Robert Morris
A5063674755- Stellar, planetary, and galactic studies
- Astronomy and Astrophysical Research
- Astro and Planetary Science
- Paranormal Experiences and Beliefs
- Astronomical Observations and Instrumentation
- Astrophysics and Star Formation Studies
- Social Policy and Reform Studies
- Religious Studies and Spiritual Practices
- Gamma-ray bursts and supernovae
- Retirement, Disability, and Employment
- Jungian Analytical Psychology
- Migration, Aging, and Tourism Studies
- Space Exploration and Technology
- Social Work Education and Practice
- History and Developments in Astronomy
- Art, Politics, and Modernism
- Planetary Science and Exploration
- Transportation Planning and Optimization
- Gender, Labor, and Family Dynamics
- Geriatric Care and Nursing Homes
- Musicology and Musical Analysis
- Phenothiazines and Benzothiazines Synthesis and Activities
- Music Technology and Sound Studies
- Labor Movements and Unions
- Race, History, and American Society
Ames Research Center
2012-2023
Search for Extraterrestrial Intelligence
2013-2023
University of Rochester
2020
Eastman Chemical Company (Germany)
2020
Oceanography Society
2018
Keene State College
2016
Naval Information Warfare Center Pacific
2009-2013
South College
2010
Wheaton College - Massachusetts
2001
Brandeis University
1969-1997
New transiting planet candidates are identified in 16 months (2009 May-2010 September) of data from the Kepler spacecraft.Nearly 5000 periodic transit-like signals vetted against astrophysical and instrumental false positives yielding 1108 viable new candidates, bringing total count up to over 2300.Improved vetting metrics employed, contributing higher catalog reliability.Most notable is noise-weighted robust averaging multiquarter photo-center offsets derived difference image analysis that...
We report the distribution of planets as a function planet radius (R_p), orbital period (P), and stellar effective temperature (Teff) for P < 50 day orbits around GK stars. These results are based on 1,235 (formally "planet candidates") from Kepler mission that include nearly complete set detected small 2 Earth radii (Re). For each 156,000 target stars we assess detectability R_p P. also correct geometric probability transit, R*/a. consider first within "solar subset" having Teff = 4100-6100...
Kepler provides light curves of 156,000 stars with unprecedented precision. However, the raw data as they come from spacecraft contain significant systematic and stochastic errors. These errors, which include discontinuities, trends, outliers, obscure astrophysical signals in curves. To correct these errors is task Presearch Data Conditioning (PDC) module analysis pipeline. The original version PDC did not meet extremely high performance requirements for detection miniscule planet transits...
We report on the orbital architectures of Kepler systems having multiple-planet candidates identified in analysis data from first six quarters and reported by Batalha et al. (2013). These show 899 transiting planet 365 provide a powerful means to study statistical properties planetary systems. Using generic mass–radius relationship, we find that only two pairs planets these candidate (out 761 total) appear be Hill-unstable orbits, indicating ∼96% are correctly interpreted as true little...
With the unprecedented photometric precision of Kepler Spacecraft, significant systematic and stochastic errors on transit signal levels are observable in data. These errors, which include discontinuities, outliers, trends other instrumental signatures, obscure astrophysical signals. The Presearch Data Conditioning (PDC) module data analysis pipeline tries to remove these while preserving planet transits astrophysically interesting completely new noise stellar variability regime observed...
The space mission Kepler provides us with long and uninterrupted photometric time series of red giants. We are now able to probe the rotational behaviour in their deep interiors using observations mixed modes. aim measure splittings giants derive scaling relations for rotation related seismic fundamental stellar parameters. have developed a dedicated method automated measurements large number Ensemble asteroseismology, namely examination at different stages evolution, allows global...
We present 2,241 exoplanet candidates identified with data from the Transiting Exoplanet Survey Satellite (TESS) during its two-year prime mission. list these in TESS Objects of Interest (TOI) Catalog, which includes both new planet found by and previously-known planets recovered observations. describe process used to identify TOIs investigate characteristics candidates, discuss some notable discoveries. The TOI Catalog an unprecedented number small around nearby bright stars, are...
\We present the sixth catalog of Kepler candidate planets based on nearly 4 years high precision photometry. This builds legacy previous catalogs released by project and includes 1493 new Objects Interest (KOIs) which 554 are planet candidates, 131 these candidates have best fit radii <1.5 R_earth. brings total number KOIs to 7305 4173 respectively. We suspect that many at low signal-to-noise limit may be false alarms created instrumental noise, discuss our efforts identify such objects....
We present a detailed spectroscopic study of 93 solar-type stars that are targets the NASA/Kepler mission and provide chemical composition each target. find overall metallicity is well-represented by Fe lines. Relative abundances light elements (CNO) alpha-elements generally higher for low-metallicity stars. Our analysis benefits from accurately measured surface gravity asteroseismic Kepler curves. The log g parameter known to better than 0.03 dex held fixed in analysis. compare our Teff...
We present the Kepler Object of Interest (KOI) catalog transiting exoplanets based on searching four years time series photometry (Data Release 25, Q1-Q17). The contains 8054 KOIs which 4034 are planet candidates with periods between 0.25 and 632 days. Of these candidates, 219 new in this include two multi-planet systems (KOI-82.06 KOI-2926.05), ten high-reliability, terrestrial-size, habitable zone candidates. This was created using a tool called Robovetter automatically vets DR25 Threshold...
