| 词条 | NGTS-3Ab |
| 释义 |
OverviewNGTS-3Ab was discovered in 2018 by the use of transit method. It is the only planet orbiting around NGTS-3 A, a G6 V class star, situated in the constellation of Columba in 3294 light years from the Sun. The exoplanet orbits its star in about 2 terrestrial days. The orbit is closer to the star than the internal limit of the habitable zone. It has a low density and can be composed of gas. It has a low Earth similarity index (0.06) and should be very different from our planet.[3] DiscoveryThe discovery of NGTS-3Ab, a hot Jupiter found orbiting a star in a still visually unresolved binary system, was announced in June 2018. The data regarding the exoplanet is based on the data gathered with the Next Generation Transit Survey (NGTS), SPECULOOS, and HARPS, and enhanced by recent advances with the centroiding technique for NGTS.[2] The planetary system NGTS-3A was detected by a conjointly model multi-colour photometry, centroids and radial velocity (RV) extraction process. RV cross-correlation functions (CCFs) and study correlations of the bisector inverse span (BIS) are simulated in order to define the characteristics of the exoplanet NGTS-3Ab.[2][4] See also
Further reading
References1. ^{{Cite web|url=https://exoplanets.nasa.gov/newworldsatlas/6305/ngts-3-a-b/|title=NGTS-3 A b {{!}} New World Atlas - Exoplanet Exploration: Planets Beyond our Solar System|website=Exoplanet Exploration: Planets Beyond our Solar System|access-date=2018-07-03}} {{Exoplanet search projects}}{{2018 in space}}2. ^1 2 {{Cite journal|last=Günther|first=Maximilian N.|last2=Queloz|first2=Didier|last3=Gillen|first3=Edward|last4=Delrez|first4=Laetitia|last5=Bouchy|first5=Francois|last6=McCormac|first6=James|last7=Smalley|first7=Barry|last8=Almleaky|first8=Yaseen|last9=Armstrong|first9=David J.|date=2018-08-21|title=Unmasking the hidden NGTS-3Ab: a hot Jupiter in an unresolved binary system|arxiv=1805.01378|journal=Monthly Notices of the Royal Astronomical Society|volume=478|issue=4|pages=4720–4737|doi=10.1093/mnras/sty1193|issn=0035-8711|bibcode=2018MNRAS.478.4720G}} 3. ^{{Cite web|url=http://exoplorer.org/en/exoplanets/ngts-3-a-b|title=Exoplorer: ngts-3-a-b|last=Telechev|first=Anton|website=exoplorer.org|language=en|access-date=2018-07-03}} 4. ^{{Cite web|url=https://exoplanetarchive.ipac.caltech.edu/cgi-bin/DisplayOverview/nph-DisplayOverview?objname=NGTS-3+A+b&type=CONFIRMED_PLANET|title=NGTS-3 A b|website=exoplanetarchive.ipac.caltech.edu|language=en|access-date=2018-07-03}} 3 : Transiting exoplanets|Exoplanets discovered in 2018|Columba (constellation) |
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