Results 41 to 50 of about 4,034,717 (373)

On the Determination of Planetary Masses [PDF]

open access: yesSymposium - International Astronomical Union, 1972
A common method of determining the mass of a planet is to solve for the orbit of some other object several times with different trial values for the mass in question. It is pointed out that a parabola fitted to the values of the sums of the squares of the residuals may be used to obtain, not only the planetary mass, but also its probable error. Marsden'
openaire   +2 more sources

Ophiuchus 1622−2405: Not a Planetary‐Mass Binary [PDF]

open access: yesThe Astrophysical Journal, 2007
The Astrophysical Journal, in ...
Catherine L. Slesnick   +9 more
openaire   +6 more sources

Discovery of a planetary-mass companion within the gap of the transition disk around PDS 70 [PDF]

open access: yesAstronomy & Astrophysics, 2018
Context. Young circumstellar disks are the birthplaces of planets. Their study is of prime interest to understand the physical and chemical conditions under which planet formation takes place.
M. Keppler   +135 more
semanticscholar   +1 more source

ALMA Observations of the Young Substellar Binary System 2M1207 [PDF]

open access: yes, 2017
We present ALMA observations of the 2M1207 system, a young binary made of a brown dwarf with a planetary-mass companion at a projected separation of about 40 au.
Andrews, S.   +12 more
core   +3 more sources

Bayesian test of the mass of the graviton with planetary ephemerides

open access: yesPhysical Review D, 2023
In this work, we investigated Bayesian methodologies for constraining in the Solar System a Yukawa suppression of the Newtonian potential -- which we interpret as the effect of a non-null graviton mass -- by considering its impact on planetary orbits.
Mariani, Vincenzo   +4 more
openaire   +4 more sources

Impact of Changing Stellar and Planetary Magnetic Fields on (Exo)planetary Environments and Atmospheric Mass Loss

open access: yesThe Astrophysical Journal, 2023
The magnetic activity of a star—which modulates the stellar wind outflow—shapes the immediate environments of orbiting (exo)planets and induces atmospheric loss, thereby impacting their habitability.
Sakshi Gupta   +2 more
doaj   +1 more source

Properties of the Planetary Caustic Perturbation [PDF]

open access: yes, 2010
Just two of 10 extrasolar planets found by microlensing have been detected by the planetary caustic despite the higher probability of planet detection relative to the central caustic which has been responsible for four extrasolar planet detections.
Albrow   +23 more
core   +1 more source

Systematic KMTNet Planetary Anomaly Search. VII. Complete Sample of q < 10−4 Planets from the First 4 yr Survey

open access: yesThe Astronomical Journal, 2023
We present the analysis of seven microlensing planetary events with planet/host mass ratios q < 10 ^−4 : KMT-2017-BLG-1194, KMT-2017-BLG-0428, KMT-2019-BLG-1806, KMT-2017-BLG-1003, KMT-2019-BLG-1367, OGLE-2017-BLG-1806, and KMT-2016-BLG-1105.
Weicheng Zang   +42 more
doaj   +1 more source

Constraining the Mass of the Graviton with the Planetary Ephemeris INPOP [PDF]

open access: yesPhysical Review Letters, 2019
We use the planetary ephemeris INPOP17b to constrain the mass of the graviton in the Newtonian limit. We also give an interpretation of this result for a specific case of fifth force framework. We find that the residuals for the Cassini spacecraft significantly (90\% C.L.) degrade for Compton wavelengths of the graviton smaller than $1.83\times 10^{13}$
Bernus, L.   +5 more
openaire   +5 more sources

Planetary nebulae as mass tracers in galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
8 pages, 4 figs, invited review to appear in Proc. IAU Symp. 234, Planetary Nebulae in Our Galaxy and Beyond (3-7 Apr 2006), eds. M.J. Barlow & R.H. Mendez (Cambridge Univ. Press)
openaire   +4 more sources

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