Publications

Ofer Cohen Publications

  1. Igor V. Sokolov, Haomin Sun, Gabor Toth, Zhenguang Huang, Valeriy Tenishev, Lulu Zhao, Jozsef Kota, Ofer Cohen, and Tamas I. Gombosi. High resolution finite volume method for kinetic equations with Poisson brackets. Journal of Computational Physics, 476:111923, March 2023.

  2. B. J. Lynch, B. E. Wood, M. Jin, T. T¨or¨ok, X. Sun, E. Palmerio, R. A. Osten, A. A. Vidotto, O. Cohen, J. D. Alvarado-G´omez, J. J. Drake, V. S. Airapetian, Y. Notsu, A. Veronig, K. Namekata, R. M. Winslow, L. K. Jian, A. Vourlidas, N. Lugaz, N. Al-Haddad, W. B. Manchester, C. Scolini, C. J. Farrugia, E. E. Davies, T. Nieves-Chinchilla, F. Carcaboso, C. O. Lee, and T. M. Salman. Connecting Solar and Stellar Flares/CMEs: Expanding Heliophysics to Encompass Exoplanetary Space Weather. arXiv e-prints, page arXiv:2210.06476, October 2022.
  3. Cecilia Garraffo, Juli´an D. Alvarado-G´omez, Ofer Cohen, and Jeremy J. Drake. Revisiting the Space Weather Environment of Proxima Centauri b. Astroph. J., 941(1):L8, December 2022.
  4. Soumitra Hazra, Ofer Cohen, and Igor V. Sokolov. Exoplanet Radio Tran- sits as a Probe for Exoplanetary Magnetic Fields-Time-dependent MHD Simulations. Astroph. J., 936(2):144, September 2022
  5. Kalpa Henadhira Arachchige, Ofer Cohen, Andres Munoz-Jaramillo, and Anthony R. Yeates. Comparing the Performance of a Solar Wind Model from the Sun to 1 au Using Real and Synthetic Magnetograms. Astroph. J., 938(1):39, October 2022.
  6. F. Fraschetti, J. D. Alvarado-Gomez, J. J. Drake, O. Cohen, and C. Garraffo. Stellar Energetic Particle Transport in the Turbulent and CME-disrupted Stellar Wind of AU Microscopii. arXiv e-prints, page arXiv:2207.08952, July 2022.
  7. Ofer Cohen, Juli´an D. Alvarado-G´omez, Jeremy J. Drake, Laura M. Har- bach, Cecilia Garraffo, and Federico Fraschetti. Space-weather-driven Vari- ations in Lyα Absorption Signatures of Exoplanet Atmospheric Escape: MHD Simulations and the Case of AU Mic b. Astroph. J., 934(2):189, August 2022.
  8. Juli´an. D. Alvarado-G´omez, Jeremy J. Drake, Ofer Cohen, Federico Fraschetti, Cecilia Garraffo, and Katja Poppenh¨ager. Coronal mass ejections and exoplanets: A numerical perspective. Astronomische Nachrichten, 343(4):e10100, May 2022. 
  9. Juli´an D. Alvarado-G´omez, Ofer Cohen, Jeremy J. Drake, Federico Fraschetti, Katja Poppenhaeger, Cecilia Garraffo, Judy Chebly, Ekaterina Ilin, Laura Harbach, and Oleg Kochukhov. Simulating the Space Weather in the AU Mic System: Stellar Winds and Extreme Coronal Mass Ejections. Astroph. J., 928(2):147, April 2022. 
  10. Lotfi Ben-Jaffel, Gilda E. Ballester, Antonio Garc ́ıa Mun ̃oz, Panayotis Lavvas, David K. Sing, Jorge Sanz-Forcada, Ofer Cohen, Tiffany Kataria, Gregory W. Henry, Lars Buchhave, Thomas Mikal-Evans, Hannah R. Wake- ford, and Mercedes L ́opez-Morales. Signatures of strong magnetization and a metal-poor atmosphere for a Neptune-sized exoplanet. Nature Astronomy, 6:141–153, January 2022.
