exoatmosphere

== English == === Etymology 1 === From exo- +‎ atmosphere. ==== Noun ==== exoatmosphere (plural exoatmospheres) The region of space just outside the atmosphere proper; the outer atmosphere. ===== Coordinate terms ===== exosphere ===== Derived terms ===== exoatmospheric ===== Related terms ===== endoatmosphere === Etymology 2 === Blend of exoplanet +‎ atmosphere. ==== Noun ==== exoatmosphere (plural exoatmospheres) Abbreviation of exoplanetary atmosphere (“the atmosphere of an exoplanet”). 2016; E. Aronson, P. Waldén; "Using near-infrared spectroscopy for characterization of transiting exoplanets", Astronomy & Astrophysics, Volume 578, DOI 10.1051/0004-6361/201424058; BIBCODE 2015A&A...578A.133A; arXiv: 1504.05223; The feasibility of exoatmosphere detection by transit observations has been demonstrated by several authors. 2015; Michael D. Lemonick, "The Dawn of Distant Skies", Exoplanets: Worlds Without End, Scientific American, pmid:23821863; →ISBN Marcy, Mayor and their colleagues had seen only the gravitational effect the planets had on their parent star; to detect a biosignature, you would need to image an exoatmosphere directly. 2009; P. Rojo, J. Harrington, D. Deming, J. Fortney; "Transit Spectroscopy of the Extrasolar Planet HD 209458b", Bioastronomy 2007: Molecules, Microbes and Extraterrestrial Life ASP Conference Series, Vol. 420, Proceedings, Astronomical Society of the Pacific, BIBCODE 2009ASPC..420..321R This technique uses the fact that the area a transiting planet blocks from its host star varies with wavelength according to the unique spectral features of molecules in the exoatmosphere, allowing identification and abundance measurements from appropriately-timed observations ===== Derived terms ===== exoatmospheric