General Relativity and the Orbit of Icarus

Shapiro, I. I.; Smith, W. B.; Ash, Michael E.; Herrick, Samuel

doi:10.1086/111168

Cited by 96 publications

(53 citation statements)

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“…10 -5. Essentially the same result was found by Shapiro et al (1971) and by the author (Landgraf, 1985), mainly due to the fact that until then no further close encounters happened and only a few additional observations at far distances have been made. However, a simulation with a realistic number of observations leads us to expect that after the encounter in 1987, the formal mean error for determinations of J2 will decrease to • -6 and within the next twenty years to below • 9 10 -6 (Landgraf, 1985).…”

Section: Introductionsupporting

confidence: 79%

An estimation of the oblateness of Sun from the motion of Icarus

Landgraf

1992

Sol Phys

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Section: Introductionsupporting

confidence: 79%

An estimation of the oblateness of Sun from the motion of Icarus

Landgraf

1992

Sol Phys

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“…This idea was concretized several times [4][5][6][7] by estimating a relativity parameter that takes the value one in GR. The best measurements were achieved to a precision of a few percent.…”

Section: Introductionmentioning

confidence: 99%

Tests of fundamental physics with the Gaia mission through the dynamics of minor planets

Mouret

2011

Phys. Rev. D

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With a launch planned in March 2013, the ESA Gaia mission will scan the whole sky several times during its operational five years. It will provide highly accurate astrometric observations of celestial bodies (at the sub-milli-arcsecond level) not exclusively beyond the Solar System, since about 250 000 asteroids will be observed. Gaia will thus give us the opportunity of performing various valuable tests of fundamental physics by assessing global parameters from the dynamics of minor planets; in this paper, we evaluated its performance from realistic simulated data and a variance analysis carried out from the observation residuals on a data model linearized with respect to the initial position and velocity of each asteroid and the set of global parameters. Currently, the most relevant fits turn out to be for the PPN parameter ( $ 1:4 Â 10 À3 ), the temporal variation of the gravitational constant _ G=G ( _ G=G $ 3:2 Â 10 À12 yr À1 ), the Nordtvedt parameter ( $ 2:4 Â 10 À3 ) and the Gm of Jupiter ( Gm j $ 2:9 Â 10 À15 au 3 d À2 ), which show a low level of correlation. The underestimated astrometric precision used in the simulations and the possibility to combine Gaia data with future accurate ground-based observations foreshadow more accurate determinations.

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“…Icarus i p 23Њ remained the record holder in having the smallest q among all asteroids until the discovery of 3200 Phaethon in 1983. Indeed, on account of its small q, Icarus was historically of particular interest as to whether the relativistic effects on its orbital motion were detectable (e.g., Shapiro et al 1971).…”

Section: Introductionmentioning

confidence: 99%

Apollo Asteroids 1566 Icarus and 2007 MK ₆ : Icarus Family Members?

Ohtsuka¹,

Arakida

Itô

et al. 2007

ApJ

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Although it is more complicated to search for near-Earth object (NEO) families than main belt asteroid families, since differential orbital evolution within a NEO family can cause current orbital elements to drastically differ from each other, we have found that Apollo asteroids 1566 Icarus and the newly discovered 2007 MK 6 are almost certainly related. Specifically, their orbital evolutions show a similar profile, time shifted by only ∼1000 yr, based on our time-lag theory. The dynamical relationship between Icarus and 2007 MK 6 along with a possible dust band, the Taurid-Perseid meteor swarm, implies the first detection of an asteroidal NEO family, namely, the "Icarus asteroid family."

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General Relativity and the Orbit of Icarus

Cited by 96 publications

References 0 publications

An estimation of the oblateness of Sun from the motion of Icarus

An estimation of the oblateness of Sun from the motion of Icarus

Tests of fundamental physics with the Gaia mission through the dynamics of minor planets

Apollo Asteroids 1566 Icarus and 2007 MK ₆ : Icarus Family Members?

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General Relativity and the Orbit of Icarus

Cited by 96 publications

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An estimation of the oblateness of Sun from the motion of Icarus

An estimation of the oblateness of Sun from the motion of Icarus

Tests of fundamental physics with the Gaia mission through the dynamics of minor planets

Apollo Asteroids 1566 Icarus and 2007 MK 6 : Icarus Family Members?

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Product

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Apollo Asteroids 1566 Icarus and 2007 MK ₆ : Icarus Family Members?