  11. L.  Harbach,   Sofia  P.  Moschou,   Cecilia  Garraffo,   J.  Drake,   Juli´an  D. Alvarado-G´omez, O. Cohen, and Federico Fraschetti.  Stellar Winds Drive Variations in Exoplanet Evaporative Outflows and Absorption. ApJ, submitted.
  12.  Juli´an D. Alvarado-G´omez, Jeremy J. Drake, Cecilia Garraffo, Ofer Cohen, Katja Poppenhager, Rakesh Yadav, and Sofia P. Moschou. An Earth-like stellar wind environment for Proxima Centauri c. ApJ, in press.
  13.  Ofer Cohen, C. Garraffo, Sofia-Paraskevi Moschou, Jeremy J. Drake, J. D. Alvarado-G´omez,  Alex  Glocer,  and  Federico  Fraschetti.  The  Space  Envi- ronment and Atmospheric Joule Heating of the Habitable Zone Exoplanet TOI 700 d. Astroph. J., 897(1):101, July 2020.
  14.  V. S. Airapetian et. al, Impact  of  space  weather  on  climate  and  habitabil- ity of terrestrial-type exoplanets. International Journal of Astrobiology, 19(2):136–194, April 2020.
  15.  G. Gronoff, P. Arras, S. Baraka, J. M. Bell, G. Cessateur, O. Cohen, S. M. Curry, J. J. Drake, M. Elrod, J. Erwin, K. Garcia-Sage, C. Garraffo, A. Glo- cer, N. G. Heavens, K. Lovato, R. Maggiolo, C. D. Parkinson, C. Simon Wedlund, D. R. Weimer, and W. B. Moore. Atmospheric Escape Processes and Planetary Atmospheric Evolution. Journal of Geophysical Research (Space Physics), 125(8):e27639, August 2020.
  16.  Munazza  K.  Alam,  Mercedes  L´opez-Morales,  Nikolay  Nikolov,  David  K. Sing,  Gregory  W.  Henry,  Claire  Baxter,  Jean-Michel  D´esert,  Joanna  K. Barstow, Thomas Mikal-Evans, Vincent Bourrier, Panayotis Lavvas, Han- nah R. Wakeford, Michael H. Williamson, Jorge Sanz-Forcada, Lars A. Buchhave,  Ofer  Cohen,  and  Antonio  Garc´ıa  Mun˜oz.   The  Hubble  Space Telescope PanCET Program: An Optical to Infrared Transmission Spec- trum of HAT-P-32Ab. Astron. J., 160(1):51, July 2020.
  17. Giovanni  Bruno,  Nikole  K.  Lewis,  Munazza  K.  Alam,  Mercedes  L´opez- Morales, Joanna K. Barstow, Hannah R. Wakeford, David K. Sing, Gre- gory W. Henry, Gilda E. Ballester, Vincent Bourrier, Lars A. Buchhave, Ofer Cohen, Thomas Mikal-Evans, Antonio Garc´ıa Mun˜oz, Panayotis Lav- vas, and Jorge Sanz-Forcada. WASP-52b. The effect of star-spot correction on atmospheric retrievals. MNRAS, 491(4):5361–5375, February 2020.
  18. S. P. Moschou, I. V. Sokolov, O. Cohen, G. Toth, J. J. Drake, Z. Huang, C. Garraffo, J. D. Alvarado-G´omez, and T. Gombosi. Coupled MHD – Hybrid Simulations of Space Plasmas. arXiv e-prints, page arXiv:1911.08660, Nov 2019.
  19.  Juli´an  D.  Alvarado-G´omez,  Jeremy  J.  Drake,  Sofia  P.  Moschou,  Cecilia Garraffo, Ofer Cohen, NASA LWS Focus Science Team: Solar-Stellar Con- nection, Rakesh K. Yadav, and Federico  Fraschetti.  Coronal Response  to Magnetically Suppressed CME Events in M-dwarf Stars. Astroph. J., 884(1):L13, Oct 2019.

