Distances to molecular clouds in the second Galactic quadrant

نویسندگان

چکیده

We present distances to 76 medium-sized molecular clouds and an extra large-scale one in the second Galactic quadrant ($104.75^\circ <l<150.25^\circ $ $|b|<5.25^\circ$), 73 of which are accurately measured for first time. Molecular cloud samples drawn from $l$-$b$-$V$ space ($-95 < V_{\rm LSR}< 25$ \kms) with density-based spatial clustering applications noise (DBSCAN) algorithm, background-eliminated extinction-parallax (BEEP) method using extinctions Gaia DR2 parallaxes. The range is 211 2631 pc, appears be a coherent structure at about 1 kpc, across 40\deg\ ($\sim$700 pc) longitude.

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ژورنال

عنوان ژورنال: Astronomy and Astrophysics

سال: 2021

ISSN: ['0004-6361', '1432-0746']

DOI: https://doi.org/10.1051/0004-6361/202039768