scholarly journals Visible Near-infrared Spectral Evolution of Irradiated Mixed Ices and Application to Kuiper Belt Objects and Jupiter Trojans

2018 ◽  
Vol 856 (2) ◽  
pp. 124 ◽  
Author(s):  
Michael J. Poston ◽  
Ahmed Mahjoub ◽  
Bethany L. Ehlmann ◽  
Jordana Blacksberg ◽  
Michael E. Brown ◽  
...  
Keyword(s):  
Near Infrared ◽  
Kuiper Belt ◽  
Spectral Evolution ◽  
Kuiper Belt Objects ◽  
Infrared Spectral

Near‐Infrared Spectroscopy of Charon: Possible Evidence for Cryovolcanism on Kuiper Belt Objects

2007 ◽  
Vol 663 (2) ◽  
pp. 1406-1419 ◽  
Author(s):  
Jason C. Cook ◽  
Steven J. Desch ◽  
Ted L. Roush ◽  
Chadwick A. Trujillo ◽  
T. R. Geballe
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Kuiper Belt ◽  
Kuiper Belt Objects

Col-OSSOS: Investigating Outlying Surfaces within the Kuiper Belt's Neutral Coloured Objects

2021 ◽  
Author(s):  
Laura Buchanan ◽  
Megan Schwamb ◽  
Wesley Fraser ◽  
Michele Bannister ◽  
Michaël Marsset ◽  
...  
Keyword(s):  
Solar System ◽  
Near Infrared ◽  
Kuiper Belt ◽  
Outer Solar System ◽  
Kuiper Belt Object ◽  
Broadband Absorption ◽  
Colour Measurements ◽  
Infrared Spectral ◽  
Colour Distribution ◽  
Absorption Features

<p>Within the outer Solar System exists the Kuiper belt. This Kuiper belt is made up of many icy planetesimals, the remaining relics of planet-forming bodies that failed to evolve into a planet beyond Neptune. The smaller members of the Kuiper belt (with <em>r</em> mag > 22) generally show linear and featureless spectra. Additionally, due to the dimness of these objects observing their spectra can be particularly difficult. Therefore, broadband photometry is often used to characterise their surfaces. The broadband photometry can be used as a proxy for composition, as it provides enough information to characterise the optical and near-infrared spectral slopes ofthese Kuiper Belt Object (KBO) surfaces.</p> <p>The Colours of the Outer Solar System Origins Survey (Col-OSSOS, Schwamb et al., 2019) took near-simultaneous <em>g-</em>, <em>r-</em> and <em>J-band</em> broadband photometry of a sample of KBOs with unprecedented precision using the Gemini North telescope. As with previous colour surveys (e.g. Tegler et al., 2016), they showed abimodal colour distribution in optical / near-infrared colours for the dynamically ‘hot’ population. We split this colour distribution into the ‘neutral’ coloured population with <em>(</em><em>g−r</em><em>)</em> < 0.75 and the ‘red’ coloured populationwith <em>(</em><em>g−r</em><em>)</em> ≥ 0.75.</p> <p>The preciseness of the colour measurements of Col-OSSOS has allowed the identification of several KBOs with outlying surface colours. These objects separated out from the rest of the neutral cloud in <em>(</em><em>g−r</em><em>)</em> versus <em>(r−J</em><em>)</em> colours, with <em>(</em><em>g−r</em><em>)</em> colour near solar colour. Using the Gemini North telescope in Hawaii we have taken extra photometry in the <em>i</em><em>−</em> and <em>z−</em><em>bands</em> for three of these objects (2013 JE64, 2013 JR65 and 2014 UL225). These additional filter observations will allow us to identify any possible broadband absorption features on these object’s surfaces that may have caused their outlying surface colours. Asteroid interloper 2004 EW95 (Seccull et al., 2018), along with some Jupiter Trojans and C-type asteroids (Bus & Binzel, 2002; DeMeo & Carry,2013) have been shown to have similar near solar neutral surfaces. In this presentation we will report resultsof the <em>griz</em> photometry of 2013 JE64, 2013 JR65 and 2014 UL225. We will make comparisons between these results and the photometry of previously identified outlying KBOs and comment on any possible similarities.</p> <p><strong>References</strong></p> <p>Bus, S. J., & Binzel, R. P. 2002, Icarus, 158, 146<br />DeMeo, F. E., & Carry, B. 2013, Icarus, 226, 723<br />Schwamb, M. E., Bannister, M. T., Marsset, M., et al. 2019, ApJS, 243, 12<br />Seccull, T., Fraser, W. C., Puzia, T. H., Brown, M. E., & Schönebeck, F. 2018, ApJ, Letters, 855, L26<br />Tegler, S. C., Romanishin, W., Consolmagno, G. J., & J., S. 2016, AJ, 152, 210</p>

Near-Infrared Color Properties of Kuiper Belt Objects and Centaurs: Final Results from the ESO Large Program

