Catherine Zucker edited figures/Candid1_pos_pos/caption.tex  about 9 years ago

Commit id: e2a92626d1f4f49301f7300cd5403792cc572388

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Plane of the sky map integrated between 55-75 km/s, the approximate velocity range of the Scutum-Centaurus arm in the region around BC\_26.94-0.30. The black dashed line indicates the location of the physical galactic midplane, while the solid black lines indicate $\pm$ 20 pc from the galactic midplane at the 4.5 kpc distance to BC\_26.94-0.30, assuming the candidate is associated with the \citet{Dame_2011} Scutum-Centaurus model.  A trace of BC\_26.94-0.30, as it would appear as a mid-IR extinction feature, is superimposed on the CO emission map. The correlation between BC\_26.94-0.30's mid-IR extinction feature and the Scutum-Centaurus's arm most intense CO emission hints that BC\_26.94-0.30 may be a spine of Scutum as traced by lower density CO gas