Brad Wargelin publications

Bradford J. Wargelin - Publications

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Any other use requires permission of the author and the publisher (listed with abstract under DOI link).

Refereed Journals

  1. "Optical, UV, and X-Ray Evidence for a 7-Year Stellar Cycle in Proxima Centauri,"
    B.J. Wargelin, S.H. Saar, G. Pojmański, J.J. Drake, and V.L. Kashyap,
    MNRAS 464, 3281 (2017)  [DOI]  [ADS]  [pdf]  [press release]

  2. "Observation and Modeling of Geocoronal Charge Exchange X-Ray Emission During Solar Wind Gusts,"
    B.J. Wargelin, M. Kornbleuth, P.L. Martin, and M. Juda,
    Astrophys. J. 796, 28 (2014)  [DOI]  [ADS]  [pdf]

  3. "A 33 Year Constancy of the X-Ray Coronae of AR Lac and Eclipse Diagnosis of Scale Height,"
    J.J. Drake, P. Ratzlaff, V. Kashyap, D.P. Huenemoerder, B.J. Wargelin, and D.O. Pease,
    Astrophys. J. 783, 2 (2014)  [DOI]  [ADS]  [pdf]

  4. "Solar Wind Charge Exchange Emission in the Chandra Deep Field North,"
    J.D. Slavin, B.J. Wargelin, and D. Koutroumpa,
    Astrophys. J. 779, 13 (2013)  [DOI]  [ADS]  [pdf]

  5. "X-Ray Flaring on the dMe Star, Ross 154,"
    B.J. Wargelin, V.L. Kashyap, J.J. Drake, D. García-Alvarez, and P.W. Ratzlaff,
    Astrophys. J. 676, 610 (2008)  [DOI]  [ADS]  [ps/gzip]  [pdf]

  6. "EBIT Charge-Exchange Measurements and Astrophysical Applications,"
    B.J. Wargelin, P. Beiersdorfer, and G.V. Brown,
    Can. J. Phys. 86, 151 (2008)  [DOI]  [ADS]  [pdf]

  7. "X-Rays from Solar System Bodies,"
    A. Bhardwaj, et al.,
    Planetary and Space Science 55, 1135 (2007)  [DOI]  [ADS]  [7.9 MB pdf]

  8. "Bayesian Estimation of Hardness Ratios: Modeling and Computations,"
    T. Park, V.L. Kashyap, A. Siemiginowska, D.A. van Dyk, A. Zezas, C. Heinke, and B.J. Wargelin,
    Astrophys. J. 652, 610 (2006)  [DOI]  [ADS]  [ps/gzip]  [pdf]

  9. "Fully Relativistic R-matrix Calculation of Electron Impact Excitation of NeIX,"
    G.X. Chen, R.K. Smith, K. Kirby, N.S. Brickhouse, and B.J. Wargelin,
    Phys. Rev. A 75, 042709 (2006)  [DOI]  [ADS]  [ps/gzip]  [pdf]

  10. "Charge Exchange Spectra of Hydrogenic and He-like Iron,"
    B.J. Wargelin, P. Beiersdorfer, P.A. Neill, R.E. Olson, and J.H. Scofield,
    Astrophys. J. 634, 687 (2005)  [DOI]  [ADS]  [ps/gzip]  [pdf]

  11. "An Assessment of the FeXVIII and FeXIX Line Ratios from the Chandra Grating Observations of Capella,"
    P. Desai, et al.,
    Astrophys. J. Lett. 625, 59 (2005)  [DOI]  [ADS]  [ps/gzip]  [pdf]

  12. "Chandra Observations of MBM12 and Models of the Local Bubble,"
    R.K. Smith, R.J. Edgar, P.P. Plucinsky, B.J. Wargelin, P.E. Freeman, and B.A. Biller,
    Astrophys. J. 623, 225 (2005)  [DOI]  [ADS]  [ps/gzip]  [pdf]

  13. "High-Resolution Crystal Spectrometer for the 10-60 Å Extreme Ultraviolet Region,"
    P. Beiersdorfer, G.V. Brown, R. Goddard, and B.J. Wargelin,
    Rev. Sci. Instrum. 75, 3720 (2004)  [DOI]  [ADS]  [ps/gzip]  [kB pdf]

