Optical monitoring of the dust environment at lunar surface exploration sites

Lolachi, R.; Glenar, D. A.; Stubbs, T. J.

doi:10.1016/j.pss.2023.105709

Cited by 4 publications

(3 citation statements)

References 43 publications

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“…A scattering function that rises with increasing phase angle generally implies the presence of small, forward-scattering dust particles (Lolachi et al 2023). It is likely that the impact of the DART spacecraft into Dimorphos produced a population of small particles that were explosively ejected from the system at relatively high speeds.…”

Section: Amplitude Of the Ejecta Signal: Lucy Versus Atlasmentioning

confidence: 99%

Lucy Observations of the DART Impact Event

Weaver,

Sunshine,

Ernst

et al. 2024

Planet. Sci. J.

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The Lucy LOng Range Reconnaissance Imager (L’LORRI) took 1549 images of the Didymos–Dimorphos binary system, starting 12 hr before the Double Asteroid Redirection Test (DART) impact event on 2022 September 26 and ending 24 hr after it. The Lucy imaging campaign provided pre-impact monitoring of the baseline brightness of the Didymos system, as well as intensive 1 s cadence imaging starting 3 minutes prior to impact and extending until 4 minutes after impact, and then continued monitoring at increasing cadences and image exposure times to measure the Didymos system brightness changes produced by ejecta released during the impact. One of the L’LORRI images encompassed the exact time when the DART spacecraft impacted Dimorphos, but there is no evidence of a thermally generated optical flash in the image. L’LORRI observed a shell of fast-moving ejecta, and we derive a range of projected speeds (∼0.26–3.6 km s−1) for that material. The much slower moving ejecta (≲1 m s−1) stayed within a single L’LORRI pixel for the entire duration of the Lucy-DART program. We find that the slow ejecta were responsible for 57.4% ± 2.2% of the total post-impact brightness increase measured by L’LORRI, while the fast ejecta were responsible for 42.6% ± 2.3% of the post-impact brightness increase. The initial brightness increase relative to the pre-impact Didymos system brightness was significantly smaller for L’LORRI compared to that measured by some ground-based observers, which is plausibly explained by differences in phase angles and different responses to sodium emission depending on the camera spectral bandwidths.

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Section: Amplitude Of the Ejecta Signal: Lucy Versus Atlasmentioning

confidence: 99%

Lucy Observations of the DART Impact Event

Weaver,

Sunshine,

Ernst

et al. 2024

Planet. Sci. J.

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“…Several projects aim to measure its properties, e.g. [16]. It is therefore important to take countermeasures to eliminate its effects on instrumentation.…”

Section: Issues (A) Dustmentioning

confidence: 99%

Astronomy from the moon in the next decades: from exoplanets to cosmology in visible light and beyond

Schneider,

Kervella,

Labeyrie

2024

Phil. Trans. R. Soc. A.

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We look at what astronomy from the Moon might be like over the next few decades. The Moon offers the possibility of installing large telescopes or interferometers with instruments larger than those on orbiting telescopes. We first present examples of ambitious science cases, in particular ideas that cannot be implemented from Earth. After a general review of observational approaches, from photometry to high contrast and high angular resolution imaging, we propose as a first step a 1-metre-class precursor and explore what science can be done with it. We add a proposal to use the Earth–Moon system to test the quantum physics theory. This article is part of a discussion meeting issue 'Astronomy from the Moon: the next decades (part 2)'.

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“…Several projects intend to measure its properties, e.g. [15] It is thus important to take countermeasures to eliminate its impacts on instrumentation.…”

Section: Dustmentioning

confidence: 99%

OWL-Moon: Very high resolution spectropolarimetric interferometry and imaging from the Moon: exoplanets to cosmology

Silk¹,

Vakili

2022

Exp Astron

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We outline a concept for OWL-Moon, a 50-100m aperture telescope located on the surface of the Moon, to address three major areas in astronomy, namely the detection of biosignatures on habitable exoplanets, the geophysics of exoplanets, and cosmology. Such a large lunar telescope, when coupled with large Earth-based telescopes, would allow Intensity Interferometric measurements, leading to picoarcsecond angular resolution. This would have applications in many areas of astronomy and is timely in light of the renewed interest of space agencies in returning to the Moon.

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Optical monitoring of the dust environment at lunar surface exploration sites

Cited by 4 publications

References 43 publications

Lucy Observations of the DART Impact Event

Lucy Observations of the DART Impact Event

Astronomy from the moon in the next decades: from exoplanets to cosmology in visible light and beyond

OWL-Moon: Very high resolution spectropolarimetric interferometry and imaging from the Moon: exoplanets to cosmology

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