{"schema":"hottub-news/story/v1","story":"st_xycskwvwlgh7rwd5atsa","title":"Metal-poor Brown Dwarf Kinematics from JWST NIRSpec Spectroscopy","title_en":null,"outlets":1,"brief":null,"page":"https://hottub.news/stories/metal-poor-brown-dwarf-kinematics-from-jwst-nirspec-spectroscopy-xycskwvwlg","count":1,"items":[{"id":"n_xycskwvwlgh7rwd5atsa","seq":608209,"kind":"research","title":"Metal-poor Brown Dwarf Kinematics from JWST NIRSpec Spectroscopy","url":"https://arxiv.org/abs/2609.28746","summary":"arXiv:2609.28746v2 Announce Type: replace Abstract: Galactic archaeology relies on stellar kinematics and chemical abundances to identify various stellar populations and associations. With JWST, Galactic archaeology of ancient metal-poor brown dwarfs is now possible through high-sensitivity, medium-resolution spectroscopy. We present the first metal-poor brown dwarf radial velocity (RV) survey using JWST/NIRSpec G395H spectra ($\\lambda/\\Delta\\lambda \\sim$ 3,000) for a sample…","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.sr","astro-ph.ep","astro-ph.ga"],"authors":["Chih-Chun Hsu, Christopher A. Theissen, Adam J. Burgasser, Adam C. Schneider…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_xycskwvwlgh7rwd5atsa","category":"science-technology","category_p":0.4300000071525574,"category2":"arts-culture-entertainment","sentiment":"neutral","tone":0.07000000029802322,"political":0.019999999552965164}]}