Publications

 

1. “The Role of Magnetic Buoyancy in a Babcock-Leighton type Solar Dynamo”, Nandy, D., & Choudhuri, A.R.  2000, Journal of Astrophysics and Astronomy, Volume 21, Page 381

 

2. “Towards a Mean-Field Formulation of the Babcock-Leighton type Solar Dynamo. I. Alpha-Coefficient Versus Durney's Double Ring Approach”, Nandy, D., & Choudhuri, A.R.  2001, Astrophysical Journal, Volume 551, Page 576

 

3. “Constraints on the Solar Internal Magnetic Field from a Buoyancy Driven Solar Dynamo”, Nandy, D. 2002, Astrophysics & Space Science, Volume 282, Page 209

 

4. “Explaining the Latitudinal Distribution of Sunspots with a Deep Meridional Flow”, Nandy, D., & Choudhuri A.R. 2002, Science, Volume 296, Page 1671 (See also “Online Supplemental Information” and “Unsuspected depths” – A small news-brief about this work, from the pages of Science Magazine)

 

5. “Solar Dynamo Models with Realistic Internal Rotation”, Choudhuri, A.R., & Nandy, D. 2002, Proceedings of the SOLMAG 2002 Meeting on “Magnetic Coupling of the Solar Atmosphere Euroconference and IAU Colloquium 188”, ESA Publications Division, ESA SP-505 (October 2002),  Page 91

 

6. “Insights on Turbulent Flows in the Solar Interior from the Behaviour of Dynamo Generated Magnetic Fields”, Nandy, D., & Choudhuri, A.R. 2003, Proceedings of the NATO Advanced Research Workshop on “Turbulence, Waves, and Instabilities in the Solar Plasma”, Publication of the Astronomy Department of the Eotvos University (Budapest), 2003, Page 21

 

7. “Evidence That a Deep Meridional Flow Sets the Sunspot Cycle Period”, Hathaway D.H., Nandy, D., Wilson, R.M., & Reichmann, E.J.  2003, Astrophysical Journal, Volume 589, Page 665 (See also “Erratum”, 2004, Astrophysical Journal, Volume 602, Page 543)

 

8. “Reviewing Solar Magnetic Field Generation in the Light of Helioseismology”, Nandy, D. 2003, Proceedings of the SOHO 12 / GONG+ 2002 Meeting on "Local and Global Helioseismology: The Present and Future", European Space Agency Publications Division, Editor: H. Sawaya-Lacoste, ESA SP-517 (February 2003), Page 123

 

9. “Detection of a Taylor-like Plasma Relaxation Process in the Sun”, Nandy, D., Hahn, M., Canfield, R.C., & Longcope, D.W.  2003, Astrophysical Journal Letters, Volume 597, Page L73

 

10. “Helicity of Solar Active Regions from a Dynamo Model”, Choudhuri, A.R., Chatterjee, P., & Nandy, D. 2004, Astrophysical Journal Letters, Volume 615, Page L57 

 

11. “Full-Sphere Simulations of a Circulation–Dominated Solar Dynamo: Exploring the Parity Issue, Chatterjee, P., Nandy, D., & Choudhuri, A.R.  2004, Astronomy & Astrophysics, Volume 427, Page 1019 (see also “Response to the Comments of Dikpati et al.”)

 

12. “The Origin of Helicity in Solar Active Regions”, Choudhuri, A.R., Chatterjee, P., & Nandy, D. 2004, Proceedings of IAU Symposium 223 on “Multi-Wavelength Investigations of Solar Activity”, Editors: A.V. Stepanov, E.E. Benevolenskaya and A.G. Kosovichev, Cambridge University Press, Page 45

 

13. “Full Sphere Axisymmetric Simulations of the Solar Dynamo”, Nandy, D., Chatterjee, P., & Choudhuri, A.R. 2004, Proceedings of IAU Symposium 223 on “Multi-Wavelength Investigations of Solar Activity”, Editors: A.V. Stepanov, E.E. Benevolenskaya and A.G. Kosovichev, Cambridge University Press, Page 133

 

