Pawan Kumar


 Updated July 2017                   PDF Version
  1. "Radiative interaction between the relativistic jet and optically thick envelope in tidal disruption events", Lu, W., Krolik, J., Crumley, P., Kumar, P., 2017, to appear in MNRAS

  2. "Fast radio burst source properties and curvature radiation model", Kumar, P., Lu, W., Bhattacharya, M., 2017, MNRAS 468, 2726

  3. "Stellar disruption events support the existence of the black hole event horizon", Lu, W., Kumar, P., Narayan, R., 2017, MNRAS 468, 910L

  4. "A universal EDF for repeating fast radio bursts?", Lu, W. & Kumar, P., 2016, MNRAS 461, L122

  5. "Swift J1644+57: an ideal test bed of radiation mechanisms in a relativistic super-Eddington jet", Crumley, P., Lu, W., Santana, R., Hernandez, R. A., Kumar, P., Markoff, S., 2016, MNRAS 460, 396

  6. "Probing Massive Stars Around Gamma-Ray Burst Progenitors", Lu, W., Kumar, P., Smoot, G.F., 2015, MNRAS 453, 1458

  7. "External Inverse-Compton Emission from Jetted Tidal Disruption Events", Lu, Wenbin, and Kumar, P., 2016, MNRAS 458, 1071

  8. "Monte Carlo Simulations of the Photospheric Process", Santana, R., Hernandez, R.A., Crumley, P. and Kumar, P., 2016, MNRAS 456, 1049

  9. "Radiation from a Relativistic Poynting Jet: some general considerations", Kumar, P. and Crumley, P., 2015, MNRAS 453, 1820

  10. "How Bad/Good Are the External Forward Shock Models of Gamma-Ray Bursts?", Wang, X-G, Zhang, B., Liang, E-W, Gao, H., Li, L., Deng, C-M, Qin, S-M, Tang, Q-W, Kann, D.A., Ryde, F., and Kumar, P., 2015, Ap. J. Sup 219, 9

  11. "A novel paradigm for short gamma-ray bursts with extended X-ray emission", Rezzolla, L., Kumar, P., 2015, ApJ 802, 95

  12. "Some Implications of inverse-Compton Scattering of Hot Cocoon Radiation by relativistic jets in Gamma-Ray Bursts", Kumar, P. and Smoot, G.F., 2014, MNRAS 445, 528

  13. "A Small, Rapid Optical-IR Response Gamma-Ray Burst Space Observatory (The NGRG)", Grossan, B., Kumar, P., Perley, D., and Smoot, G.F., 2014 PASP 126, 885

  14. "The Physics of Gamma-Ray Bursts & Relativistic Jets", Kumar, P. and Zhang, B., 2015, Physics Reports 561, 1-109

  15. "Magnetic Fields In Relativistic Collisionless Shocks", Santana, R., Barniol Duran, R. and Kumar, P., 2014, ApJ 785, 29

  16. "Radio Emission of the Forward Bow Shock in the Stellar Wind Model of G2", Crumley, P. & Kumar, P., 2013, MNRAS 436, 1955

  17. "A model for the multiwavelength radiation from tidal disruption event Swift J1644+57", Kumar, P., Barniol Duran, R., Bosnjak, Z. & Piran, T., 2013, MNRAS 434, 3078

  18. "Model-Dependent High-Energy Neutrino Flux from Gamma-Ray Bursts", Zhang, B. & Kumar, P., 2013, Physical Review Letters 110, 121101

  19. "Hadronic models for Large Area Telescope prompt emission observed in Fermi gamma-ray bursts", Crumley, P. & Kumar, P., 2013, MNRAS 429, 3238

  20. "Inverse Compton cooling in Klein-Nishina regime and GRB prompt spectrum", Barniol Duran, R., Bosnjak, Z. & Kumar, P., 2012, MNRAS 424, 3192

  21. "Maximum Synchrotron Frequency for Shock Accelerated Particles", Kumar, P., Hernández, R.A., Bosnjak, J. & Barniol Duran, R., 2012, MNRAS 427, L40

  22. "Magnetic jet model for GRBs and the delayed arrival of >100 MeV photons", Bosnjak, Z. and Kumar, P., 2012, MNRAS 421, L39

  23. "Simulations of Accretion Powered Supernovae in the Progenitors of Gamma Ray Bursts", Lindner, C.C., Milosavljevic, M., Shen, R. and Kumar, P., 2012, ApJ 750, 163