  14. "Chandra Observations of the Dark Moon and Geocoronal Solar-Wind Charge Transfer,"
    B.J. Wargelin, M. Markevitch, M. Juda, V. Kharchenko, R. Edgar, and A. Dalgarno,
    Astrophys. J. 607, 596 (2004)  [DOI]  [ADS]  [ps/gzip]  [pdf]   [astro-ph (all figs in color)]   [press release]

  15. "Chandra Spectra of the Soft X-Ray Diffuse Background,"
    M. Markevitch, et al.,
    Astrophys. J. 583, 70 (2003)  [DOI]  [ADS]  [ps/gzip]  [pdf]

  16. "Stringent X-Ray Constraints on Mass Loss from Proxima Centauri,"
    B.J. Wargelin and J.J. Drake,
    Astrophys. J. 578, 503 (2002)  [DOI]  [ADS]  [ps/gzip]  [pdf]  [(color ps/gzip) Fig.7]  [Fig.8]

  17. "Is RX J1856.5-3754 a Quark Star?,"
    J.J. Drake, H.L. Marshall, S. Dreizler, P. Freeman, A. Fruscione, M. Juda, V. Kashyap, F. Nicastro, D.O. Pease, B.J. Wargelin, and K. Werner,
    Astrophys. J. 572, 996 (2002)  [DOI]  [ADS]  [ps/gzip]  [pdf]  [press release]

  18. "Structure of the X-Ray Emission from the Jet of 3C 273,"
    H.L. Marshall, J.J. Drake, A. Fruscione, J. Grimes, D. Harris, M. Juda, R. Kraft, S. Mathur, P.M. Ogle, D.A. Schwartz, A. Siemiginowska, S. Vrtilek, and B.J. Wargelin,
    Astrophys. J. Lett. 549, 167 (2001)  [DOI]  [ADS]  [2.5 MB ps/gzip (b/w)]  [6.1 MB pdf (color)]  [press release]

  19. "Enhanced Noble Gases in Coronae of Active Stars,"
    J.J. Drake, N.S. Brickhouse, V. Kashyap, J.M. Laming, D.P. Huenemoerder, R. Smith, and B.J. Wargelin,
    Astrophys. J. Lett. 548, 81 (2001)  [DOI]  [ADS]  [ps]  [pdf]

  20. "Dielectronic Satellite Contributions to Ne VIII and Ne IX K-Shell Spectra,"
    B.J. Wargelin, S.M. Kahn, and P. Beiersdorfer,
    Phys. Rev. A 63, 022710 (2001)  [DOI]  [ADS]  [ps/gzip]  [pdf]

  21. "Observability of Stellar Winds from Late-Type Dwarfs via Charge Exchange X-Ray Emission,"
    B.J. Wargelin and J.J. Drake,
    Astrophys. J. Lett. 546, 57 (2001)  [DOI]  [ADS]  [ps]  [pdf]

  22. "First Light Measurements of Capella with the Low-Energy Transmission Grating Spectrometer aboard the Chandra X-Ray Observatory,"
    A.C. Brinkman, et al.,
    Astrophys. J. Lett. 530, 111 (2000)  [DOI]  [ADS]  [ps]  [pdf]

  23. "Observation and Modeling of High-n Iron L-Shell Lines from Intermediate Ion Stages,"
    B.J. Wargelin, P. Beiersdorfer, D.A. Liedahl, S.M. Kahn, and S. von Goeler,
    Astrophys. J. 496, 1031 (1998)  [DOI]  [ADS]  [ps/gzip]  [pdf]

  24. "Low Energy X-Ray Spectrometer for an Electron Beam Ion Trap,"
    P. Beiersdorfer and B.J. Wargelin,
    Rev. Sci. Instrum. 65, 13 (1994)  [DOI]  [ADS]  [pdf]

  25. "Radiative Lifetime of the Long-Lived 1s2s 3S1 State in Heliumlike Neon by Electron Beam Excitation of Trapped Ions,"
    B.J. Wargelin, P. Beiersdorfer, and S.M. Kahn,
    Phys. Rev. Lett. 71, 2196 (1993)  [DOI]  [ADS]  [pdf]