14. “Detection of Taylor-like Plasma Relaxation Process in the Sun and its Implication for Coronal Heating”, Nandy, D., Hahn, M., Canfield, R.C., & Longcope, D.W.  2004, Proceedings of IAU Symposium 223 on “Multi-Wavelength Investigations of Solar Activity”, Editors: A.V. Stepanov, E.E. Benevolenskaya and A.G. Kosovichev, Cambridge University Press, Page 473

 

15. “On the Tilt and Twist of Solar Active Regions”, Holder, Z.A., Canfield, R.C., McMullen, R.A., Nandy, D., Howard, R.F., & Pevtsov, A.A. 2004, Astrophysical Journal, Volume 611, Page 1149

 

16. “Meridional Circulation and the Solar Magnetic Cycle”, Nandy, D. 2004, Invited Review, Proceedings of the SOHO 14 / GONG 2004 Meeting on “Helio- and Asteroseismology: Towards a Golden Future”, European Space Agency Publications Division, Editor: D. Danesy, ESA SP-559 (October, 2004), Page 241

 

17. “Exploring Magnetic Activity from the Sun to the Stars”, Nandy, D. 2004, Solar Physics, Volume 224, Page 161

 

18. “Spatial Relationship Between Twist in Active Region Magnetic Fields and Solar Flares”, Hahn, M., Gaard, S., Jibben, P., Canfield, R.C., & Nandy, D. 2005, Astrophysical Journal, Volume 629, Page 1135

 

19.  Low-order Stellar Dynamo Models”, Wilmot-Smith, A.L., Martens, P.C.H., Nandy, D., Priest, E.R., & Tobias, S.M. 2005, Monthly Notices of the Royal Astronomical Society, Volume 363, Page 1167

 

20.  Unraveling Long-Term Solar Variability and its Impact on Space Climate: The Stars as Suns Project”, Nandy, D., & Martens, P.C.H.  2006, Invited Review, Proceedings of the International Living With a Star Workshop (Goa, India), Editors: N. Gopalswamy and A. Bhattacharyya, ISBN: 81-87099-40-2, Page158

 

21.   A Time Delay Model for Solar and Stellar Dynamos, Wilmot-Smith, A.L., Nandy, D., Hornig, G., & Martens, P.C.H. 2006, Astrophysical Journal, Volume 652, Page 696

 

22.  Magnetic Helicity and Flux Tube Dynamics in the Solar Convection Zone: Comparisons between Observation and Theory, Nandy, D. 2006, Journal of Geophysical Research, Volume 111, Page A12S01 (doi:10.1029/2006JA011882)

 

23.  Space Climate and the Solar-Stellar Connection: What can we learn from the Stars about Long-Term Solar Variability, Nandy, D., & Martens, P.C.H.  2007, Invited Review, Advances in Space Research,  Volume 40, Page 891

 

24.  Kinematic Properties of Solar Coronal Mass Ejections: Correction for Projection Effects in Spacecraft Coronagraph Measurements, Howard, T.A., Nandy, D., & Koepke, A. 2008, Journal of Geophysical Research, Volume 113, Page A01104 (10.1029/2007JA012500)

 

25.  Exploring the Physical Basis of Solar Cycle Predictions: Flux Transport Dynamics and Persistence of Memory in Advection versus Diffusion Dominated Solar Convection Zones, Yeates, A.R., Nandy, D., & Mackay, D.H. 2008, Astrophysical Journal, Volume 673, Page 544

 

26.  Twisted Solar Active Region Magnetic Fields as Drivers of Space Weather: Observational and Theoretical Investigations, Nandy, D., Mackay, D.H., Canfield, R.C., & Martens, P.C.H. 2008, Proceedings of the ISROSES Symposium, Journal of Atmospheric and Solar-Terrestrial Physics, in press

 

27.  Magnetic Helicity, Coronal Heating and Solar Flaring Activity: A Review of the Role of Active Region Twist, Nandy, D. 2008, Invited Review, Proceedings of the National Solar Observatory Sac Peak Workshop 24, Astronomical Society of the Pacific Conference Series, in press

 

28.  A Flux Tube Fitting Technique for Determining Solar Active Region Twist without Recourse to the Force-Free-Field Equation: Quantifying the Critical Twist Threshold for Kink Instability, Nandy, D., Calhoun, A., Windschitl, J., & Linton, M.G. 2008, Astrophysical Journal Letters, submitted