About SAG15:
The SAG15 study is led by Daniel Apai (University of Arizona). The SAG15 team is charged with studying high-level science questions that can be answered by direct imaging studies of exoplanets and identifying the type and quality of data these studies require. The SAG15 study does not focus on any particular telescope architecture or observational method, but on the fundamental science questions.
SAG15 Report: SAG15 Report, June 18, 2017
Status Update
SAG15 Status Summary / EXOPAG 2017 Winter
SAG15 Report Drafts:
SAG15 Report Draft, June 17, 2017
SAG15 Report Draft, May 3, 2017 (Near-final version – please send comments by May 10)
SAG15 Report Draft, April 27, 2017 (High resolution)
SAG15 Report Draft, April 26, 2017
SAG15 Report Draft, April 14, 2017 (High-res figures)
SAG15 Report Draft, April 4, 2017
SAG15 Report Draft, January 2, 2017
SAG15 Report Draft, 2nd December 15, 2016
SAG15 Report Draft, December 15, 2016
SAG15 Draft Report, December 14, 2016
SAG15 Draft Report, November 15
SAG15 Report, Advanced Draft, Oct 11
Versions below typeset in Pages:
SAG15_Report Draft_High Level Science Question – June 11, 2nd
SAG15_Report Draft_High Level Science Questions – June 11
SAG15 Report Draft High Level Science Questions – May 30
SAG15 Report Draft High Level Science Questions – May 29
SAG15 Report Draft High Level Science Questions – May 28
SAG15 Report Draft High Level Science Questions – May 9
SAG15 Report Draft High Level Science Questions – April 25
SAG15_Report Draft_High Level Science Questions – April 5
SAG15_Report Draft_Report_Feb5-2016
SAG15 Telecon Slides and Telecon summaries:
SAG15_Telecon3_Minutes (April 6, 2016)
SAG15 Telecon 2 slides (Apai, March 2, 2016) SAG15 Telecon 2 Minutes
SAG15 Telecon 1 (Dec 2015) SAG15 Telecon 1 Minutes
SAG15 Supporting Documents:
ADS Library for SAG15-related publications
Link to ESA Phase 0 Studies for M4 Cosmic Vision Candidate Missions
The Future of Exoplanet Research
By Daniel Apai Includes interview with Nick Siegler and Shawn Domagal-Goldman Over the weekend, at the Hilton on the San Diego Bay, a small group met to speak about the present and future of NASA's Exoplanet Exploration program. To someone not in the field of...
Meteorites: Time Capsules of the Solar System
Just before 4 a.m. on June 2, Arizona’s night sky seemed to momentarily catch fire. A meteor, about 5-feet across, burned through the atmosphere at 40,200 mph, according to NASA estimates. The small debris that reached the Earth’s surface are called meteorites, and...
Dust grains, frogs, and the formation of habitable planets
The Sun’s planetary system, like the many other systems discovered in the last 2 decades, formed out of a protoplanetary disk. These disks are a natural by-product of star formation (almost every young star has one) and consist of a lot of gas (mostly hydrogen) and a...
Hubble Directly Measures Rotation of Cloudy ‘Super-Jupiter’
Astronomers using NASA's Hubble Space Telescope have measured the rotation rate of an extreme exoplanet by observing the varied brightness in its atmosphere. This is the first measurement of the rotation of a massive exoplanet using direct imaging. "The result is very...
The curious case of KIC 8462852
The curious case of KIC 8462852 by Theodora Karalidi Discovering the first planet, other than our Earth, that hosts life is one of the holy grails of astronomy. This is a difficult task since planets that could host life are pretty small compared to their...
Exoplanets around Red Dwarf Stars
Exoplanets around Red Dwarf Stars by Gijs Mulders Since the discovery in 1995 of the first exoplanet over two-thousand exoplanets have been discovered. Most exoplanets, such as those discovered by the Kepler spacecraft, orbit stars similar in mass to the sun....
First Results From the Scorpion Planet Survey
By Kevin Wagner Searching for planets outside of our own solar system is one of the great challenges in modern astronomy. The problem consists of measuring the brightness of a planet that is more than a million times fainter than its host star, while being so close to...
Exoplanets, Cats, and Telescopes: Ben and Min at the Vatican Advanced Technology Telescope
We, Min Fang and Ben Rackham, are on a five-night observing run at the Vatican Advanced Technology Telescope (VATT), where we are collecting spectra of young stars. This post gives some of the highlights of our trip so far. The VATT is located in southeastern Arizona...
Gijs Mulders’ “Preferred Hosts for Short-Period Exoplanets” highlighted by AAS NOVA
Preferred Hosts for Short-Period Exoplanets In an effort to learn more about how planets form around their host stars, a team of scientists has analyzed the population of Kepler-discovered exoplanet candidates, looking for trends in where they’re found. Since its...
EOS Scientists Discover Elegant Spiral Arms in Planet-forming Disk
Link to the UA Press Release on the discovery