Astronomy:KELT-3b
.png) KELT-3b compared to Jupiter | |
| Discovery | |
|---|---|
| Discovered by | Pepper et al. 2013 |
| Discovery date | 2013 |
| Transit | |
| Orbital characteristics | |
| 0.04120 ± 0.00067[1]AU | |
| Eccentricity | 0.202[1] |
| Orbital period | 2.7033902 d[1] |
| Inclination | 84.25+0.67 −0.64°[1] |
| Star | KELT-3 |
| Physical characteristics | |
| Mean radius | 1.56±0.11|♃|J}}}}}}[2] |
| Mass | 1.94±0.33|♃|J}}}}}}[2] |
| Physics | 2132±133[3] |
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.[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
- ↑ 1.0 1.1 1.2 1.3 1.4 Pepper, Joshua; Siverd, Robert J.; Beatty, Thomas G.; Gaudi, B. Scott; Stassun, Keivan G.; Eastman, Jason; Collins, Karen; Latham, David W. et al. (2013-08-01). "KELT-3b: A Hot Jupiter Transiting a V = 9.8 Late-F Star". The Astrophysical Journal 773 (1): 64. doi:10.1088/0004-637X/773/1/64. ISSN 0004-637X. Bibcode: 2013ApJ...773...64P. http://adsabs.harvard.edu/abs/2013ApJ...773...64P.
- ↑ 2.0 2.1 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. doi:10.3847/1538-3881/aa5df3. ISSN 0004-6256. Bibcode: 2017AJ....153..136S.
- ↑ 3.0 3.1 Garhart, Emily; Deming, Drake; Mandell, Avi; Knutson, Heather A.; Wallack, Nicole; Burrows, Adam; Fortney, Jonathan J.; Hood, Callie et al. (2020-04-01). "Statistical Characterization of Hot Jupiter Atmospheres Using Spitzer's Secondary Eclipses". The Astronomical Journal 159 (4): 137. doi:10.3847/1538-3881/ab6cff. ISSN 0004-6256. Bibcode: 2020AJ....159..137G.
- ↑ 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. doi:10.1007/s12043-017-1381-4. ISSN 0304-4289. Bibcode: 2017Prama..88...77A. http://adsabs.harvard.edu/abs/2017Prama..88...77A.
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