منابع مشابه
Neptune migration model with one extra planet
We explore conventional Neptune migration model with one additional planet of mass at 0.1-2.0 M⊕. This planet inhabited in the 3:2 mean motion resonance with Neptune during planet migration epoch, and then escaped from the Kuiper belt when Jovian planets parked near the present orbits. Adding this extra planet and assuming the primordial disk truncated at about 45 AU in the conventional Neptune...
متن کاملThe M Dwarf GJ 436 and its Neptune - Mass Planet
We determine stellar parameters for the M dwarf GJ 436 that hosts a Neptunemass planet. We employ primarily spectral modeling at low and high resolution, examining the agreement between model and observed optical spectra of five comparison stars of type, M0-M3. Modeling high resolution optical spectra suffers from uncertainties in TiO transitions, affecting the predicted strengths of both atomi...
متن کاملA new Neptune - mass planet orbiting HD 219828 ⋆
Two years ago a new benchmark for the planetary survey was set with the discoveries of three extrasolar planets with masses below 20M⊕. In particular, the serendipitous discovery of the 14M⊕ planet around µ Ara found with HARPS with a semi-amplitude of only 4 m s −1 put in evidence the tremendous potential of HARPS for the search of this class of very low-mass planets. Aiming to discovering new...
متن کاملFollow - up Observations of the Neptune Mass Transiting Extrasolar Planet Hat - P - 11 b
We have confirmed the existence of the transiting super Neptune extrasolar planet HAT-P-11b. On May 1, 2009 UT the transit of Hat-P-11b was detected at the University of Arizona’s 1.55m Kuiper Telescope with 1.7 millimag rms accuracy. We find a central transit time of Tc = 2454952.92534± 0.00060 BJD; this transit occurred 80 ± 73 seconds sooner than previous measurements (71 orbits in the past)...
متن کاملFollow - up Observations of the Neptune Mass Transiting Extrasolar Planet HAT - P - 11 b Jason
We have confirmed the existence of the transiting super Neptune extrasolar planet HAT-P-11b. On May 1, 2009 UT the transit of HAT-P-11b was detected at the University of Arizona’s 1.55m Kuiper Telescope with 1.7 millimag rms accuracy. We find a central transit time of Tc = 2454952.92534± 0.00060 BJD; this transit occurred 80 ± 73 seconds sooner than previous measurements (71 orbits in the past)...
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ژورنال
عنوان ژورنال: Journal of the Franklin Institute
سال: 1849
ISSN: 0016-0032
DOI: 10.1016/0016-0032(49)90025-3