IAU S264 Solar and Stellar Variability – Impact on Earth and Planets

3 - 7 August 2009


Coordinating Division: II
SOC chairs: Alexandre H. Andrei (Brasil), Alexander Kosovichev (USA), and Jean-Pierre Rozelot (France). SOC members: Annie Baglin (France), Maria Pia Di Mauro (Italy), Julio A. Fernandez (Uruguay), Eduardo Janot Pacheco (Brasil), John D. Landstreet (Canada), Cristina H. Mandrini (Argentina), Hiroko Miyahara (Japan), Mudumba Parthasarathy (India), Ignasi Ribas (Spain), Franck Selsis (France), Jill C. Tarter (USA), Jingxiu Wang (China Nanjing), and Lev M. Zeleny (Russia).
Editors: Alexandre H. Andrei, Alexander Kosovichev & Jean-Pierre Rozelot
Contact: Alexander Kosovichev - sasha@sun.stanford.edu
URL: www.on.br/iau-s264/index.html


Principal topics
The most critical aspects of the solar and stellar variability and its impact on the Earth and planets, including:
- physical mechanisms of solar and stellar variability
- solar diameter and irradiance measurements
- helio- and asteroseismic inferences
- variability of spectral irradiance and energetic particles
- solar cycles and variability on century timescale
- effects on space weather and solar system planets
- implications for Earth’s climate
- stellar magnetic activity and cycles
- brightness changes in solar-type stars and stellar surface structures
- effects of magnetic activity on planet formation and evolution
- space- and ground-based observational projects

S264 Plenary Review, Wednesday 5 August, 09:00 – 10:00 hr:
The Sun and stars as the primary energy input in planetary atmospheres (R) Ignasi Ribas

Program

Monday 3 August

I. Observations of solar and stellar variability
11:00 One solar cycle of solar astrometry with MDI/SOHO (Marcelo Emilio, Brazil)
11:25 Helio- and asteroseismic inferences (Hiromoto Shibahashi, Japan)
11:50 Variability of the solar spectral irradiance and energetic particles (Adriana Silva Valio, Brazil)
12:15 A solar cycle lengthwise series of solar diameter measurements (Alexandre Humberto Andrei, Brazil)
12:30 lunch


II. Solar and stellar cycles and variability on century timescale
14:30 Sunspot cycles and grand minima (Dmitry Sokoloff, Russia)
14:55 Stellar magnetic cycles (Antonino Francesco Lanza, Italy)
15:20 Do young Suns undergo magnetic reversals? (Stephen Marsden, Australia)
15:35 coffee break
16:00 Long-term stellar variability (Isabella Pagano, Italy)
16:25 The cycles of Alpha Centauri (Thomas Ayres, USA)
16:40 Evolution of the large-scale magnetic field over three solar cycles (Todd Hoeksema, USA)
16:55 Cycle-to-cycle activity variations and the solar dynamo (Kristof Petrovay, Hungary)
17:10 Mean field and turbulent dynamos in solar-type settings (Reza Tavakol, UK)
Tuesday 4 August

09:00 – 10:00 S263 Plenary Review

III. Magnetic activity and dynamo mechanisms
11:00 Evolution of the solar magnetic fields and polarity reversals (Hongqi Zhang, China)
11:25 Solar dynamo and cycles (Sacha Brun, France)
11:50 Poster presentations. I


Wednesday 5 August

09:00 – 10:00 S264 Plenary Review

IV. Magnetic activity and dynamo mechanisms (cont’d)
11:00 Stellar magnetic dynamo during the evolution across the main sequence (Swetlana Hubrig, Germany)
11:25 Realistic MHD numerical simulations (Aake Nordlund, Denmark)
11:50 Probability distribution functions for solar and stellar magnetic fields (Jan Olof Stenflo, Switzerland)
12:05 Prediction of solar activity cycles by assimilating sunspot data into a dynamo model (Irina Kitiashvili, USA)
12:20 Stellar nonlinear dynamos: observations and modeling (Marjaana Kaarina Lindborg, Finland)
12:35 lunch


