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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3 Pith papers cite this work. Polarity classification is still indexing.
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New VLBA parallaxes for four masers refine the Perseus arm position and pitch angle in the first Galactic quadrant, with extrapolation showing intersection with the Sagittarius arm at 200° azimuth and 5.6 kpc radius.
Kinematic distances for 66 pulsars are computed from archival HI radial velocities using a modern Galactic rotation curve and show agreement with independent parallax measurements within 1 sigma for nearly all objects with both.
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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An updated model for the Perseus Spiral Arm from Trigonometric Parallax and 3-dimensional kinematic distances of distant massive stars
New VLBA parallaxes for four masers refine the Perseus arm position and pitch angle in the first Galactic quadrant, with extrapolation showing intersection with the Sagittarius arm at 200° azimuth and 5.6 kpc radius.
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Characterizing Pulsar Distances Using HI Kinematics
Kinematic distances for 66 pulsars are computed from archival HI radial velocities using a modern Galactic rotation curve and show agreement with independent parallax measurements within 1 sigma for nearly all objects with both.