Image Details

Choose export citation format:

Mapping the Milky Way in 5D with 170 Million Stars

  • Authors: Joshua S. Speagle, 佳士 沈, Catherine Zucker, Ana Bonaca, Phillip A. Cargile, Benjamin D. Johnson, Angus Beane, Charlie Conroy, Douglas P. Finkbeiner, Gregory M. Green, Harshil M. Kamdar, Rohan Naidu, Hans-Walter Rix, Edward F. Schlafly, Aaron Dotter, Gwendolyn Eadie, Daniel J. Eisenstein, Alyssa A. Goodman, Jiwon Jesse Han, Andrew K. Saydjari, Yuan-Sen Ting, 源森 丁, Ioana A. Zelko

Joshua S. Speagle et al 2024 The Astrophysical Journal 970 .

  • Provider: AAS Journals

Caption: Figure 10.

As Figure 9, but now comparing the median distances from this work with those derived from Gaia DR2 parallaxes only from BJ18 (left) and from Gaia EDR3 parallaxes from BJ21 without (middle) and with (right) Gaia photometry. The most common (i.e., likely) associated value in Augustus-Gold given a value from BJ18 or BJ21 (i.e., y given x) is shown as a solid red line, and the most common associated value from BJ18 or BJ21 given Augustus-Gold (i.e., x given y) is shown as a solid orange line. The 1:1 relationship is overplotted as a dashed black curve. Estimated distances from all three catalogs are in excellent agreement with those derived here for stars within a few kiloparsecs using only the parallax and agree out to further distances when also considering the BJ21 estimates that also incorporate information from photometry. Disagreements at larger distances compared to the parallax-only estimates generally arise due to stronger distance constraints from photometry overwhelming the distance estimates for objects with low parallax S/Ns where the Galactic prior tends to dominate the inference. As with A19, this work prefers sources to be slightly closer than in BJ18 and BJ21.

Other Images in This Article

Show More

Copyright and Terms & Conditions

Additional terms of reuse