V. Physical mechanisms of solar and stellar variability
14:30 Mechanisms of the total and spectral irradiance changes (Margit Haberreiter, USA)
14:55 Poster presentations II.
15:30 coffee break
16:00 Large-scale patterns and ‘active longitudes’ (Vladimir Nukhimovich Obridko, Russia)
16:25 Is there more global solar activity on the Sun? (Jingxiu Wang , China)
16:40 Magnetic energy release, flares and CME (Cristina Mandrini, Argentina)
17:05 Stellar activity and rotation from CoRoT light curves and spectral data (Izan de Castro Leão, Brazil)


Thursday 6 August

VI. Effects on space weather and climate
09:00 New findings increasing solar trend that can change earth climate (Jean-Pierre Rozelot, France)
09:25 Thermosphere temperature and density variations (Hitoshi Fujiwara, Japan)
09:50 Are there variations in the Earth's global mean temperature related to the solar activity cycle?
(Sven Wedemeyer-Böhm, Norway)
10:05 Solar wind structures and radiation belt during solar cycle 23 (Ryuho Kataoka, Japan)
10:20 Extension of magnetic clouds in the inner heliosphere as observed by Helios mission (Aline de Lucas, Brazil)
10:35 coffee break
11:00 CME link to geomagnetic storms (Nat Gopalswamy, USA)
11:25 Nanoflare heating of the corona (James Klimchuk, USA)
11:40 Lower and middle atmosphere and ozone layer responses to solar variation (Ana Georgina Elias, Argentina)
12:05 Possible traces of solar activity effect on the surface air temperature of mid-latitudes (Atila Ozguc, Turkey)
12:20 Influence of the solar radiation on Earth's Climate using the LMDzT-REPROBUS model
(Sandrine Lefebvre, France)
12:35 lunch


VII. Effects of magnetic activity on planet formation and evolution
14:30 Magnetic activity, high-energy radiation and variability: from young solar analogs to low-mass objects (Manuel Guedel, Switzerland)
14:55 Stellar activity and magnetic shielding (Jean-Mathias Grießmeier, The Netherlands)
15:20 Detailed characterization of stellar high energy (FUV/EUV/X-ray) radiation fields during protoplanetary system formation (Alexander Brown, USA)
15:35 coffee break


VIII. Impact of solar and stellar variability on planetary atmospheres and climate
16:00 The Young Magnetic Sun and the Influence of its Strong XUV Emissions on Planets and Life (Edward F. Guinan, United States)
16:25 Formation and evolution of planetary atmospheres (Cesar Bertucci, Argentina)
16:50 Biological damage due to photospheric, chromospheric and flare radiation in the environments of F, G, K, and M-type Main-sequence stars (Manfred Cuntz, USA)
17:05 Kappa Ceti: an analogue of the Sun when life arose on Earth (Gustavo Frederico Porto de Mello, Brazil)


Friday 7 August

IX. Impact of solar and stellar variability on planetary atmospheres and climate (cont’d)
09:00 Influence of the Schwabe/Hale solar cycles on climate change (Hiroko Miyahara, Japan)
09:25 UV radiation and planetary biological evolution (Rocco Mancinelli, USA)


X. Current and future space missions and ground-based observing programs
09:50 CoRoT and stellar activity (Annie Baglin, France)
10:15 Stellar rotation and activity with Kepler (Lucianne Walkowicz, USA)
10:30 coffee break
11:00 Solar missions (Jean-Claude Vial, France)
11:25 The solar spectrograph development of calibration techniques of the solar flux (Hugo Trigoso, Peru)
11:40 Lunar exploration of solar and stellar variability (Louise Riofrio, USA)
11:55 The development of the heliometer of the Observatório Nacional (Victor Amorin D'Avila, Brazil)
12:10 The Indian National Large Solar Telescope NLST (Siraj Hasan, India)
12:25 lunch


X. Summary, open discussion, and closing remarks
14:00 On solar and stellar variability and its impact on related planets (Sylvaine Turck-Chieze, France)
14:30 Open discussion
15:30 Closure




POSTERS




1. Jun Zhang, Leping Li, The calm Sun relexing the global warming trend

2. Xiulan Yang, Leping Li, Jun Zhang, Jingxiu Wang, Perspectives of magnetic reconnection from the observations of the Solar Optical Telescope on Hinode