  26. "Observation of Magnetic Octupole Decay in Atomic Spectra,"
    P. Beiersdorfer, A.L. Osterheld, J. Scofield, B. Wargelin, and R.E. Marrs,
    Phys. Rev. Lett. 67, 2272 (1991)  [DOI]  [ADS]  [pdf]

  27. "The Einstein Objective Grating Spectrometer Survey of Galactic Binary X-Ray Sources,"
    S.D. Vrtilek, J.E. McClintock, F.D. Seward, S.M. Kahn, and B.J. Wargelin,
    Astrophys. J. Suppl. 76, 1127 (1991)  [DOI]  [ADS]  [pdf]

  28. "Background Events in Microchannel Plates,"
    O.H.W. Siegmund, J. Vallerga, and B. Wargelin,
    in IEEE Trans. Nucl. Sci. NS-35, 524 (1988)  [DOI]  [ADS]  [pdf]

Selected Conference Proceedings, Non-Refereed Journals, and White Papers

  1. "Separating Local and Cosmic Soft X-Ray Emission in the Chandra Deep Field-South,"
    B.J. Wargelin, M. Juda, and J.D. Slavin,
    in The Local Bubble and Beyond II, ed. R.K. Smith, S.L. Snowden, and K.D. Kuntz, AIP Conf Proc. 1156, 85 (2009)  [DOI]  [ADS]  Preprint: [ps/gzip]  [pdf]

  2. "X-Ray Studies of Stars and Planets with Ultrahigh Sensitivity and Resolution,"
    S. Wolk, et al.,
    Astro2010 Decadal Survey White Paper for the Generation-X mission (Feb. 2009)  [Astro2010]  [pdf]

  3. "X-Ray Studies of Planetary Systems,"
    E. Feigelson, J. Drake, R. Elsner, A. Glassgold, M. Gudel, T. Montmerle, T. Ohashi, R. Smith, B. Wargelin, and S. Wolk,
    Astro2010 Decadal Survey White Paper for the International X-Ray Observatory (Feb. 2009)  [Astro2010]  [pdf]

  4. "Chandra LETG Higher Order Diffraction Efficiencies,"
    B.J. Wargelin, P.W. Ratzlaff, D.O. Pease, V.L. Kashyap, and J.J. Drake,
    in X-Ray and Gamma-Ray Instrumentation for Astronomy XIII, ed. K.A. Flanagan and O.H. Siegmund, Proc. SPIE 5165, 509 (2004)  [DOI]  [ADS]  [ps/gzip]  [pdf]

  5. "Characterizing Nonlinearities in the Chandra LETG+HRC-S Dispersion Relation,"
    S.M. Chung, J.J. Drake, V.L. Kashyap, P.W. Ratzlaff, and B.J. Wargelin,
    in UV and Gamma-Ray Space Telescope Systems, ed. G. Hasinger and M.J.L. Turner, Proc. SPIE 5488, 51 (2004)  [ADS]  [pdf]

  6. "Emission Line Spectra from Low-Density Laboratory Plasmas,"
    P. Beiersdorfer, G.V. Brown, J.J. Drake, M.-F. Gu, S.M. Kahn, J.K. Lepson, D.A. Liedahl, C.W. Mauche, D.W. Savin, S.B. Utter, and B.J. Wargelin,
    Rev. Mex. Astron. Astrofisica Conf. Ser. 9, 123 (2000)  [ADS]  [ps/gzip]  [pdf]

  7. "Low-Energy Effective Area of the Chandra Low Energy Transmission Grating Spectrometer,"
    D. Pease, J.J. Drake, C.O. Johnson, V. Kashyap, R.P. Kraft, P.W. Ratzlaff, B.J. Wargelin, et al.,
    in X-Ray Optics, Instruments, and Missions, ed. J. Trümper and B. Aschenbach, Proc. SPIE 4012, 700 (2000)  [ADS]

  8. "In-Flight Performance and Calibration of the Chandra High-Resolution Camera Spectroscopic Readout,"
    R.P. Kraft, et al.,
    in X-Ray Optics, Instruments, and Missions, ed. J. Trümper and B. Aschenbach, Proc. SPIE 4012, 493 (2000) [ADS]

