Research Gallery

Probability map of the fraction of symmetric island twotinos (fS) and asymmetric twotinos in the leading island (fL), constrained by the observed population fractions of the symmetric and leading asymmetric (...more)

Rotation period and spin rate vs diameter for the FOSSIL JTs (orange dots). The same is shown for previously measured JTs (green dots) and MBAs as well (the background gray (...more)

Lightcurves of an occultation of a background star by Pluto observed on 15 Aug. 2018 at OAN, SPM in Baja California, México. The lightcurves were collected at a cadence of (...more)

Spectral energy distribution (wavelength vs. flux density) of the debris disc host star HD 105. Data points are coloured by wavelength regime: green for optical/near-infrared, blue for mid-infrared (including the (...more)

ALMA Band 6 (1.3mm) naturally weighted image of HD 105, a young pre-main sequence star with a bright debris disc. The disc is spatially resolved, with a radius of ~ (...more)

Plot of distance vs. disc radius for a sample of 97 spatially resolved debris discs. The colour of each data point denotes the photospheric temperature of the host star. The (...more)

Plot of stellar luminosity vs. disc temperature for a sample of 97 spatially resolved debris discs, taken from Marshall et al. (2021a). The dust temperature is plotted as a ratio (...more)

Plot of stellar luminosity vs. disc radius for a sample of 97 spatially resolved debris discs, taken from Marshall et al. (2021a). The vertical error bars denote the width of (...more)

The number of new visible Jupiter Family Comets (JFCs) produced by each mean motion resonance (MMR) with Neptune, in our numerical simulations including the 34 largest dwarf planets (DPs, red (...more)

A figure representing the different possible combinations of the contributions of each of the three populations of the Kuiper belt (Classical, Resonant, and Scattering), to the total Jupiter Family Comet (...more)

Diffusion is computed after a frequency analysis of thousands of test particles. Bluer colors are for stable orbits, redder colors indicate unstable ones. (...more)

g-r and r-z photometry of TNOs, showing the 3 unique surface types revealed by these three bands. (...more)

The three TAOS II enclosures at San Pedro Mártir Observatory. (...more)

TAOS II telescope at Site #2. (...more)

Weather map of the transiting hot Jupiter HD 189733b, illustrated by air pressure (color) and wind velocity fields (arrows), as viewed by someone who descends through the planetary atmosphere. The (...more)

Orbit diagram of the planetary system surrounding the K-dwarf star HD 40307. The grey area indicates the star's habitable zone. Notice that the outermost planet is right in the habitable (...more)

A back-scattered image of the E44 CAI from the CV3 Efremovka chondrite taken on a scanning electron microscope. This CAI is of particular interest because of the first demonstration of (...more)

This isochron diagram shows the inferred 41Ca/40Ca ratio in the E44 CAI from the Efremovka meteorite. 20 years ago, the former existence of 41Ca (half-life = 0.1 Myr) was first (...more)

Inferred 26Al/27Al ratios for spinel-hibonite spherules from Murchison and Paris and the probability density plot derived from the data. The overall 26Al/27Al range in the two groups of SHIBs is (...more)

Schematic of the theoretical model showing the dipole fields of a proto-star that are misaligned with both the stellar spin axis and the orbital plane of a hot Jupiter. Consequently, (...more)

Evolutionary tracks of planet forming at multiple planet traps at which rapid type I planetary migration is halted. Three types of traps are considered: dead zone (red lines), ice line (...more)

Gas (left panel) and dust (right panel) density maps of a face-on protoplanetary disk harboring a gas giant planet of 5 Jupiter masses. (...more)

Yields of ⁷Be, ¹⁰Be, ²⁶Al, ³⁶Cl, ⁴¹Ca, and ⁵³Mn for a chondritic chemistry and the spectral parameters p = 4 and ³He/¹H = 0.3. The yields are normalized to the (...more)

The upper plot illustrates our model, which shows a hot Jupiter orbiting a CTTS in a magnetospheric cavity of a protoplanetary disk. The initial orbit of the planet is set (...more)

Top left: SMA image of the 234-GHz continuum emission of Comet C/2002 T7 (LINEAR). The 1.3-mm continuum traces the dust distribution in the inner coma. The blue ellipse shown at (...more)

The Dust Buster mass spec assembled in our lab almost ready to analyze comet samples from the Stardust mission with high sensitivity and multi-element capability. (...more)