  20. Qusai Al Shidi, Ofer Cohen, Paul Song, and Jiannan Tu. Time-Dependent Two-Fluid Magnetohydrodynamic Model and Simulation of the Chromosphere. arXiv e-prints , page arXiv:1904.01572, Apr 2019.

  21. Sofia-Paraskevi Moschou, Jeremy J. Drake, Ofer Cohen, Julian D. Alvarado-Gomez, Cecilia Garraffo, and Federico Fraschetti. The Stellar CME- are relation: What do historic observations reveal? arXiv e-prints, page ApJ 877,  18, 2019.

  22. Julian D. Alvarado-Gomez, Cecilia Garrao, Jeremy J. Drake, Benjamin P. Brown, Jeffrey S. Oishi, Sofia P. Moschou, and Ofer Cohen. Breezing through the Space Environment of Barnard’s Star b. Astroph. J., 875(2):L12, Apr 2019.

  23. F. Fraschetti, J. J. Drake, J. D. Alvarado-Gomez, S. P. Moschou, C. Garraffo, and O. Cohen. Stellar Energetic Particles in the Magnetically Turbulent Habitable Zones of TRAPPIST-1-like Planetary Systems. Astroph. J., 874(1):21, Mar 2019.

  24. V. Bourrier, A. Lecavelier des Etangs, D. Ehrenreich, J. Sanz-Forcada, R. Allart, G. E. Ballester, L. A. Buchhave, O. Cohen, D. Deming, T. M. Evans, A. Garca Mu~noz, G. W. Henry, T. Kataria, P. Lavvas, N. Lewis, M. Lopez-Morales, M. Marley, D. K. Sing, and H. R. Wakeford. Hubble PanCET: an extended upper atmosphere of neutral hydrogen around the warm Neptune GJ 3470b. A&A , 620:A147, Dec 2018.

  25. Sofia-Paraskevi Moschou, Igor Sokolov, Ofer Cohen, Jeremy J. Drake, Dmitry Borovikov, Justin C. Kasper, Julian D. Alvarado-Gomez, and Ce- cilia Garraffo. Synthetic Radio Imaging for Quiescent and CME-flare Scenarios. Astroph. J., 867:51, November 2018.
  26. Ofer Cohen, Sofia-Paraskevi Moschou, Alex Glocer, Igor V. Sokolov, Tsevi Mazeh,  Jeremy  J.  Drake,  C.  Garraffo,  and  J.  D.  Alvarado-G´omez.   Exo- planet Modulation of Stellar Coronal Radio Emission. Astron. J., 156:202, November 2018.
  27. C. Garraffo, J. J. Drake, J. D. Alvarado-Gomez, S. P. Moschou, and O. Co- hen. The Magnetic Nature of the Cataclysmic Variable Period Gap. ArXiv e-prints, page arXiv:1808.09450, August 2018.
  28. Julia´n   D.   Alvarado-G´omez,   Jeremy   J.   Drake,   Ofer   Cohen,   Sofia   P. Moschou, and Cecilia Garraffo. Suppression of Coronal Mass Ejections in Active Stars by an Overlying Large-scale Magnetic Field: A Numerical Study. Astroph. J., 862:93, August 2018.
  29. C. Garraffo, J. J. Drake, A. Dotter, J. Choi, D. J. Burke, S. P. Moschou, D.  Alvarado-G´omez,  V.  L.  Kashyap,  and  O.  Cohen.   The  Revolution Revolution: Magnetic Morphology Driven Spin-down. Astroph. J., 862:90, July 2018.
  30. Rona Oran, Benjamin P. Weiss, and Ofer Cohen. Were chondrites mag- netized by the early solar wind? Earth and Planetary Science Letters, 492:222–231, June 2018.
