An improved model for the infrared emission from the zodiacal dust cloud: cometary, asteroidal and interstellar dust

Rowan-Robinson, M.; May, Brian Harold

doi:10.1093/mnras/sts471

Cited by 89 publications

(43 citation statements)

References 39 publications

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“…This study showed that JFCs contribute (80 ± 17)% of the total input mass of 43 ± 14 t d −1 , in good accord with COBE and Planck observations of the zodiacal cloud (Nesvorný et al 2010(Nesvorný et al , 2011aRowan-Robinson and May 2013;Yang and Ishiguro 2015). Our understanding of dust distributions in the outer solar system has been slower to coalesce, mainly due to the infrequent opportunities for in situ observations.…”

Section: Astronomical Dust Modelssupporting

confidence: 83%

Impacts of Cosmic Dust on Planetary Atmospheres and Surfaces

et al. 2017

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Recent advances in interplanetary dust modelling provide much improved estimates of the fluxes of cosmic dust particles into planetary (and lunar) atmospheres throughout the solar system. Combining the dust particle size and velocity distributions with new chemical ablation models enables the injection rates of individual elements to be predicted as a function of location and time. This information is essential for understanding a variety of atmospheric impacts, including: the formation of layers of metal atoms and ions; meteoric smoke particles and ice cloud nucleation; perturbations to atmospheric gas-phase chemistry; and the effects of the surface deposition of micrometeorites and cosmic spherules. There is discussion of impacts on all the planets, as well as on Pluto, Triton and Titan.

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Section: Astronomical Dust Modelssupporting

confidence: 83%

Impacts of Cosmic Dust on Planetary Atmospheres and Surfaces

et al. 2017

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“…The Zodiacal light is highest at 24 µm, the Milky Way brightness at 100 µm. The shown fit to the Zodiacal light includes thermal emission from asteroidal, cometary and interstellar dust in the solar system [211]. Most observations of the Zodiacal light beyond ∼ 10 µm are carried out beyond the atmosphere, from rockets [154] and from instruments on the satellites IRAS [12,212,213], COBE [78,197,104], IRTS [153] and ISO [197].…”

Section: Astronomical Observations Of Zodiacal Light and Cometsmentioning

confidence: 99%

“…The discussion of the Zodiacal brightness observations above has shown an analysis [211] ascribing it to a combination of asteroidal, cometary and interstellar dust in the solar system (see Figure 3). Indeed, the studies of the interplanetary dust with different methods can lead to quite different estimates of the dust cloud composition.…”

Section: The Major Solar System Dust Componentsmentioning

confidence: 99%

Dust in the planetary system: Dust interactions in space plasmas of the solar system

Mann¹,

Meyer‐Vernet²,

Czechowski³

2014

Physics Reports

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Cosmic dust particles are small solid objects observed in the solar planetary system and in many astronomical objects like the surrounding of stars, the interstellar and even the intergalactic medium. In the solar system the dust is best observed and most often found within the region of the orbits of terrestrial planets where the dust interactions and dynamics are observed directly from spacecraft. Dust is observed in space near Earth and also enters the atmosphere of the Earth where it takes part in physical and chemical processes. Hence space offers a laboratory to study dust plasma interactions and dust dynamics. A recent example is the observation of nanodust of sizes smaller than 10 nm. We outline the theoretical considerations on which our knowledge of dust electric charges in space plasmas are founded. We discuss the dynamics of the dust particles and show how the small charged particles are accelerated by the solar wind that carries a magnetic field. Finally, as examples for the space observation of cosmic dust interactions, we describe the first detection of fast nanodust in the solar wind near Earth orbit and the first bi-static observations of PMSE, the radar echoes that are observed in the Earth ionosphere in the presence of charged dust.

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“…This might be because the current exoplanet samples and debris-disk samples are weighted toward hot-Jupiters in close orbits and younger, heavier disks, respectively. In addition to the Asteroid and Kuiper belts, our solar system of 4.6 Gyrs old also has an optically thin dust disk named the Zodiacal cloud (e.g., Kelsall et al 1989;Rowan-Robinson & May 2013;Planck Collaboration 2014). The relation between the Zodiacal cloud and debris disks is also an important subject for discussion.…”

Section: Arxiv:160804480v1 [Astro-phsr] 16 Aug 2016mentioning

confidence: 99%

Faint warm debris disks around nearby bright stars explored by AKARI and IRSF

Ishihara

Takeuchi

Kobayashi

et al. 2017

A&A

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Context. Debris disks are important observational clues for understanding planetary-system formation process. In particular, faint warm debris disks may be related to late planet formation near 1 au. A systematic search of faint warm debris disks is necessary to reveal terrestrial planet formation. Aims. Faint warm debris disks show excess emission that peaks at mid-IR wavelengths. Thus we explore debris disks using the AKARI mid-IR all-sky point source catalog (PSC), a product of the second generation unbiased IR all-sky survey. Methods. We investigate IR excess emission for 678 isolated main-sequence stars for which there are 18 µm detections in the AKARI mid-IR all-sky catalog by comparing their fluxes with the predicted fluxes of the photospheres based on optical to near-IR fluxes and model spectra. The near-IR fluxes are first taken from the 2MASS PSC. However, 286 stars with Ks<4.5 in our sample have large flux errors in the 2MASS photometry due to saturation. Thus we have measured accurate J, H, and Ks band fluxes, applying neutral density (ND) filters for Simultaneous InfraRed Imager for Unbiased Survey (SIRIUS) on IRSF, the φ1.4 m near-IR telescope in South Africa, and improved the flux accuracy from 14% to 1.8% on average. Results. We identified 53 debris-disk candidates including eight new detections from our sample of 678 main-sequence stars. The detection rate of debris disks for this work is ∼8%, which is comparable with those in previous works by Spitzer and Herschel. Conclusions. The importance of this study is the detection of faint warm debris disks around nearby field stars. At least nine objects have a large amount of dust for their ages, which cannot be explained by the conventional steady-state collisional cascade model.

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An improved model for the infrared emission from the zodiacal dust cloud: cometary, asteroidal and interstellar dust

Cited by 89 publications

References 39 publications

Impacts of Cosmic Dust on Planetary Atmospheres and Surfaces

Impacts of Cosmic Dust on Planetary Atmospheres and Surfaces

Dust in the planetary system: Dust interactions in space plasmas of the solar system

Faint warm debris disks around nearby bright stars explored by AKARI and IRSF

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