Page History
Ways to Participate:
In Person Attendance:
- Monday, January 9, 2023
- 1:00 PM - 3:00 PM
- Room 304, Seattle Convention Center
Synchronous Attendance:
- AAS241 Registration is not Required
- https://bluejeans.com/796078941/0478
- 0478
Asynchronous Attendance:
- Recording Links to be posted here. https://cloudproject.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=a5e3d1dd-c2bd-4309-8000-af8d012d0283
Schedule of Presentations:
Speaker | Description | Duration | Start Time (US Pacific Time) | End Time (US Pacific Time) |
---|---|---|---|---|
Welcome | 5 min | 13:00 | 13:05 | |
Roman Project Scientist | Roman Project Status & UpdatesAbstract TBD | 10 min + 5 min | 13:05 | 13:20 |
NASA Postdoctoral Fellow | Yields from large-area, HST-resolution Galaxy Surveys in the Unresolved regimeAbstract TBD | 10 min + 5 min | 13:20 | 13:35 |
Professor of Physics & Astronomy | Galaxy Zoo: Morphology from Large SurveysThe Galaxy Zoo project (www.galaxyzoo.org) has provided quantitative visual morphologies for over a million galaxies (including the entire SDSS Main Galaxy Sample, all public HST surveys, UKIDSS, and most recently DECaLS and some HSC surveys) via online crowdsourcing. The most recent version of Galaxy Zoo combines machine learning techniques with crowdsourcing to leverage the best of both techniques for the next generation of large imaging surveys. The morphology of a galaxy provides information on the orbits of stars within it. As such, important clues to the formation history of galaxies is revealed by their morphologies, and this information is complimentary, but not identical to, their star formation history and chemical composition as revealed by photometry and spectra. Obtaining reliable morphologies for large samples of galaxies is challenging, but useful. In allows for statistical studies of the galaxy population, finding rare objects, and placing unusual classes of galaxies in context. The quantitative morphological information collected by Galaxy Zoo has shown itself to be a powerful database for studying galaxy evolution, and Galaxy Zoo continues to collect classifications - we either make use of public imaging, or we work with imaging/survey teams to collaborate to generate morphologies for their data. The GZ team also has experience running a variety of spin-off projects hosted by the Zooniverse (www.zooniverse.org). I will review how we obtain reliable morphologies from Galaxy Zoo, highlight some of the results from the last 15 years of the project and finish with some comment on what we might gain from a "Galaxy Zoo: Roman". | 10 min + 5 min | 13:35 | 13:50 |
Assistant Professor of Physics | Exploring Dwarf Galaxy Mergers & Groups: Moving beyond the Local GroupAbstract TBD | 10 min + 5 min | 13:50 | 14:05 |
Assistant Research Scientist | Roman’s Survey of Stellar Halos Using the FOGGIE SimulationsOver the next decade, the astronomical community will be deploying a number of instruments that will revolutionize our understanding of stellar halos. The Nancy Grace Roman Space Telescope, in particular, will combine extreme sensitivity with a wide field-of-view to become a powerful tool for studying the stellar halos of external galaxies. In this presentation, I will show brand new results from the FOGGIE (Figuring Out Gas & Galaxies In Enzo) cosmological simulations aimed at making predictions for Roman’s survey of the stellar halos of nearby galaxies. The FOGGIE suite consists of zoom-in simulations of six Milky Way analogues in which resolution has been enhanced in the gas surrounding the central halo (the circumgalactic medium) and in the old stellar populations that typically make up stellar halos. This enables the simulations to better capture the quenching of dwarf galaxies as they are accreted, as well as the stellar substructure that their tidal destruction produces. I use the high-resolution FOGGIE simulations to “observe” the stellar halos of Milky Way-like galaxies at the same sensitivity and resolution as Roman will. I will explore the origins of these stellar halos and discuss Roman's prospects for disentangling the properties of the individual dwarf galaxies that created them. | 10 min + 5 min | 14:05 | 14:20 |
Short Break | 5 min | 14:20 | 14:25 | |
Andreea Petric, Jonathan Hargis, Rachael Beaton Science Operations Center for the Roman Space Telescope at STScI | Discussion on Science Community Preparations for Roman ScienceThe following discussion prompts will be used:
| 20 min | 14:25 | 14:45 |
Closing | 5 min | 14:45 | 14:50 |
Other Roman Content at AAS241:
STScI Events Listing: Roman at the 241st American Astronomical Society
- This Splinter Session in the AAS241 Block Schedule
Back to Roman at AAS Home