39 citations · 220 across the 21 of their papers we have counts for
21 papers
Editorial: Mass and Angular Momentum Transport of Rapidly Rotating Hot Stars
P. A. Scowen, Carol E. Jones, René D. Oudmaijer +2
This dedicated journal collection will present and discuss a variety of science cases that can be used to extend our knowledge of massive stars and the influence of their rapid rot…
A Seven-Day Multi-Wavelength Flare Campaign on AU Mic I: High-Time Resolution Light Curves and the Thermal Empirical Neupert Effect
Isaiah I. Tristan, Yuta Notsu, Adam F. Kowalski +13
We present light curves and flares from a seven day, multi-wavelength observational campaign of AU Mic, a young and active dM1e star with exoplanets and a debris disk. We report on…
UV Spectropolarimetry with Polstar: Massive Star Binary Colliding Winds
Nicole St-Louis, Kenneth Gayley, D. John Hillier +13
The winds of massive stars are important for their direct impact on the interstellar medium, and for their influence on the final state of a star prior to it exploding as a superno…
Modeling the Optical to Ultraviolet Polarimetric Variability from Thomson Scattering in Colliding Wind Binaries
Richard Ignace, Andrew Fullard, Manisha Shrestha +5
Massive star binaries are critical laboratories for measuring masses and stellar wind mass-loss rates. A major challenge is inferring viewing inclination and extracting information…
Ultraviolet Spectropolarimetry with Polstar: Massive Star Binary Colliding Winds
Nicole St-Louis, Kenneth Gayley, Desmond John Hillier +13
As sources of chemical enrichment, ionizing radiation and energetic feedback, massive stars drive the ecology of their host galaxies despite their relative rarity, additionally to…
UV Spectropolarimetry with Polstar: Protoplanetary Disks
John P. Wisniewski, Andrei V. Berdyugin, Svetlana V. Berdyugina +13
Polstar is a proposed NASA MIDEX mission that would feature a high resolution UV spectropolarimeter capable of measure all four Stokes parameters onboard a 60cm telescope. The miss…
Ultraviolet Spectropolarimetry:Conservative and Nonconservative Mass Transfer in OB Interacting Binaries
Geraldine J. Peters, Ken Gayley, Richard Ignace +11
One objective of the Polstar spectropolarimetry mission is to characterize the degree of nonconservative mass transfer that occurs at various stages of binary evolution, from the i…
13 Years of P Cygni Spectropolarimetry: Investigating Mass-loss Through H, Periodicity, and Ellipticity
Keyan Gootkin, Trevor Dorn-Wallenstein, Jamie R. Lomax +7
We report on over 13 years of optical and near-ultraviolet spectropolarimetric observations of the famous Luminous Blue Variable (LBV), P Cygni. LBVs are a critical transitional ph…
The Hubble Space Telescope Advanced Camera for Surveys Emission Line Survey of Andromeda. I: Classical Be Stars
M. Peters, J. P. Wisniewski, B. F. Williams +9
We present results from a 2-epoch HST H emission line survey of the Andromeda Galaxy that overlaps the footprint of the Panchromatic Hubble Andromeda Treasury (PHAT) survey. We…
Astro2020 APC White Paper: The Early Career Perspective on the Coming Decade, Astrophysics Career Paths, and the Decadal Survey Process
Emily Moravec, Ian Czekala, Kate Follette +53
In response to the need for the Astro2020 Decadal Survey to explicitly engage early career astronomers, the National Academies of Sciences, Engineering, and Medicine hosted the Ear…
Optical Coronagraphic Spectroscopy of AU Mic: Evidence of Time Variable Colors?
Jamie R. Lomax, John P. Wisniewski, Aki Roberge +4
We present coronagraphic long slit spectra of AU Mic's debris disk taken with the STIS instrument aboard the Hubble Space Telescope (HST). Our spectra are the first spatially resol…
The Complex Circumstellar and Circumbinary Environment of V356 Sgr
Jamie R. Lomax, Andrew G. Fullard, Michael A. Malatesta +13
We analyze 45 spectropolarimetric observations of the eclipsing, interacting binary star V356 Sgr, obtained over a period of 21 years, to characterize the geometry of the system's…
Constraining the Movement of the Spiral Features and the Locations of Planetary Bodies within the AB Aur System
Jamie R. Lomax, John P. Wisniewski, Carol A. Grady +54
We present new analysis of multi-epoch, H-band, scattered light images of the AB Aur system. We used a Monte Carlo, radiative transfer code to simultaneously model the system's SED…
Structure and fate of binary WR stars: Clues from spectropolarimetry
Jennifer L. Hoffman, Jamie R. Lomax
Because most massive stars have been or will be affected by a companion during the course of their evolution, we cannot afford to neglect binaries when discussing the progenitors o…
Characterizing the Rigidly Rotating Magnetosphere Stars HD 345439 and HD 23478
J. P. Wisniewski, S. D. Chojnowski, J. R. A. Davenport +8
The SDSS III APOGEE survey recently identified two new Ori E type candidates, HD 345439 and HD 23478, which are a rare subset of rapidly rotating massive stars whose large (kGa…
A Coordinated X-ray and Optical Campaign on the Nearest Massive Eclipsing Binary, Delta Ori Aa: I. Overview of the X-ray Spectrum
M. F. Corcoran, J. S. Nichols, H. Pablo +22
We present an overview of four phase-constrained Chandra HETGS X-ray observations of Delta Ori A. Delta Ori A is actually a triple system which includes the nearest massive eclipsi…
A Coordinated X-ray and Optical Campaign of the Nearby Massive Binary Orionis Aa: II. X-ray Variability
J. S. Nichols, D. P. Huenemoerder, M. F. Corcoran +18
We present time-resolved and phase-resolved variability studies of an extensive X-ray high-resolution spectral dataset of the Orionis Aa binary system. The four observations, o…
A Coordinated X-ray and Optical Campaign of the Nearest Massive Eclipsing Binary, delta Orionis Aa: III. Analysis of Optical Photometric MOST and Spectroscopic (Ground Based) Variations
Herbert Pablo, Noel D. Richardson, Anthony F. J. Moffat +44
We report on both high-precision photometry from the MOST space telescope and ground-based spectroscopy of the triple system delta Ori A consisting of a binary O9.5II+early-B (Aa1…
V444 Cyg X-ray and polarimetric variability: Radiative and Coriolis forces shape the wind collision region
Jamie R. Lomax, Yael Naze, Jennifer L. Hoffman +8
We present results from a study of the eclipsing, colliding-wind binary V444 Cyg that uses a combination of X-ray and optical spectropolarimetric methods to describe the 3-D nature…
Geometrical Constraints on the Hot Spot in Beta Lyrae
Jamie R. Lomax, Jennifer L. Hoffman, Nicholas M. Elias +2
We present results from six years of recalibrated and new spectropolarimetric data taken with the University of Wisconsin's Half-Wave Spectropolarimeter (HPOL) and six years of new…
Spectropolarimetry of Beta Lyrae: Constraining the Location of the Hot Spot and Jets
J. R. Lomax, J. L. Hoffman
Beta Lyrae is an eclipsing, semi-detached binary system whose state of active mass transfer can reveal details of the nonconservative evolution of binary stars. Roche lobe overflow…