How the Group Works in Practice

The astrophysics group emphasizes collaboration, openness, and mutual support. This guide elaborates on how we interact, how members are encouraged to take initiative, and how to navigate constraints. It focuses on norms and expectations. Administrative rules and procedures are further documented for members on our FAQ page and questions can be addressed to our staff.

How We Interact: The Daily and Weekly Rhythm

We create at least one shared venue per day for scientific interaction. Whether it's Astro Coffee in the morning, an informal seminar, or just lunch together after the 11am event, there's always an opportunity to talk, learn, and collaborate. Everyone takes a turn hosting coffee or other events — it's a great way to get to know the group. 

Typical structure during the academic term (September-December and February-May)

• Events are organized for 11am every weekday: Tuesday Colloquium, Thursday Informal seminar, other days have Astro coffee / journal club.
• Whenever possible, we have lunch together after the 11am event and go to afternoon tea at 3pm. 

The purpose of these activities is to encourage interaction, integrate new members and visitors, and lower barriers to discussion. You can view upcoming events on our calendar and events page.

Astro Coffee

Astro coffee runs most days (MWF) in the Astro Library and uses a sign-up sheet. Members, long-term visitors, and faculty are expected to run coffee sessions during the term. Responsibility rotates and the format is intentionally flexible.

Expectations

• Discussion and interaction are the priority.
• Coffee is not primarily a venue for formal talks although visitors are usually given the opportunity to make short presentations.
• The entire astro group should periodically discuss among themselves how to improve the format, especially to better integrate visitors.
• Hosts are expected to be proactive in managing the time for presentations, ensuring visitor talks are kept short so they do not take up the full hour and the discussion focus is maintained.

Seminars and Colloquia

Both colloquia and informal seminars are organized by a small group of members, rotating yearly. Colloquia are hosted by IAS in the fall and by Princeton University in the spring. The group of organizers gathers input from the full group, selects speakers, sets the schedule, and sends invitations. Logistics are handled by staff.

Members are encouraged to suggest speakers and topics for both seminars and colloquia. Members, especially first-year members, are also encouraged to give informal seminars.

Taking Initiative

Member-Led Activities

Over the years, members have organized small focused workshops, topic-specific or weekly discussion sessions, ad-hoc reading groups, yearly astrophysics retreats, etc. All ideas are welcome. We will try to make things happen.

Collaborators, Students, and Short Visits

Members regularly invite collaborators, sometimes host visiting students, and organize short visits. These activities are encouraged and valued. Discuss plans early so they fit well with space, timing, and logistics.

Hosting Speakers and IAS Visitors

Members host speakers for dinners and help set up schedules during visits. Making visitors feel welcome is important. Responsibility for hosting should be shared across the group, not limited to seminar organizers. Visitors are part of the intellectual and mentorship ecosystem.

Bahcall Lunch

The Bahcall Lunch takes place after the Tuesday colloquium. It includes short presentations by postdocs, faculty and visitors to the broader Princeton astrophysics community. IAS and Princeton faculty rotate responsibility for scheduling.

Expectations

Members should be proactive in trying to schedule a presentation when arriving, when they have new results or when they want broader exposure. 

Boundaries and Support

Travel and Presence at IAS

Travel is important, but being constantly away from IAS is not ideal. Local interactions often lead to deeper collaborations. Members have a travel budget. In special cases, travel budgets can be exceeded. This requires discussion with faculty.

Constraints and How to Navigate Them

There is an overall budget and real constraints (staff capacity, IAS-wide policies, and School traditions). All initiatives require some discussion, but our goal is to support intellectually interesting activities as much as possible. 

Default approach:

• Talk to the faculty early
• Understand constraints (talk to staff, review FAQ)
• Try to find workable solutions

Mentoring

Every member is assigned a faculty mentor. There are two scheduled mentoring meetings per year. These meetings provide a baseline for guidance and check-ins, but they are a minimum, not a ceiling. Details

Expectations

• Members are encouraged to talk to their mentor informally at any time.
• Conversations can cover science, career planning, or general questions about life at IAS.
• Mentoring is not limited to the assigned mentor; members are welcome to seek advice from any faculty member.
• Visitors and senior members are also part of the mentorship ecosystem.

Flexibility

• If a mentoring arrangement is not working well, members are encouraged to say so.
• Reassignments can be discussed and adjusted.
• The goal is effective support, not formality.

Computing Resources 

Computing resources in astrophysics are shared resources. Queues and access policies are intentionally set up with relatively flexible constraints to enable a wide range of work.

Norms and Expectations

Resource availability naturally fluctuates: There are times when capacity is abundant. There are times when resources are more constrained. Members are expected to be considerate of others’ use of shared resources. 

If resource usage becomes tight, members are encouraged to: 

• Communicate directly with each other. 
• Coordinate usage informally. 
• Adjust timing when possible.

Communication and Escalation

If someone appears to be unintentionally monopolizing resources, it is appropriate to reach out and discuss. Issues that cannot be resolved informally can always be escalated to the SNS computing staff or the faculty. The goal is coordination and fairness.

Raising Issues and Improving How We Function

If there are issues with group functioning, formats, rules, or norms, members are encouraged to bring them up with the faculty. The goal is improvement, not compliance.