IPAC Space Sciences Seminars

Bernhard Schulz (Caltech/IPAC-Herschel) -- The Herschel-SPIRE Point Source Catalog

IPAC Space Sciences Seminar • 12:15 PM, May 17th, 2017 • MR LCR

The Herschel-SPIRE instrument mapped about 8% of the sky in Submillimeter broad-band filters centered at 250, 350, and 500 microns (1199, 857, 600 GHz) with spatial resolutions of 17.9”, 24.2”, 35.4” respectively. In total, we used the 6878 standard configuration scan maps that are available, including calibration observations. The SPIRE Point Source Catalog contains the result of a systematic and homogeneous source...

Thayne Currie (NAOJ/Subaru Telescope)

IPAC Space Sciences Seminar • 12:15 PM, May 3rd, 2017 • Morrisroe LCR

Title: "The Design, Early Direct Imaging Science, and Future Developments with SCExAO" Abstract: SCExAO is an extreme adaptive optics system recently commissioned and available for open use on the 8.2m Subaru Telescope on Maunakea. In this brief talk, I summarize the architecture of SCExAO (wavefront control, coronagraphy) and science instruments currently in use and planned for use in the near future. SCExAO's...

Jessie Christiansen (IPAC)

IPAC Space Sciences Seminar • 10:20 AM, April 19th, 2017

Lin Yan --- Exploring Extragalactic Mid-IR Transients Using WISE data -- A case study of ULIRG F01004-2237

IPAC Space Sciences Seminar • 12:15 PM, April 12th, 2017

Tidal Disruption Events are mostly detected by optical transient surveys and usually among quiescent early type galaxies. I will discuss how mid-IR, time series photometries from WISE survey can be used to study these fascinating transient events. I will present the results from one case study of a TDE candidate in ULIRG F01004-2237.

Melanie Simet (JPL)

IPAC Space Sciences Seminar • 12:15 PM, March 22nd, 2017 • MR LCR

TBD.

Marta Bryan (Caltech/GPS)

IPAC Space Sciences Seminar • 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 and...

Bahram Mobasher (University of California Riverside)

IPAC Space Sciences Seminar • 12:15 PM, March 8th, 2017 • MR LCR

TBD.

The TRAPPIST-1 System: Seven Earths Around an Ultracool Dwarf Star

IPAC Space Sciences Seminar • 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 to create...

Vanessa Bailey (KIPAC/Stanford)

IPAC Space Sciences Seminar • 12:15 PM, February 22nd, 2017 • MR LCR

TBD.

Andreas Faisst (Caltech/IPAC)

IPAC Space Sciences Seminar • 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 data with...

Johanna Teske (Carnegie Observatories)

IPAC Space Sciences Seminar • 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 exoplanets?...

Marie Ygouf (Caltech/IPAC-WFIRST)

IPAC Space Sciences Seminar • 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 hardware. If...

Elodie Choquet (JPL)

IPAC Space Sciences Seminar • 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 techniques...

Jean-Philippe Beaulieu

IPAC Space Sciences Seminar • 12:00 AM, October 19th, 2016 • MR LCR

TBD.