KELT-3b

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KELT-3b
KELT-3b (comparison).png
KELT-3b compared to Jupiter
Discovery
Discovered by Pepper et al. 2013
Discovery date2013
Transit
Orbital characteristics
0.04120 ± 0.00067 [1] AU
Eccentricity 0.202 [1]
2.7033902 d [1]
Inclination 84.25+0.67
−0.64° [1]
Star KELT-3
Physical characteristics
1.56±0.11RJ [2]
Mass 1.94±0.33MJ [2]
Temperature 2132±133 [3]

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

    Contents

    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. [3] 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. [4]

    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[ further explanation needed ] age. [1]

    References

    1. 1 2 3 4 5 Pepper, Joshua; Siverd, Robert J.; Beatty, Thomas G.; Gaudi, B. Scott; Stassun, Keivan G.; Eastman, Jason; Collins, Karen; Latham, David W.; Bieryla, Allyson; Buchhave, Lars A.; Jensen, Eric L. N. (2013-08-01). "KELT-3b: A Hot Jupiter Transiting a V = 9.8 Late-F Star". The Astrophysical Journal. 773 (1): 64. arXiv: 1211.1031 . Bibcode:2013ApJ...773...64P. doi:10.1088/0004-637X/773/1/64. ISSN   0004-637X. S2CID   14691090.
    2. 1 2 Stassun, Keivan G.; Collins, Karen A.; Gaudi, B. Scott (2017-03-01). "Accurate Empirical Radii and Masses of Planets and Their Host Stars with Gaia Parallaxes". The Astronomical Journal. 153 (3): 136. arXiv: 1609.04389 . Bibcode:2017AJ....153..136S. doi: 10.3847/1538-3881/aa5df3 . ISSN   0004-6256. S2CID   119219062.
    3. 1 2 Garhart, Emily; Deming, Drake; Mandell, Avi; Knutson, Heather A.; Wallack, Nicole; Burrows, Adam; Fortney, Jonathan J.; Hood, Callie; Seay, Christopher; Sing, David K.; Benneke, Björn (2020-04-01). "Statistical Characterization of Hot Jupiter Atmospheres Using Spitzer's Secondary Eclipses". The Astronomical Journal. 159 (4): 137. arXiv: 1901.07040 . Bibcode:2020AJ....159..137G. doi: 10.3847/1538-3881/ab6cff . hdl: 1983/cfa40930-a3fa-477f-abd9-c4937e03fdae . ISSN   0004-6256. S2CID   119209434.
    4. ↑ Alavi, S. A.; Rezaei, N. (2017-05-01). "Dirac equation, hydrogen atom spectrum and the Lamb shift in dynamical non-commutative spaces". Pramana. 88 (5): 77. arXiv: 1612.05942 . Bibcode:2017Prama..88...77A. doi:10.1007/s12043-017-1381-4. ISSN   0304-4289. S2CID   119588205.
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