Dr. Christopher S. Moore Profile

Dr. Christopher S. Moore

Astrophysicist at Harvard-Smithsonian Ctr for Astrophysics

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Author

Publications (11)

Proceedings Article | 9 September 2019 Presentation + Paper

SmallSat solar axion and activity x-ray imager (SSAXI)

Jaesub Hong, Suzanne Romaine, Almus Kenter, Christopher Moore, Katharine Reeves, Brian Ramsey, Kiranmayee Kilaru, Julia Vogel, Jaime Ruz Armendariz, Hugh Hudson, Kerstin Perez

Proceedings Volume 11118, 1111810 (2019) https://doi.org/10.1117/12.2529781

KEYWORDS: X-rays, Solar energy, X-ray imaging, Quantum chromodynamics, Solar processes, CMOS sensors, Sensors, X-ray telescopes, Particles, Aluminium phosphide

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Proceedings Article | 9 September 2019 Presentation + Paper

SEEJ: SmallSat Exosphere Explorer of hot Jupiters

Scott Wolk, JaeSub Hong, Suzanne Romaine, Katja Poppenhaeger, Almus Kenter, Althea Moorhead, Dennis Gallagher, Christopher Moore, Martin Elvis, Ralph Kraft, Jeremy Drake, Vinay Kashyap, Elaine Winston, Bradford Wargelin, Ignazio Pillitteri, Diab Jerius, Mark Stahl, Bruce Wiegmann, Christopher Loghry

Proceedings Volume 11118, 111180E (2019) https://doi.org/10.1117/12.2529380

KEYWORDS: Jupiter, Stars, Planets, X-rays, X-ray detectors, Exoplanets, Atmospheric sciences, Magnetism, Atmospheric optics, Atmospheric sensing

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The first detected exoplanets found were "hot Jupiters"; these are large Jupiter-like planets in close orbits with their host star. The stars in these so-called "hot Jupiter systems" can have significant X-ray emission and the X-ray flux likely changes the evolution of the overall star-planetary system in at least two ways: (1) the intense high energy flux alters the structure of the upper atmosphere of the planet - in some cases leading to significant mass loss; (2) the angular momentum and magnetic field of the planet induces even more activity on the star, enhancing its X-rays, which are then subsequently absorbed by the planet. If the alignment of the systems is appropriate, the planet will transit the host star. The resulting drop in flux from the star allows us to measure the distribution of the low-density planetary atmosphere. We describe a science mission concept for a SmallSat Exosphere Explorer of hot Jupiters (SEEJ; pronounced "siege"). SEEJ will monitor the X-ray emission of nearby X-ray bright stars with transiting hot Jupiters in order to measure the lowest density portion of exoplanet atmospheres and the coronae of the exoplanet hosts. SEEJ will use revolutionary Miniature X-ray Optics (MiXO) and CMOS X-ray detectors to obtain sufficient collecting area and high sensitivity in a low mass, small volume and low-cost package. SEEJ will observe scores of transits occurring on select systems to make detailed measurements of the transit depth and shape which can be compared to out-of-transit behavior of the target system. The depth and duration of the flux change will allow us to characterize the exospheres of multiple hot Jupiters in a single year. In addition, the long baselines (covering multiple stellar rotation periods) from the transit data will allow us to characterize the temperature, flux and flare rates of the exoplanet hosts at an unprecedented level. This, in turn, will provide valuable constraints for models of atmospheric loss. In this contribution we outline the science of SEEJ and focus on the enabling technologies Miniature X-ray Optics and CMOS X-ray detectors.

Proceedings Article | 6 July 2018 Paper

Ultrathin protective coatings by atomic layer engineering for far ultraviolet aluminum mirrors

John Hennessy, April Jewell, Christopher Moore, Alexander Carver, Kunjithapatham Balasubramanian, Kevin France, Shouleh Nikzad

Proceedings Volume 10699, 1069902 (2018) https://doi.org/10.1117/12.2314185

KEYWORDS: Magnesium fluoride, Aluminum, Mirrors, Reflectivity, Atomic layer deposition, Optical coatings, Etching, Ultraviolet radiation, Thin film coatings, Oxides

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Proceedings Article | 21 September 2017 Paper

Atomic layer deposition and etching methods for far ultraviolet aluminum mirrors

John Hennessy, Christopher Moore, Kunjithapatham Balasubramanian, April Jewell, Christian Carter, Kevin France, Shouleh Nikzad