  24. "Supernovae Powered by Collapsar Accretion in Gamma-Ray Burst Sources", Milosavljevic, M., Lindner, C., Shen, R. & Kumar, P., 2012, ApJ 744, 103

  25. "Evidence for mild deviation from power-law distribution of electrons in relativistic shocks: GRB 090902", Barniol Duran, R. and Kumar, P., 2011, MNRAS 417, 1584

  26. "Constraints on Cold Magnetized Shocks in Gamma-Ray Bursts", Narayan, R., Kumar, P. and Tchekhovskoy, A., 2011, MNRAS 416, 2193

  27. "Implications of electron acceleration for high-energy radiation from gamma-ray bursts", Barniol Duran, R., & Kumar, P., 2011, MNRAS 412, 522

  28. "External forward shock origin of high energy emission for three GRBs detected by Fermi", Kumar, P. and Barniol Duran, R., 2010, MNRAS 409, 226

  29. "Supernovae-induced accretion and star formation in the inner kiloparsec of a gaseous disk", Kumar, P. & Johnson, J.L., 2010, MNRAS 404, 2170

  30. "Collapsar Accretion and the Gamma-Ray Burst X-Ray Light Curve", Lindner, C.C., Milosavljevic, M., Couch, S.M. and Kumar, P., 2010, ApJ 713, 800

  31. "The late jet in gamma-ray bursts and its interactions with a supernova ejecta and a cocoon", Shen, R., Kumar, P. and Piran, T., 2010, MNRAS 403, 229

  32. "On the generation of high-energy photons detected by the Fermi Satellite from gamma-ray bursts", Kumar, P. and Barniol Duran, R., 2009, MNRAS 400, L75

  33. "A turbulent model of gamma-ray burst variability", Narayan, R. & Kumar, P., 2009, MNRAS 394, L117

  34. "Gamma-ray Burst 080319B: Evidence for Relativistic Turbulence, Not Internal Shocks", Kumar P. & Narayan, R., 2009, MNRAS 395, 472

  35. "Adiabatic expansion, early x-ray data and the central engine in GRBs", Barniol Duran, R. & Kumar, P., 2009, MNRAS 395, 955

  36. "Properties of Gamma-ray Burst Progenitor Stars", Kumar, P., Narayan, R. and Johnson, J., Science, vol. 321, 376, July 2008

  37. "Mass Fall-back and Accretion in the Central Engine of Gamma-Ray Bursts", Kumar, P., Narayan, R. and Johnson, J., 2008, MNRAS 388, 1729

  38. "What did we learn from gamma-ray burst 080319B?", Kumar, P and Panaitescu, A., 2008, MNRAS 391, L19

  39. "A general scheme for modeling gamma-ray burst prompt emission", Kumar, P. and McMahon, E., 2008, MNRAS 384, 33

  40. "The Dust Scattering Model Can Not Explain The Shallow X-ray Decay in GRB Afterglows", Shen, R-F, Willingale, R., Kumar, P., O'Brien, P.T. and Evans, P.A., 2009, MNRAS 393, 598

  41. "Scattered emission from a relativistic outflow and its application to gamma-ray bursts", Shen, R.-F., Duran, R. Barniol, and Kumar, P., 2008, MNRAS 384, 1129

  42. "A unified picture for the gamma-ray and prompt optical emissions of GRB 990123", Panaitescu, A., and Kumar, P., 2007, MNRAS 376, 1065

  43. "The nature of the outflow in gamma-ray bursts", Kumar, P., McMahon, E., et al., 2007, MNRAS 376, 57

  44. "GRB 060313: A New Paradigm for Short-hard Bursts?", Roming, Peter, et al., 2006, ApJ, 651, 985

  45. "No universality for the electron power-law index (p) in gamma-ray bursts and other relativistic sources", Shen, Rongfeng, Kumar, P., and Robinson, Edward, L., 2006, MNRAS 371, 1441

  46. "Swift observations of the prompt X-ray emission and afterglow from GRB050126 and GRB050219A", Goad, M.R., et al., 2006, A&A 449, 89

  47. "A unified picture for gamma-ray burst prompt and X-ray afterglow emissions", Kumar, P., McMahon, E., et al., 2006, MNRAS 367, 52

  48. "Distribution of gamma-ray burst ejecta energy with Lorentz factor", Granot, Jonathan and Kumar, P., 2006, MNRAS 366, 13

