Interplanetary Dust

Leinert, Christoph; Grün, E.

doi:10.1007/978-3-642-75361-9_5

Cited by 89 publications

(58 citation statements)

References 81 publications

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“…In view of the low albedo, ≈0.08 at the earth's orbit (Hauser & Houck 1986;Renard et al 1995), and in view of the large effective size of the particles of ≈60 µm diameter (Grün et al 1985;Leinert & Grün 1990), this will be quite a reasonable approximation. Scattering can be neglected in our wavelength range of λ ≥ 6 µm.…”

Section: Discussionmentioning

confidence: 98%

Mid-infrared spectrum of the zodiacal light observed with ISOPHOT

Leinert

Ábrahám

Acosta–Pulido

et al. 2002

A&A

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Abstract. We present 29 mid-infrared spectra of the zodiacal light distributed over the sky. The observed 5.9-11.7 µm spectral shapes are well represented by blackbody radiation with colour temperatures in the range of 255 ≤ T ≤ 300 K. The spectra are smooth and featureless. The variation of the temperature can be explained by the geometrical distribution of dust in the inner solar system. This result indicates that although the interplanetary dust particles originate from discrete sources (comets, asteroids) the interplanetary cloud of today seems to be well mixed in terms of grain composition and size distribution.

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Section: Discussionmentioning

confidence: 98%

Mid-infrared spectrum of the zodiacal light observed with ISOPHOT

Leinert

Ábrahám

Acosta–Pulido

et al. 2002

A&A

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“…We treat more realistic situations when the dielectric function of some dust constituents varies with temperature. As the P-R effect is dominant for the grains of radii between 1 µm and 100 µm (Leinert & Grün 1990), we consider particles of radii within this interval. It turns out that the real P-R effect (with temperature dependence of optical properties) offers different behavior from the standard P-R effect (temperature independent optical properties) for small dust grains.…”

Section: Introductionmentioning

confidence: 99%

Poynting-Robertson effect and perihelion motion

Klačka

Kocifaj

Pástor

et al. 2006

A&A

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The effect of stellar electromagnetic radiation on the motion of homogeneous spherical dust particles, the Poynting-Robertson (P-R) effect, is investigated. The effect already produces a shift of pericenter/perihelion in the accuracy to the first order in u/c, where u is velocity of the particle with respect to the source of radiation and c is the speed of light. The advancement of pericenter occurs due to the fact that the P-R effect depends on radiation pressure efficiency factor Q pr , which is a function of optical properties of the particle. The particle orbiting a star moves in various distances from the star and the particle optical properties may vary with the distance, as they are functions of temperature.

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“…Their individual origin, whether asteroidal or cometary, is difficult to establish. The cumulative mass distribution of the particles at 1 AU follows a broken power-law such that the dominant contribution to the cross sectional area (and therefore to the zodiacal emission) comes from 10 −10 kg grains (∼30 µm in radius), while the dom-inant contribution to the total dust mass comes from ∼ 10 −8 kg grains (Leinert and Grün 1990). …”

Section: Inner Solar System: Asteroidal and Cometary Dustmentioning

confidence: 99%

The Kuiper Belt and Other Debris Disks

Jewitt

Moro‐Martín

Lacerda

Astrophysics in the Next Decade

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We discuss the current knowledge of the Solar system, focusing on bodies in the outer regions, on the information they provide concerning Solar system formation, and on the possible relationships that may exist between our system and the debris disks of other stars. Beyond the domains of the Terrestrial and giant planets, the comets in the Kuiper belt and the Oort cloud preserve some of our most pristine materials. The Kuiper belt, in particular, is a collisional dust source and a scientific bridge to the dusty "debris disks" observed around many nearby main-sequence stars. Study of the Solar system provides a level of detail that we cannot discern in the distant disks while observations of the disks may help to set the Solar system in proper context.

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Interplanetary Dust

Cited by 89 publications

References 81 publications

Mid-infrared spectrum of the zodiacal light observed with ISOPHOT

Mid-infrared spectrum of the zodiacal light observed with ISOPHOT

Poynting-Robertson effect and perihelion motion

The Kuiper Belt and Other Debris Disks

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