In support of its projects and the research community, IPAC sponsors and organizes talks, meetings, workshops, and conferences to facilitate community planning for future facilities; the exchange of scientific and technical knowledge; and the development of new ideas.
Explore IPAC supported events below.
Science Talk • 12:15 PM, March 15th, 2017 • MR LCR
Lurking in the Shadows: Long Period Gas Giant Planets as Tracers of Planet Formation // Over the past decade surveys using a variety of techniques have uncovered a diverse array of exoplanet systems. Many of these new systems are difficult to explain within the framework of standard planet formation theories, and have forced theorists and observers alike to re-evaluate their narratives for planet formation...
Science Talk • 12:15 PM, March 8th, 2017 • MR LCR
Science Talk • 12:15 PM, March 1st, 2017 • KS 410
In this talk, we describe the known characteristics of the TRAPPIST-1 system, and place the discovery in broader context, asking: how Earth-like are the seven planets and could they support life? We review advances in measurement and data analysis techniques that have made Spitzer the observatory best suited for long term monitoring of Earth-size planets around cool stars. Finally, we discuss IPAC’s work...
Science Talk • 12:15 PM, February 15th, 2017 • MR LCR
Insights into the high-redshift Universe using Spitzer and Local Galaxies // How do the first galaxies form? What is their connection to reionization? With today’s large samples of galaxies at z > 5, this is one of the burning question in modern astrophysics. Current spectrographs are not able to probe the spectral properties of the very first galaxies until the advent JWST. However, by combining deep Spitzer...
Science Talk • 12:15 PM, February 1st, 2017 • MR LCR
Exoplanet Genetics: What Host Star Chemical Abundances Reveal about Exoplanets // Through the process of star and planet formation, we think that the chemical abundances, or ``genes’’, of host stars are passed on to their orbiting planets. One prominent example of this is the giant planet-metallicity (iron abundance) correlation, but could other stellar ``genes’’ help explain the growing menagerie of...
Science Talk • 12:15 PM, January 25th, 2017 • MR LCR
// High Contrast Imaging of Exoplanetary Systems and the WFIRST Coronagraph (Part II) Lessons from post-processing studies and next steps // The coronagraph on the future space-based telescope WFIRST will reach raw contrasts up to 10^‐8‐ 10^‐9, enabling detection and characterization of dozens of giant exoplanets. The number of detected exoplanets will be limited by residuals speckles, uncorrected by the...
Science Talk • 12:15 PM, January 18th, 2017 • MR LCR
Post-processing techniques for high-contrast imaging & overview of the ALICE program // High-contrast imaging is a very powerful technique to study exoplanetary systems. By monitoring the outer regions of nearby stars, it enables to constrain long-period exoplanet demographics, and to study planetary system dynamics. Furthermore, by collecting photons directly coming from the planet, it is one of only two...
December 14th, 2016 • MR LCR
iLocater: Breaking the 1m/s RV precision barrier: Current radial velocity (RV) instruments for exoplanet science are seeing-limited in design. While previously vital to efficiently couple light into an instrument, these designs lead to multiple systematic errors which combined, pose challenges to overcome the 1m/s RV precision barrier which is required to detect Earth-like planets within the habitable-zone of...
November 30th, 2016 • MR LCR
Launched almost seven years ago, the WISE satellite continues to collect W1 and W2 images as part of the NEOWISE-Reactivation (NEOWISER) mission. I am leading an effort to repurpose NEOWISER exposures for science beyond the main belt, generating deep and time-resolved coadds which incorporate all W1 and W2 exposures ever acquired. These data products have wide-ranging applications, from brown dwarfs in...
November 2nd, 2016 • MR LCR
October 26th, 2016 • MR LCR
"The Past, Present, and Future of Planetary Systems" After four years of successful planet hunting, the Kepler spacecraft suffered a mechanical failure which ended its original mission and severely limited its ability to point precisely. However, Kepler is still able to point precisely at fields along the ecliptic plane for up to 80 days at a time in its new K2 extended mission. In this talk, I will...
October 16th - 22nd, 2016 • MR LCR
Pasadena Mayor Terry Tornek announced that a coalition of the world’s leading space science and astronomical institutions based in Pasadena are partnering to produce Astronomy Week, October 16-22, 2016. The week-long series of public events, open houses, lectures and other activities celebrates Pasadena’s rich history as an innovative “City of Astronomy.”
October 12th, 2016 • MR LCR
October 5th, 2016 • MR LCR
As small worlds tug gently on the stars around us, we are driven to build instruments that can discern the smallest stellar motions and reveal this population of planets. However, the path to extreme precision spectroscopy, required to detect Earth-like planets, is a difficult one that must be forged from technological and scientific discovery. Anchored by the success of HARPS, PARAS and other precision...
September 28th, 2016 • MR LCR
September 21st, 2016 • MR LCR
September 7th, 2016 • MR LCR
August 31st, 2016 • MR LCR
Sara Lindgren: Looking for companions to the coldest brown dwarfs using HST Abstract: Brown dwarfs populate an interesting parameter space between stars and planets. They have insufficient mass to sustain hydrogen fusion in their cores and, as a result, get cooler and fainter over time. Characterizing coeval companions provide unique opportunities to test brown dwarf cooling and atmospheric models, and...