2024 Summer Collaboration Meeting

31 Jul 2024, 06:00 → 2 Aug 2024, 14:30 America/Chicago

National Center for Supercomputing Applications (NCSA)

Felipe Menanteau (University of Illinois at Urbana-Champaign), Jeff McMahon (University of Chicago; FNAL), Colin Bischoff (University of Cincinnati), Lindsey Bleem (Argonne National Laboratory & KICP)

The CMB-S4 2024 Summer Collaboration Meeting will focus on the path forward for CMB-S4 in light of NSF's decision to decline entry into the Major Facilities Design Stage, at this time, and the need to focus a Chile-only configuration. 

We will also address the work needed to complete the second edition of the Science Book. 

The goals for this meeting include:

• Collect and discuss information related to two main themes
  • Get status updates from ongoing and well-established planned experiments
  • Discuss the status and plans for the development of the all Chile option:
    Instrument configuration, scan strategy, capabilities, risk management, etc.
• Discuss the implications of the all Chile configuration on all science cases and consider the optimization of all science goals. 
• Continue to make progress on the Science Book Second Edition.
• Discuss and process the new path forward.
   

Registration details for in person attendance

Code of conduct

Wednesday, 31 July

08:30 → 09:00 Coffee and Bagels

09:00 → 10:45 Plenary: Opening Session

Convener: Felipe Menanteau (University of Illinois at Urbana-Champaign)

09:00 Welcome to NCSA

Speaker: Prof. Joaquin Vieira

09:10 Meeting Goals

Speaker: Jeff McMahon (University of Chicago; FNAL)

09:25 Project Report- Status and Path Forward

Speakers: Jim Strait (Lawrence Berkeley National Laboratory;), John Carlstrom (University of Chicago;Argonne National Laboratory)

09:55 CMB-S4 Science Program

This block will feature a short overview talk of the new CMB-S4 science book chapters and several short presentations highlighting new science cases developed since the last edition of the science book.

10:25 Discussion

10:45 → 11:15 Coffee Break

11:15 → 13:00 Plenary: Updates from the CMB Community - Ground Based Experiments

Convener: Prof. Colin Bischoff (University of Cincinnati)

11:15 Atacama Cosmology Telescope

11:32 South Pole Telescope

Speaker: Srinivasan Raghunathan (NCSA)

11:49 Cosmology Large Angular Scale Surveyor (CLASS)

Speaker: Tobias Marriage (Johns Hopkins University)

12:06 BICEP / Keck

12:23 Simons Observatory

13:00 → 14:00 Lunch

14:00 → 14:40 Plenary: Updates from the CMB Community - Space Based Experiments

Convener: Lindsey Bleem (Argonne National Laboratory & KICP)

14:00 LiteBIRD

14:17 Future Satellite Missions

Speaker: Charles Lawrence (JPL)

14:40 → 15:25 Plenary: Discussion of CMB-S4 strategy in context

Conveners: Jim Strait (Lawrence Berkeley National Laboratory;), John Carlstrom (University of Chicago;Argonne National Laboratory)

15:25 → 15:55 Coffee break

15:55 → 17:45 Plenary: Overview of Chile-only instrument and r-forecasting

Conveners: John Carlstrom (University of Chicago;Argonne National Laboratory), John Ruhl (Case Western Reserve University)

15:55 Overview [John Carlstrom]

• Strategy
• Update from AoA Study for Alt 3 from July revision
• Overview of plan for tomorrow’s parallel sessions

Speaker: John Carlstrom (University of Chicago;Argonne National Laboratory)

16:05 SAT & LAT Designs and Considerations [John Ruhl]

• Overview of “aggressive” SAT optical design
• List of potential SAT systematics and studies to address them
• LAT design choices, pros and cons
• Plan for and Items to work on at tomorrow’s parallel session

Speaker: John Ruhl (Case Western Reserve University)

16:20 Efficacy of rotating 1/2 wave plates in Chile [tbc]

• Lessons from prior deployments
• Simons Observatory Design and experience to date
• Items for tomorrow’s parallel session #1

16:30 Efficacy of Variable-delay Polarization Modulator in Chile [Toby Marriage]

• Overview
• Lessons learned from CLASS
• Potential for CMB-S4, other methods?

