Search Results - "Helbert, J."

The MASCOT Radiometer MARA for the Hayabusa 2 Mission by Grott, M., Knollenberg, J., Borgs, B., Hänschke, F., Kessler, E., Helbert, J., Maturilli, A., Müller, N.

“…The MASCOT radiometer MARA is a multi-spectral instrument which measures net radiative flux in six wavelength bands. MARA uses thermopile sensors as sensing…”
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The Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS) for the BepiColombo mission by Hiesinger, H., Helbert, J.

“…Scheduled for launch on board the BepiColombo Mercury Planetary Orbiter (MPO) in 2014, the Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS) is an…”
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What is controlling the reflectance spectra (0.35–150 µm) of hydrated (and dehydrated) carbonaceous chondrites? by Beck, Pierre, Maturilli, A., Garenne, A., Vernazza, P., Helbert, J., Quirico, E., Schmitt, B.

“…•The 0.7 µm feature in hydrated carbonaceous chondrites correlates with water content.•Continuum reflectance is not related to carbon content but primary…”
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Mid-infrared emissivity of partially dehydrated asteroid (162173) Ryugu shows strong signs of aqueous alteration by Hamm, M., Grott, M., Senshu, H., Knollenberg, J., de Wiljes, J., Hamilton, V. E., Scholten, F., Matz, K. D., Bates, H., Maturilli, A., Shimaki, Y., Sakatani, N., Neumann, W., Okada, T., Preusker, F., Elgner, S., Helbert, J., Kührt, E., Ho, T.-M., Tanaka, S., Jaumann, R., Sugita, S.

“…The near-Earth asteroid (162173) Ryugu, the target of Hayabusa2 space mission, was observed via both orbiter and the lander instruments. The infrared…”
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The best temperature range to acquire reliable thermal infrared spectra from orbit by Nestola, F., Ferrari, S., Pamato, M. G., Redhammer, G., Helbert, J., Alvaro, M., Domeneghetti, M. C.

“…Solar System bodies undergo to daily and periodical variations of temperature that mainly depend on their closeness to the Sun. It is known that mineral…”
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Studying the Composition and Mineralogy of the Hermean Surface with the Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS) for the BepiColombo Mission: An Update by Hiesinger, H., Helbert, J., Alemanno, G., Bauch, K. E., D’Amore, M., Maturilli, A., Morlok, A., Reitze, M. P., Stangarone, C., Stojic, A. N., Varatharajan, I., Weber, I.

“…Launched onboard the BepiColombo Mercury Planetary Orbiter (MPO) in October 2018, the Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS) is on its…”
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Cancellation problem for AS-Regular algebras of dimension three by Tang, Xin, Venegas Ramírez, Helbert J., Zhang, James J.

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Low thermal conductivity boulder with high porosity identified on C-type asteroid (162173) Ryugu by Grott, M., Knollenberg, J., Hamm, M., Ogawa, K., Jaumann, R., Otto, K. A., Delbo, M., Michel, P., Biele, J., Neumann, W., Knapmeyer, M., Kührt, E., Senshu, H., Okada, T., Helbert, J., Maturilli, A., Müller, N., Hagermann, A., Sakatani, N., Tanaka, S., Arai, T., Mottola, S., Tachibana, S., Pelivan, I., Drube, L., Vincent, J.-B., Yano, H., Pilorget, C., Matz, K. D., Schmitz, N., Koncz, A., Schröder, S. E., Trauthan, F., Schlotterer, M., Krause, C., Ho, T.-M., Moussi-Soffys, A.

“…C-type asteroids are among the most pristine objects in the Solar System, but little is known about their interior structure and surface properties. Telescopic…”
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Biconical reflectance, micro‐Raman, and nano‐FTIR spectroscopy of the Didim (H3‐5) meteorite: Chemical content and molecular variations by Yesiltas, M., Kaya, M., Glotch, T. D., Brunetto, R., Maturilli, A., Helbert, J., Ozel, M. E.

