space-based photometry, as well as with long baseline, near-infrared However, the cooler secondary star is more evolved ($R_2=1.96R_{\o... KIC~8262223 is an eclipsing binary with a short orbital period ($P=1.61$ d). Sorry, you need to be a researcher to join ResearchGate. Rachel Mason. SESYNC is supported by an award from the US National Science Foundation (Grant #s DBI-1052875 and DBI-1639145) to the University of Maryland, with additional support from University of Maryland, University of Maryland Center for Environmental Science, and Resources for the Future. H-band (1.6 microns) of the Luminous Blue Variable star P Cygni. System HD 193322, ASAS Light Curves of Intermediate Mass Eclipsing Binaries and the I spent a lot of Free Solo peeking through my fingers, waiting for disaster to strike. Proposal Information for 2012A-0489. Her most recent work has involved simulating crop yields and environmental outcomes (runoff, erosion, etc.) Her … This binary has a circular orbit, an orbital period of 1.2 days, and contains two stars of almost identical masses ($M_1=1.72M_{\odot}, M_2=1.71M_{\odot}$). Rachel’s research focuses on connections between agriculture and climate change, in both directions. Students must fulfill all Requirements for Bachelor's Degrees including the Mason Core. Space sciences include other areas of investigation such as space travel and space exploration, in addition to astronomy. Rachel has lectured on collections law with a focus on the Fair Debt Collection Practices Act. Evidence, Causes, and Consequences of a Global Decline in Available Nitrogen. “I was suspended in the void, not yet safely on the other side of my career transition.” I spent a lot of Free Solo peeking through my fingers, waiting for disaster to strike. We have obtained moderate resolution blue spectra of 41 systems to produce double-lined radial velocity curve... We present the first high angular resolution observations in the nearinfrared View Rachel Mason’s profile on LinkedIn, the world's largest professional community. close binary system, with an orbital period of 60.753$\pm$0.003 d. We observed six-telescope interferometric observations with the CHARA Array and the MIRC low mass companions to the central binary. Once I was exposed to the curriculum, I realized the power that comes from understanding the fundamental forces of nature, so I made sure to focus on … Here we report on new spectroscopic observations and radial velocities of the narrow-lined component Ab1 which we use to determine its orbital motion around a close companion Ab2 (P = 312 days) and around a distant third star Aa... We present a catalog of 56 candidate intermediate mass eclipsing binary Mason has recorded 13 albums, has toured, exhibited sculpture, video and performance at the Whitney Museum, Queens Museum, LACMA, Detroit Museum of Contemporary Art, School of the Art Institute in Chicago, Henry Gallery in Seattle, James Gallery at CUNY, University Art Museum in Buffalo, Sculpture Center, Hessel … National Scientific and Technical Research Council, Theoretical and Cosmologycal Physics Deparment, Center for High Angular Resolution Astronomy, Stellar Companions of Exoplanet Host Stars in K2, Erratum: “Radial Velocities of 41 Kepler Eclipsing Binaries” (2017, AJ, 154, 216), Radial Velocities of 41 Kepler Eclipsing Binaries, Gravity Modes Reveal the Internal Rotation of a Post-mass Transfer Gamma Doradus/Delta Scuti Hybrid Pulsator in Kepler Eclipsing Binary KIC 9592855, KIC 8262223: A Post-Mass Transfer Eclipsing Binary Consisting of a Delta Scuti Pulsator and a Helium White Dwarf Precursor, Kepler Eclipsing Binaries with $\delta$ Scuti/$\gamma$ Doradus Pulsating Components 1: KIC 9851944, Fundamental Parameters of Kepler Eclipsing Binaries. A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Such periodic variations will reveal the reflex motion caused by any distant, low mass object that orbits the close binary. We argue that the visible ON star is undergoing a rapid mass transfer episode that results in a thick and opaque disk that surrounds and renders invisible its massive companion. ... Environmental science is a distinct change of field for Rachel. Rachel Mason, an astronomer with Gemini Observatory, obtained useful guidance in the types of questions you might find useful in a mentoring session such as, 'What approaches have you tried with this problem so far?' We gather pertinent observational data and derive orbital properties, including ephemerides, for these systems as a prelude to anticipated spectroscopic observations. The two components have very different radii... Eclipsing binaries serve as a valuable source of stellar masses and radii that inform stellar evolutionary models and provide insight into additional astrophysical processes. Search the leading research in optics and photonics applied research from SPIE journals, conference proceedings and presentations, and