Astronomy Colloquia

Get ready for the James Webb Space Telescope

Speaker: 
Chris Willott (Herzberg Institute of Astrophysics)
Event Date and Time: 
Mon, 2017-11-20 15:00 - 16:15
Location: 
Hennings 318
Local Contact: 
Jaymie Matthews
Intended Audience: 
Graduate

The James Webb Space Telescope (JWST) is currently in its final phase of integration and scheduled for launch in the spring of 2019, with science operations to commence six months later. Equipped with four powerful science instruments, JWST will provide imaging and spectroscopy from 0.6 to 28 microns through numerous observing modes specifically designed to tackle of wide range of scientific investigations, from studying planets and moons of our Solar system, detecting the faintest galaxies in the early universe to probing the thin atmosphere of exoplanets transiting nearby bright stars.

EASTER MONDAY - NO ASTRONOMY COLLOQUIUM

Event Date and Time: 
Mon, 2018-04-02 15:30 - 16:45
Location: 
Hennings 318

UBC READING WEEK - NO ASTRONOMY COLLOQUIUM

Event Date and Time: 
Mon, 2018-02-19 15:30 - 16:45
Location: 
Hennings 318

BC FAMILY DAY - NO ASTRONOMY COLLOQUIUM

Event Date and Time: 
Mon, 2018-02-12 15:30 - 16:45
Location: 
Hennings 318

The Pluto system as revealed by New Horizons

Speaker: 
Kelsi Singer (SouthWest Research Institute)
Event Date and Time: 
Mon, 2018-02-26 15:30 - 16:45
Location: 
Hennings 318
Local Contact: 
Jaymie Matthews
Intended Audience: 
Graduate
In July of 2015 the New Horizons spacecraft flew through the Pluto system, completing humanity's reconnaissance of the classical planets. Pluto turned out to be a world of remarkable geologic diversity, and its terrains display a range of ages, suggesting geologic activity of various forms has persisted for much of Pluto's history. Pluto's atmosphere was found to be more compact, and with lower escape rates, than previously predicted. Hi-phase images looking back at Pluto's atmosphere led to the discovery of numerous haze layers.

Galaxies in the Early Universe: The view from the newest observations with Spitzer, ALMA and HST

Speaker: 
Andreas Faisst (Caltech/IPAC)
Event Date and Time: 
Mon, 2017-11-27 15:00 - 16:15
Location: 
Hennings 318
Local Contact: 
Jaymie Matthews
Intended Audience: 
Graduate
Less than 1 billion year after the Big Bang (< 8% of today's age of the Universe), the cosmic star formation rate and stellar mass density of galaxies increased by more than one order of magnitude, a gradient steeper than at any other time. Hence it is expected that galaxies during this early rapid growth phase show significantly different spatial and physical properties compared to galaxies at later times. I present how observations with Spitzer, the Atacama Large Millimeter Array (ALMA), and the HST help us to study and understand this important corner-stone phase of galaxy evolution.

REMEMBRANCE DAY OBSERVANCE - NO ASTRONOMY COLLOQUIUM

Event Date and Time: 
Mon, 2017-11-13 15:30 - 16:45
Location: 
Hennings 318

Exploring planetary systems orbiting cool dwarfs

Speaker: 
Courtney Dressing (Berkeley)
Event Date and Time: 
Mon, 2017-11-06 15:00 - 16:15
Location: 
Hennings 318
Local Contact: 
Jaymie Matthews
Intended Audience: 
Graduate
Over the past twenty years, ground- and space-based investigations have revealed that our galaxy is teeming with planetary systems and that Earth-sized planets are common. Although Earth-size planets within the habitable zones of Sun-like stars are challenging to detect, potentially habitable planets orbiting low-mass dwarfs are more amenable to detection due to their deeper transit depths, larger radial velocity semi-amplitudes, increased likelihoods of transit, and shorter orbital periods.

Unraveling the Chemical Evolution of Galaxies Beyond the Milky Way with Integrated Light Spectroscopy of Globular Clusters

Speaker: 
Charli Sakari (University of Washington)
Event Date and Time: 
Mon, 2017-10-30 15:00 - 16:15
Location: 
Hennings 318
Local Contact: 
Jaymie Matthews
Intended Audience: 
Graduate

A universal understanding of galaxy formation requires observations of galaxies beyond the Milky Way. Although individual stars in distant galaxies are too faint for high-resolution spectroscopy, globular clusters (GCs) can be studied through integrated light (IL) s pectroscopy. Since GCs are expected to trace the properties of their host galaxies, distant clusters can be utilized in lieu of resolved stars to investigate the assembly histories of their hosts.

Interstellar Dust at Low Metallicity

Speaker: 
Karin Sandstrom (UC San Diego)
Event Date and Time: 
Mon, 2017-10-23 15:30 - 16:45
Location: 
DIFFERENT ROOM: Hennings 301
Local Contact: 
Jaymie Matthews
Intended Audience: 
Graduate

Dust plays critical roles in many of the processes occurring in the interstellar medium and dust’s infrared emission serves as a tracer for the ISM and star formation from the nearby universe out to high redshift. While most of our knowledge of dust is built from observations of the local area of the Milky Way, it is clear that dust properties change dramatically in low metallicity conditions which may be prevalent at high redshift and in nearby dwarf galaxies.

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