A5015039212- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astrophysics and Star Formation Studies
- Astro and Planetary Science
- Geology and Paleoclimatology Research
- Astronomical Observations and Instrumentation
- Pleistocene-Era Hominins and Archaeology
- Gamma-ray bursts and supernovae
- Geological formations and processes
- Astrophysical Phenomena and Observations
- Adaptive optics and wavefront sensing
- Botany and Plant Ecology Studies
- Calibration and Measurement Techniques
- Landslides and related hazards
- Pulsars and Gravitational Waves Research
- Archaeology and ancient environmental studies
- Marine and environmental studies
- Planetary Science and Exploration
- Space Exploration and Technology
- Astrophysics and Cosmic Phenomena
- Evolution and Paleontology Studies
- Galaxies: Formation, Evolution, Phenomena
- History and Developments in Astronomy
- Solar and Space Plasma Dynamics
- Isotope Analysis in Ecology
Emory University
2024
University of Warwick
2015-2024
Boston University
2006-2024
Children's Healthcare of Atlanta
2024
Thomas Jefferson University
2024
University of Delaware
2022
Biotechnology Institute
2022
North Eastern University
2022
Oregon State University
2022
Florida Medical Entomology Laboratory
2020-2021
The SuperWASP cameras are wide‐field imaging systems at the Observatorio del Roque de los Muchachos on island of La Palma in Canary Islands, and Sutherland Station South African Astronomical Observatory. Each instrument has a field view some 482 deg2 with an angular scale 13 7 pixel−1, is capable delivering photometry accuracy better than 1% for objects having V∼7.0–11.5. Lower quality data brighter V∼15.0 stored project archive. systems, while designed to monitor fields high cadence,...
Aims. Pointed observations with XMM-Newton provide the basis for creating catalogues of X-ray sources detected serendipitously in each field. This paper describes creation and characteristics 2XMM catalogue.
During its close approach to Earth, comet C/Hyakutake 1996 B2 was observed at extreme ultraviolet and x-ray wavelengths with the Röntgen X-ray Satellite Rossi Timing Explorer. The emission morphology symmetric respect a vector from comet's nucleus toward sun, but not around direction of motion interplanetary dust. A slowly varying large impulsive event that varied on time scales 1 2 hours were observed. An interaction between solar wind/solar magnetic field seems be most likely mechanism for...
Context. Several competing scenarios for planetary-system formation and evolution seek to explain how hot Jupiters came be so close their parent stars. Most planetary parameters evolve with time, making it hard distinguish between models. The obliquity of an orbit respect the stellar rotation axis is thought more stable than other such as eccentricity. planets, date, appear aligned axis; few misaligned planets far detected are massive (> 2MJ).
We report on the discovery of WASP-12b, a new transiting extrasolar planet with $R_{\rm pl}=1.79 \pm 0.09 R_J$ and $M_{\rm pl}=1.41 0.1 M_J$. The host star properties were derived from Monte Carlo Markov Chain analysis transit photometry radial velocity data. Furthermore, by comparing stellar spectrum theoretical spectra evolution models, we determined that is super-solar metallicity ([M/H]$=0.3^{+0.05}_{-0.15}$), late-F (T$_{\rm eff}=6300^{+200}_{-100}$ K) which evolving off zero age main...
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not.The documents may come from teaching institutions in France abroad, public private centers.L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de scientifiques niveau recherche, publiés ou non, émanant des établissements d'enseignement recherche français étrangers, laboratoires publics privés.
The WASP (Wide Angle Search for Planets) project is an exoplanet transit survey that has been automatically taking wide field images since 2004. Two instruments, one in La Palma and the other South Africa, continually monitor night sky, building up light curves of millions unique objects. These are used to search characteristics exoplanetary transits. This first public data release (DR1) archive makes available all curve from 2004 2008 both Northern Southern hemispheres. A web interface...
We have detected low-amplitude radial-velocity variations in two stars, USNO-B1.0 1219-0005465 (GSC 02265-00107 = WASP-1) and 0964-0543604 00522-01199 WASP-2). Both stars were identified as being likely host of transiting exoplanets the 2004 SuperWASP wide-field transit survey. Using newly-commissioned spectrograph SOPHIE at Observatoire de Haute-Provence, we found that both objects exhibit reflex orbital with amplitudes characteristic planetary-mass companions in-phase photometric orbits....