“…The Didim meteorite contains multiple lithologies and clasts of different petrologic types in a single stone. A mixture of H5 clasts in an unequilibrated H3…”
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Deriving iron contents from past and future Venus surface spectra with new high-temperature laboratory emissivity data by Helbert, J, Maturilli, A, Dyar, M D, Alemanno, G

“…In situ information on the surface composition of Venus is based on measurements of a small number of landing sites. In the laboratory, we measured the…”
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Correction to: Studying the Composition and Mineralogy of the Hermean Surface with the Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS) for the BepiColombo Mission: An Update by Hiesinger, H., Helbert, J., Alemanno, G., Bauch, K. E., D’Amore, M., Maturilli, A., Morlok, A., Reitze, M. P., Stangarone, C., Stojic, A. N., Varatharajan, I., Weber, I.

“…A Correction to this paper has been published: https://doi.org/10.1007/s11214-020-00780-w…”
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Venus surface thermal emission at 1 μm in VIRTIS imaging observations: Evidence for variation of crust and mantle differentiation conditions by Mueller, N., Helbert, J., Hashimoto, G. L., Tsang, C. C. C., Erard, S., Piccioni, G., Drossart, P.

“…The Venus Express spacecraft images the nightside thermal emissions using the Visible and Infrared Thermal Imaging Spectrometer (VIRTIS). At 1.02, 1.10, and…”
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Thermal structure of Martian soil and the measurability of the planetary heat flow by Grott, M., Helbert, J., Nadalini, R.

“…We investigate the influence of the external temperature forcing given by seasonal, interannual, and climatic temperature changes on the surface heat flow of…”
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Rotation period of Venus estimated from Venus Express VIRTIS images and Magellan altimetry by Mueller, N.T., Helbert, J., Erard, S., Piccioni, G., Drossart, P.

“…The 1.02 μm wavelength thermal emission of the nightside of Venus is strongly anti-correlated to the elevation of the surface. The VIRTIS instrument on Venus…”
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Mid-infrared spectral variability for compositionally similar asteroids: Implications for asteroid particle size distributions by Vernazza, P., Carry, B., Emery, J., Hora, J.L., Cruikshank, D., Binzel, R.P., Jackson, J., Helbert, J., Maturilli, A.

“…We report an unexpected variability among mid-infrared spectra (IRTF and Spitzer data) of eight S-type asteroids for which all other remote sensing…”
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The Berlin emissivity database (BED) by Maturilli, A., Helbert, J., Moroz, L.

“…Remote-sensing infrared spectroscopy is the principal field of investigation for planetary surfaces composition. Past, present and future missions to the solar…”
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Olivine thermal emissivity under extreme temperature ranges: Implication for Mercury surface by Helbert, J., Nestola, F., Ferrari, S., Maturilli, A., Massironi, M., Redhammer, G.J., Capria, M.T., Carli, C., Capaccioni, F., Bruno, M.

“…The work shows, for the first time experimentally and numerically, how the thermal emissivity spectra of a Mg-rich olivine (i.e. Mg1.84Fe0.16SiO4, Fo92Fa8,…”
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Spectral Properties and Physical Extent of Pyroclastic Deposits on Mercury: Variability Within Selected Deposits and Implications for Explosive Volcanism by Besse, S., Doressoundiram, A., Barraud, O., Griton, L., Cornet, T., Muñoz, C., Varatharajan, I., Helbert, J.

“…Explosive volcanism on the surface of planet Mercury is visible through the pyroclastic deposits that surround morphologic features often identified as the…”
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Martian Atmospheric Spectral End‐Members Retrieval From ExoMars Thermal Infrared (TIRVIM) Data by Alemanno, G., D’Amore, M., Maturilli, A., Helbert, J., Arnold, G., Korablev, O., Ignatiev, N., Grigoriev, A., Shakun, A., Trokhimovskiy, A.

“…Key knowledge about planetary composition can be recovered from the study of thermal infrared spectral range datasets. This range has a huge diagnostic…”
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Constraints on Mercury’s surface composition from MESSENGER and ground-based spectroscopy by Warell, J., Sprague, A., Kozlowski, R., Rothery, D.A., Lewis, N., Helbert, J., Cloutis, E.

“…The composition and chemistry of Mercury’s regolith has been calculated from MESSENGER MASCS 0.3–1.3 μm spectra from the first flyby, using an implementation…”
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