  31. V.  S.  Airapetian,   V.  Adibekyan,   M.  Ansdell, O.  Cohen,   M.     Cuntz, W. Danchi, C. F. Dong, J. J. Drake, A. Fahrenbach, K. France, K. Garcia- Sage,  A. Glocer,  J. L. Grenfell,  G. Gronoff,  H. Hartnett,  W.  Henning, N. R. Hinkel,  A. G. Jensen,  M. Jin,  P.  Kalas,  S. R. Kane,  K.   Kobayashi, R.  Kopparapu,  J.  Leake,  M.  L´opez-Puertas,  T.  Lueftinger,  B.  Lynch, W. Lyra, A. M. Mandell, K. E. Mandt, W. B. Moore, D. Nna-Mvondo, Y. Notsu, H. Maehara, Y. Yamashiki, K. Shibata, L. D. Oman, R. A.  Osten, A. Pavlov, R. M. Ramirez, S. Rugheimer, J. E. Schlieder, J. D. Schnittman, E. L. Shock, C. Sousa-Silva, M. J. Way, Y. Yang, P. A. Young, and G. P. Zank. Exploring Extreme Space Weather Factors of Exoplanetary Habit- ability.  ArXiv e-prints, page arXiv:1803.03751, March 2018.
  32. Ofer Cohen, Alex Glocer, Cecilia Garraffo, Jeremy J. Drake, and Jared M. Bell. Energy Dissipation in the Upper Atmospheres of TRAPPIST-1 Plan- ets. Astroph. J., 856:L11, March 2018.
  33. Quentin Pognan, Cecilia Garraffo, Ofer Cohen, and Jeremy J. Drake. The Solar Wind Environment in Time. Astroph. J., 856:53, March 2018.
  34. N. Nikolov, D. K. Sing, J. Goyal, G. W. Henry, H. R. Wakeford, T. M. Evans,  M.  L´opez-Morales,  A.  Garc´ıa  Mun˜oz,  L.  Ben-Jaffel,  J.  Sanz-  For- cada, G. E. Ballester, T. Kataria, J. K. Barstow, V. Bourrier, L.  A. Buchhave, O. Cohen, D. Deming, D.  Ehrenreich,  H.  Knutson,  P.  Lav-  vas, A. Lecavelier des Etangs, N. K. Lewis, A. M. Mandell, and M. H. Williamson. Hubble PanCET: an isothermal day-side atmosphere for the bloated gas- giant HAT-P-32Ab.  MNRAS, 474:1705–1717, February 2018.
  35. Julia´n D. Alvarado-G´omez, Gaitee A. J. Hussain, Jeremy J. Drake, Jean- Franc¸ois Donati, Jorge Sanz- Forcada, Beate Stelzer, Ofer Cohen, Eliana M. Amazo-G´omez,  Jason  H.  Grunhut,  Cecilia  Garraffo,  Sofia  P.  Moschou, James Silvester, and Mary E. Oksala. Far beyond the Sun – I. The beating magnetic heart in Horologium. MNRAS, 473:4326–4338, February 2018.
  36. F. Fraschetti, J. J. Drake, O. Cohen, and C. Garraffo. Mottled Protoplan- etary Disk Ionization by Magnetically Channeled T Tauri Star Energetic Particles.  Astroph. J., 853:112, February 2018.
  37. V. S. Airapetian, W. C. Danchi, C. F. Dong, S. Rugheimer, M. Mlynczak, K.  B.  Stevenson,  W.  G.  Henning,  J.  L.  Grenfell,  M.  Jin,   A.  Glocer,   G.  Gronoff,   B.  Lynch,   C.  Johnstone,   T.  Lueftinger,   M.  Guedel, K.  Kobayashi,  A.  Fahrenbach,  G.  Hallinan,  V.  Stamenkovic,  O.  Cohen, W. Kuang, B. van der Holst, C. Manchester, G. Zank, O. Verkhoglyadova, J. Sojka, H. Maehara, Y. Notsu, Y. Yamashiki, K. France, M. Lopez Puer- tas, B. Funke, C. Jackman, C. Kay, D. Leisawitz, and D. Alexander. Life Beyond the Solar System: Space Weather and Its Impact on Habitable Worlds.  ArXiv e-prints, page arXiv:1801.07333, January  2018.
  38. Sofia-Paraskevi Moschou, Jeremy J. Drake, Ofer Cohen, Julian D. Alvarado-Gomez, and Cecilia Garraffo. A Monster CME Obscuring a De- mon Star Flare.  Astroph. J., 850:191, December 2017.
