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Related papers: Constraining low-altitude lunar dust using the LAD…

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We report a limit on the ultra-high-energy neutrino flux based on a non-detection of radio pulses from neutrino-initiated particle cascades in the Moon, in observations with the Parkes radio telescope undertaken as part of the LUNASKA…

High Energy Astrophysical Phenomena · Physics 2015-06-23 J. D. Bray , R. D. Ekers , P. Roberts , J. E. Reynolds , C. W. James , C. J. Phillips , R. J. Protheroe , R. A. McFadden , M. G. Aartsen

The Constellation Project's planned return to the moon requires numerous landings at the same site. Since the top few centimeters are loosely packed regolith, plume impingement from the Lander ejects the granular material at high…

Earth and Planetary Astrophysics · Physics 2021-04-19 Christopher Immer , John Lane , Philip Metzger , Sandra Clements

We searched for evidence of reddening of background SDSS QSO spectra due to dust in intervening DLA systems. We utilise the Data Releases 5 and 7 to arrive at sample sizes of 475 (DR5) and 676 (DR7) absorbers, based on two different…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 S. Frank , C. Péroux

Observations of the Earth as a planet using the earthshine technique (i.e. looking at the light reflected from the darkside of the Moon), have been used for climate and astrobiology studies. They provide information about the planetary…

Dust is the main driver of Mars' atmospheric variability. The determination of Martian dust aerosol properties is of high relevance for radiative modelling and calculating its weather forcing. In particular, the light scattering behaviour…

Earth and Planetary Astrophysics · Physics 2019-05-06 H. Chen-Chen , S. Perez-Hoyos , A. Sanchez-Lavega

The radio environment of the Moon at low frequencies, particularly in lunar polar regions and the permanently shadowed regions (PSR) found there, is relatively poorly explored and may contain some novel features. In addition, these areas of…

Earth and Planetary Astrophysics · Physics 2021-04-01 T. Marshall Eubanks , W. P. Blase

During the past decade there have been several attempts to detect cosmogenic ultra high energy (UHE) neutrinos by searching for radio Cerenkov bursts resulting from charged impact showers in terrestrial ice or the lunar regolith. So far…

Instrumentation and Methods for Astrophysics · Physics 2010-10-05 T. R. Jaeger , R. L. Mutel , K. G. Gayley

The dust extinction laws and dust properties in M31 are explored with a sample of reddened O-type and B-type supergiants obtained from the LGGS. The observed spectral energy distributions (SEDs) for each tracer are constructed with…

Astrophysics of Galaxies · Physics 2022-03-02 Yuxi Wang , Jian Gao , Yi Ren

In order to study the initial conditions of planet formation, it is crucial to obtain spatially resolved multi-wavelength observations of the innermost region of protoplanetary discs. We evaluate the advantage of combining observations with…

Solar and Stellar Astrophysics · Physics 2019-02-20 Julia Kobus , Sebastian Wolf , Robert Brunngräber

The Atmospheric Chemistry Suite (ACS) instrument onboard the ExoMars Trace Gas Orbiter (TGO) ESA-Roscosmos mission began science operations in March 2018. ACS Mid InfraRed (MIR) channel notably provides solar occultation observations of the…

The time evolution of atmospheric dust at high southern latitudes on Mars has been determined using observations of the south seasonal cap acquired in the near infrared (1-2.65 {\mu}m) by OMEGA/Mars Express in 2005. Observations at…

Earth and Planetary Astrophysics · Physics 2011-03-07 Mathieu Vincendon , Yves Langevin , François Poulet , Jean-Pierre Bibring , Brigitte Gondet , Denis Jouglet , OMEGA Team

We show that at wavelengths comparable to the length of the shower produced by an Ultra-High Energy cosmic ray or neutrino, radio signals are an extremely efficient way to detect these particles. Through an example it is shown that this new…

Astrophysics · Physics 2013-02-25 O. Scholten , J. Bacelar , R. Braun , A. G. de Bruyn , H. Falcke , B. Stappers , R. G. Strom

We present observations and modeling of a lunar occultation of the dust-enshrouded carbon star AFGL 5440. The observations were made over a continuous range of wavelengths from 1 - 4um with a high-speed spectrophotometer designed expressly…

Astrophysics · Physics 2009-11-13 Paul M. Harvey , Andrew Oldag

Given the compositional diversity of asteroids, and their distribution in space, it is impossible to consider returning samples from each one to establish their origin. However, the velocity and molecular composition of primary minerals,…

The thermal emission of dust is one of the most important tracers of the interstellar medium: multi-wavelength photometry in the far-infrared (FIR) and submillimeter (submm) can be fitted with a model, providing estimates of the dust mass.…

Astrophysics of Galaxies · Physics 2020-10-07 Lapo Fanciullo , Francisca Kemper , Peter Scicluna , Thavisha E. Dharmawardena , Sundar Srinivasan

A very efficient method to measure the flux of Ultra-high energy (UHE) neutrinos is through the detection of radio waves which are emitted by the particle shower in the lunar regolith. The highest acceptance is reached for radio waves in…

Astrophysics · Physics 2009-06-23 Olaf Scholten , Arjen van Vliet

Photometry of the nebulae LDN1780, LDN1642 and LBN406 is used to derive scattering properties of dust and to investigate the presence of UV fluorescence emission by molecular hydrogen and the extended red emission (ERE). We used…

Astrophysics of Galaxies · Physics 2018-09-12 K. Mattila , M. Haas , L. K. Haikala , Y-S. Jo , K. Lehtinen , Ch. Leinert , P. Vaeisaenen

Several nearby ultra-faint satellites of the Milky Way discovered by the Dark Energy Survey (DES) during the last few years are promising targets for indirect dark matter (DM) searches with very-high-energy (VHE, E$\gtrsim$100 GeV) gamma…

High Energy Astrophysical Phenomena · Physics 2019-09-05 Lucia Rinchiuso , Emmanuel Moulin , Céline Armand , Vincent Poireau , H. E. S. S. Collaboration

LOUPE, the Lunar Observatory for Unresolved Polarimetry of the Earth, is a small, robust spectro-polarimeter with a mission to observe the Earth as an exoplanet. Detecting Earth-like planets in stellar habitable zones is one of the key…