Publications of András Ludmány

  1. LUDMÁNY,A. 1977, The birth and initial stage of the large sunspot group of August 1972. Publ. Debrecen Obs. 3, 83-91. (In Russian)

  2. NAGY,I., LUDMÁNY,A. 1980, The birth and development of a regular bipolar sunspot group. Publ. Debrecen Obs. 4, 3-31.

  3. BARANYI,T., LUDMÁNY,A. 1983, Synthesis of H-alpha profiles from filter transmission functions Publ. Debrecen Obs5, 595-602.

  4. LUDMÁNY,A. 1983, Asymmetry of non-splitting spectral lines in sunspots Publ. Debrecen Obs.5, 575-579.

  5. LUDMÁNY,A. 1986, Study of spectral line asymmetry in sunspots. Publ. Debrecen Obs. 6, 5-10.

  6. LUDMÁNY,A. 1986, Two-component modelling of sunspot spectral line profiles. Publ. Debrecen Obs.6, 11-23.

  7. BARANYI,T., LUDMÁNY,A. 1990, Orientations of new sunspot groups. Publ. Debrecen Obs. 7, 114-115.

  8. BARANYI,T., LUDMÁNY, A. 1992, Study of possible subsurface influences on the emerging active regions Solar. Phys. 139, 247-254.

  9. BARANYI,T., LUDMÁNY,A. 1992, Semiannual fluctuation and efficiency factors in sun-weather relations J. Geophys. Res. 97, No.A10, 14923-14928.

  10. BARANYI,T., LUDMÁNY, A. 1993, Detection possibility of the giant rolls in the Sun ASP Conference Series 40, 81-83.

  11. BARANYI,T., LUDMÁNY,A. 1994, Distinction between the climatic effects of the solar corpuscular and electromagnetic radiation, Solar Phys. 152, 297-302.

  12. BARANYI,T., LUDMÁNY,A. 1995, Role of the solar main magnetic dipole field in the solar-tropospheric relations. Part I. Semiannual fluctuations in Europe, Annales Geophysicae13, 427-436.

  13. BARANYI,T., LUDMÁNY,A. 1995, Role of the solar main magnetic dipole field in the solar-tropospheric relations. Part II. Dependence on the types of solar sources, Annales Geophysicae 13, 886-892.

  14. BARANYI,T., LUDMÁNY,A. 1995, Giant convective rolls and sunspot group tilts Publ. Obs. Astron. Belgrade 49, 81-88.

  15. BARANYI,T., LUDMÁNY,A., Terdik,Gy. 1995, Semiannual fluctuation depending on the polarity of the solar main magnetic dipole field Journal of Geophysical Research 100, No. A8, 14801-14805.

  16. GYŐRI,L., BARANYI,T., CSEPURA,G., GERLEI,O. LUDMÁNY,A. 1996, Debrecen Photoheliographic Data for the year 1986; Publ. Debrecen Obs. Heliogr. Ser. 10. 1-61.

  17. BARANYI,T., LUDMÁNY,A. 1996, Some particle effects in the solar-terrestrial relations. in: Solar Drivers of Interplanetary and Terrestrial Disturbances (Proc. of XVIth Int.Workshop, NSO/Sac.Peak) eds.K.S. Balasubramaniam, S.L.Keil and R.N.Smartt,ASP Conference Series 95, 489-496.

  18. BARANYI,T., LUDMÁNY,A. 1997, Some polarity conditions in corpuscular events. Solar Phys173, 383-389.

  19. GYÕRI,L., BARANYI,T., CSEPURA,G., GERLEI,O., LUDMÁNY,A. 1998, Debrecen Photoheliographic Data for the year 1987 Publ. Debrecen Obs. Heliogr. Ser. 11, 1-45.

  20. GYŐRI,L., BARANYI,T., CSEPURA,G., GERLEI,O., LUDMÁNY,A. 1998,  Debrecen Photoheliographic Data for 1986; with image supplements  Journal of Astronomical Data  4, 2 (ftp: fenyi.solarobs.unideb.hu/pub/DPD/DPD1986.dat)

  21. BARANYI,T., LUDMÁNY,A., Coffey,H. 1998, 22 year solar modulation of Earth's northern hemisphere temperatures, Geophys. Res. Lett. 25, 2269-2272.

