The following citations represent the scholarly and/or creative works attributed to East Tennessee State University faculty in the Department of Physics and Astronomy.
Articles
Asymmetric Shapes of Radio Recombination Lines from Ionized Stellar Winds, Richard Ignace (2019)
Variability in X-ray Line Ratios in Helium-Like Ions of Massive Stars: The Wind-Driven Case, Richard Ignace, Z. Damrau, and K. T. Hole (2019)
The Polarization Mode of the Auroral Radio Emission from the Early-Type Star HD 142301, P. Leto, C. Trigilio, Lidi M. Oskinova, Richard Ignace, C. S. Buemi, G. Umana, F. Cavallaro, A. Ingallinera, F. Bufano, N. M. Phillips, C. Agliozzo, L. Cerrigone, H. Todt, S. Riggi, and F. Leone (2019)
Coordinated UV and X-Ray Spectroscopic Observations of the O-type Giant ξ Per: The Connection between X-Rays and Large-scale Wind Structure, Derek Massa, Lidi Oskinova, Raman Prinja, and Richard Ignace (2019)
Monte Carlo of Trapped Ultracold Neutrons in the UCNτ Trap, Nathan Callahan, Chen-Yu Liu, Fransisco Gonzalez, Evan Adamek, James D. Bowman, Leah J. Broussard, S. M. Clayton, S. Currie, C. Cude-Woods, E. B. Dees, X. Ding, E. M. Egnel, D. Fellers, W. Fox, Peter Geltenbort, Kevin P. Hickerson, M. A. Hoffbauer, A. T. Holley, A. Komives, S. W.T. MacDonald, Marc Makela, C. L. Morris, J. D. Ortiz, Robert W. Pattie Jr., J. Ramsey, D. J. Salvat, A. Saunders, Susan J. Seestrom, E. I. Sharapov, Sky L. Sjue, Z. Tang, J. Vanderwerp, B. Vogelaar, P. L. Walstrom, Z. Wang, H. Weaver, W. Wei, J. Wexler, A. R. Young, and B. A. Zeck (2018)
Highly Stable [C60AuC60]+/- Dumbbells, Marcelo Goulart, Martin Kuhn, Paul Martini, Lei Chen, Frank Hagelberg, Alexander Kaiser, Paul Scheier, and Andrew M. Ellis (2018)
A Study of Hα Line Profile Variations in β Lyr, Richard Ignace, Sharon K. Gray, Macno A. Magno, Gary D. Henson, and Derek Massa (2018)
Probing the Rotational Velocity of Galactic WO Stars with Spectropolarimetry, H. F. Stevance, Richard Igance, P. A. Crowther, J. R. Maund, B. Davies, and G. Rate (2018)
On the Apparent Absence of Wolf–Rayet+Neutron Star Systems: The Curious Case of WR124, Jesus A. Toala, Lidi Oskinova, W.R. Hamann, Richard Ignace, A.A. C. Sander, H. Todt, Y.H. Chu, M. A. Guerrero, R. Hainich, R. Hainich, and J. M. Terrejon (2018)
An X-Ray Study of Two B+B Binaries: AH Cep and CW Cep, Richard Ignace, K. T. Hole, Lidia M. Oskinova, and J. P. Rotter (2017)
The Remote Observatories of the Southeastern Association for Research in Astronomy (SARA), William C. Keel, Terry Oswalt, Peter Mack, Gary Henson, Todd Hillwig, Daniel Batcheldor, Robert Berrington, Chris De Pree, Dieter Hartmann, Martha Leake, Javier Licandro, Brian Murphy, James Webb, and Matt A. Wood (2017)
Revealing the Structure of the Outer Disks of Be Stars, Robert Klement, Anthony C. Carciofi, Thomas Rivinius, Lynn D. Matthews, Rodrigo G. Vieira, Richard Ignace, Jon E. Bjorkman, B. C. Mota, Daniel M. Faes, A. D. Bratcher, M. Cure, and Stanislav Stefl (2017)
Limb Darkening and Planetary Transits: Testing Center-to-limb Intensity Variations and Limb-darkening Directly from Model Stellar Atmospheres, Hilding R. Neilson, Joseph T. McNeil, Richard Ignace, and John B. Lester (2017)
On the Binary Nature of Massive Blue Hypergiants: High-resolution X-Ray Spectroscopy Suggests That Cyg OB2 12 is a Colliding Wind Binary - IOPscience, Lidia M. Oskinova, David P. Huenemoerder, Wolf-Rainer Hamann, Tomer Shenar, A. A.C. Sander, Richard Ignace, H. Todt, and R. Hainich (2017)