  39. Thomas M. Evans, David K. Sing, Tiffany Kataria, Jayesh Goyal, Nikolay Nikolov, Hannah R. Wakeford, Drake Deming, Mark S. Marley, David S. Amundsen, Gilda E. Ballester, Joanna K. Barstow, Lotfi Ben- Jaffel, Vin- cent Bourrier, Lars A. Buchhave, Ofer Cohen, David Ehrenreich, Antonio Garc´ıa  Mun˜oz,  Gregory  W.  Henry,  Heather  Knutson,  Panayotis  Lavvas, Alain  Lecavelier  Des  Etangs,  Nikole  K.  Lewis,  Mercedes  L´opez-Morales, Avi M. Mandell, Jorge Sanz-Forcada, Pascal Tremblin, and Roxana Lupu. An ultrahot gas-giant exoplanet with a stratosphere. Nature, 548:58–61, August 2017.
  40. K. Garcia-Sage, A. Glocer, J. J. Drake, G. Gronoff, and O. Cohen. On the Magnetic Protection of the Atmosphere of Proxima Centauri b.  Astroph.  J., 844:L13, July 2017.
  41. Cecilia Garraffo, Jeremy J. Drake, Ofer Cohen, Julian D. Alvarado-G´omez, and Sofia P. Moschou. The Threatening Magnetic and Plasma Environment of the TRAPPIST-1 Planets. Astroph. J., 843:L33, July 2017.
  42. Chuanfei Dong, Manasvi Lingam, Yingjuan Ma, and Ofer Cohen. Is Prox- ima Centauri b Habitable? A Study of Atmospheric Loss. Astroph. J., 837:L26, March 2017.
  43. O. Cohen. A Comparison between Physics-based and Polytropic MHD Models for Stellar Coronae and Stellar Winds of Solar Analogs. Astroph.  J., 835:220, February 2017.
  44. O. Cohen, R. Yadav, C. Garraffo, S. H. Saar, S. J. Wolk, V. L. Kashyap, J. J. Drake, and I. Pillitteri. Giant Coronal Loops Dominate the Quiescent X-Ray Emission in Rapidly Rotating M Stars. Astroph. J., 834:14, January 2017.
  45. C. Garraffo, J. J. Drake, and O. Cohen. The Space Weather of Proxima Centauri b. Astroph. J., 833:L4, December  2016.
  46. Cecilia Garraffo, Jeremy J. Drake, and Ofer Cohen. The missing magnetic morphology term in stellar rotation evolution. A&A, 595:A110, November 2016.
  47. J. D. Alvarado-G´omez,  G. A. J. Hussain,  O. Cohen,  J. J. Drake,  C. Gar- raffo, J. Grunhut, and T. I. Gombosi. Simulating the environment around planet-hosting stars. II. Stellar winds and inner astrospheres. A&A, 594:A95, October 2016.
  48. J. D. Alvarado-G´omez,  G. A. J. Hussain,  O. Cohen,  J. J. Drake,  C. Gar- raffo, J. Grunhut, and T. I. Gombosi. Simulating the environment around planet-hosting stars. I. Coronal structure. A&A, 588:A28, April 2016.
  49. Thomas R. Ayres,  V. Kashyap,  S. Saar,  D. Huenemoerder,  H.   Korhonen, J. J. Drake, P. Testa, O. Cohen, C. Garraffo, T. Granzer, and K. Strass-  meier. FK Comae Berenices, King of Spin: The COCOA-PUFS Project.  The Astrophysical Journal Supplement Series, 223:5, March 2016.
  50. Idan Ginsburg, Xiawei Wang, Abraham Loeb, and Ofer Cohen. Detecting stars at the galactic centre via synchrotron emission. MNRAS, 455:L21– L25, January 2016.
  51. Jeremy J. Drake, Ofer Cohen, Cecilia Garraffo, and V. Kashyap. Stellar flares and the dark energy of CMEs. In A. G. Kosovichev, S. L. Hawley, and P. Heinzel, editors, Solar and Stellar Flares and their Effects on Planets, volume  320,  pages  196–201,  January 2016.
