paragraph_text: Unatoč implikaciji riječi "praznina", Fultonova praznina zapravo ne predstavlja raspon radijusa koji u potpunosti nedostaju u promatranoj populaciji egzoplaneta, već niz radijusa koji se čine relativno neobičnim.Fulton, Benjamin J.; Petigura, Erik A.; Howard, Andrew W.; Isaacson, Howard; Marcy, Geoffrey W.; Cargile, Phillip A.; Hebb, Leslie; Weiss, Lauren M.; Johnson, John Asher; Morton, Timothy D.; Sinukoff, Evan; Crossfield, Ian J. M.; Hirsch, Lea A. (2017-08-24). "The California-KeplerSurvey. III. A Gap in the Radius Distribution of Small Planets". The Astronomical Journal. American Astronomical Society. 154 (3): 109. arXiv:<span class="cs1-lock-free" title="Freely accessible">[//arxiv.org/abs/1703.10375 1703.10375]</span>. doi:10.3847/1538-3881/aa80eb. ISSN&nbsp;[//www.worldcat.org/issn/1538-3881 1538-3881].</cite> Kao rezultat toga, "dolina" se često koristi umjesto "praznine".Van Eylen, V; Agentoft, Camilla; Lundkvist, M S; Kjeldsen, H; Owen, J E; Fulton, B J; Petigura, E; Snellen, I (2018-07-06). "An asteroseismic view of the radius valley: stripped cores, not born rocky". Monthly Notices of the Royal Astronomical Society. Oxford University Press (OUP). 479 (4): 4786–4795. arXiv:<span class="cs1-lock-free" title="Freely accessible">[//arxiv.org/abs/1710.05398 1710.05398]</span>. doi:10.1093/mnras/sty1783. ISSN&nbsp;[//www.worldcat.org/issn/0035-8711 0035-8711].</cite>Armstrong, David J.; Meru, Farzana; Bayliss, Daniel; Kennedy, Grant M.; Veras, Dimitri (2019-07-17). "A Gap in the Mass Distribution for Warm Neptune and Terrestrial Planets". The Astrophysical Journal. American Astronomical Society. 880 (1): L1. doi:<span class="cs1-lock-free" title="Freely accessible">10.3847/2041-8213/ab2ba2</span>. ISSN&nbsp;[//www.worldcat.org/issn/2041-8213 2041-8213].</cite>Owen, James E.; Wu, Yanqin (2017-09-20). "The Evaporation Valley in the Kepler Planets". The Astrophysical Journal. American Astronomical Society. 847 (1): 29. arXiv:<span class="cs1-lock-free" title="Freely accessible">[//arxiv.org/abs/1705.10810 1705.10810]</span>. doi:10.3847/1538-4357/aa890a. ISSN&nbsp;[//www.worldcat.org/issn/1538-4357 1538-4357].</cite> Specifični izraz "Fultonova praznina" nazvan je po Benjaminu J. Fultonu, čija je doktorska disertacija uključivala precizna mjerenja radijusa koja su potvrdila oskudicu planeta između 1,5 i 2 Zemljina polumjera, za što je dobio nagradu Robert J. Trumpler,Lopez, Eric D.; Fortney, Jonathan J.; Miller, Neil (2012-11-21). "HOW THERMAL EVOLUTION AND MASS-LOSS SCULPT POPULATIONS OF SUPER-EARTHS AND SUB-NEPTUNES: APPLICATION TO THE KEPLER-11 SYSTEM AND BEYOND". The Astrophysical Journal. IOP Publishing. 761 (1): 59. doi:<span class="cs1-lock-free" title="Freely accessible">10.1088/0004-637x/761/1/59</span>. ISSN&nbsp;[//www.worldcat.org/issn/0004-637X 0004-637X].</cite> i 2013.Owen, James E.; Wu, Yanqin (2013-09-12). "KEPLERPLANETS: A TALE OF EVAPORATION". The Astrophysical Journal. IOP Publishing. 775 (2): 105. arXiv:<span class="cs1-lock-free" title="Freely accessible">[//arxiv.org/abs/1303.3899 1303.3899]</span>. doi:10.1088/0004-637x/775/2/105. ISSN&nbsp;[//www.worldcat.org/issn/0004-637X 0004-637X].</cite>