Summer meeting: face to face science working group meetings? (in place of face-to-face meeting)
Work from Science Working groups and scientists needs to be done over the summer, particularly from faculty members
Exoplanet working group for summer meeting overview
Discuss finalizing exoplanet science case with key exoplanet science members
Planetary System Formation
Member(s) from this group will work to organize this.
ACTION:Klaus Pontoppidan will talk with this group to see who is interested in working to help organize this group for the summer meetings
With support from STDT budget, suggest separating into science subgroups (as opposed to full STDT meeting) to refine science cases and simulations for what Concept 2 will do for science, or statistics simulation, need robust design reference mission for final report
Proposed meeting format should be three meetings with six members per group
Proposed meeting dates are June 2018, July 2019, or August 2018
Margaret Meixner proposed to draft a work assignment for group members, with management team guidance, to help establish and ensure the design reference mission is clear so readers can see that the science can be accomplished by this observatory
Gary Melnick added that OST needs to show that main selling points of observatory, scientifically, can be carried out in a reasonable fraction of time assuming reasonable overhead with enough time left over for GO programs
Outreach projects – Battersby & Kataria
Exoplanets and galaxies are highest priorties for making communities aware of OST capabilties
Jonathan Fortney will organize something for exoplanets for September 2018, and galaxies for about eight months from now
Jonathan Fortney hasn't begun organizing for this yet
Lee Armus added that we can begin organizing group meetings that highlight the great impact of having facility class observatories in space
Kartik J. Sheth suggested scheduleing these in the fall 2018. Kartik J. Sheth added that this is important given the constraint of congressional appropriations
White papers for exoplanet groups
Should have individual working groups coordinate white papers for the deadline
Duncan: Far-IR white paper status, have had some discussions on how to provide input. Should discuss how to coordinate white paper activities with OST
Duncan will brainstorm best approach to accomplish coordination of white papers across OST
White papers are two pages, and should focus on GO program science capabilies for OST
Lee Armus suggested allowing the community have freedom and flexability with respect to submitting and drafting white papers. Should also have a good list of seriously interested people who are signing up to do this
Speakers bureau colloquium (will be included in the STDT budget)
Proposed date is fall 2018
Will have strawman talk in a couple of weeks
Should begin calling people in May 2018
Martina Wiedner OST conference on September 4-7, 2018 in Oxford, England for mobilizing european community on all science for OST
JWST scheudle review on March 13-14, 2018 will give us a better date for launch. A couple people from U.S may be able to attend
Science for concept 2 – followup on action items (Cooray)
Discussed how to incorporate/merge science theme for local volume galaxies into science
How did we get here? Bergin/Melnick/Pontoppidan/Milam
Klaus to consider a 250 hour program with OSS+FTS and heterodyne vs. OSS+FTS+etalon for disk only. Report March 9th.
Need a criteria to decide go, no-go for coronagraph in MISC. Even if contrast not significant over JWST
How does the universe work? Pope/Armus/Battersby/Sandstrom
Technical requirements should need to be reflected into science cases/themes
Technical requirement gaps
Protostellar..case - will help to an give idea of dynamic range necessary
Magnetic field and turbulence case - will help with identifying polarization
Galaxy feedback case - spectral lines of contuniumm over large areas for linear mapping
Will write up these cases for Concept 2, explain what we can do in roughly 200 hours and include this in the design reference mission
Asantha Cooray asked for clarification on the protostellar acretion, what theme will this be included for? Theme 1 and 2 seem too. Protostellar case is more flexable for any theme. Protostellar acretion may be for the water trail theme
Kartik J. Sheth added that protostellar acreition is a key part of the water trail theme (theme two).
Gary Melnick mentioned that protostellar acretion should go with water trail, because acretion is about how material is being moved and observed. The magnetic field turbulence belongs with star formation
A science case currently for mapping magnetic field and turbulence in the milky way. STDT doesn't think there is a strong case for mapping entire disks of galaxies in polarization. Inclined to stick to science case for polarization
STDT provided example using SPICA approach, looking at galaxy acitvity to understand star formation on molecular cloud scale, and observing near by galaxies vs. farther galaxies in a single beam. Resolution scale for galaxies is something that should be considered with respect to star formation.
ACTION: STDT to discuss and determine what key topics will be discussed for each theme.
ACTION: Margaret Meixner will refine the estimate for percentage of efficiency that can be done with 2000 hours in one year.
2000 hours per theme. 70% efficiency is equal to 1 year of observation.
Margaret Meixner added that for Concept 2, we have to shrink down mission from Conept 1, and need to identify top three priority science cases and capabilties. These things/tasks will survive through descoping needs to be done, to meet the required budget. It is important to understand high priority science vs. minimum science. Need to assess what to keep that can be used for the observatory
Gary Melnick added that the three current themes are top level motivations for doing astronomy. OST is conginzant of these goals. Spitzer was sold on its ability to answer a finite number of important questions, hoping that someone reading about it or researching it finds something intereting. OST should drive to meet the presedence of sucess in keeping goals at high level, important and focused.
Exoplanet working group engaged with MISC instrument team to settle on reasonable/acheievable contrast for Concept 2
Itsuki Sakon sent updated values suggesting that 10 to the minus 5 contrast may be reachable.
Need feeback from management team to move forward with including coronograph for Concept 2
Etalon/Hero Sensitivity Calculation Update
High quality HD and water spectra of about 20 disks in 250 hours is possible
Meeting Summary/Key Outcomes
ACTION: Incoporporate prostellar acretion into theme 2 (water trail)
ACTION: Other science cases will be incoroporated in the GO program
Study Center update (Leisawitz) (Some study center update details may not be listed below. Contact David Leisawitz and Ruth Carter for specific details pertaining to the study center update that may have been missed or not included here)