  52. G. A. J. Hussain, J. D. Alvarado-G´omez, J. Grunhut, J. F. Donati, E. Ale- cian, M. Oksala, J. Morin, R. Fares, M. Jardine, J. J. Drake, O. Cohen, S. Matt, P. Petit, S. Redfield,  and F. M. Walter.  A spectro-polarimetric  study of the planet-hosting G dwarf, HD 147513. A&A, 585:A77, January 2016. 
  53. J. D. Alvarado-G´omez, G. A. J. Hussain, J. Grunhut, R. Fares, J. F. Donati, E. Alecian,  O. Kochukhov,  M. Oksala,  J. Morin,  S. Redfield,  O.   Cohen, J. J. Drake, M. Jardine, S. Matt, P. Petit, and F. M. Walter. Activity and magnetic field structure of the Sun-like planet-hosting star HD 1237. A&A, 582:A38, October 2015.
  54. O. Cohen. Quantifying the Difference Between the Flux-Tube Expansion Factor  at  the  Source  Surface  and  at  the  Alfv´en  Surface  Using  a  Global MHD Model for the Solar Wind. Solar Physics, 290:2245–2263, August 2015.
  55. Cecilia Garraffo, Jeremy J. Drake, and Ofer Cohen. Magnetic Complexity as an Explanation for Bimodal Rotation Populations among Young Stars. Astroph. J., 807:L6, July 2015.
  56. O. Cohen, Y. Ma, J. J. Drake, A. Glocer, C. Garraffo, J. M. Bell, and T. I. Gombosi. The Interaction of Venus-like, M-dwarf Planets with the Stellar Wind of Their Host Star. Astroph. J., 806:41, June 2015.
  57. Cecilia Garraffo,  Jeremy  J.  Drake,  and  Ofer  Cohen.  Magnetic  Modulation of Stellar Angular Momentum Loss. In 18th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, volume 18, pages 177–182, January 2015.
  58. A. A. Vidotto, M. Jardine, A. C. Cameron, J. Morin, J. Villadsen,  S. H.  Saar, J. Alvarado, Ofer Cohen, V. Holzwarth, K. Poppenhaeger, and V. Re- ville. Cool Stars and Space Weather. In 18th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun, volume 18, pages 65–79, January 2015.
  59. O. Cohen, J. J. Drake, A. Glocer, C. Garraffo,  K. Poppenhaeger,  J. M.  Bell, A. J. Ridley, and T. I. Gombosi. Magnetospheric Structure and At- mospheric Joule Heating of Habitable Planets Orbiting M-dwarf Stars. As- troph. J., 790:57, July 2014.
  60. G. Le Chat, J. C. Kasper, O. Cohen, and S. R. Spangler. Diagnostics of the Solar Corona from Comparison between Faraday Rotation Measurements and Magnetohydrodynamic Simulations.  Astroph. J., 789:163, July  2014.
  61. I.  Pillitteri,  S.  J.  Wolk,  J.  Lopez-Santiago,  H.  M.  Gu¨nther,  S.  Sciortino, O. Cohen, V. Kashyap, and J. J. Drake. The Corona of HD 189733 and its X-Ray Activity. Astroph. J., 785:145, April 2014.
  62. O. Cohen and J. J. Drake. A Grid of MHD Models for Stellar Mass Loss  and Spin-down Rates of Solar Analogs.  Astroph. J., 783:55, March 2014.
  63. Jeremy J. Drake, Ofer Cohen, Seiji Yashiro, and Nat Gopalswamy. Im- plications of Mass and Energy Loss due to Coronal Mass Ejections on Magnetically Active Stars.  Astroph. J., 764:170, February  2013.
  64. C. Garraffo, O. Cohen, J. J. Drake, and C. Downs. The Effect of Limited Spatial Resolution of Stellar Surface Magnetic Field Maps on Magneto- hydrodynamic Wind and Coronal X-Ray Emission Models. Astroph. J., 764:32, February 2013.
