WISE Green Objects WGOs : the massive star candidates in the whole Galactic Plane mid b mid <2^ circ by Chang Zhang et al. on Monday 21 November

Massive young stellar objects (MYSOs) play a crucial role in star formation.

Given that MYSOs were previously identified based on the extended structure and

the observational data for them is limited, screening the Wide-field Infrared

Survey Explorer (WISE) objects showing green features (for the common coding of

the 4.6 $\mu$m band as green channel in three-color composite WISE images) will

yield more MYSO candidates. Using WISE images in the whole Galactic Plane ($

0^\circ 60^\circ$. Matching results with various masers show that those three

groups of WGOs are at different evolutionary stages. After cross-matching WGOs

with published YSO survey catalogs, we infer that $\sim$50% of WGOs are samples

of newly discovered YSOs. In addition, 1260 WGOs are associated with Hi-GAL

sources, according to physical parameters estimated by spectral energy

distribution fitting, of which 231 are classified as robust MYSOs and 172 as

candidate MYSOs.

arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2211.10063v1