Can I read The Milky Way Project: Probing Star Formation with First Results on Yellowballs from DR2 on EtoBox?

The Milky Way Project: Probing Star Formation with First Results on Yellowballs from DR2 by Wolf-Chase, Grace; Kerton, C. R.; Devine, Kathryn; Pouydal, Anupa; Mori, Johanna; Trujillo, Leonardo; Cossairt, Aurora; Schoultz, Sarah; Jayasinghe, Tharindu; Povich, Matthew is a scholarly article available to read on EtoBox.

What is The Milky Way Project: Probing Star Formation with First Results on Yellowballs from DR2 about?

Yellowballs (YBs) were first discovered during the Milky Way Project citizen-science initiative (MWP; Simpson et al. 2012). MWP users noticed compact, yellow regions in Spitzer Space Telescope mid-infrared (MIR) images of the Milky Way plane and asked professional astronomers to explain these "yellow balls." Follow-up work by Kerton et al. (2015) determined that YBs likely trace compact photo-dissociation regions associated with massive and intermediate-mass star formation. YBs were included as target objects in a version of the Milky Way Project launched in 2016 (Jayasinghe et al. 2016), which produced a listing of over 6000 YB locations. We have measured distances, cross-match associations, physical properties, and MIR colors of ~500 YBs within a pilot region covering the l= 30 - 40 degrees, b= +/- 1 degree region of the Galactic plane. We find 20-30% of YBs in our pilot region contain high-mass star formation capable of becoming expanding H II regions that produce MIR bubbles. A majority of YBs represent intermediate-mass star-forming regions whose placement in evolutionary diagrams suggest they are still actively accreting, and may be precursors to optically-revealed Herbig Ae/

Author

Wolf-Chase, Grace; Kerton, C. R.; Devine, Kathryn; Pouydal, Anupa; Mori, Johanna; Trujillo, Leonardo; Cossairt, Aurora; Schoultz, Sarah; Jayasinghe, Tharindu; Povich, Matthew

Published

2021

Language

EN