On the Absence of Non-thermal X-Ray Emission around Runaway O Stars, Jesus A. Toalá, Lidia M. Oskinova, and Richard Ignace (2017)
Modeling X-ray Emission Line Profiles from Massive Star Winds - A Review, Richard Igance (2016)
X-ray Observations of Bow Shocks around Runaway O Stars. The Case of ζ Oph and BD+43°3654, Jesus Toala, Lidia M. Oskinova, A. González-Galán, M. A. Guerrero, Richard Ignace, and M. Pohl (2016)
A Coordinated X-ray and Optical Campaign of the Nearest Massive Eclipsing Binary, δ Ori Aa: I. Overview of the X-ray Spectrum., Michael Corcoran, Joy Nichols, H. Pablo, Tomer Shenar, Andy Pollock, W. Waldron, A. Moffat, N. Richardson, C. Russell, K. Hamaguchi, D. Huenemoerder, L. Oskinova, W.-R. Hamann, Y. Nazé, Richard Ignace, Nancy Evans, Jamie Lomax, J. Hoffman, K. Gayley, S. Owocki, M. Leutenegger, T. Gull, K. Hole, J. Lauer, and R. Iping (2015)
New Multiwavelength Observations of the Of?p Star CPD -28◦ 2561., S. Hubrig, M. Schöller, A. Kholtygin, H. Tsumura, A. Hoshino, S. Kitamoto, L. Oskinova, Richard Ignace, H. Todt, and I. Ilyin (2015)
Probing Wolf–Rayet Winds: Chandra/HETG X-Ray Spectra of WR 6, David P. Huenemoerder, K. G. Gayley, Wolf-Rainer Hamann, Richard Ignace, J. S. Nichols, Lidia M. Oskinova, A. M.T. Pollock, Nobert S. Schulz, and Tomer Shenar (2015)
Polarimetric modeling of corotating interaction regions (CIRs) threading massive-star winds., Richard Ignace, Nicole St-Louis, and Felix Proulx-Giraldeau (2015)
Period Change and Stellar Evolution of β Cephei Stars, Hilding R. Neilson and Richard Ignace (2015)
The Strange Evolution of the Large Magellanic Cloud Cepheid OGLE-LMC-CEP1812, Hilding R. Neilson, Robert G. Izzard, Nobert Langer, and Richard Ignace (2015)
A Coordinated X-Ray and Optical Campaign of the Nearest Massive Eclipsing Binary, δ Orionis Aa: II. X-Ray Variability., Joy Nichols, D. Huenemoerder, Michael Corcoran, W. Waldron, Y. Nazé, Andy Pollock, A. Moffat, J. Lauer, Tomer Shenar, C. Russell, N. Richardson, H. Pablo, N. Evans, K. Hamaguchi, T. Gull, W.-R. Hamann, L. Oskinova, Richard Ignace, Jennifer Hoffman, K. Hole, and Jamie Lomax (2015)
On X-ray pulsations in beta Cephei-type variables, L. Oskinova, H. Todt, D. Huenemoerder, S. Hubrig, Richard Ignace, W.-R. Hamann, and L. Balona (2015)
A Coordinated X-ray and Optical Campaign of the Nearest Massive Eclipsing Binary, δ Orionis Aa. III. Analysis of Optical Photometric (MOST) and Spectroscopic (Ground Based) Variations., Herbert Pablo, Noel Richardson, Anthony Moffat, Michael Corcoran, Tomer Shenar, Omar Benvenuto, Jim Fuller, Yaël Nazé, Jennifer Hoffman, Anatoly Miroshnichenko, Jesús Apellániz, Nancy Evans, Thomas Eversberg, Ken Gayley, Ted Gull, Kenji Hamaguchi, Wolf-Rainer Hamann, Huib Henrichs, Tabetha Hole, Richard Ignace, Rosina Iping, Jennifer Lauer, Maurice Leutenegger, Jamie Lomax, Joy Nichols, Lida Oskinova, Stan Owocki, Andy Pollock, Christopher Russell, Wayne Waldron, Christian Buil, Thierry Garrel, Keith Graham, Bernard Heathcote, Thierry Lemoult, Dong Li, Benjamin Mauclaire, Mike Potter, Jose Ribeiro, Jaymie Matthews, Chris Cameron, David Guenther, Rainer Kuschnig, Jason Rowe, Slavek Rucinski, Dimitar Sasselov, and Werner Weiss (2015)
