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The Galaxy and resolved stellar populations

The Galaxy and resolved stellar populations. Basílio Xavier Santiago Instituto de Física da UFRGS Laboratório Interinstitucional de e-Astronomia. Laboratório Interinstitucional de e-Astronomia inauguration workshop Observatório Nacional Rio de Janeiro, January 2011.

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The Galaxy and resolved stellar populations

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  1. The Galaxy and resolved stellar populations Basílio Xavier Santiago Instituto de Física da UFRGS Laboratório Interinstitucional de e-Astronomia Laboratório Interinstitucional de e-Astronomia inauguration workshop Observatório Nacional Rio de Janeiro, January 2011

  2. Forecast on DES star counts 2

  3. Paper history and status • Submitted on October 6th 2010 – doc db 4855 • Referee report on November 4th 2010 • Revised and resubmitted on January 4th 2011 • Waiting for 2nd referee report • Major changes: discussion on star-gal separation, supression of section on GC tidal tails, separate section on Trilegal kinematics, revisions to text

  4. DC5 reports • June 2010: Dark Energy Survey Data Challenge 5 - 1st report – assessment of photometry, astrometry and proper motions in DC5A and DC5B doc-db DES-doc-4919 • October 2010: Dark Energy Survey Data Challenge 5 - 2nd report – photometry on DC5B data quality tiles, solution to proper motions bug, star-galaxy separation (on DC5B2) doc-db DES-doc-4909 4

  5. Star-galaxy separation 6

  6. Contribution to DC6Stars truth table • Plan circulated to Data Challenge group (Aug 5th): Galactic stars (with AddStar), globular cluster (plus tidal tail) and a MW satellite • 1st version of DC6 stellar truth table sent to des-sim (Sep 18th) • Small corrections made (Sep 22nd ) 7

  7. MW + GC + dSph All DC6 stars put together GC and dSph: r < 26 MW: r < 24.6 8 By Huan Lin

  8. DC6 truth table:validation plots Galactic stars proper motions Globular Cluster CMDs 9

  9. By Eduardo Balbinot 10

  10. By Eduardo Balbinot 11

  11. On-going or future action • To perfect AddStar and fully integrate AddClus, Sparse, FindSat pipelines to Brazil portal. • Improve star-galaxy separation at faint mag levels • Assess the efficiency of an object classification based on PDFs • Understand the selection function of new MW clusters and satellites • Continue to run PRAIA on DC images and incorporate it to Brazil Portal. • Implement a photometric parallax code • Contribute with stars and to star-galaxy messing up in BCC 13

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