What is the pan-survey SED forum?
What is the pan-survey SED forum?
The purpose of this forum is to provide a discussion platform to researchers at all levels - students, postdocs and faculty who are interested in state-of-the-art SED fitting techniques to improve their understanding of galaxy formation and evolution; enabling better science and building consensus on methods and approaches. We wish to do this by facilitating the communication between observers, theorists, and code developers. This will help make the most out of numerous spectroscopic, photometric and IFU surveys, improve techniques, foster collaborations, give a window of visibility to junior scientists, and create new ideas. In the era of JWST, similar discussions can be extended to multiple surveys and groups around the world.
Big Surveys
Kasia Malek - Rubin - 15 minutes
Will Hartley - Euclid - 15 minutes
John Moustakas - DESI- 15 minutes
Open discussion - 30+ minutes
All about AGN
September 13th - 11.00am-12.30 pm ET - Friday
Stephanie Juneau and Allison Kirkpatrick - Introduction - 25 minutes
Johannes Buchner - GRAHSP: Unbiased galaxy inference despite hosting a bright AGN - 15 minutes
Ivan Ezequiel Lopez - A tailored CIGALE module for Low-Luminosity AGN- 15 minutes
Open discussion - 30+ minutes
Application of AI/ML in inferring galaxy properties
May 20th - 12.00-1.30 pm ET - Monday
Shoubaneh Hemmati - Overview - 15 minutes
Sankalp Gilda -MIRKWOOD - 15 minutes
Yisheng Qiu- STARDUSTER (recorded talk) - 15 minutes
Open discussion - 30+ minutes
SED fitting with JWST data!
January 17th - 12.00-1.30 pm ET - Wednesday
Bingjie Wang - Stellar Population Modeling in the Era of JWST - 15 minutes
Rebecca Larson - SED Templates to Model the Earliest Galaxies - 15 minutes
Alex Cameron - What emission lines can (and can't) tell us about galaxies - 15 minutes
Open discussion - 30+ minutes
Techniques
data QC and calibration and modeling systematics, galaxy SED modeling and fitting, model & template libraries, inference of physical properties and photometric redshifts, combining photometry and spectroscopy, machine learning applied to emulating SEDs, performing inference and more etc.
Synergies between surveys and with ancillary data
Collaboration with teams working towards similar goals across current and upcoming surveys - see surveys part for more information
Observer-theorist collaborations
Facilitate both forward modeling and robust comparisons with theory predictions (including completeness, selection functions, and an understanding of observational systematics and uncertainties), test theoretical ideas with observations, interpret observations with theoretical models.
Data products, uniformity and standardization across surveys
Building and releasing catalogs for physical properties, SFHs, combining and contrasting results from multiple codes, etc. (also other questions like - how is photometry matched across bands, what do you mean by a total magnitude etc.)
Platform for ECR members
Provide a space for early-career researchers (grad students and postdocs) to make acquaintances with folks more established in the field, and showcase their science.
Platform for collaboration on proposals and papers
Science questions
Can we simultaneously relax all of the assumptions that we know to be unrealistic (single dust law, simplified SFH, single value of metallicity) and still get meaningful results? Can any SED parameters be considered robust without relaxing those assumptions?
Are current SED templates (including nebular emission line and PAH predictions) sufficiently accurate at wavelengths probed by JWST to enable SED-fitting of galaxies near and far through the observed mid-infrared?
What wavelength range(s) must be included to confidently identify the presence of AGN? What S/N is then needed to simultaneously fit for an AGN template while constraining typical star-formation-driven SED parameters?
Is it possible to simultaneously constrain star formation and metallicity histories, even if it requires spectrophotometry and some defensible assumptions about how they correlate?
How robust is the treatment (or, what are the highest-priority improvements needed) in modeling the different physical components of SEDs? including: stellar populations, dust emission and extinction, gas emission lines (incl nebular continuum) -- identify aspects that are currently well understood, as well as those that are top priority for improvement, especially in the JWST era.
What are the most robust SED diagnostics of evolutionary processes, and which are the highest priority to improve, incl: abundances (stellar, dust and gas), SFH parameterizations, and tracers that are sensitive to different evolutionary timescales?
There are different types of meetings with different goals we would like to cover, still maintaining a low frequency. The plan is to have 1-2 events per month. The calendar would be circulated and posted online so that people can always check what is coming. Each of these event will be one of the following:
Brainstorming session (agenda well defined, based on papers or upcoming proposals)
Science talks
Panel on a specific topic (5 mins intro talks from 3-4 speakers to state their viewpoints, and then open discussion)
Software demos
GatherTown or Wonderme informal gathering and mentoring opportunity
We will make every effort to set up these meetings at times as friendly as possible to different timezones
Join our slack channel to receive event updates!
Documents like the calendar, minutes, and videos will be hosted on the 'Events' tab of this webpage.