HD 141399
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Boötes |
| Right ascension | 15h 46m 53.8132s[2] |
| Declination | 46° 59′ 10.543″[2] |
| Apparent magnitude (V) | 7.20 |
| Characteristics | |
| Evolutionary stage | main-sequence star |
| Spectral type | K0 |
| B−V color index | 0.73±0.04[3] |
| Astrometry | |
| Radial velocity (Rv) | -21.9±0.2[2] km/s |
| Proper motion (μ) | RA: -108.119[2] mas/yr Dec.: 6.040[2] mas/yr |
| Parallax (π) | 26.9888±0.0146 mas[2] |
| Distance | 120.85 ± 0.07 ly (37.05 ± 0.02 pc) |
| Absolute magnitude (MV) | 4.4[4] |
| Details | |
| Mass | 1.09±0.08[5] M☉ |
| Radius | 1.46±0.15[6] R☉ |
| Luminosity | 1.59±0.39[6] L☉ |
| Surface gravity (log g) | 4.24±0.05[5] cgs |
| Temperature | 5602±34[5] K |
| Metallicity [Fe/H] | 0.36±0.03[5] dex |
| Rotation | 49±12[3] |
| Rotational velocity (v sin i) | 2.9±1.0[3] km/s |
| Age | 7.23[7] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 141399 is a K-type main-sequence star 121 light-years away in the constellation of Boötes. Its surface temperature is 5602 K. HD 141399 is enriched in heavy elements compared to the Sun, with a metallicity Fe/H index of 0.36±0.03.[5] The star has very low starspot activity.[3]
Planetary system
[edit]In 2014, four planets orbiting HD 141399 were discovered by the radial velocity method.[6] Planet HD 141399c is possibly located within the habitable zone.[3] The planetary orbits are close to high-order mean-motion resonance[9] and closely conform to the Titius–Bode law. Two additional planets, one with a period of 462.9 days, are suspected by analogy with the orbits of the Solar System planets.[10] The planetary orbits around HD 141399 are expected to "jump" periodically on a timescale of a few million years between several quasi-stable configurations due to planet-planet interactions.[9] HD 141399 is one of only two known planetary systems consisting of at least four massive gas giants (the other is the system of planets around the young star HR 8799).[11]
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination | Radius |
|---|---|---|---|---|---|---|
| b | 0.451±0.030 MJ | 0.415±0.011 | 94.44±0.05 | 0.04±0.02 | — | — |
| c | 1.33±0.08 MJ | 0.689±0.02 | 201.99±0.08 | 0.048±0.009 | — | — |
| d | 1.18±0.08 MJ | 2.09±0.06 | 1069.8±6.7 | 0.074±0.025 | — | — |
| e | 0.66±0.10 MJ | 5.0±1.5 | 3370±90 | <0.1 | — | — |
References
[edit]- ^ Kane, Stephen R. (2023). "Surrounded by Giants: Habitable Zone Stability within the HD 141399 System". The Astronomical Journal. 166 (5) 187. arXiv:2310.00860. Bibcode:2023AJ....166..187K. doi:10.3847/1538-3881/acfb01.
- ^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c d e f Hébrard, G.; Arnold, L.; Forveille, T.; Correia, A. C. M.; Laskar, J.; Bonfils, X.; Boisse, I.; Díaz, R. F.; Hagelberg, J.; Sahlmann, J.; Santos, N. C.; et al. (1 April 2016). "The SOPHIE search for northern extrasolar planets. X. Detection and characterization of giant planets by the dozen". Astronomy and Astrophysics. 588: A145. arXiv:1602.04622. Bibcode:2016A&A...588A.145H. doi:10.1051/0004-6361/201527585. ISSN 0004-6361. S2CID 55138055.
- ^ Boro Saikia, S.; Marvin, C. J.; Jeffers, S. V.; Reiners, A.; Cameron, R.; Marsden, S. C.; Petit, P.; Warnecke, J.; Yadav, A. P. (2018). "Chromospheric activity catalogue of 4454 cool stars. Questioning the active branch of stellar activity cycles". Astronomy and Astrophysics. 616. arXiv:1803.11123. Bibcode:2018A&A...616A.108B. doi:10.1051/0004-6361/201629518.
- ^ a b c d e Sousa, S. G.; Adibekyan, V.; Delgado-Mena, E.; Santos, N. C.; Andreasen, D. T.; Ferreira, A. C. S.; Tsantaki, M.; Barros, S. C. C.; Demangeon, O.; Israelian, G.; Faria, J. P.; Figueira, P.; Mortier, A.; Brandão, I.; Montalto, M.; Rojas-Ayala, B.; Santerne, A. (2018), "SWEET-Cat updated", Astronomy & Astrophysics, 620: A58, arXiv:1810.08108, Bibcode:2018A&A...620A..58S, doi:10.1051/0004-6361/201833350, S2CID 119374557
- ^ a b c Vogt, Steven S.; Butler, R. Paul; Rivera, Eugenio J.; Kibrick, Robert; Burt, Jennifer; Hanson, Russell; Meschiari, Stefano; Henry, Gregory W.; Laughlin, Gregory (2014), "A Four-Planet System Orbiting the K0V Star Hd 141399", The Astrophysical Journal, 787 (2): 97, arXiv:1404.7462, Bibcode:2014ApJ...787...97V, doi:10.1088/0004-637X/787/2/97, S2CID 10477331
- ^ Tejada Arevalo, Roberto A.; Winn, Joshua N.; Anderson, Kassandra R. (2021). "Further Evidence for Tidal Spin-up of Hot Jupiter Host Stars". The Astrophysical Journal. 919 (2): 138. arXiv:2107.05759. Bibcode:2021ApJ...919..138T. doi:10.3847/1538-4357/ac1429.
- ^ "HD 141399". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 6 May 2021.
- ^ a b Agnew, Matthew T.; Maddison, Sarah T.; Horner, Jonathan (2018), "Prospecting for exo-Earths in multiple planet systems with a gas giant", Monthly Notices of the Royal Astronomical Society, 481 (4): 4680–4697, arXiv:1809.03730, doi:10.1093/mnras/sty2509
- ^ Allen, Christine; Cordero-Tercero, Guadalupe; Lara, Patricia (2020), "The reliability of the Titius–Bode relation and its implications for the search for exoplanets", Publications of the Astronomical Society of Japan, 72 (2), arXiv:2003.05121, doi:10.1093/pasj/psz146
- ^ Staff News (31 October 2023). "Giant Exoplanets Are Potential 'Agents of Chaos' in Multiplanet Systems, Astronomers Say | Sci.News". Sci.News: Breaking Science News. Retrieved 5 November 2023.
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