Sarah Morrison
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View article: Effects of Outer Giant Planets on In Situ Formation of Inner Super-Earths
Effects of Outer Giant Planets on In Situ Formation of Inner Super-Earths Open
Recent studies have found an observational correlation between the presence of outer giant planets and inner super-Earths, which implies that outer giants do not suppress the formation of super-Earths. We simulate late-stage in situ planet…
View article: Complicated grief group therapy for community-residing persons diagnosed with serious mental illness
Complicated grief group therapy for community-residing persons diagnosed with serious mental illness Open
The traumatic death of a significant person is an under-appreciated adverse life event. Unresolved grief from traumatic death is associated with complicated grief (CG) in adulthood and both contribute to and sustain serious mental illness …
View article: Students’ Perception of Campus Safety and Security at Accra Technical University, Ghana
Students’ Perception of Campus Safety and Security at Accra Technical University, Ghana Open
To promote quality teaching and learning, higher educational institutions are working tirelessly towards achieving safe and secured environment. However not enough is known of students’ experiences and perception on safety and security on …
View article: Chains of Planets in Mean Motion Resonances Arising from Oligarchic Growth
Chains of Planets in Mean Motion Resonances Arising from Oligarchic Growth Open
Exoplanet systems with multiple planets in mean motion resonances have often been hailed as a signpost of disk-driven migration. Resonant chains like Kepler-223 and Kepler-80 consist of a trio of planets with the three-body resonant angle …
View article: Pilot Study: Understanding How DeafBlind People Make Meaning of their Avowed and Ascribed Identities
Pilot Study: Understanding How DeafBlind People Make Meaning of their Avowed and Ascribed Identities Open
The purpose of this pilot study is to understand how DeafBlind people make meaning of their avowed and ascribed identities and how they navigate the medical-pathological descriptions used to define them. Phenomenology was used with Glickma…
View article: Debris Disks in Multi-Planet Systems: Are Our Inferences Compromised by Unseen Planets?
Debris Disks in Multi-Planet Systems: Are Our Inferences Compromised by Unseen Planets? Open
Resolved debris disk features (e.g., warps, offsets, edges and gaps, azimuthal asymmetries, radially thickened rings, scale heights) contain valuable information about the underlying planetary systems, such as the posited planet's mass, se…
View article: Astro2020: Training the Future Generation of Computational Researchers
Astro2020: Training the Future Generation of Computational Researchers Open
The current disparity in computational knowledge is a critical hindrance to the diversity and success of the field. Recommendations are outlined for policies and funding models to enable the growth and retention of a new generation of comp…
View article: Gap formation in planetesimal discs via divergently migrating planets
Gap formation in planetesimal discs via divergently migrating planets Open
While many observed debris disks are thought to have gaps suggestive of the presence of planets, direct imaging surveys do not find many high mass planets in these systems. We investigate if divergent migration is a viable mechanism for fo…
View article: Dust And Gas In The Hd 95086 Planetary System
Dust And Gas In The Hd 95086 Planetary System Open
In our efforts to understand the formation and evolution of planetary systems and how other planetary systems relate to the Solar System, some of the best systems to study are those where we have detected both a planet (or planets) and a d…
View article: ALMA 1.3 mm Map of the HD 95086 System
ALMA 1.3 mm Map of the HD 95086 System Open
Planets and minor bodies such as asteroids, Kuiper-Belt objects, and comets are integral components of a planetary system. Interactions among them leave clues about the formation process of a planetary system. The signature of such interac…
View article: Nursing Students’ Perception of Childhood Lead Poisoning Risk Factors
Nursing Students’ Perception of Childhood Lead Poisoning Risk Factors Open
Background: Adverse effects on health in the environments are no trivial matter. Exposure to lead has had devastating consequences for health, especially for children. The purpose of this study was to investigate nursing students’ percepti…
View article: ORBITAL STABILITY OF MULTI-PLANET SYSTEMS: BEHAVIOR AT HIGH MASSES
ORBITAL STABILITY OF MULTI-PLANET SYSTEMS: BEHAVIOR AT HIGH MASSES Open
In the coming years, high-contrast imaging surveys are expected to reveal the characteristics of the population of wide-orbit, massive, exoplanets. To date, a handful of wide planetary mass companions are known, but only one such multi-pla…
View article: Investigating the impacts of field‐realistic exposure to a neonicotinoid pesticide on bumblebee foraging, homing ability and colony growth
Investigating the impacts of field‐realistic exposure to a neonicotinoid pesticide on bumblebee foraging, homing ability and colony growth Open
Summary The ability to forage and return home is essential to the success of bees as both foragers and pollinators. Pesticide exposure may cause behavioural changes that interfere with these processes, with consequences for colony persiste…
View article: Orbital Stability of Multi-Planet Systems: Behavior at High Masses
Orbital Stability of Multi-Planet Systems: Behavior at High Masses Open
In the coming years, high contrast imaging surveys are expected to reveal the characteristics of the population of wide-orbit, massive, exoplanets. To date, a handful of wide planetary mass companions are known, but only one such multi-pla…
View article: DEBRIS DISTRIBUTION IN HD 95086—A YOUNG ANALOG OF HR 8799
DEBRIS DISTRIBUTION IN HD 95086—A YOUNG ANALOG OF HR 8799 Open
HD 95086 is a young early-type star that hosts (1) a 5 MJ planet at the\nprojected distance of 56 AU revealed by direct imaging, and (2) a prominent\ndebris disk. Here we report the detection of 69 um crystalline olivine feature\nfrom the …