3. Leping Li, Jun Zhang, On the brightening propagation of post-flare loops observed by TRACE

4. Shuhong Yang, Jun Zhang, Chunlan Jin, Leping Li, Hongyu Duan, Response of the solar atmosphere to magnetic field evolution in a coronal hole region

The mechanism of the light variability of chemically peculiar stars

6. Rubens Freire Ferrero, Alexis Klutsch, The solar cycle as a system depending on its past evolution

7. Liheng Yang, Jiang Yunchun, Yang Jiayan, The observation of the formation of an equatorial coronal hole

8. Xizhen Zhang, Study on IPS observation at the NAOC

9. Marian Doru Suran, Dumitru Pricopi, Solar like stars seismology

10. Sheng-hong Gu, Andrew Collier Cameron, Kang Min Kim, Doppler imaging of the active star PW And

11. Guillermo Giménez de Castro, Caius Lucius Selhorst, Joaquim Eduardo Rezende Costa, Antonio Carlos Saraiva, The solar radius and limb brightening variability in the EUV

12. Oleg Kochukhov, Nikolai Piskunov, Ilya Ilyin, Ilkka Tuominen, Self-consistent magnetic Doppler imaging of active stars

13. Batmunkh Damdin, Multifractal spectrum of solar active regions in the H spectral line

14. Yuan Ma, Min Wang, Liheng Yang, Analysis of the event of 2004 November, 10

15. Yu Liu, Jiangtao Su, Liheng Yang, Influence of asymmetric coronal background fields on solar eruptions

16. Yu Liu, Haosheng Lin, Jeff Kuhn, Liheng Yang, Coronal magnetic fields from the inversion of linear polarization measurements

17. Yu Liu, Jiangtao Su, Yuandeng Shen, Liheng Yang, Observation of interactions between two erupting filaments

18. Ren-Yu Hu, Yulia V. Bogdanova, Christopher J. Owen, Claire Foullon, Andrew N. Fazakerley, Henri Reme, Cluster observations of the mid-altitude cusp under strong northward interplanetary magnetic field

19. Zhong Quan Qu, Xiao Li Yan, Xiao Yu Zhang, Shu Hua Zhong, Zhi Ke Xue, Guang Tao Dun, Lin Ma, New results from linear polarization observations of total solar eclipses

20. Baolin Tan, Fast quasi-periodic pulsating structures in solar microwave bursts

21. Philippe Alain Gondoin, Differential rotation on active late-type stars observed with Corot

22. Caius Lucius Selhorst, Adriana Silva-Válio, Priscila A Martins, Daiane B Seriacopi, Pierre Kaufmann, Hugo Levato, The influence of spicules in the solar radius at multiple radio wavelengths

23. Adriana Silva Valio, The influence of starspot activity on the determination of planetary transit parameters

24. Xiaoli Yan, Zhongquan Qu, Observation on rotating sunspots

25. Weiqun Gan, Youping Li, The periodic variation of 6.8 days for total solar radiation

26. Yavor Chapanov, Daniel Gambis, Solar-terrestrial energy transfer during sunspot cycles and mechanism of Earth rotation excitation

27. Yavor Chapanov, Jan Vondrák, Cyril Ron Common 22-year cycles of Earth rotation and solar activity

28. Haisheng Ji, The contraction of solar flaring loops

29. Nadine Afram, Yvonne C. Unruh, Sami K. Solanki, Manfred Schuessler, A comparison of measured and simulated solar network contrast

30. Michal Krizek, Manifestations of the dark energy in dynamics of the Solar system

31. Jaan Pelt, Solar active longitudes: nonparametric statistical analysis

33. Andrey G. Tlatov, Valeria V. Vasil'eva, The non-radial propagation of coronal streamers within a solar cycle

34. Andrey G. Tlatov, Influence of the variable magnetic field of the Sun on formation of the protoplanet disc

35. P.K. Manoharan, Solar cycle 23: three-dimensional evolution of large-scale solar wind structures

36. Nikolay N. Samus, Elena V. Kazarovets, Olga V. Durlevich, Catalogs of variable stars, current and future

37. Zongjun Ning, Neupert effect and chromospheric evaporation in a solar flare

38. Giulio Del Zanna, Vincenzo Andretta, The EUV spectral irradiance of the Sun from 1997 to date

39. Tardelli Ronan Coelho Stekel, Ezequiel Echer, Nelson Jorge Schuch, Cassio Espindola Antunes, Juliano Moro, Josemar de Siqueira, Carlos Roberto Braga, Nikolas Kemmerich, Guilherme Simon da Rosa, Study of solar flare electromagnetic radiation effects on the ionosphere of Southern Brazil using data of riometer and magnetometer