  9. "Absolute Effective Area of the Chandra High Resolution Mirror Assembly (HRMA),"
    D.A. Schwartz, et al.,
    in X-Ray Optics, Instruments, and Missions, ed. J. Trümper and B. Aschenbach, Proc. SPIE 4012, 28 (2000) [ADS]

  10. "High-Accuracy Calibration of the HXDS Flow Proportional Counter for AXAF at the PTB Laboratory at BESSY,"
    J.M. Auerhammer, G. Brandt, F. Scholze, R. Thornagel, G. Ulm, B.J. Wargelin, W.C. McDermott, T.J. Norton, I.N. Evans, and E.M. Kellogg,
    in X-Ray Optics, Instruments, and Missions, ed. R.B. Hoover and A.B.C. Walker, Jr., Proc. SPIE 3444, 19 (1998) [ADS]  [pdf]

  11. "High Speed Imager AXAF Calibration Microchannel Plate Detector,"
    I.N. Evans, E.M. Kellogg, W.C. McDermott, M.P. Ordway, J.M Rosenberg, and B.J. Wargelin,
    in Grazing Incidence and Multilayer X-Ray Optical Systems, ed. R. Hoover and P. Klocek, Proc. SPIE 3113, 18 (1997) [ADS]  [pdf]

  12. "AXAF HXDS Germanium Solid State Detectors,"
    W.C. McDermott, E.M. Kellogg, B.J. Wargelin, et al.,
    in Grazing Incidence and Multilayer X-Ray Optical Systems, ed. R. Hoover and P. Klocek, Proc. SPIE 3113, 535 (1997) [ADS]  [pdf]

  13. "AXAF Calibration: The HXDS Flow Proportional Counters,"
    B.J. Wargelin, E.M. Kellogg, W.C. McDermott, I.N. Evans, and S.A. Vitek,
    in Grazing Incidence and Multilayer X-Ray Optical Systems, ed. R. Hoover and P. Klocek, Proc. SPIE 3113, 526 (1997) [ADS] [ps] [pdf]

  14. "X-Ray Source System at the MSFC X-Ray Calibration Facility,"
    J.J. Kolodziejczak, R.A. Austin, R.F. Elsner, M.K. Joy, M. Sulkanen, E.M. Kellogg, and B.J. Wargelin,
    in X-Ray and Extreme Ultraviolet Optics, ed. R.B. Hoover and A.B.C. Walker, Jr., Proc. SPIE 2515, 420 (1995) [ADS] [pdf]

  15. "Penning Source for Calibration of X-Ray and EUV Optics and Spectrometers at Wavelengths as Short as 56 Å,"
    E.M. Kellogg, B. Wargelin, T. Norton, R. Eng, and J.J. Kolodziejczak,
    in X-Ray and Extreme Ultraviolet Optics, ed. R.B. Hoover and A.B.C. Walker, Jr., Proc. SPIE 2515, 418 (1995) [ADS] [ps] [pdf]

  16. "Study of Heliumlike Neon Using an Electron Beam Ion Trap,"
    B.J. Wargelin, P. Beiersdorfer, and S.M. Kahn,
    in Proceedings of the Tenth International Colloquium on UV and X-Ray Spectroscopy of Astrophysical and Laboratory Plasmas, ed. E.H. Silver and S.M. Kahn, (Cambridge: Cambridge University Press), p. 178 (1993) [ADS]

  17. "Measurement of Photoabsorption Cross Sections for Intermediate Carbon Ions,"
    B.J. Wargelin, S.M. Kahn, W.W. Craig, and R. London,
    in IAU Colloquium No. 115, High Resolution X-Ray Spectroscopy of Cosmic Plasmas, ed. P. Gorenstein and M. Zombeck, (Cambridge: Cambridge University Press), p. 197 (1990) [ADS]

  18. "General Purpose Calibration Facility for Use in X-Ray Astronomy,"
    W.W. Craig, C.J. Hailey, R.M. Morales, M.C. Hettrick, S.M. Kahn, and B.J. Wargelin,
    in X-Ray Instrumentation in Astronomy II, ed. L. Golub, Proc. SPIE 982, 362 (1988) [ADS]