Amber Malpas
A5015161480- Stellar, planetary, and galactic studies
- Astro and Planetary Science
- Astrophysics and Star Formation Studies
- Astronomy and Astrophysical Research
- History and Developments in Astronomy
- Gamma-ray bursts and supernovae
- Advanced X-ray and CT Imaging
- Medical Imaging Techniques and Applications
- Radiation Dose and Imaging
University of Canterbury
2013-2022
We report the joint WASP/KELT discovery of WASP-167b/KELT-13b, a transiting hot Jupiter with 2.02-d orbit around $V$ = 10.5, F1V star [Fe/H] 0.1 $\pm$ 0.1. The 1.5 R$_{\rm Jup}$ planet was confirmed by Doppler tomography stellar line profiles during transit. place limit $<$ 8 M$_{\rm on its mass. is in retrograde sky-projected spin-orbit angle $\lambda -165^{\circ} \pm 5^{\circ}$. This agreement known tendency for orbits hotter stars to be more likely misaligned. WASP-167/KELT-13 one few...
We present the discovery of KELT-22Ab, a hot Jupiter from KELT-South survey. KELT-22Ab transits moderately bright ($V\sim 11.1$) Sun-like G2V star TYC 7518-468-1. The planet has an orbital period $P = 1.3866529 \pm 0.0000027 $ days, radius $R_{P} 1.285_{-0.071}^{+0.12}~R_{J}$, and relatively large mass $M_{P} 3.47_{-0.14}^{+0.15}~ M_{J}$. $R_{\star} 1.099_{-0.046}^{+0.079}~ R_{\odot}$, $M_{\star} 1.092_{-0.041}^{+0.045}~ M_{\odot}$, ${T_{\rm eff}\,} 5767_{-49}^{+50}~$ K, ${\log{g_\star}}...
A segmentation algorithm that assists material analysis in multi-energy computed tomography is presented. Segmentation typically used conjunction with quantitative algorithms (known as decomposition) to increase the total number of materials which can be discriminated and quantified. The illustrated here identifies voxels (in image domain) one three classes: air, soft tissues dense tissue or contrast pharmaceuticals. Two are chosen (the most least attenuating tissues) define boundaries...
We report the analysis of microlensing event OGLE-2017-BLG-1038, observed by Optical Gravitational Lensing Experiment, Korean Microlensing Telescope Network, and Spitzer telescopes. The is caused a giant source star in Galactic Bulge passing over large resonant binary lens caustic. availability space-based data allows full set physical parameters to be calculated. However, there exists an eightfold degeneracy parallax measurement. four best solutions correspond very-low-mass binaries near...