40. Yunchun Jiang, Liheng Yang, Jiayan Yang, Chirality of eruptive neutral line indicated by bipolar double dimmings

41. Jiayan Yang, Yunchun Jiang, Liheng Yang, A partial halo cme from euv filament channel

42. Wenbin Song, Xueshang Feng, Variabilities of extended bipolar regions

43. Sergey Nikolaevich Samsonov, Nikolay Georgievich Skryabin, Manifestation of the Jupiter synodic period in the solar wind, interplanetary magnetic field and geophysical parameters

44. Christoffer Karoff, Sounding stellar cycles with Kepler

45. Georgeta Maris, Ovidiu Maris, Venera Dobrica, Crisan Demetrescu, Rapid solar wind and geomagnetic variability during the ascending phases of the 11-yr solar cycles

46. Kwing L. Chan, Prediction of "negative" surface differential rotation in stars having high Rossby numbers

47. Ahmed Zegrar, Analysis of zone of vulnirability and impact of forest fires in forest ecosystem in North Algeria by using ALSAT-1 data

48. Yihua Yan, Zhijun Chen, Wei Wang, Fei Liu, Jian Zhang, The solar radio observations in dm-cm wavebands --- On the Chinese Spectral Radioheliograph (CSRH)

49. Martin Vanko, Theodor Pribulla, Petra Odert, Martin Leitzinger, Arnold Hanslmeier, Alexander Konovalenko, Maxim Khodacheko, Helmut Lammer, Helmut Rucker, Implications of activity of late-type stars for terrestrial planet finding missions

50. Isabelle Boisse, François Bouchy, Guillaume Hébrard, Stellar limitation in the search and characterization of exoplanets

51. Elena A. Gavryuseva, Variability of the neutrino counting rate, diameter and magnetic field of the Sun

52. Elena A. Gavryuseva, The origin and the models of the solar magnetic field structure

53. Elena A. Gavryuseva, Variability of perturbations in helio- and magneto-sphere ruled by solar magnetic field structure.

54. James Silvester, Gregg Wade, Oleg Kochukhov, David A Hanes The variability of main sequence A and B type stars

55. Ronald George Samec, Gregory Behn, Christa M. Labadorf, Reid Melton, Nathan C. Hawkins, Heather A. Chamberlain, Trevor S. Loflin, Walter Van Hamme, Danny R. Faulkner, The asymmetric light curves of the spotted solar type binaries GSC 2764 1417 (And), GSC 3355 0394 (Per), GSC 1283 0053 (Ori) and GSC 2537 0775 (CVn)

56. Marlos Rockenbach da Silva, Alisson Dal Lago, Walter Demetrio Gonzalez, Kazuoki Munakata, Akira Fushishita, Takao Kuwabara, John W. Bieber, Nelson Jorge Schuch, M. L. Duldig, J. E. Humble, Ismail Sabbah, Global muon detector network observing geomagnetic storms precursor since March 2001

57. V. E. Timofeev, D. G. Baishev, L. I. Miroshnichenko, S. N. Samsonov, N. G. Skryabin, Synchronous display of 160-minute pulsations in the ground pressure and magnetic field z-component variations at Moscow, Apatity, Oulu, Yakutsk, Tixie

58. Ximena Celeste Abrevaya, Eduardo Cortón, Pablo Jacobo David Mauas, UV habitability and dM stars: an approach for evaluation of biological survival

59. Alessandra Abe Pacini, Ezequiel Echer, Heitor Evangelista da Silva, Nivaor Rigozo, Response of stable isotopes of hydrogen, D, and oxygen, O18, in ice cores to the solar activity cycles