  65. O.  Cohen,  J.  J.  Drake,  and  J.  K´ota.  The  Cosmic-Ray  Intensity  near  the Archean Earth. Astroph. J., 760:85, November 2012.
  66. O. Cohen and A. Glocer. Ambipolar Electric Field, Photoelectrons, and Their Role in Atmospheric Escape from Hot Jupiters. Astroph. J., 753:L4, July 2012.
  67. O. Cohen, J. J. Drake, and V. L. Kashyap. The Role of White Dwarfs in Cataclysmic Variable Spin-down.  Astroph. J., 746:L3, February  2012.
  68. O. Cohen. The independency of stellar mass-loss rates on stellar X-ray luminosity and activity level based on solar X-ray flux and solar wind ob- servations. MNRAS, 417:2592–2600, November 2011.
  69. I.  Pillitteri,  H.  M.  Gu¨nther,  S.  J.  Wolk,  V.  L.  Kashyap,  and  O.  Cohen. X-Ray Activity Phased with Planet Motion in HD 189733? Astroph. J., 741:L18, November 2011.
  70. O. Cohen, V. L. Kashyap, J. J. Drake, I. V. Sokolov, and T. I. Gombosi. The Dynamics of Stellar Coronae Harboring Hot Jupiters. II. A Space Weather Event on a Hot Jupiter.  Astroph. J., 738:166, September   2011.
  71. O. Cohen, V. L. Kashyap, J. J. Drake, I. V. Sokolov, C. Garraffo, and T. I. Gombosi. The Dynamics of Stellar Coronae Harboring Hot Jupiters. I. A Time-  dependent  Magnetohydrodynamic  Simulation  of  the Interplanetary Environment in the HD 189733 Planetary System. Astroph. J., 733:67, May 2011.
  72. M. Glenn Sterenborg, O. Cohen, J. J. Drake, and T. I. Gombosi. Modeling the young Sun’s solar wind and its interaction with Earth’s paleomagne- tosphere. Journal of Geophysical Research (Space Physics), 116:A01217, January 2011.
  73. O. Cohen, J. J. Drake, V. L. Kashyap, I. V. Sokolov, and T. I. Gombosi.   The Impact of Hot Jupiters on the Spin-down of their Host Stars. Astroph. J., 723:L64–L67, November 2010.
  74. O. Cohen, G. D. R. Attrill, N. A. Schwadron, N. U. Crooker, M. J. Owens, C. Downs, and T. I. Gombosi. Numerical simulation of the 12 May 1997 CME Event: The role of magnetic reconnection. Journal of Geophysical Research (Space Physics), 115:A10104, October 2010.
  75. I. Pillitteri, S. J. Wolk, O. Cohen, V. Kashyap, H. Knutson, C. M. Lisse, and G. W. Henry. XMM-Newton Observations of HD 189733 During Planetary Transits. Astroph. J., 722:1216–1225, October 2010.
  76. O. Cohen, J. J. Drake, V. L. Kashyap, G. A. J. Hussain, and T. I. Gombosi. The Coronal Structure of AB Doradus. Astroph. J., 721:80–89, September 2010.
  77. O. Cohen, J. J. Drake, V. L. Kashyap, H. Korhonen, D. Elstner, and T. I. Gombosi. Magnetic Structure of Rapidly Rotating FK Comae-type Coro- nae. Astroph. J., 719:299–306, August 2010.
  78. Ofer Cohen, Gemma D. R. Attrill, IV Manchester,  Ward  B.,  and Mered-  ith J. Wills-Davey. Numerical Simulation of an EUV Coronal Wave Based on the 2009 February 13 CME Event Observed by STEREO. Astroph. J., 705:587–602, November 2009.
  79. O. Cohen, J. J. Drake, V. L. Kashyap, S. H. Saar, I. V. Sokolov, W. B. Manchester, K. C. Hansen, and T. I. Gombosi. Interactions of the Magne- tospheres of Stars and Close-In Giant Planets. Astroph. J., 704:L85–L88, October 2009.
