude-Andre Faucher-Giguere, Harvard

Sponsor: Astronomy, Department of

Astronomers have exquisite observations of both galaxies (by directly imaging their stars) and of the intergalactic medium (in absorption spectra of background sources). While we know that the galactic baryons must have been accreted from the IGM, we currently have virtually no direct observations of the galaxy assembly process itself. Contrary to the classical picture of galaxy...   More >

Tanya Urrutia (IPAC/Caltech): What dust-obscured quasars can tell us about quasar evolution

Seminar: RAL Seminars | November 16 | 3:10-4 p.m. | 544 Campbell Hall

Speaker/Performer: Tanya Urrutia, IPAC / Caltech

Sponsor: Radio Astronomy Lab

I will present results on a multiwavelength campaign to identify the nature of dust-reddened Type 1 quasars. These quasars were selected by matching FIRST radio sources, 2MASS point sources and very red optical counterparts with r'-K > 5. Most of these objects have fairly compact radio morphologies and fall into the radio-intermediate regime. The majority also show flat radio...   More >

Cosmological Constraints Using Multi-Wavelength Observations of Galaxy Clusters

Seminar: Cosmology Seminars | November 17 | 1:10-2 p.m. | 544 Campbell Hall

Speaker/Performer: Eli Rykoff, UCSB

Sponsor: Astronomy, Department of

Galaxy clusters, as the largest peaks in the cosmic density field, play an important role in astrophysics and cosmology. They are remarkable objects: massive, dynamic, and rich in observables. Accurate determination of cluster scaling relations and cosmological parameters such as sigma_8 and omega_m requires large samples of uniformly observed clusters. The SDSS maxBCG catalog is a...   More >

LGBT Science Reception

Social Event | November 17 | 6-8 p.m. | 775 Tan Hall

Sponsor: Chemistry, College of

For: Lesbian, Gay, Bisexual, and Transgender students, faculty, staff, alumni in science, engineering + technology and their partners and allies

The interaction of photosynthesis with the crust and mantle and the effect of the moon-forming impact on the current Earth

Colloquium: Astronomy Colloquia | November 19 | 4:10-5 p.m. | 2 LeConte Hall

Speaker/Performer: Norm Sleep, Stanford

Sponsor: Astronomy, Department of

Photosynthesis evolved before 3.8 billion years ago. Rocks of that
age include metamorphosed black shales with pyrite showing that
sulfur based and iron based photosynthesis existed. A complete carbon
cycle existed on land and at sea. The land biota needed FeO to dump
oxygen. A consortium with efficient weathering evolved to obtain the
FeO from exposed rocks. Weathering in...   More >

Physics Graduate Student Social Hour

Social Event | August 28, 2009 – December 28, 2012 every Friday | 5-7 p.m. | LeConte Hall, 375 - Helmholz Room

Sponsor: Graduate Assembly

Graduate students, staff, and faculty from any department are invited to this weekly event held by the Physics Graduate Student Association as a forum for informal networking and communication between scientists and science enthusiasts from all career levels. Come by for a relaxing atmosphere with delicious refreshments usually sponsored by the GA.

Maryam Modjaz: Cosmic Fireworks: The Explosive Deaths of Massive Stars

Lecture | November 21 | 11 a.m.-12 p.m. | 100 Genetics & Plant Biology Bldg.

Speaker: Maryam Modjaz, UC Berkeley

Sponsors: Astronomy, Department of, Science@Cal

Maryam Modjaz, Miller Fellow in the Department of Astronomy, gives a talk about the explosive deaths of massive stars as supernovae and gamma ray bursts.

Target audience: General Public

Open to audience: All Audiences