2006 ◽  
Vol 131 (3) ◽  
pp. 1851-1863 ◽  
Author(s):  
Audrey Delsanti ◽  
Nuno Peixinho ◽  
Hermann Boehnhardt ◽  
Antonella Barucci ◽  
Frédéric Merlin ◽  
...  
Keyword(s):  
Near Infrared ◽  
Kuiper Belt ◽  
Kuiper Belt Objects ◽  
Color Properties ◽  
Large Program

scholarly journals Near-infrared Spectral Evolution of the Type Ia Supernova 2014J in the Nebular Phase: Implications for the Progenitor System

2018 ◽  
Vol 861 (2) ◽  
pp. 119 ◽  
Author(s):  
T. R. Diamond ◽  
P. Hoeflich ◽  
E. Y. Hsiao ◽  
D. J. Sand ◽  
G. Sonneborn ◽  
...  
Keyword(s):  
Near Infrared ◽  
Spectral Evolution ◽  
Type Ia Supernova ◽  
Type Ia ◽  
Infrared Spectral

scholarly journals NEAR-INFRARED SPECTRA OF CENTAURS AND KUIPER BELT OBJECTS

2007 ◽  
Vol 135 (1) ◽  
pp. 55-67 ◽  
Author(s):  
K. M. Barkume ◽  
M. E. Brown ◽  
E. L. Schaller
Keyword(s):  
Infrared Spectra ◽  
Near Infrared ◽  
Kuiper Belt ◽  
Kuiper Belt Objects ◽  
Near Infrared Spectra

Metastructures for the Giant Enhancement of Raman Scattering in the Near Infrared Spectral Range

JETP Letters ◽  
2020 ◽  
Vol 112 (1) ◽  
pp. 31-36
Author(s):  
V. I. Kukushkin ◽  
V. E. Kirpichev ◽  
E. N. Morozova ◽  
V. V. Solov’ev ◽  
Ya. V. Fedotova ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Spectral Range ◽  
Near Infrared ◽  
Infrared Spectral Range ◽  
Infrared Spectral

scholarly journals ALD Deposited ZnO:Al Films on Mica for Flexible PDLC Devices

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1011
Author(s):  
Dimitre Z. Dimitrov ◽  
Zih Fan Chen ◽  
Vera Marinova ◽  
Dimitrina Petrova ◽  
Chih Yao Ho ◽  
...  
Keyword(s):  
Near Infrared ◽  
Atomic Layer ◽  
Optical Transmittance ◽  
Force Microscopy ◽  
Flexible Polymer ◽  
Layer Deposition ◽  
Polymer Dispersed ◽  
Muscovite Mica ◽  
Infrared Spectral ◽  
Continuous Bending

In this work, highly conductive Al-doped ZnO (AZO) films are deposited on transparent and flexible muscovite mica substrates by using the atomic layer deposition (ALD) technique. AZO-mica structures possess high optical transmittance at visible and near-infrared spectral range and retain low electric resistivity, even after continuous bending of up to 800 cycles. Structure performances after bending tests have been supported by atomic force microscopy (AFM) analysis. Based on performed optical and electrical characterizations AZO films on mica are implemented as transparent conductive electrodes in flexible polymer dispersed liquid crystal (PDLC) devices. The measured electro-optical characteristics and response time of the proposed devices reveal the higher potential of AZO-mica for future ITO-free flexible optoelectronic applications.

scholarly journals Phenotypic and genetic variation of ultraviolet–visible-infrared spectral wavelengths of bovine meat

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Giovanni Bittante ◽  
Simone Savoia ◽  
Alessio Cecchinato ◽  
Sara Pegolo ◽  
Andrea Albera
Keyword(s):  
Meat Quality ◽  
Genetic Improvement ◽  
Near Infrared ◽  
Infrared Region ◽  
Phenotypic Variance ◽  
Quality Traits ◽  
Meat Quality Traits ◽  
Infrared Spectral ◽  
Portable Spectrometers ◽  
Absorbance Spectra

AbstractSpectroscopic predictions can be used for the genetic improvement of meat quality traits in cattle. No information is however available on the genetics of meat absorbance spectra. This research investigated the phenotypic variation and the heritability of meat absorbance spectra at individual wavelengths in the ultraviolet–visible and near-infrared region (UV–Vis-NIR) obtained with portable spectrometers. Five spectra per instrument were taken on the ribeye surface of 1185 Piemontese young bulls from 93 farms (13,182 Herd-Book pedigree relatives). Linear animal model analyses of 1481 single-wavelengths from UV–Vis-NIRS and 125 from Micro-NIRS were carried out separately. In the overlapping regions, the proportions of phenotypic variance explained by batch/date of slaughter (14 ± 6% and 17 ± 7%,), rearing farm (6 ± 2% and 5 ± 3%), and the residual variances (72 ± 10% and 72 ± 5%) were similar for the UV–Vis-NIRS and Micro-NIRS, but additive genetics (7 ± 2% and 4 ± 2%) and heritability (8.3 ± 2.3% vs 5.1 ± 0.6%) were greater with the Micro-NIRS. Heritability was much greater for the visible fraction (25.2 ± 11.4%), especially the violet, blue and green colors, than for the NIR fraction (5.0 ± 8.0%). These results allow a better understanding of the possibility of using the absorbance of visible and infrared wavelengths correlated with meat quality traits for the genetic improvement in beef cattle.

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