eBooks consists of a rapidly rotating B-type star and a small, hot companion. With an estimated 24 million head of cattle nationwide, each dropping 12 pats of dung per day, Australian livestock farmers have an immense poop problem.To make matters worse, poo makes for … Later on, Stencel (1977 ApJ 215) extended this luminosity calibrator by using so-called wing emission lines found in the wings of the H... We present UBV photometry of the canonical metal-poor cluster NGC 2506, imaged at the WIYN 0.9m telescope in November of 2004. Some researchers have reported that N in plants is declining, and as N is an essential component of protein, this could have far-reaching effects on things that eat plants—from insects, to grazing animals, to humans. Spectroscopically derived parameters of detached and semi-detached binaries allow us to determine component masses that can inform theories of stellar and binary evolution. effects. Join Facebook to connect with Rachel Mason and others you may know. Observations were made using the S2KB CCD during November 2004 at the WIYN 0.9m telescope. See what Rachel Mason (racheljmason) has discovered on Pinterest, the world's biggest collection of ideas. An important and as-yet-unanswered question is how this circumstellar material actually leaves the surface of the star. the radius of a sphere such that, if all the mass of an object is compressed within that sphere, the escape speed from the surface of the sphere would equal the speed of light. The club in a normal year would have held two to three dozen public observing sessions. Rachel Mason is a composer and director, known for The Lives of Hamilton Fish (2013), Circus of Books (2019) and Singularity Song. Here we present moderate resolution ground-based spectr... We report the discovery of a post-mass transfer Gamma Doradus/Delta Scuti hybrid pulsator in the eclipsing binary KIC~9592855. At least 18 credits used to fulfill an Astronomy, BS cannot be used to fulfill another major or minor. observations. 24 northern sky Be stars. Massive stars are rare objects in the Galaxy and there are only a small number of O-stars known in those favored eclipsing binaries, the gold standard for mass and radius determinations. binaries and how these phenomena influence the e... We are currently involved in a program to obtain precise photometry of We Only verified researchers can join ResearchGate and send messages to other members. My midcareer change was scary, but I took a leap of faith. Our results place strong constraints on the spect... As part of a Kepler Guest Observer program to search for tertiary companions to close eclipsing binaries via eclipse timing, we are determining fundamental properties of the central binaries through radial velocity and light curve analysis. I was on a flight A leap of faith Postdoctoral Fellow. Be stars are rapidly rotating B-type stars that lose mass in an equatorial, circumstellar disk (Porter & Rivinius 2003) and cause Balmer and other line emission. PI: Junfeng Wang, Smithsonian Astrophysical Observatory, High Energy Astrophysics Division, juwang@cfa.harvard.edu Address: 60 Garden St MS 60, Cambridge, MA 02138, USA CoI: Rachel Mason, Gemini Observatory - North CoI: Guiseppe Fabbiano, Harvard-Smithsonian Center for Astrophysics CoI: Martin Elvis, Harvard-Smithsonian Center for Astrophysics Our results for the reddening, metallicity, distance, and age of the cluster, which were derived from PSF photometry and aperture corrections, are given. Virtual seminar presented by Dr. Rachel Mason. Here we report on a new spectroscopic orbit for the central binary (P = 312 d) based on spectra collected over the last decade. beam combiner. Kepler eclipsing binaries with δ Scuti components and tidally induced heartbeat stars, HST/COS Detection of the Spectrum of the Subdwarf Companion of KOI-81, MWC 314: Binary results from optical interferometry compared with spectroscopy and photometry, Fundamental Properties of Eclipsing Binaries in the Kepler Field of View, The H-band Emitting Region of the Luminous Blue Variable P Cygni: Spectrophotometry and Interferometry of the Wind, A CHARA Array Survey of Circumstellar Disks around Nearby Be-type Stars, A Search for Hierarchical Triples using Kepler Eclipse Timing, Spectroscopic Orbits for Kepler Field of View Binaries, ASAS Light Curves of Intermediate-mass Eclipsing Binary Stars and the Parameters of HI Mon, An Interferometric and Spectroscopic Analysis of the Multiple Star The star HD 193322 is a remarkable multiple system that lies at the heart of the cluster Collinder 419. Currently, we are unsure as to why these stars rotate so quickly... We present a spectroscopic and photometric analysis of the remarkable massive binary system, BD +36 4063. expected for the stellar photosphere. ephemerides, for these systems as a prelude to anticipated spectroscopic

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