Speaker: Tobias Marriage (Johns Hopkins University)

16:40 Temperature and Polarization Anisotropy of the Atmosphere [Anna Coerver]

• Characterization and mitigation strategies
• Site comparisons

Speaker: Anna Coerver (UC Berkeley)

16:55 Chile r-forecasting: Foregrounds models [Susan Clark and Brandon Hensley]

• Review of the three foreground models

Speakers: Brandon Hensley (Princeton University), Susan Clark (Stanford University)

17:05 Chile r forecasting: Sky area selection and scan strategy [Sara Simon]

• CMB-S4 plans; SO plans; Overlap with BICEP/Keck

Speaker: Dr Sara Simon (Fermilab)

17:15 Chile r-forecasting: Delensing and map based validation [tbc]

• Delensing forecasts; map validation; freq band allocation

17:25 Chile r-forecasting: r-forecasting and map based validation [Colin Bischoff]

• Overview of methodologies, current results
• Work needed
• Plan for tomorrow’s r-forecasting parallel session

Speaker: Prof. Colin Bischoff (University of Cincinnati)

17:45 → 18:00 JSAC: Fireslides

Convener: Dr Sara Simon (Fermilab)

18:00 → 20:00 Taco Bar Dinner at Analog Wine Library

https://analogwines.square.site/

Thursday, 1 August

08:30 → 09:00 Coffee and Bagels

09:00 → 09:45 Plenary: Collaboration Committee Updates

Convener: Jeff McMahon (University of Chicago; FNAL)

09:45 → 11:15 EDI Plenary: Advancing Science Through Inclusion by Dr Kartik Sheth

Convener: Felipe Menanteau (University of Illinois at Urbana-Champaign)

09:45 Advancing Science Through Inclusion

Speaker: Dr Kartik Sheth (NASA)

10:45 Q&A with Dr Kartik Sheth

Speaker: Kartik Sheth (NASA)

11:15 → 11:45 Coffee break

11:45 → 12:30 Breakouts: Chile-only configuration

11:45 Chile r forecasting: How to improve & validate r-forecasts [Conveners tbc]

• De-lensing validation
• Map based validation
• Optimizing band allocation on SATs and delensing LATs
• Inclusion of potential systematics

11:45 → 12:30 Breakouts: Coordinating Chapter Interfaces in Science Book

Convener: Joel Meyers (Southern Methodist University;)

12:30 → 13:30 Junior Lunch with the GB Rep

12:30 → 13:30 Lunch

13:30 → 14:30 Breakouts: Chile Configeration Continued

13:30 Chile SAT Design and Considerations [Conveners: John Kovac and Jeff McMahon]

• Beating the Systematics
• • Potential SAT systematics and studies to address them
• Beating the atmosphere
• • atmospheric“sky” noise mitigation
• • polarized atmosphere mitigation impact on design, site studies

Speakers: Jeff McMahon (University of Chicago; FNAL), John Kovac (Harvard University;Center for Astrophysics | Harvard & Smithsonian)

13:30 → 14:30 Breakouts: Science Book : Chapter goals and timelines

14:30 → 15:00 Coffee break

15:00 → 16:45 JSAC: Early Career Plenary Talks

18:00 → 19:00 Astronomy on Tap with Abigail Vieregg

19:00 → 21:00 Dinner

Dinner on your own in Urbana

Friday, 2 August

08:30 → 09:00 Coffee and Bagels

09:00 → 10:00 Plenary: Report Back from Breakouts

Conveners: Prof. Colin Bischoff (University of Cincinnati), Lindsey Bleem (Argonne National Laboratory & KICP)

10:00 → 11:00 Breakouts: Chile-only Configuration

10:00 Discussion / Follow-up from previous breakouts [Conveners: John Ruhl / John Carlstrom]

• Plans for next steps

Speakers: John Carlstrom (University of Chicago;Argonne National Laboratory), John Ruhl (Case Western Reserve University)

10:00 → 11:00 Breakouts: Science Book : Open work time

10:00 → 11:00 Coffee break

11:00 → 11:30 Plenary: Proposal Q& A with DOE

11:00 Q&A with DOE Program Managers Kathy Turner and Bryan Field

Dr. Turner and Dr. Field have agreed to a Q&A session to answer questions regarding funding/career opportunities in DOE/DOE labs in light of the recent developments with CMB-S4. We especially want to make sure junior collaboration member voices are heard. Live Q&A will be open to all audience members, but if you’d like to ask your question in advance, please enter it in this google form.

Q&A question google form

11:30 → 12:00 Plenary: Closeout

12:00 → 13:30 Lunch