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We present a guide for the design and fabrication of a CMOS-compatible metamaterial microstructure as an absorber of visible light with exceptionally high absorption efficiency (~ 98%), for wavelengths 400nm-700nm. The structural parameters…

Optics · Physics 2023-02-28 Vivek Khichar , Nader Hozhabri , Ali R. Koymen

Nereid, Neptune's third largest satellite, lies in an irregular orbit and is the only outer satellite in the system (apart from Triton) that can be spectroscopically characterized with the current generation of Earth-based telescopes. We…

Earth and Planetary Astrophysics · Physics 2021-06-24 Benjamin N. L. Sharkey , Vishnu Reddy , Juan A. Sanchez , Matthew R. M. Izawa , Walter M. Harris

An important tracer of the origin and evolution of cometary ices is the comparison with ices found in dense clouds and towards Young Stellar Objects (YSOs). We present a survey of ices in the 2-5 micron spectra of 23 massive YSOs, taken…

Astrophysics of Galaxies · Physics 2022-12-29 A. C. A. Boogert , K. Brewer , A. Brittain , K. S Emerson

The study of the visible colours of the trans-Neptunian objects opened a discussion almost 20 years ago which, in spite of the increase in the amount of available data, seems far from subside. Visible colours impose constraints to the…

Earth and Planetary Astrophysics · Physics 2019-07-17 Alvaro Alvarez-Candal , Carmen Ayala-Loera , Ricardo Gil-Hutton , José Luis Ortiz , Pablo Santos-Sanz , René Duffard

The incorporation of impurities during the chemical synthesis of nanomaterials is usually uncontrolled and rarely reported because of the formidable challenge that constitutes measuring trace amounts of often light elements with sub…

Transparent conducting oxides (TCO) are emerging as possible alternative constituent materials to replace noble metals such as silver and gold for low-loss plasmonic and metamaterial (MMs) applications in the near infrared (NIR) regime. The…

We propose and describe plasmonic nanomaterials with unique optical properties. These nanostructured materials strongly attenuate light in a broad wavelength interval ranged from 400 nm to 5 um but exhibit a narrow transparency window…

Mesoscale and Nanoscale Physics · Physics 2014-06-11 Hui Zhang , Hilmi Volkan Demir , Alexander O. Govorov

Narrow band images covering strong emission lines are efficient to survey supernova remnants (SNRs) in nearby galaxies. Using the narrow band images provided by the Local Group Galaxy Survey we searched for SNRs in M33. Culling the objects…

High Energy Astrophysical Phenomena · Physics 2015-06-22 Jong Hwan Lee , Myung Gyoon Lee

Complex organic molecules (COMs) are known to be abundant toward some low-mass young stellar objects (YSOs), but how these detections relate to typical COM abundance are not yet understood. We aim to constrain the frequency distribution of…

Astrophysics of Galaxies · Physics 2015-06-19 Karin I. Oberg , Trish Lauck , Dawn Graninger

We analyze the shapes of the HI velocity profiles of The HI Nearby Galaxy Survey (THINGS) to study the phase structure of the neutral interstellar medium (ISM) and its relation to global galaxy properties. We use a method analogous to the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 R. Ianjamasimanana , W. J. G. de Blok , Fabian Walter , George H. Heald

Studies of the physical properties of Trans-Neptunian Objects (TNOs) are a powerful probe into the processes of planetesimal formation and solar system evolution. JWST will provide unique new capabilities for such studies. Here we outline…

Up to 90% of the chemical reactions during star formation occurs on ice surfaces, probably including the formation of complex organics. Only the most abundant ice species are however observed directly by infrared spectroscopy. This study…

Solar and Stellar Astrophysics · Physics 2015-05-13 Karin I. Oberg , Sandrine Bottinelli , Ewine F. van Dishoeck

The James Webb Space Telescope provides unprecedented information to study ices in protoplanetary disks. However, the saturation of ice bands in highly inclined disks hinders the measurement of ice abundances using classical spectroscopy.…

Centaurs with high orbital inclinations and perihelia (i > 60 degrees; q >= 15 au) are a small group of poorly understood minor planets that are predicted to enter the giant planet region of the Solar System from the inner Oort Cloud. As…

Earth and Planetary Astrophysics · Physics 2021-10-28 Tom Seccull , Wesley C. Fraser , Thomas Puzia

Recent observations (Burnes2002,Veillet2002,Margot2002a) have revealed an unexpectedly high binary fraction among the Trans-Neptunian Objects (TNOs) that populate the Kuiper Belt. The TNO binaries are strikingly different from asteroid…

Astrophysics · Physics 2007-05-23 Yoko Funato , Junichiro Makino , Piet Hut , Eiichiro Kokubo , Daisuke Kinoshita

In this work, we focused on observations of six trans-Neptunian objects (TNOs) whose apparent magnitudes are brighter than 20 mag. We present the results of astrometric and photometric observations of (134340) Pluto, (136108) Haumea,…

Earth and Planetary Astrophysics · Physics 2021-07-07 Alexander Baransky , Oleksandra Lukina , Serhii Borysenko

The Hyper Suprime-Cam Subaru Strategic Program (HSC-SSP) is currently the deepest wide- field survey in progress. The 8.2 m aperture of Subaru telescope is very powerful in detect- ing faint/small moving objects, including near-Earth…

The transneptunian region of the solar system is populated by a wide variety of icy bodies showing great diversity. The dwarf planet (136108) Haumea is among the largest TNOs and displays a highly elongated shape and hosts two moons,…

Earth and Planetary Astrophysics · Physics 2016-09-07 F. Gourgeot , B. Carry , C. Dumas , F. Vachier , F. Merlin , P. Lacerda , M. A. Barucci , J. Berthier
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