We describe the Next Generation Transit Survey (NGTS), which is a ground-based project searching for transiting exoplanets orbiting bright stars. NGTS builds on legacy of previous surveys, most notably WASP, and designed to achieve higher photometric precision hence find smaller planets than have previously been detected from ground. It also operates in red light, maximizing sensitivity late K early M dwarf The survey specifications call 0.1 per cent light over an instantaneous field view...
We present near-UV transmission spectroscopy of the highly irradiated transiting exoplanet WASP-12b, obtained with Cosmic Origins Spectrograph on Hubble Space Telescope. The spectra cover three distinct wavelength ranges: NUVA (2539-2580 {\AA}), NUVB (2655-2696 and NUVC (2770-2811 {\AA}). Three independent methods all reveal enhanced transit depths attributable to absorption by resonance lines metals in exosphere WASP-12b. Light curves total counts ranges show a detection at 2.5{\sigma}...
We report the discovery of WASP-3b, third transiting exoplanet to be discovered by WASP and SOPHIE collaboration. WASP-3b transits its host star USNO-B1.0 1256−0285133 every 1.846 834 ± 0.000 002 d. Our high-precision radial velocity measurements present a variation with amplitude characteristic planetary-mass companion in phase light curve. Adaptive optics imaging shows no evidence for nearby stellar companions, line-bisector analysis excludes faint, unresolved binarity activity as cause...
Most of our knowledge extrasolar planets rests on precise radial-velocity measurements, either for direct detection or confirmation the planetary origin photometric transit signals. This has limited exploration parameter space exoplanet hosts to solar- and later-type, sharp-lined stars. Here we extend realm stars with known companions include hot, fast-rotating Planet-like transits have previously been reported in light curve obtained by SuperWASP survey A5 star HD 15082 (WASP–33; V= 8.3, v...
We report the discovery of transiting giant planet WASP-17b, least-dense currently known. It is 1.6 Saturn masses but 1.5-2 Jupiter radii, giving a density 6-14 per cent that Jupiter. WASP-17b in 3.7-day orbit around sub-solar metallicity, V = 11.6, F6 star. Preliminary detection Rossiter-McLaughlin effect suggests retrograde (lambda ~ -150 deg), indicative violent history involving planet-planet or star-planet scattering. WASP-17b's bloated radius could be due to tidal heating resulting...
Extended gas clouds have been previously detected surrounding the brightest known close-in transiting hot Jupiter exoplanets, HD 209458 b and 189733 b; we observed distant but more extreme system, WASP-12, with Hubble Space Telescope (HST). Near-UV (NUV) transits up to three times deeper than optical transit of WASP-12 reveal extensive diffuse gas, extending well beyond Roche lobe. The distribution absorbing varies between visits. deepest NUV are at wavelength ranges strong stellar...
Department of Health, along with professional bodies, formulate guidelines for the introduction genetic screening programmes.
We present a fast and efficient hybrid algorithm for selecting exoplanetary candidates from wide-field transit surveys. Our method is based on the widely-used SysRem Box Least-Squares (BLS) algorithms. Patterns of systematic error that are common to all stars frame mapped eliminated using algorithm. The remaining errors caused by spatially localised flat-fielding other quantified boxcar-smoothing method. show dimensions search-parameter space can be reduced greatly carrying out an initial...
S ummary The East Anglian Pleistocene succession records eight temperate stages with forest and also interstadials in two of the intervening cold stages. histories these are described. through tree genera involved considered. assemblages each four substages (pre‐temperate, early‐temperate, late‐temperate, post‐temperate) compared. development heath is examined. Floristic phytogeographic changes indicated by palaeobotanical evidence give information on Tertiary‐relic extinctions, have a...
We report on the discovery of a new extremely short period transiting extrasolar planet, WASP-19b. The planet has mass Mpl = 1.15 ± 0.08 MJ, radius Rpl 1.31 0.06 RJ, and orbital P 0.7888399 0.0000008 days. Through spectroscopic analysis, we determine host star to be slightly super-solar metallicity ([M/H] 0.1 dex) G-dwarf with Teff 5500 100 K. In addition, detect periodic, sinusoidal flux variations in light curve which are used derive rotation for Prot 10.5 0.2 relatively stellar suggests...