The MiMeS Survey of Magnetism in Massive Stars: Introduction and Overview, G. A. Wade, C. Neiner, E. Alecian, H. H. Grunhunt, V. Petit, B. Batz, D. A. Bohlender, D. H. Cohen, H. F. Henrichs, O. Kochukhov, J. D. Landstreet, N. Manset, F. Martins, S. Mathis, M. E. Oksala, S. P. Owocki, Th. Rivinius, M. E. Schultz, J. O. Sundqvist, R. H.D. Townsend, A. Doula, J. C. Bouret, J. Braithwaite, M. Briquet, A. C. Carciofi, A. David-Uraz, C. P. Folsom, A. W. Fullerton, B. Leroy, W. L.F. Marcolino, A. F.J. Moffat, Y. Naze, N. St Louis, M. Auriere, S. Bagnulo, J. D. Bailey, R. H. Barba, A. Blazere, T. Bohm, C. Catala, J-F Donati, L. Ferrario, D. Harrington, I. D. Howarth, Richard Ignace, L. Kaper, T. Luftinger, R. Prinja, J. S. Vink, W. W. Weiss, and I. Yakunin (2015)
Faraday Rotation Effects for Diagnosing Magnetism in Bubble Environments., Richard Ignace (2014)
Convection, Granulation, and Period Jitter in Classical Cepheids., Hilding Neilson and Richard Ignace (2014)
Evidence of a Mira-like tail and bow shock about the semi-regular variable V CVn from four decades of polarization measurements., Hilding Neilson, Richard Ignace, Beverly Smith, Gary Henson, and Alyssa Adams (2014)
Discovery of X-ray Pulsations from a Massive Star., Lidia Oskinova, Yael Nazé, Helge Todt, David Huenemoerder, Richard Ignace, Swetlana Hubrig, and Wolf-Rainer Hamann (2014)
Discovery of a Magnetic Field in the Rapidly-Rotating O-Type Secondary of the Colliding-Wind Binary HD 47129 (Plaskett’s Star)., J. Grunhut, G. Wade, M. Leutenegger, V. Petit, G. Rauw, C. Neiner, F. Martins, D. Cohen, M. Gagné, Richard Ignace, S. Mathis, S. de Mink, A. Moffat, S. Owocki, M. Shultz, J. Sundqvist, and MiMeS Collaboration (2013)
Investigating the Spectroscopic, Magnetic and Circumstellar Variability of the O9 Subgiant Star HD 57682., J. Grunhut, G. Wade, J. Sundqvist, A. ud-Doula, C. Neiner, Richard Ignace, W. Marcolino, Th. Rivinius, A. Fullerton, L. Kaper, B. Mauclaire, C. Buil, T. Garrel, J. Ribeiro, and S. Ubaud (2013)
The XMM-Newton EPIC X-ray Light Curve Analysis of WR 6., Richard Ignace, K. Gayley, W.-R. Hamann, D. Huenemoerder, L. Oskinova, A. Pollock, and M. McFall (2013)
A Report on the X-ray Properties of the τ Sco Class of Stars., Richard Ignace, L. Oskinova, and D. Massa (2013)
Faraday Rotation Distributions from Stellar Magnetism in Wind-Blown Bubbles., Richard Ignace and N. Pingel (2013)
Variability in X-ray Line Ratios in Helium-like Ions of Massive Stars: the Radiation-driven Case., K. Hole and Richard Ignace (2012)
On the Weak-Wind Problem in Massive Stars: X-Ray Spectra Reveal a Massive Hot Wind in mu Columbae., David Huenemoerder, Lidia Oskinova, Richard Ignace, Wayne Waldron, Helge Todt, Kenji Hamaguchi, and Shunji Kitamoto (2012)
X-ray Emission Line Profiles from Wind Clump Bow Shocks in Massive Stars., R. Ignace, W. Waldron, J. Cassinelli, and A. Burke (2012)
High-Resolution X-ray Spectroscopy reveals the Special Nature of the Wolf-Rayet Star Winds., L. Oskinova, K. Gayley, W.-R. Hamann, D. Huenemoerder, Richard Ignace, and A. Pollock (2012)
Time-Dependent Behavior of Linear Polarization in Unresolved Photospheres, with Applications for the Hanle Effect., Richard Ignace, K. Hole, J. Cassinelli, and G. Henson (2011)
Early Magnetic B-type Stars: X-ray Emission and Wind Properties., L. Oskinova, H. Todt, Richard Ignace, J. Brown, J. Cassinelli, and W.-R. Hamann (2011)
Discovery of the first τ Sco Analogues: HD 66665 and HD 63425., V. Petit, D. Massa, W. Marcolinino, G. Wade, and Richard Ignace (2011)
