Matches in SemOpenAlex for { <https://semopenalex.org/work/W3201601093> ?p ?o ?g. }
- W3201601093 endingPage "L2" @default.
- W3201601093 startingPage "L2" @default.
- W3201601093 abstract "Aims. We aim to demonstrate that the presence and mass of an exoplanet can now be effectively derived from the astrometry of another exoplanet. Methods. We combined previous astrometry of β Pictoris b with a new set of observations from the GRAVITY interferometer. The orbital motion of β Pictoris b is fit using Markov chain Monte Carlo simulations in Jacobi coordinates. The inner planet, β Pictoris c, was also reobserved at a separation of 96 mas, confirming the previous orbital estimations. Results. From the astrometry of planet b only, we can (i) detect the presence of β Pictoris c and (ii) constrain its mass to 10.04 −3.10 +4.53 M Jup . If one adds the astrometry of β Pictoris c, the mass is narrowed down to 9.15 −1.06 +1.08 M Jup . The inclusion of radial velocity measurements does not affect the orbital parameters significantly, but it does slightly decrease the mass estimate to 8.89 −0.75 +0.75 M Jup . With a semimajor axis of 2.68 ± 0.02 au, a period of 1221 ± 15 days, and an eccentricity of 0.32 ± 0.02, the orbital parameters of β Pictoris c are now constrained as precisely as those of β Pictoris b. The orbital configuration is compatible with a high-order mean-motion resonance (7:1). The impact of the resonance on the planets’ dynamics would then be negligible with respect to the secular perturbations, which might have played an important role in the eccentricity excitation of the outer planet." @default.
- W3201601093 created "2021-09-27" @default.
- W3201601093 creator A5001727217 @default.
- W3201601093 creator A5002722180 @default.
- W3201601093 creator A5004548355 @default.
- W3201601093 creator A5006047518 @default.
- W3201601093 creator A5007307022 @default.
- W3201601093 creator A5008425022 @default.
- W3201601093 creator A5008658934 @default.
- W3201601093 creator A5009102223 @default.
- W3201601093 creator A5010189008 @default.
- W3201601093 creator A5010950716 @default.
- W3201601093 creator A5011405198 @default.
- W3201601093 creator A5014405410 @default.
- W3201601093 creator A5014573115 @default.
- W3201601093 creator A5016254617 @default.
- W3201601093 creator A5016303944 @default.
- W3201601093 creator A5017423232 @default.
- W3201601093 creator A5017959479 @default.
- W3201601093 creator A5018097745 @default.
- W3201601093 creator A5020298532 @default.
- W3201601093 creator A5020754900 @default.
- W3201601093 creator A5022806484 @default.
- W3201601093 creator A5024617387 @default.
- W3201601093 creator A5025137955 @default.
- W3201601093 creator A5025276453 @default.
- W3201601093 creator A5026000814 @default.
- W3201601093 creator A5026275444 @default.
- W3201601093 creator A5027818842 @default.
- W3201601093 creator A5028470365 @default.
- W3201601093 creator A5029274427 @default.
- W3201601093 creator A5029671348 @default.
- W3201601093 creator A5030303577 @default.
- W3201601093 creator A5030330427 @default.
- W3201601093 creator A5031687927 @default.
- W3201601093 creator A5032049136 @default.
- W3201601093 creator A5036816181 @default.
- W3201601093 creator A5038874544 @default.
- W3201601093 creator A5040601859 @default.
- W3201601093 creator A5041020592 @default.
- W3201601093 creator A5041816269 @default.
- W3201601093 creator A5042388909 @default.
- W3201601093 creator A5042933911 @default.
- W3201601093 creator A5043164619 @default.
- W3201601093 creator A5043749174 @default.
- W3201601093 creator A5045181068 @default.
- W3201601093 creator A5045512106 @default.
- W3201601093 creator A5048189938 @default.
- W3201601093 creator A5048537056 @default.
- W3201601093 creator A5049156516 @default.
- W3201601093 creator A5050076579 @default.
- W3201601093 creator A5050875791 @default.
- W3201601093 creator A5051199875 @default.
- W3201601093 creator A5051967829 @default.
- W3201601093 creator A5052543339 @default.
- W3201601093 creator A5052954301 @default.
- W3201601093 creator A5054387556 @default.
- W3201601093 creator A5054761800 @default.
- W3201601093 creator A5054847338 @default.
- W3201601093 creator A5054920600 @default.
- W3201601093 creator A5055046605 @default.
- W3201601093 creator A5055923765 @default.
- W3201601093 creator A5059249833 @default.
- W3201601093 creator A5059481170 @default.
- W3201601093 creator A5061288828 @default.
- W3201601093 creator A5061705666 @default.
- W3201601093 creator A5062064925 @default.
- W3201601093 creator A5063630200 @default.
- W3201601093 creator A5065254902 @default.
- W3201601093 creator A5065375312 @default.
- W3201601093 creator A5065968034 @default.
- W3201601093 creator A5067378139 @default.
- W3201601093 creator A5070202216 @default.
- W3201601093 creator A5070230245 @default.
- W3201601093 creator A5070619820 @default.
- W3201601093 creator A5072188070 @default.
- W3201601093 creator A5072296304 @default.
- W3201601093 creator A5072775492 @default.
- W3201601093 creator A5074404873 @default.
- W3201601093 creator A5075716233 @default.
- W3201601093 creator A5076927452 @default.
- W3201601093 creator A5078680112 @default.
- W3201601093 creator A5079021931 @default.
- W3201601093 creator A5080737342 @default.
- W3201601093 creator A5081520912 @default.
- W3201601093 creator A5082869565 @default.
- W3201601093 creator A5084566839 @default.
- W3201601093 creator A5084877030 @default.
- W3201601093 creator A5086150954 @default.
- W3201601093 creator A5086829334 @default.
- W3201601093 creator A5087379508 @default.
- W3201601093 creator A5087638033 @default.
- W3201601093 creator A5089125140 @default.
- W3201601093 creator A5089452758 @default.
- W3201601093 creator A5089485917 @default.
- W3201601093 creator A5089788978 @default.
- W3201601093 creator A5090479752 @default.
- W3201601093 creator A5090718980 @default.