  22. LUDMÁNY,A., BARANYI,T. 1998, An indirect hint to the torsion of magnetic fields above active regions JOSO Annual Report 1997, 88-89.

  23. LUDMÁNY,A., BARANYI,T., MEZŐ,G., 1999, Study of the fragmentation of solar active regions JOSO Annual Report 1998, .

  24. BARANYI,T., LUDMÁNY,A., GYŐRI,L., Coffey,H.E., 1999 Comparison of three sunspot area databases Accepted to ESA-SP 448, (9th European Meeting on Solar Physics, Florence, Italy, 1999) 569-573

  25. LUDMÁNY,A., BARANYI,T., MEZŐ,G., TÓTH,L., 1999 Clusters in solar active regions Accepted to ESA-SP 448, (9th European Meeting on Solar Physics, Florence, Italy, 1999) 613-615

  26. Lozitsky,V.G., Lozitska,N.I., Lozitsky,V.,V., BARANYI,T., LUDMÁNY,A., MEZŐ,G., 1999, Evolution of magnetic fields and chromospheric structures in solar flare on June 26, 1981 Accepted to ESA-SP 448, (9th European Meeting on Solar Physics, Florence, Italy, 1999) 853-858

  27. GYŐRI,L., BARANYI,T., CSEPURA,G., GERLEI,O., LUDMÁNY,A. 2000, Debrecen Photoheliographic Data for 1987; with image supplements Journal of Astronomical Data 6, 1

  28. BARANYI,T., LUDMÁNY,A. 2000, Efficiency factors in the solar-tropospheric relations in: W. Schröder ed.: Long and Short  Term Variability in Sun's History and Global Change,  Interdivisional Commission on History of the IAGA, European  Section.  Newsletters of the Interd. Comm. History,  No. 39,Science Edition, Bremen, 69-79. pdf

  29. BARANYI,T., GYŐRI,L., LUDMÁNY,A., Coffey,H.E., 2001,  Comparison of sunspot area databases Monthly Notices of R.A.S. 323(1) 223-230. pdf

  30. LUDMÁNY,A., BARANYI,T. 2000, Comparative study of the atmospheric effects driven by irradiance vs. corpuscular radiation", ESA SP-463 (Proc.  Euroconference: The Solar Cycle and Terrestrial Climate, Santa Cruz de Tenerife, Spain, September 25-30, 2000), pp. 141-144.pdf

  31. GYŐRI, L., BARANYI, T., LUDMÁNY, A., GERLEI, O., CSEPURA, G.: 2001, Debrecen Photoheliographic Data for 1988, Publ. Debrecen Obs. Heliogr. Series, 12, pp. 1-60 pdf

  32. BARANYI T., LUDMÁNY,A.: 2001 Relevance of the topologies of solar ejected plasmas in tropospheric processes ESA SP-477, pp.  423-426.

  33. BARANYI,T., LUDMÁNY,A., 2002, Effects of solar polarity  reversals on geoeffective plasma streams, submitted to Journal of Geophysical Research - Space Physics

  34. MURAKÖZY, J., Vince, I., LUDMÁNY, A.: 2003, Instrumental profile of the Debrecen Solar Spectrograph, Serb. Astron. J.167, 81 - 85, pdf

  35. BARANYI, T., LUDMÁNY, A.: 2003Effects of solar polarity reversals on geoeffective plasma streams, J. Geophys. Res., 108, No. A51212, doi:10.1029/2002JA009553,  pdf preprint

  36. GYŐRI, L., BARANYI, T., LUDMÁNY,A.,  MEZŐ, G.: 2003, Current status of the Debrecen Photoheliographic Data, ESA SP-535 (Proc. ISCS 2003: Solar variability as an input to the Earth's environment, June 23-28, 2003, Tatranska Lomnica, Slovak Republic), 707-710, pdf

  37. BARANYI, T., LUDMÁNY,A.: 2003, Semiannual behaviour of monthly mean of Bz component of geoeffective (Kp>3) coronal mass ejections ,  ESA SP-535 (Proc. ISCS 2003: Solar variability as an input to the Earth's environment, June 23-28, 2003, Tatranska Lomnica, Slovak Republic), 563-566, pdf

