2015/08/27 by R. A. Street, A. Udalski, S. Calchi Novati +118 · 2 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Disc #Galactic Center #Galactic halo #Galactic plane #Milky Way #Neptune #Parallax #Planet #Stellar, planetary, and galactic studies #astro-ph.EP
paper · pdf · doi:10.3847/0004-637x/819/2/93
28 pages, 3 figures, 2 tables, submitted to ApJ
arxiv created 2015/08/27 · openalex publication_date 2016/03/02 · arxiv updated 2016/03/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
ABSTRACT We report the detection of a cold Neptune m planet = 21 ± 2 M ⊕ orbiting a 0.38 M ⊙ M dwarf lying 2.5–3.3 kpc toward the Galactic center as part of a campaign combining ground-based and Spitzer observations to measure the Galactic distribution of planets. This is the first time that the complex real-time protocols described by Yee et al., which aim to maximize planet sensitivity while maintaining sample integrity, have been carried out in practice. Multiple survey and follow up teams successfully combined their efforts within the framework of these protocols to detect this planet. This is the second planet in the Spitzer Galactic distribution sample. Both are in the near to mid-disk and are clearly not in the Galactic bulge.