  80. O. Cohen, J. J. Drake, V. L. Kashyap, and T. I. Gombosi. The Effect of Magnetic Spots on Stellar Winds and Angular Momentum Loss. Astroph. J., 699:1501–1510, July 2009.
  81. Bertalan Zieger, Kenneth C. Hansen, Ofer Cohen, Tamas I. Gombosi, Thomas H. Zurbuchen, Brian J. Anderson, and Haje Korth. Upstream con- ditions at Mercury during the first MESSENGER flyby: Results from two independent solar wind models. Geophysical Research Letters, 36:L10108, May 2009.
  82. Y. D. Jia, C. T. Russell, L. K. Jian, W. B. Manchester, O. Cohen, A. Vourl- idas, K. C. Hansen, M. R. Combi, and T. I. Gombosi. Study of the 2007 April 20 CME-Comet Interaction Event with an MHD Model. Astroph. J., 696:L56–L60, May 2009.
  83. B. van der Holst, IV Manchester, W., I. V. Sokolov, G. T´oth, T. I. Gombosi, D. DeZeeuw, and O. Cohen. Breakout Coronal Mass Ejection or Streamer Blowout: The Bugle Effect. Astroph. J., 693:1178–1187, March 2009. 
  84. N. Lugaz, A. Vourlidas, I. I. Roussev, C. Jacobs, IV Manchester, W. B., and O. Cohen. The Brightness of Density Structures at Large Solar Elongation Angles: What Is Being Observed by STEREO SECCHI? Astroph. J., 684:L111, September 2008.
  85. Alberto  M.  V´asquez,  Richard  A.  Frazin,  Keiji  Hayashi,  Igor  V.  Sokolov, Ofer Cohen, IV Manchester, Ward B., and Farzad Kamalabadi.  Validation  of Two MHD Models of the Solar Corona with Rotational Tomography. Astroph. J., 682:1328–1337, August 2008.
  86. Y. C. M. Liu, M. Opher, O. Cohen, P. C. Liewer, and T. I. Gombosi. A Simulation of a Coronal Mass Ejection Propagation and Shock Evolution in the Lower Solar Corona. Astroph. J., 680:757–763, June 2008.
  87. I. V. Sokolov, K. G. Powell, O. Cohen, and T. I. Gombosi. Computational MagnetoHydrodynamics, Based on Solution of the Well-Posed Riemann Problem. In N. V. Pogorelov, E. Audit, and G. P. Zank, editors, Numerical Modeling of Space Plasma Flows, volume 385, page 291, April 2008.
  88. O.  Cohen,  I.  V.  Sokolov,  I.  I.  Roussev,  and  T.  I.  Gombosi.   Validation   of a synoptic solar wind model. Journal of Geophysical Research (Space Physics), 113:A03104, March  2008.
  89. O. Cohen, I. V. Sokolov, I. I. Roussev, N. Lugaz, W. B. Manchester, T. I. Gombosi, and C. N. Arge. Validation  of  a  global  3D  heliospheric  model  with observations for the May 12, 1997 CME event. Journal of Atmospheric and Solar-Terrestrial Physics, 70:583–592, February   2008.
  90. O. Cohen, I. V. Sokolov, I. I. Roussev, C. N. Arge, W. B. Manchester, T. I. Gombosi, R. A. Frazin, H. Park, M. D. Butala, F. Kamalabadi,    and M. Velli. A Semiempirical Magnetohydrodynamical Model of the Solar Wind. Astroph. J., 654:L163–L166, January 2007.
  91. O. Cohen, L. A. Fisk, I. I. Roussev, G. Toth, and T. I. Gombosi. En- hancement of Photospheric Meridional Flow by Reconnection Processes. Astroph. J., 645:1537–1542, July 2006.
  92. P.  L. Israelevich,  A. I. Ershkovich,  T. I. Gombosi,  F. M. Neubauer,  and O. Cohen. Fine structure of the diamagnetic cavity boundary in  comet Halley. Journal of Geophysical Research (Space Physics), 108:1097, Febru- ary 200