  49. "Reverse shock emission as a probe of gamma-ray burst ejecta", McMahon, E., Kumar, P., and Piran, T., 2006, MNRAS 366, 575

  50. "Swift Observations of the X-Ray Bright GRB 050315", Vaughan, S., et al., 2006, ApJ 638, 920

  51. "Swift Panchromatic Observations of the Bright Gamma-Ray Burst GRB 050525a", Blustin, A.J., et al., 2006, ApJ 637, 901

  52. "Discovery of an Afterglow Extension of the Prompt Phase of Two Gamma-Ray Bursts Observed by Swift", Barthelmy, S.D., et al., 2005, ApJ 635, 133

  53. "The afterglow of GRB 050709 and the nature of the short-hard gamma-ray bursts", Fox, D.B., et al., 2005, Nature 437, 845

  54. "An unexpectedly rapid decline in the X-ray afterglow emission of long Gamma-ray bursts", Tagliaferri, G., et al. 2005, Nature 436, 985

  55. "An HST Search for Supernovae Accompanying X-Ray Flashes", Soderberg, A., et al, 2005, ApJ 627, 877

  56. "Swift Observations of GRB 050128: The Early X-Ray Afterglow", Campana, S., et al., 2005, ApJ 625, 23

  57. "The Swift Gamma-ray Burst Mission", Gehrels, N. et al., 2004, ApJ 611, 1005

  58. "Prompt Gamma-ray and Early Afterglow Emission in the External Shock Model", McMahon, E., Kumar, P., and Panaitescu, A., 2004, MNRAS 354, 915

  59. "Prompt Gamma-Ray and Early Afterglow Emission in the External Shock Model", McMahon, E., Kumar, P., and Panaitescu, A., 2004, to appear in MNRAS.

  60. "The Slow Decay of Some Radio Afterglows - A puzzle for the Simplest Gamma-Ray Burst Fireball Model", Panaitescu, A., and Kumar, P., 2004, MNRAS 350, 213.

  61. "Analysis of Two Scenarios for the Early Optical Emission of the GRB Afterglows 990123 and 021211", Panaitescu, A., and Kumar, P., 2004, MNRAS 353, 511.

  62. "A Unified Treatment of the Gamma-Ray Burst 021211 and its Afterglow", Kumar, P., and Panaitescu, A.,2003, MNRAS 346, 905.

  63. "The Effect of Angular Structure of Gamma-Ray burst Outflows on the Afterglow Emission", Panaitescu, A., and Kumar, P.,2003, ApJ 592, 390.

  64. "The Evolution of a Structured Relativistic Jet and GRB Afterglow Light-curves", Kumar, P., and Granot, J., 2003, ApJ 591, 1075.

  65. "Constraining the Structure of GRB Jets Through the Afterglow Light Curves", Kumar, P., and Granot, J., 2003, ApJ 591, 1086.

  66. "Creation of Electron-Positron Pair Wind in Gamma-Ray Bursts and its Effect on the Early Afterglow Emission", Kumar, P., and Panaitescu, A., 2004, MNRAS 354, 252

  67. "GRB021004: A Massive Progenitor Star Surrounded by Shells", Shaefer, B.E.,,2003, ApJ 588, 387.

  68. "X-ray Lines from Gamma-ray Bursts", Kumar, P., and Narayan, R., 2003, ApJ 584, 895.

  69. "Angular Momentum Extraction by Gravity Waves in the Sun", Talon, S., Kumar, P., and Zahn, J-P., 2002, ApJ Lett. 574, L175.

  70. "Off-Axis Afterglow Emition from Jetted Gamma-Ray Bursts", Granot, J., Panaitescu, A., Kumar, P., and Woosley, S.E., 2002,
    ApJ Lett. 570, L61.

  71. "Properties of Relavistic Jets in Eight Gamma-Ray Burst Afterglows", Panaitescu, A., and Kumar, P., 2002, ApJ 576, 120.