60. William Bruckman, Elio Ramos, Evidence for climate variations induced by the 11 years solar and cosmic rays cycle

61. Heidi Korhonen, Michael Weber, Markus Wittkowski, Thomas Granzer, Klaus G. Strassmeier, RS CVn binary IM Peg - investigation of stellar cycles and surface flows

62. Parthasarathy Mudumba, Spectrum and light variations of Epsilon Aurigae

63. Yuhua Tang, Guiming Le, Application in prediction of the intensity-time profiles of solar energetic particle events

64. Lucas Ramos Vieira, Ezequiel Echer, Nelson Jorge Schuch, Alisson Dal Lago, José Fernando Thuorst, Marcos Vinícius Dias Silveira, Níkolas Kemmerich, Tardelli Ronan Coelho Stekel, Kazuoki Munakata, Analysis of cosmic ray decreases caused by interplanetary shocks in 2001

65. Siming Liu, Particle acceleration efficiency

66. Hui Li, Evidence for magnetic flux rope emergence

67. Alexander V. Stepanov, Yuri T. Tsap, Yulia G. Kopylova, Stellar flare diagnostics from multi-wavelength observations

68. Rosa Tatiana Niembro-Hernández, José Eduardo Mendoza-Torres, Klaus Wilhelm, Study of the estructures of the explosive events in the UV

69. Fernando Marcelo Lopez, Carlos Francile, Jose Ignacio Castro, Marta Rovira, Measurement of the solar corona polarization in the green line with MICA

70. Marcelo C. Lopez Fuentes, Cristina H. Mandrini, Demoulin Pascal, Study of topological properties of peculiar active regions

71. Jorge Sanz-Forcada, David García-Álvarez, Enrique Solano, Ignasi Ribas, Giuseppina Micela, Andrew Pollock, X-exoplanets: an X-ray and EUV database for exoplanets

72. Eduardo Janot-Pacheco, Claudia de Alencar Santos Lage, Douglas Galante, Amancio Friaça, Ivan Glaucio Paulino Lima, Exoplanets environments to Harbour Extremophile Life

73. Sergio Calderari Boscardin, Eugenio Reis Neto, Jucira Lousada Penna, Andres Reinaldo Rodriguez Papa, Alexandre Humberto Andrei, Victor Amorim D´Avila, Observed Variations of the Solar Photospheric Diameter

74. Pablo Jacobo David Mauas, Andrea Paola Buccino, Eduardo Flamenco, Solar activity influence on the stream flow of South American rivers.

75. Shujuan Wang, Analysis of solar radio spikes in the range 1.0-2.0 GHz

76. Leonardo Andrade Alemida, Francisco José Jablonski, Activity on the Secondary Stars of Cataclysmic Variables

77. Liying Zhu, Shengbang Qian, Fernandez Lajus, Substellar objects as tertiary companions in close binary stars

78. Adriana María Gulisano, Pascal Démoulin, Sergio Dasso, Maria Emilia Ruiz, Eckart Marsch, Twisted flux ropes as expanding structures in the inner heliosphere.

79. Dhruba Banerjee, Ramaprosad Bondyopadhaya, The Solar influence on the South West Monsoon rainfall over East coast of India

80. Pablo Rubén Muñoz, Abraham Chian-Long Chian, Rodrigo Andrés Miranda, Cluster observation of magnetic reconnection and current sheets in the upstream solar wind during the ICME event January 2005

81. Rodrigo Andrés Miranda, Abraham Chian-Long Chian, Pablo Rubén Muñoz, ACE and Ulysses observations of phase synchronization in the heliospheric magnetic field turbulence during the ICME event of January 2005

82. Pabulo Henrique Rampelotto, Nelson Jorge Schuch, Marcelo Barcellos Rosa, Alan Prestes, Damaris Kirsch Pinheiro, The influence of solar activity on pluviometry in mid-latitude and tropical brazilian site: a comparative study

83. Claudia Greco, Searching variable stars in Galactic Open Clusters

84. Abraham C.-L. Chian, Ezequiel Echer, Rodrigo A. Miranda, Pablo R. Muñoz, Bruce T. Tsurutani, Coherent structures and intermittent turbulence in the ICME event of January 2005: From a solar active region to the Earth's magnetosphere

