KELT-3b

{{Infobox planet

|name=KELT-3b

|star=KELT-3

|discovery_method=Transit

|eccentricity=0.202

|mass=1.94{{±|0.33}}{{Jupiter mass|link=y}}

|mean_radius=1.56{{±|0.11}}{{Jupiter radius|link=y}}

|single_temperature=2132{{±|133}}

|semimajor=0.04120 ± 0.00067AU

|inclination={{val|84.25|+0.67|-0.64}}°

|discovered=2013

|discoverer=Pepper et al. 2013

|period=2.7033902 d

|density=

|image=File:KELT-3b (comparison).png|caption=KELT-3b compared to Jupiter}}

KELT-3b is an extrasolar planet orbiting the F-type main-sequence star KELT-3 690 light years in the zodiac constellation Leo. It was discovered in 2013 by KELT's telescope in Arizona.

Properties

This planet has 44% more mass than Jupiter, but has expanded to 1.34 times the radius of the latter. It has a temperature of 1,811 K, which gives it a Hot Jupiter class. KELT-3b has a lower density than Jupiter, and completes a revolution in less in 3 days. This corresponds with an orbital distance of 0.04 AU, which is 10 times closer than Mercury (planet) orbits the Sun.

The planetary equilibrium temperature is 1829{{±|42}} K, but measured temperature is hotter at 2132{{±|133}} K. The radiation of the moderately active host star KELT-3 do not produce a detectable ionization and consequent Lyman-alpha line emission in the atmosphere of the KELT-3b.

Discovery

KELT-3b was discovered in 2013. The light curves and parameters of both the planet and the star were observed. The paper also states that there is uncertainty about the system’s{{explain|date=May 2022}} age.

References

{{Reflist|refs=

{{Cite journal|last1=Stassun|first1=Keivan G.|last2=Collins|first2=Karen A.|last3=Gaudi|first3=B. Scott|date=2017-03-01|title=Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes|journal=The Astronomical Journal|volume=153|issue=3 |pages=136|doi=10.3847/1538-3881/aa5df3|issn=0004-6256|arxiv=1609.04389|bibcode=2017AJ....153..136S |s2cid=119219062 |doi-access=free }}

{{Cite journal|last1=Pepper|first1=Joshua|last2=Siverd|first2=Robert J.|last3=Beatty|first3=Thomas G.|last4=Gaudi|first4=B. Scott|last5=Stassun|first5=Keivan G.|last6=Eastman|first6=Jason|last7=Collins|first7=Karen|last8=Latham|first8=David W.|last9=Bieryla|first9=Allyson|last10=Buchhave|first10=Lars A.|last11=Jensen|first11=Eric L. N.|date=2013-08-01|title=KELT-3b: A Hot Jupiter Transiting a V = 9.8 Late-F Star|url=http://adsabs.harvard.edu/abs/2013ApJ...773...64P|journal=The Astrophysical Journal|volume=773|issue=1 |pages=64|doi=10.1088/0004-637X/773/1/64|issn=0004-637X|arxiv=1211.1031|bibcode=2013ApJ...773...64P |s2cid=14691090 }}

{{Cite journal|last1=Garhart|first1=Emily|last2=Deming|first2=Drake|last3=Mandell|first3=Avi|last4=Knutson|first4=Heather A.|last5=Wallack|first5=Nicole|last6=Burrows|first6=Adam|last7=Fortney|first7=Jonathan J.|last8=Hood|first8=Callie|last9=Seay|first9=Christopher|last10=Sing|first10=David K.|last11=Benneke|first11=Björn|date=2020-04-01|title=Statistical Characterization of Hot Jupiter Atmospheres Using Spitzer's Secondary Eclipses|journal=The Astronomical Journal|volume=159|issue=4 |pages=137|doi=10.3847/1538-3881/ab6cff|arxiv=1901.07040 |bibcode=2020AJ....159..137G |issn=0004-6256|hdl=1983/cfa40930-a3fa-477f-abd9-c4937e03fdae|s2cid=119209434 |hdl-access=free |doi-access=free }}

{{Cite journal|last1=Alavi|first1=S. A.|last2=Rezaei|first2=N.|date=2017-05-01|title=Dirac equation, hydrogen atom spectrum and the Lamb shift in dynamical non-commutative spaces|url=http://adsabs.harvard.edu/abs/2017Prama..88...77A|journal=Pramana|volume=88|issue=5 |pages=77|doi=10.1007/s12043-017-1381-4|issn=0304-4289|arxiv=1612.05942|bibcode=2017Prama..88...77A |s2cid=119588205 }}

}}

Category:Exoplanets discovered in 2012

Category:Exoplanets discovered by KELT

Category:Hot Jupiters

Category:Leo (constellation)