The Kepler mission discovered 2842 exoplanet candidates with 2 years of data. We provide updates to the planet candidate sample based upon 3 (Q1-Q12) Through a series tests exclude false-positives, primarily caused by eclipsing binary stars and instrumental systematics, 855 additional planetary have been discovered, bringing total number known 3697. revised transit parameters accompanying posterior distributions on Markov Chain Monte Carlo algorithm for cumulative catalogue Objects Interest....
We aim to describe the oscillation power excess observed in Kepler red giants, and investigate empirical scaling relations governing these parameters. From scalings relations, we derive new physical properties of giant oscillations. Various different methods were compared order validate processes reliable output values. For consistency, a single method was then used determine for relevant global asteroseismic parameters: mean mode height, height background signal superimposed on excess,...
We present a method to confirm the planetary nature of objects in systems with multiple transiting exoplanet candidates. This involves Fourier-Domain analysis deviations transit times from constant period that result dynamical interactions within system. The combination observed anti-correlations and mass constraints stability allow us claim discovery four Kepler-25, Kepler-26, Kepler-27, Kepler-28, containing eight planets one additional planet candidate.
We present results of the final Kepler Data Processing Pipeline search for transiting planet signals in full 17-quarter primary mission data set. The includes a total 198,709 stellar targets, which 112,046 were observed all 17 quarters and 86,663 fewer than quarters. report on 17,230 targets at least one transit signature is identified that meets specified detection criteria: periodicity, minimum three events, statistic (i.e., signal-to-noise ratio) excess threshold, passing grade...
Kepler-16 is an eccentric low-mass eclipsing binary with a circumbinary transiting planet. Here we investigate the angular momentum of primary star, based on Kepler photometry and Keck spectroscopy. The star's rotation period 35.1 +/- 1.0 days, its projected obliquity respect to stellar orbit 1.6 2.4 degrees. Therefore three largest sources momentum---the orbit, planetary primary's rotation---are all closely aligned. This finding supports formation scenario involving accretion from single...
Ultra-short-period (USP) exoplanets have orbital periods shorter than one day. Precise masses and radii of USPs could provide constraints on their unknown formation evolution processes. We report the detection characterization USP planet GJ 367b using high precision photometry radial velocity observations. orbits a bright (V-band magnitude = 10.2), nearby, red (M-type) dwarf star every 7.7 hours. has radius $0.718 \pm 0.054$ Earth-radii, mass $0.546 0.078$ Earth-masses, making it sub-Earth....
We present early time light curves of Type Ia supernovae observed in the first six sectors TESS data. Ten these were discovered by ASAS-SN, seven ATLAS, ZTF, and one \textit{Gaia}. For nine SNe with sufficient dynamic range ($>$3.0 mag from detection to peak), we fit power law models search for signatures companion stars. find a diversity curve shapes, although most our sources are consistent fireball where flux increases $\propto t^2$. Three SN display flatter rise t$. do not any evidence...
We report the discovery of 1.008-day, ultra-short period (USP) super-Earth HD 213885b (TOI-141b) orbiting bright ($V=7.9$) star 213885 (TOI-141, TIC 403224672), detected using photometry from recently launched TESS mission. Using FEROS, HARPS and CORALIE radial-velocities, we measure a precise mass $8.8\pm0.6$ $M_\oplus$ for this $1.74 \pm 0.05$ $R_\oplus$ exoplanet, which provides enough information to constrain its bulk composition, is similar Earth's but enriched in iron. The radius,...
We report the first confirmation of a hot Jupiter discovered by Transiting Exoplanet Survey Satellite (TESS) mission: HD 202772A b. The transit signal was detected in data from TESS Sector 1, and confirmed to be planetary origin through radial-velocity measurements. b is orbiting mildly evolved star with period 3.3 days. With an apparent magnitude V = 8.3, among brightest known host Jupiter. Based on 27days photometry, radial velocity CHIRON HARPS spectrographs, planet has mass 1.008+/-0.074...
Abstract Young exoplanets are snapshots of the planetary evolution process. Planets that orbit stars in young associations particularly important because age system is well constrained. We present discovery a transiting planet larger than Neptune but smaller Saturn 45 Myr Tucana–Horologium moving group. The host star visual binary, and our follow-up observations demonstrate orbits G6V primary component, DS Tuc A (HD 222259A, TIC 410214986). first identified transits using photometry from...
We analyze the phase curve of short-period transiting hot Jupiter system WASP-19, which was observed by Transiting Exoplanet Survey Satellite ($TESS$) in Sector 9. WASP-19 is one only five exoplanet systems with full-orbit measurements at both optical and infrared wavelengths. measure a secondary eclipse depth $470^{+130}_{-110}$ ppm detect strong atmospheric brightness modulation signal semi-amplitude $319\pm51$ ppm. No significant offset detected between substellar point region maximum on...
Describes a computer program written for the UNIX time-sharing system which reduces by several orders of magnitude task finding words in document contain typographical errors. The is adaptive sense that it uses statistics from itself its analysis. In first pass through document, table diagram and trigram frequencies prepared. second breaks out individual compares diagrams trigrams each word with table. An index given to reflects hypothesis were produced same source are sorted decreasing...