A5004372637- Astro and Planetary Science
- Astronomy and Astrophysical Research
- Planetary Science and Exploration
- Stellar, planetary, and galactic studies
- Photocathodes and Microchannel Plates
- Nuclear Physics and Applications
- Astrophysical Phenomena and Observations
- Spacecraft Design and Technology
- Ionosphere and magnetosphere dynamics
- Spacecraft and Cryogenic Technologies
- Space exploration and regulation
- Adaptive optics and wavefront sensing
- Solar and Space Plasma Dynamics
- Space Science and Extraterrestrial Life
- Particle Detector Development and Performance
- Calibration and Measurement Techniques
- Astrophysics and Star Formation Studies
- Atmospheric Ozone and Climate
- Radiation Detection and Scintillator Technologies
- Space Exploration and Technology
- Innovative Teaching and Learning Methods
- Opportunistic and Delay-Tolerant Networks
- Infrared Target Detection Methodologies
- Radiation Therapy and Dosimetry
- Astronomical Observations and Instrumentation
University of Leicester
2010-2024
University College London
2020
University of Oxford
2020
University of Surrey
2020
University of Bristol
2020
The Open University
2020
Cranfield University
2020
University of Manchester
2020
Leicester Royal Infirmary
2015
Queen's University Belfast
2011
Abstract Radioisotope power systems utilising americium-241 as a source of heat have been under development in Europe part European Space Agency funded programme since 2009. The aim is to develop all the building blocks that would enable launch and operate deep space planetary missions environments where use solar or alternative generation technologies challenging. Although some technical policy work activity predate ESA programme, maturity technology has now reached level it can be...
The Next Generation Transit Survey (NGTS) is a new ground-based sky survey designed to find transiting Neptunes and super-Earths. By covering at least sixteen times the area of Kepler we will small planets around stars that are sufficiently bright for radial velocity confirmation, mass determination atmospheric characterisation. NGTS instrument consist an array twelve independently pointed 20cm telescopes fitted with red-sensitive CCD cameras. It be constructed ESO Paranal Observatory,...
Abstract The Mercury Imaging X-ray Spectrometer is a highly novel instrument that designed to map Mercury’s elemental composition from orbit at two angular resolutions. By observing the fluorescence X-rays generated when solar-coronal and charged particles interact with surface regolith, MIXS will be able measure atomic of upper ∼10-20 μm on day-side. Through precipitating night-side, also determine dynamic interaction planet’s surrounding space environment. composed complementary elements:...
Spacecraft venturing to the outer planets and beyond—or onto planetary surface where available solar energy is reduced—benefit from longevity consistency of electrical thermal derived radioisotope sources. A review likely mission requirements concept studies small generating units (<10 We) reveals a potential opportunity for unit with an output around 1 We that can also supply some heat spacecraft aid control: thermoelectric heating unit. This power requirement cannot be achieved current US...
We describe the design of Lobster-ISS, an X-ray imaging all-sky monitor (ASM) to be flown as attached payload on International Space Station. Lobster-ISS is subject ESA Phase-A study which will begin in December 2001. With instantaneous field view 162 x 22.5 degrees, map almost complete sky every 90 minute ISS orbit, generating a confusion-limited catalogue ~250,000 sources 2 months. use focusing microchannel plate optics and gas proportional micro-well detectors; work currently underway...
Abstract The Next Generation Transit Survey (NGTS) is a new ground-based survey for transiting exoplanets. Our primary goal to find the first statistically-significant sample of Neptunes and super-Earths that are bright enough radial velocity confirmation. By measuring precise masses radii we will constrain bulk composition internal structure planets span transition between gas giants terrestrial planets. brightest exoplanets also be suitable atmospheric characterisation with large...
Abstract We present high‐sensitivity Hubble Space Telescope (HST) Cosmic Origins Spectrograph and HST Imaging measurements of atmospheric OI 130.4‐nm OI] 135.6‐nm emissions at Ganymede, which exhibit significant spatial temporal variability. These observations represent the first Ganymede using both leading trailing hemispheres within a single campaign, minimizing potential influence long‐term changes in Jovian plasma sheet or Ganymede's atmosphere on comparison two hemispheres. The mean...
