VLBI astrometry gives a 20.2 kpc distance and 872 pc height for G040.96+02.48, confirming a warp in the Extreme Outer Galaxy with unusual outward motion.
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New CO(2-1) observations of 112 clumps in outer Galactic clouds (14-23 kpc) yield velocity dispersion-size and mass-size power laws plus a declining virial parameter trend indicating most clumps are gravitationally unbound.
The Galactic Center Lobe is a foreground HII region at ~2 kpc, photoionized and forming a closed outer loop, not a Galactic center feature.
NE2025 refits the thick disk, thin disk, and spiral arms of the NE2001 model and adds refined clumps, delivering 20 times better median pulsar distance accuracy and 100 percent better scattering predictions than NE2001.
citing papers explorer
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East Asian VLBI Network astrometry toward the star-forming region G040.96+02.48 in the Extreme Outer Galaxy
VLBI astrometry gives a 20.2 kpc distance and 872 pc height for G040.96+02.48, confirming a warp in the Extreme Outer Galaxy with unusual outward motion.
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Molecular Clouds at the Edge of the Galaxy II. Physical properties and scaling relations
New CO(2-1) observations of 112 clumps in outer Galactic clouds (14-23 kpc) yield velocity dispersion-size and mass-size power laws plus a declining virial parameter trend indicating most clumps are gravitationally unbound.
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SDSS-V LVM: Verifying what, and where, the 'Galactic Center' Lobe is
The Galactic Center Lobe is a foreground HII region at ~2 kpc, photoionized and forming a closed outer loop, not a Galactic center feature.
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NE2025: An Updated Electron Density Model for the Galactic Interstellar Medium
NE2025 refits the thick disk, thin disk, and spiral arms of the NE2001 model and adds refined clumps, delivering 20 times better median pulsar distance accuracy and 100 percent better scattering predictions than NE2001.