  72. "Fundamental Physical Parameters of Collimated Gamma-ray Burst Afterglows," Panaitescu, A., and Kumar, P., 2001, ApJ 560, L49

  73. "Observational Prospects for Afterglows of Short-Duration Gamma-ray Bursts", Panaitescu, A., Kumar, P., and Narayan, R., 2001, ApJ Lett. 561, L171

  74. "The energy of Long-duration Gamma-ray Bursts", Piran, T., Kumar, P., Panaitescu, A., and Piro, L., 2001, ApJ Lett. 560, L167

  75. "Accretion Models of Gamma-ray Bursts", Narayan, R., Piran, T., and Kumar, P., 2001, ApJ 557, 949

  76. "Jet Energy and other Parameters for the Afterglows of Gamma-Ray Bursts 980703, 990123, 990510, and 991216 Determined from Modeling of Multi-Frequency Data", Panaitescu, A., and Kumar, P., 2001, ApJ 554, 667

  77. "BeppoSAX confirmation of beamed afterglow emission from GRB 990510", Pian, E., Soffitta, P., Aslessi, A., Amati, L., Costa, E., Frontera, F., Fruchter, A., Masetti, N., Palazzi, E., Paniaitescu, A., and Kumar, P., A&A 372, 456

  78. "Afterglow Emission from Naked Gamma-ray Bursts", Kumar, P. and Panaitescu, A., 2000, ApJ Lett. 541, L51

  79. "Steepening of Afterglow Decay for Jets Interacting with Stratified Media", Kumar, P., and Panaitescu, A., 2000, ApJ Lett. 541, L9

  80. "Analytic Light-Curves of Gamma-ray Burst Afterglows: Homogeneous versus Wind External Media", Panaitescu, A., and Kumar, P., 2000, ApJ 543, 66

  81. "The Distribution of Burst Energy and Shock Parameters for Gamma-ray Bursts", Kumar, P., 2000, ApJ Lett. 538, L125

  82. "Some Observational Consequences of GRB Shock Models", Kumar, P., and Piran, T., 2000, ApJ 532, 286

  83. "Energetics and Luminosity Function of Gamma-ray Bursts", Kumar, P., and Piran, T., 2000, ApJ 535, 152

  84. "Source depth for solar p-modes", Kumar, P., and Basu, S., 2000, ApJ Lett. 545, L65

  85. "Energy distribution of Solar oscillation Modes inferred from Space-Based measurements", Wooddard, M.F., Korzennik, S.G., Rabello-Soars, M.C., Kumar, P., Tarbell, T.D., and Acton, S., 2001 ApJ Lett. 548, L103

  86. "Tidal spin-up of stars in dense stellar cusps around massive black holes", Alexander, T., and Kumar, P., 2001, ApJ 549, 948

  87. "Gamma-Ray Burst Energetics", Kumar, P., 1999, ApJ Lett. 523, L113

  88. "Line asymmetry of solar p-modes: Properties of acoustic sources", Kumar, P., and Basu, S., 1999, ApJ 519, 396

  89. "Line asymmetry of solar p-modes: Reversal of asymmetry in intensity power spectra", Kumar, P., and Basu, S., 1999, ApJ 519, 389

  90. "Angular momentum redistribution by waves in the Sun", Kumar, P., Suzanne, T., and Zahn, J-P, 1999, ApJ 520, 859

  91. "The structure of the central disk of NGC 1068: a clumpy disk model", Kumar, P., 1998, ApJ 519, 599

  92. "Dissipation of a tide in a differentially rotating star", Talon, S., and Kumar, P., 1998, ApJ 503, 387

  93. "Possible explanations for some unusually large velocity dispersion molecular clouds near the Galactic centre", Kumar, P., and Riffert, H., 1997, MNRAS 292, 871

  94. "Localized Helioseismic Constraints on Solar Structure", Bahcall, J.N., Basu, S., and Kumar, P., 1997, ApJ Lett. 485, L91

  95. "On the orbital decay of the PSR J0045-7319 Binary", Kumar, P. and Quataert, E., 1998, ApJ 493, 412

  96. "Differential rotation enhanced dissipation of tides in the PSR Joo45-7319 Binary", Kumar, P. and Quataert, E., 1997, ApJ Lett. 479. L51

  97. "Excitation and Damping of Solar Acoustic Oscillations", Kumar, P., invited review, in "Solar Convection and Oscillations and their relationship", eds. F.P. Pijpers, J. Christensen-Dalsgaard & C. Rosentha, (Kluwer, Dordrecht)

  98. "Angular momentum transport by gravity waves and its effect on the rotation of the solar interior", Kumar, P., and Quataert, E.J., 1997, ApJ Lett. 475, L143

  99. "Excitation of Solar Oscillations", Kumar, P., 1997, invited review, IAU symposium 181 "Sounding Solar and Stellar Interiors", eds. F.X. Schmider & J. Provost