Proceedings Volume 10401, 1040119 (2017) https://doi.org/10.1117/12.2274633

KEYWORDS: Aluminum, Atomic layer deposition, Mirrors, Reflectivity, Focus stacking software, Etching, Laser induced fluorescence, Ultraviolet radiation, Oxides, Far ultraviolet

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Proceedings Article | 17 October 2016 Paper

Characterizing environmental effects on visible and UV reflectance of ALD-coated optics

Christian Carter, Christopher Moore, John Hennessy, April Jewell, Shouleh Nikzad, Kevin France

Proceedings Volume 9963, 99630V (2016) https://doi.org/10.1117/12.2238198

KEYWORDS: Reflectivity, Atomic layer deposition, UV optics, Mirrors, Optical coatings, Wafer-level optics, Laser induced fluorescence, Aluminum, Silicon, Magnesium fluoride

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Proceedings Article | 22 July 2016 Paper

Atomic Layer Deposited (ALD) coatings for future astronomical telescopes: recent developments

Christopher Samuel Moore, John Hennessy, April Jewell, Shouleh Nikzad, Kevin France

Proceedings Volume 9912, 99122U (2016) https://doi.org/10.1117/12.2232296

KEYWORDS: Atomic layer deposition, Reflectivity, Aluminum, Mirrors, Metals, Astronomy, Ultraviolet radiation, Magnesium fluoride, Oxides, Laser induced fluorescence

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Proceedings Article | 11 July 2016 Paper

The Miniature X-ray Solar Spectrometer (MinXSS) CubeSats: spectrometer characterization techniques, spectrometer capabilities, and solar science objectives

Christopher Moore, Thomas Woods, Amir Caspi, James Mason

Proceedings Volume 9905, 990509 (2016) https://doi.org/10.1117/12.2231945

KEYWORDS: Spectroscopy, X-rays, Spectroscopy, Ultraviolet radiation, Tolerancing, Imaging systems, Mirrors, Spectrographs, Sensors, Optical design, Distortion

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SPIE Journal Paper | 7 June 2016

Performance and prospects of far ultraviolet aluminum mirrors protected by atomic layer deposition

John Hennessy, Kunjithapatham Balasubramanian, Christopher Moore, April Jewell, Shouleh Nikzad, Kevin France, Manuel Quijada

JATIS, Vol. 2, Issue 04, 041206, (June 2016) https://doi.org/10.1117/12.10.1117/1.JATIS.2.4.041206

KEYWORDS: Aluminum, Atomic layer deposition, Reflectivity, Mirrors, Oxides, Optical coatings, Far ultraviolet, Thin films, Laser induced fluorescence, Ultraviolet radiation

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Proceedings Article | 24 August 2015 Paper

Current progress in the characterization of atomic layer deposited AlF3 for future astronomical ultraviolet mirror coatings

Christopher Samuel Moore, John Hennessy, Eliot Kersgaard, April Jewell, Shouleh Nikzad, Kevin France

Proceedings Volume 9601, 96010X (2015) https://doi.org/10.1117/12.2186723

KEYWORDS: Silicon, Reflectivity, Atomic layer deposition, Ultraviolet radiation, Polarization, Optical coatings, Mirrors, Aluminum, Surface roughness, Semiconducting wafers

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Proceedings Article | 24 July 2014 Paper

Recent developments and results of new ultraviolet reflective mirror coatings

Christopher Moore, John Hennessy, April Jewell, Shouleh Nikzad, Kevin France

Proceedings Volume 9144, 91444H (2014) https://doi.org/10.1117/12.2057272

KEYWORDS: Reflectivity, Aluminum, Silicon, Atomic layer deposition, Magnesium fluoride, Ultraviolet radiation, Optical coatings, Thin film coatings, Metals, Mirrors

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Proceedings Article | 26 September 2013 Paper

Flight performance and first results from the sub-orbital local interstellar cloud experiment (SLICE)

Kevin France, Nicholas Nell, Keri Hoadley, Robert Kane, Eric Burgh, Matthew Beasley, Rachel Bushinksy, Ted Schultz, Michael Kaiser, Christopher Moore, Jennifer Kulow, James Green

Proceedings Volume 8859, 885910 (2013) https://doi.org/10.1117/12.2023400

KEYWORDS: Clouds, Telescopes, Stars, Absorption, Sensors, Spectrographs, Calibration, Microchannel plates, Spectral resolution, Reflectivity

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Showing 5 of 11 publications

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