  38. Szasz,C., Kero, J., BARANYI, T., GYŐRI, L., LUDMÁNY,A., MEZŐ, G.: 2003, An active region quasi-biennial oscillation,  ESA SP-535 (Proc. ISCS 2003: Solar variability as an input to the Earth's environment, June 23-28, 2003, Tatranska Lomnica, Slovak Republic), 153-155, pdf

  39. GYŐRI, L., BARANYI, T., LUDMÁNY, A., GERLEI, O., CSEPURA, G., MEZŐ, G.: 2004, Debrecen Photoheliographic Data for 1993-95, Publ. Debrecen Obs. Heliogr. Series17-19, 1-85, ftp

  40. MEZŐ, G., BARANYI, T., MURAKÖZY, J., GYŐRI, L.: 2004, Statistical study of the East-West asymmetry of sunspots, in:
    Proc. IAU Symposium No.223 "Multi-Wavelength Investigations of Solar Activity", eds: A. V. Stepanov,  E. E. Benevolenskaya, and A. G. Kosovichev, Cambridge, UK: Cambridge University Press, 285-286, pdf

  41. BARANYI, T., LUDMÁNY, A.: 2005, Symmetric or asymmetric energy transfer from Interplanetary Coronal Mass Ejections
    to the magnetosphere depending on the solar dipole,
     Adv. Space Res.35,  421-425, pdf

  42. MURAKÖZY, J., MEZŐ, G., LUDMÁNY, A., GYŐRI, L.: 2005, Search for possible connections of sunspot features and torsional waves, Hvar Obs. Bull.29, 31-37, pdf

  43. BARANYI, T., LUDMÁNY, A.: 2005, Geoeffective and climate-influencing solar and interplanetary conditions,  Hvar Obs. Bull.29, 251-260, pdf

  44. Vince, I., Vince, O., LUDMÁNY, A., Andriyenko, O.: 2005, The Mn I 539.47 nm line variation in solar active regions, Solar Physics229, 273-285, pdf

  45. GYŐRI, L., BARANYI, T., MURAKÖZY, J., LUDMÁNY, A.: 2005, Recent advances in the Debrecen sunspot catalogues, Mem. S.A.It.76, 981, pdf

  46. GYŐRI, L., BARANYI, T., MURAKÖZY, J., LUDMÁNY, A.: 2005, Comparison of sunspot area data determined from ground-based and space-borne observation, Mem. S.A.It.76, 985, pdf

  47. BARANYI, T., LUDMÁNY, A.: 2006, Possible north–south asymmetry related to the mean Bz of interplanetary coronal mass ejections, Adv. Space Res., 38 (Issue 5), 931, pdf

  48. GYŐRI, L., BARANYI, T.: 2006Comparison of SOHO and Debrecen Photoheliographic Data sunspot areas for the years 1996 and 1997, Proc. SOHO-17: 10 Years of SOHO and Beyond, 7 – 12 May 2006, Giardini Naxos, Sicily (Italy), Edited by H. Lacoste and L. Ouwehand, ESA SP-617, European Space Agency, 2006, Published on CDROM, p.130.1, pdf

  49. MURAKÖZY, J., LUDMÁNY, A.: 2006, Connection of sunspot's distribution with the torsional wave, In: Proceedings of the 4th Workshop of Young Researchers in Astronomy & Astrophysics; Budapest, Hungary, 11-13 January, 2006; Publications of the Astronomy Department of the Eötvös University (PADEU), (Edited by E. Forgács-Dajka),  17, 23, pdf

  50. MURAKÖZY, J., LUDMÁNY, A.: 2008, Cycle dependence of the longitudinal-latitudinal sunspot motion correlations, A&A 486, 1003-1007, DOI: 10.1051/0004-6361:20078456, pdf

  51. MURAKÖZY, J., LUDMÁNY, A.: 2008, Temporal Variations of Coriolis-turns in the Photosphere, Cent. Eur. Astrophys. Bull., 32, 133-139, pdf