  100. "Asymmetries of Solar p-mode Line Profiles", Abrams, D., and Kumar, P., 1996, ApJ 472, 882

  101. "Observational Search for Solar g-modes: Some Theoretical Considerations", Kumar, P., Quataert, E.J., and Bahcall, J.N., 1996, ApJ Lett. 458, L83

  102. "Nonlinear Damping of Oscillations in Tidal-Capture Binaries", Kumar, P., and Goodman, G., 1996, ApJ 466, 946

  103. "HI Observations of two Molecular Clouds with Extremely Large Velocity Dispersions", Riffert, H., Kumar, P., and Huchtmeier, W.K., 1997, MNRAS 284, 749

  104. "On the validity of the classical apsidal motion formula for tidal distortion", Quataert, E.J., Kumar, P. and Ao, C.O., 1996, ApJ 463, 284

  105. "On the Interaction of Convection and Rotation in Stars", Kumar, P., Narayan, R. and Loeb, A.,1995, ApJ 453, 480

  106. "Tidal Excitation of Modes in Binary Systems with Applications to Binary Pulsars", Kumar, P., Ao, C.O., and Quataert, E.J., 1995, ApJ 449, 294

  107. "Causality in Strong Shear Flows", Narayan, R., Loeb, A., and Kumar, P., 1994, ApJ 431,359

  108. "Properties of Acoustic Sources in the Sun", Kumar, P., 1994, ApJ 428, 827

  109. "Limits on Coronal Reflection Using High-Frequency Solar Oscillations", Kumar, P., Fardal, M.A., Jefferies, S.M., Duvall, T.L. Jr., Harvey, J.W., and Pomerantz, M.A., 1994, ApJ Lett. 422, L29

  110. "Excitation of Solar p-modes", Goldreich, P., Murray, N., and Kumar, P., 1994, ApJ 424, 466

  111. "Effect of Nonlinear Interactions Among Solar acoustic Modes on p-mode Frequencies", Kumar, P., Goldreich, P., and Kerswell, R., 1994, ApJ 427, 483

  112. "g-modes and The Solar Neutrino Problem", Bahcall J.N., and Kumar, P., 1993, ApJ Lett. 409, L73

  113. "Solar Oscillations with Frequencies above the Acoustic Cutoff Frequency", Kumar, P., 1992, invited review, Proc. of GONG Meeting, ed. T.Brown

  114. "Reconstructing the Primordial Spectrum of Fluctuations of the Universe from the Observed Nonlinear Clustering of Galaxies", Hamilton, A.J.S., Kumar, P., Lu, E., and Matthews, A., 1991, ApJ Lett. 374, L1

  115. "The Location of the Source of High Frequency Solar Acoustic Oscillations", Kumar, P., and Lu, E., 1991, ApJ Lett. 375, L35

  116. "Implications of Solar P-Mode Frequency Shifts", Goldreich, P., Murray, N., Willette, G., and Kumar, P., 1991, ApJ 370, 752

  117. "Thermal and Mechanical Damping of Solar p-Modes", Goldreich, P., Kumar, P., 1991, ApJ 374, 366

  118. "Excitation of Solar and Stellar Oscillations", Cox, A.N., Chitre, S.M., and Frandsen, S. and Kumar, P., 1990, invited review in Solar Interior and Atmosphere, eds. Cox, A.N., Livingston, W.C., and Matthews, M.

  119. "Wave Generation By Turbulent Convection", Goldreich, P. and Kumar, P., 1990, ApJ 363, 694

  120. "What are the Observed High Frequency Solar Acoustic Modes?", Kumar, P., Duvall, .L., Harvey, J.W., Jefferies, S.M., Pomerantz, M.A., and Thompson, M.J., 1990, Proc. Oji International Seminar, eds. Osaki, Y. and Shibahashi, H.

  121. "Nonlinear Interactions Among Solar Acoustic Modes", Kumar, P. and Goldreich, P., 1989, ApJ 342, 558

  122. "Distribution Functions for the Time Averaged Energies of Stochastically Excited Solar p-modes", Kumar, P., Franklin, J. and Goldreich, P., 1988, ApJ 328, 879

  123. "The Interaction of Acoustic Radiation with Turbulence", Goldreich, P., and Kumar, P., 1988, ApJ 326, 462

    Last Updated September 2015