{"schema":"hottub-news/story/v1","story":"st_2fz57x3qqokubtwpq5aa","title":"Trigonometric Parallaxes of Maser Sources toward the Far Side of the Milky Way","title_en":null,"outlets":1,"brief":null,"page":"https://hottub.news/stories/trigonometric-parallaxes-of-maser-sources-toward-the-far-side-of-the-2fz57x3qqo","count":1,"items":[{"id":"n_2fz57x3qqokubtwpq5aa","seq":608078,"kind":"research","title":"Trigonometric Parallaxes of Maser Sources toward the Far Side of the Milky Way","url":"https://arxiv.org/abs/2609.34219","summary":"arXiv:2609.34219v1 Announce Type: new Abstract: We present trigonometric parallaxes and proper motions for eight maser sources associated with high-mass star-forming regions. Four 22 GHz H$_2$O masers and four 6.7 GHz CH$_3$OH masers were observed over eight epochs between 2024 and 2025. Combining parallax, proper-motion, and radial-velocity information, we determine distances and spiral-arm assignments for these sources. The newly measured far-side masers extend the known…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ga"],"authors":["Z. H. Lin, Y. Xu, M. Reid, J. J. Li, S. B. Bian"],"entities":[{"id":"Q1752705","name":"Milky Way","type":"place"}],"story":"st_2fz57x3qqokubtwpq5aa","category":"science-technology","category_p":0.6600000262260437,"sentiment":"neutral","tone":-0.05999999865889549,"political":0.14000000059604645}]}