85. Carlos Roberto Braga, Alisson Dal Lago, Nelson Jorge Schuch, Marlos Rockenbach Da Silva, Ezequiel Echer, Marcos Vinicius Dias Silveira, Níkolas Kemmerich, Lucas Ramos Vieira, Kazuoki Munakata, Takao Kuwabara, Chihiro Kato, John W. Bieber, Observation of interplanetary-geomagnetic disturbances by satellite data and by the Global Muon Detector Network (GMDN)

86. Haibin Zhao, Characteristics and Performance of the CCD Photometric System of NEOST

87. Hongao Wu, Fuying Xu, Solar radio fine structures observed by Solar Radio Spectrometer at 4.5-7.5 GHz

88. G. Martinez, A. Costa, M. Rovira, Characterization of intensity and spatial variations along TRACE coronal post-flare loops

89. C. Fernández, G. Martinez, S. Elaskar, A. Costa, R. Marta, Numerical simulation of the internal plasma dynamics of post-flare loops

90. Reinaldo R. Rosa, Mauricio J.A. Bolzan, Francisco C.R. Fernandes, Marian Karlicky, Hanumant S. Sawant, Nonlinear analysis of decimetric solar bursts variability

91. Leonid V. Ksanfomality, Large dark area on Mercury centered at 30N, 295W

92. Vinothini Sangaralingam, Ian R Stevens, Study of stellar variability and exoplanetary transits using STEREO - Heliospheric Imager

93. Luis Leuzzi, Carlos Francile, Maria Luisa Luoni, Marta Graciela Rovira, José Ignacio Castro, New improvements of HASTA for the analysis of chromospheric solar events

94. Yin Zhang, Rotational Motion of Sunspot in AR 10930

95. Francisco C. R. Fernandes, Maurício J. A. Bolzan, Reinaldo R. Rosa, José Roberto Cecatto, Hana Mészarosóvá, Hanumant S. Sawant, Semi-harmonic and intermittent solar dm-spikes observed by the brazilian solar spectroscope

96. Patricia Alejandra Larocca, Virginia Mabel Silbergleit, An overview of solar events and ground responses in the declinining phase of the last solar cycle

97. Claudio Faria, Stephan Stephany, Hanumant S. Sawant, José R. Cecatto, Francisco C.R. Fernandes, Brazilian Decimetric Array (BDA) project: the phase II

98. Alexei A Pevtsov, Valentyna I. Abramenko, Transport of open magnetic flux between solar polar regions

99. Denis Pavel Cabezas, José Kaname Ishitsuka, Hugo Eduardo Trigoso, Automatic detection system for solar h-alpha flares

100. Ganghua Lin, Automatic solar proton flare detection

101. Hong-Suh Yim, Yong-Ik Byun, Hong-Kyu Moon, Young-Jun Choi, Wonyong Han, Sky survey program in Korea with Small Robotic Telescope

102. Edward F. Guinan, Scott G. Engle, Laurence E. DeWarf, The young magnetic Sun and the influence of its strong X-ray and UV emissions on

103. Lurdes Milagros Martinez, Lurdes Milagros Martinez, Creating a database and analysis of sunspots at the Solar Observatory of Ica National University in Peru

104. José R. Cecatto, Paulo C. G. Albuquerque, Ivan O.G. Vila, Alan B. Cassiano, César Strauss, Luís A. Reitano, Francisco C.R. Fernandes, New site of the Brazilian Solar Spectroscope: survey and installation

105. Jose Robles, Charles H. Lineweaver, Daniel Grether, Chris Flynn, Chas Egan, Michael Pracy, Johan Holmberg, Esko Gardner, A comprehensive comparison of the Sun to other stars: searching for self-selection effects

106. J Todd Hoeksema, HMI Science Team HMI, The Helioseismic and Magnetic Imager on SDO

107. Nandan Joshi, Ansgar Reiners, Ulf Seemann, Bertrand Goldman, Rotation-activity relation in early- to mid-M stars

108. Daniel Brito de Freitas, José Renan de Medeiros, Nonextensivity in the photospheric solar magnetic activity during the increasing phase of solar Cycle 23