Comprehensive maritime domain awareness includes detection, tracking, and identification of vessels, we describe work concerned with the detection tracking elements this problem. Millions vessels operate without means for their positions to be independently tracked, presenting a problem safety security life at sea. To date, visible wavelength imaging from space has been limited use vessel due poor area coverage provided by individual satellites. This situation is now changing. We present...
Acanthamoeba keratitis can cause devastating damage to the human cornea and is often difficult diagnose by routine clinical methods. In this preliminary study, we investigated whether may be distinguished from other common corneal pathogens through its autofluorescence response. Although only a small number of were studied, identification unique signature would indicate that spectroscopy as diagnostic method merits further investigation.Samples 7 (Escherichia coli, Staphylococcus aureus,...
The requirements for performance by planetary exploration missions are increasing. Landing at a single location to take data is no longer sufficient. Due the increasing cost, that provide mobile platforms can acquire displaced locations becoming more attractive. Landers have also had limited range due power limitations, lifetime of subsystems, and inability negotiate rough terrain. Center Space Nuclear Research has designed an instrumented platform detailed hundreds during its — Mars Hopper....
We report a high-resolution (R = 3000-4000) spectroscopic observation of the DA white dwarf G191-B2B in extreme-ultraviolet band 220-245 Å. A low-density, ionized He component is clearly present along line sight, which if completely interstellar implies ionization fraction considerably higher than typical local medium. However, some this material may be associated with circumstellar gas, has been detected by analysis C IV absorption-line doublet Hubble Space Telescope/Space Telescope Imaging...
Abstract. A comprehensive understanding of the solar wind interaction with Earth's coupled magnetosphere-ionosphere system requires an ability to observe charged particle environment and auroral activity from same platform, generating photon image data which are matched in time location. While unambiguous identification particles giving rise aurora a Low Earth Orbit satellite, obtaining adequate spatial coverage aurorae relatively limited field view current space bourne imaging systems much...
The various demands on funding agencies make it difficult to sustain the level of expenditure required provide broad range space astronomy missions that research community would like have available. Multi-billion pound/dollar observatories such Chandra, XMM-Newton and HST been enormously successful, but JWST has delayed plans for an equivalent large X-ray mission seem be on-hold. Furthermore, medium size ESA NASA only a small number opportunities over next decade. Much exciting important...
Astrodynamics is the study of motion artificial satellites and spacecraft, subject to both natural artificially induced forces. It combines celestial mechanics, attitude dynamics aspects positional astronomy describe spacecraft enable planning analysis missions. significant interdisciplinary interest with relevance physics, spaceflight engineering, but can be challenging deliver in an effective, engaging manner because often abstract nature some concepts, four-dimensional problems,...
Communication poses several problems, particularly to English second language (ESL) learners.In overcoming these some ESL learners employ communicative strategies.This study reports the efforts undertaken by Malaysian in enhancing their communication with native speakers during collaborative cross-cultural online activities through Astronomy Online Lab (AOL).This AOL module was utilized achieve twofold objectives namely students' skills and promoting knowledge exchange live discussions.29...
We describe the development of an imaging microchannel plate detector for a new class high resolution EUV spectrometer. The incorporates front MCP coated with CsI photocathode to enhance quantum efficiency, while rear MCP, supplied by Photonis SAS European Space Agency Technology Research Program, represents one first uses 6 micron pore device in astronomy. unique design charge division anode, Vernier readout, enabling it deliver spatial better than 15 microns FWHM. forms integral component...
The Lobster-ISS instrument is an X-ray all sky monitor proposed as attached payload on the zenith platform exposed facility of European Space Agency (ESA) Columbus module International Station (ISS). basic consists six microchannel plate telescopes, collectively providing wide-angle (22.5 x 162 sq.degree) astronomical imaging in 0.1 - 3.5 keV energy band. In this paper we describe computer modeling software underway at University Melbourne to provide accurate simulation operation its low...