An m sin i = 24 Earth Mass Planetary Companion To The Nearby M Dwarf GJ 176 - AstrophysicsReportar como inadecuado




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Abstract: We report the detection of a planetary companion with a minimum mass of m sini = 0.0771 M Jup = 24.5 M Earth to the nearby d = 9.4 pc M2.5V star GJ 176.The star was observed as part of our M dwarf planet search at the Hobby-EberlyTelescope HET. The detection is based on 5 years of high-precisiondifferential radial velocity RV measurements using theHigh-Resolution-Spectrograph HRS. The orbital period of the planet is 10.24d. GJ 176 thus joins the small but increasing sample of M dwarfs hostingshort-periodic planets with minimum masses in the Neptune-mass range. Low massplanets could be relatively common around M dwarfs and the current detectionsmight represent the tip of a rocky planet population.



Autor: Michael Endl, William D. Cochran, Robert A. Wittenmyer, Alan P. Boss

Fuente: https://arxiv.org/







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