The Zeeman Effect in the Sobolev Approximation II. Radial Split Monopole Fields and the ‘Heartbeat’ Stokes V Profile., K. Gayley and Richard Ignace (2010)
The Hanle Effect as a Diagnostic of Magnetic Fields in Stellar Envelopes. V. Thin Lines from Keplerian Disks., Richard Ignace (2010)
Radio Emission from Substellar Companions of Evolved Cool Stars., Richard Ignace, Mark Giroux, and Donald Luttermoser (2010)
A Multi-Phase Suzaku Study of τ Sco., Richard Ignace, L. Oskinova, M. Jardine, J. Cassinelli, D. Cohen, J.-F. Donati, R. Townsend, and A. ud-Doula (2010)
Hard X-ray Emission from the Massive Star-Forming Region ON 2: Discovery with XMM-Newton., L. Oskinova, R. Gruendl, Richard Ignace, Y.-H. Chu, W.-R. Hamann, and A. Feldmeier (2010)
Scattering Polarization due to Light Source Anisotropy II. Envelope of Arbitrary Shape., Richard Ignace, M. Al-Malki, J. Simmons, J. Brown, D. Clarke, and J. Carson (2009)
Modeling Forbidden Line Emission Profiles from Colliding Wind Binaries., Richard Ignace, R. Bessey, and C. Price (2009)
Spectropolarimetric Variability and Co-Rotating Structure in HD 92207., Richard Ignace, S. Hubrig, and M. Schöller (2009)
Polarization Variability Arising from Clumps in the Winds of Wolf-Rayet Stars., Qing-Kang Li, Joseph Cassinelli, John Brown, and Richard Ignace (2009)
Discovery of X-ray Emission from the Wolf-Rayet Star WR 142 of Oxygen Subtype., L. Oskinova, W.-R. Hamann, A. Feldmeier, Richard Ignace, and Y.-H. Chu (2009)
The Effects of Clumps in Explaining X-Ray Emission Lines from Hot Stars., J. Cassinelli, Richard Ignace, W. Waldron, J. Cho, N. Murphy, and A. Lazarian (2008)
Magnetic field measurements of O stars with FORS 1 at the VLT., S. Hubrig, M. Schöller, R. Schnerr, J. González, Richard Ignace, and H. Henrichs (2008)
Phase-Dependent X-ray Observations of the beta Lyrae System: No eclipse in the soft band., Richard Ignace, L. Oskinova, W. Waldron, J. Hoffman, and W.-R. Hamann (2008)
Neon Abundances from a Spitzer/IRS Survey of Wolf-Rayet Stars., Richard Ignace, J. Cassinelli, G. Tracy, E. Churchwell, and H. J. Lamers (2007)
Microlensing of Circumstellar Envelopes III. Line Profiles from Stellar Winds in Homologous Expansion., M. Hendry, Richard Ignace, and H. Bryce (2006)
The Polarization Signature from Microlensing of Circumstellar Envelopes in Caustic Cossing Events, Richard Ignace, J. Bjorkman, and H. Bryce (2006)
Models of Forbidden Line Emission Profiles from Axisymmetric Stellar Winds., Richard Ignace and A. Brimeyer (2006)
First GLIMPSE Results on the Stellar Structure of the Galaxy., R. Benjamin, E. Churchwell, B. Babler, R. Indebetouw, M. Meade, B. Whitney, C. Watson, M. Wolfire, M. Wolff, Richard Ignace, T. Bania, S. Bracker, D. Clemens, L. Chomiuk, M. Cohen, J. Dickey, J. Jackson, H. Kobulnicky, E. Mercer, J. Mathis, S. Stolovy, and B. Uzpen (2005)
Optically Thick Clumps – Not the Solution to the Wolf-Rayet Wind Momentum Problem?, J. Brown, J. Cassinelli, Q. Li, A. Kholtygin, and Richard Ignace (2004)
Conference Proceedings
"Blinded by the Lines: Mid-IR Spectra of Mira Variables Taken with Spitzer", Dana Baylis-Aguirre, Michelle J. Creech-Eakman, Donald G. Luttermoser, and Tina Gueth (2016)
Presentations
Status of the Los Alamos Room Temperature Neutorn Electric Dipole Moment Search, Robert W. Pattie Jr. (2019)
Continuum Polarization in Circumstellar Media, Richard Ignace (2014)
