LINCC Tech Talk on June 12 @ 10am PT: PhotoD with the LSST: stellar distances out to the edge of Halo

Dear all,

I hope you will join us for the June LINCC Tech Talk session that will take place on Thursday, June 12, at 10h PT = 13h ET = 13h CLT = 19h CET on Zoom (https://ls.st/lincc-talks ). We will hear from Lovro Palaversa, who will talk about stellar distances with LSST using the photoD code.

PhotoD with the LSST: stellar distances out to the edge of Halo

As demonstrated with the Sloan Digital Sky Survey (SDSS), Pan-STARRS, and most recently with Gaia data, broadband near-UV to near-IR stellar photometry can be used to estimate distance, metallicity, and interstellar dust extinction along the line of sight for stars in the Galaxy. Anticipating photometric catalogs with tens of billions of stars from Rubin’s Legacy Survey of Space and Time (LSST), we developed a Bayesian model and pipeline that build on previous work, can handle LSST-sized datasets and deliver stellar distance estimations all the way to the edge of the Galactic stellar halo. In this LINCC Tech Talk I’ll give a brief description of the physical background of the model and focus on the technical & implementation aspects of the photoD code, particularly those bits where our recent LINCC Frameworks Incubator grant made the largest impact.

LINCC Tech Talks are held on the second Thursday of every month. Events are also advertised at our web page and also provided in calendar form ; and the #lincc-tech-talks LSSTC Slack channel is always available for discussions before, during, and after the talks.