My Higher Self: Elizabeth Bishop and the Endurance of Emerson

While there exists some scholarship affirming the aesthetic and intellectual connections between transcendentalism and the poetry of Elizabeth Bishop, there is to date no substantial study of what role Ralph Waldo Emerson singularly played in the inheritance of that tradition. This essay seeks to validate Emerson as Bishop\u27s literary parentage, an influence that, though not immediately identifiable, greatly shaped her creative process. In so doing, it addresses the critical mistakes which have prevented a thorough discussion of Emerson\u27s relevance and, moreover, negatively dominated the imagination of Bishop scholarship. As an exploration of the writers\u27 shared iconography, their mutual metaphors, the following traces three comsubjects: nature, language, and vision

197 Candidates and 102 New Validated Planets in C0-C10 of K2

Since 2014, the K2 mission has observed large portions of the ecliptic plane in search of transiting planets, and thus far discovered over 500 planet candidates in the first 10 campaigns. With observations planned up to at least campaign 16, many more planet candidates will continue to be discovered. We present here our identification of 197 planet candidates suitable for validation from campaigns 0-10 of the K2 mission. We subject these planets to a validation process in order to calculate the false positive probability (FPP), and find that 102 are validated (FPP < 0.001), 61 remain candidates (0.001 < FPP), and 34 are of an unknown disposition (we were unable to or chose not to report the false positive probability). Of the 102 newly validated planets, 32 have already been validated elsewhere, 37 have merely been identified as candidates elsewhere, and 33 have never been identified before. We describe the process of data reduction, candidate identification, and validation. We also explore the demographics of the newly validated planets. This research, in addition to dramatically increasing the population of validated K2 planets, will also provide new targets for follow-up observations, as well as serve as a framework for validating candidates from upcoming K2 campaigns and candidates identified through the Transiting Exoplanet Survey Satellite (TESS), expected to launch in early to mid 2018

Detecting Exomoons Via Doppler Monitoring of Directly Imaged Exoplanets

Recently, Teachey, Kipping, and Schmitt (2018) reported the detection of a candidate exomoon, tentatively designated Kepler-1625b I, around a giant planet in the Kepler field. The candidate exomoon would be about the size and mass of Neptune, considerably larger than any moon in our Solar System, and if confirmed, would be the first in a new class of giant moons or binary planets. Motivated by the large mass ratio in the Kepler-1625b planet and satellite system, we investigate the detectability of similarly massive exomoons around directly imaged exoplanets via Doppler spectroscopy. The candidate moon around Kepler-1625b would induce a radial velocity signal of about 200 m/s on its host planet, large enough that similar moons around directly imaged planets orbiting bright, nearby stars might be detected with current or next generation instrumentation. In addition to searching for exomoons, a radial velocity survey of directly imaged planets could reveal the orientations of the planets' spin axes, making it possible to identify Uranus analogs.Comment: 15 pages, 8 figures, 2 tables. Accepted for publication in A

Plenoptic Imager for Automated Surface Navigation

An electro-optical imaging device is capable of autonomously determining the range to objects in a scene without the use of active emitters or multiple apertures. The novel, automated, low-power imaging system is based on a plenoptic camera design that was constructed as a breadboard system. Nanohmics proved feasibility of the concept by designing an optical system for a prototype plenoptic camera, developing simulated plenoptic images and range-calculation algorithms, constructing a breadboard prototype plenoptic camera, and processing images (including range calculations) from the prototype system. The breadboard demonstration included an optical subsystem comprised of a main aperture lens, a mechanical structure that holds an array of micro lenses at the focal distance from the main lens, and a structure that mates a CMOS imaging sensor the correct distance from the micro lenses. The demonstrator also featured embedded electronics for camera readout, and a post-processor executing image-processing algorithms to provide ranging information