  52. MURAKÖZY, J., LUDMÁNY, A.: 2010, North-south differences of solar cycles, Cent. Eur. Astrophys. Bull.34, 99. pdf

  53. MURAKÖZY, J., LUDMÁNY, A.: 2011, Considerations on the Spörer-diagram – Torsional Wave Relationship, Cent. Eur. Astrophys. Bull.35, 45-49. pdf

  54. GYŐRI, L., BARANYI, T., LUDMÁNY, A.: 2011, Photospheric data programs at the Debrecen Observatory, IAU Symp. 273, 403-407., DOI:10.1017/S174392131101564X, pdf preprint

  55. MURAKÖZY, J., LUDMÁNY, A.: 2011, Correlations of magnetic features and the torsional pattern, IAU Symp.273, 394-398., DOI:10.1017/S1743921311015626, pdf preprint

  56. MURAKÖZY, J., LUDMÁNY, A.: 2011, Phase-lags of solar hemispheric cycles,  MNRAS419, 3624-3630., DOI: 10.1111/j.1365-2966.2011.20011.x pdf preprint

  57. MURAKÖZY, J., BARANYI, T., LUDMÁNY, A.: 2012, Development and morphology of leading-following parts of sunspot groups, Cent. Eur. Astrophys. Bull.36, 1-8. pdf

  58. GYENGE, N., BARANYI, T., LUDMÁNY, A.: 2012, Distribution of activity at the solar active longitudes between 1979 - 2011 in the northern hemisphere, Cent. Eur. Astrophys. Bull.36, 9-16. pdf

  59. MURAKÖZY, J., LUDMÁNY, A.: 2012, Phase lags of solar hemispheric cycles, MNRAS, 419, 3624-3630, DOI: 10.1111/j.1365-2966.2011.20011.x, pdf

  60. GYENGE, N., BARANYI, T., LUDMÁNY, A.: 2013, Variations of Solar Non-axisymmetric Activity, Cent. Eur. Astrophys. Bull., 37, 417-424, pdf

  61. KORSÓS, M. B., BARANYI, T., LUDMÁNY, A.: 2013, Study of Sunspot Group Morphological Variations Leading to Flaring Events, Cent. Eur. Astrophys. Bull., 37, 425-434, pdf

  62. MURAKÖZY, J., BARANYI, T., LUDMÁNY, A.: 2014, Sunspot Group Development in High Temporal Resolution, Solar Phys., 289, 563-577, DOI: 10.1007/s11207-013-0416-3 pdf

  63. GYENGE, N., BARANYI, T., LUDMÁNY, A.: 2014, Migration and Extension of Solar Active Longitudinal Zones, Solar Phys., 289, 579-591, DOI: 10.1007/s11207-013-0424-3, pdf

  64. KORSÓS, M. B., BARANYI, T., LUDMÁNY, A.: 2014, Pre-flare Dynamics of Sunspot Groups, ApJ, 789, issue 2, article id. 107, 7 pp, DOI: 10.1088/0004-637X/789/2/107, pdf

  65. KORSÓS, M. B., GYENGE, N., BARANYI, T., LUDMÁNY, A.: 2015, Dynamic Precursors of Flares in Active Region NOAA 10486, JApA, 36, 111-121, DOI: 10.1007/s12036-015-9329-x, pdf

  66. GYENGE, N., LUDMÁNY, A., BARANYI, T.: 2016, Active Longitude and Solar Flare Occurrences, ApJ, 818, Issue 2, article id. 127, 8 pp., pdf

  67. BARANYI, T., GYŐRI, L., LUDMÁNY, A.: 2016, Heritage of Konkoly's Solar Observations: the Debrecen Photoheliograph Programme and the Debrecen Sunspot Databases, arXiv:1608.08419, pdf

  68. MURAKÖZY, J., BARANYI, T., LUDMÁNY, A.: 2016, An Alternative Measure of Solar Activity from Detailed Sunspot Datasets, Solar Phys., 291, 2941-2950, DOI: 10.1007/s11207-016-0898-x pdf

  69. BARANYI, T., GYŐRI, L., LUDMÁNY, A.: 2016, On-line Tools for Solar Data Compiled at the Debrecen Observatory and Their Extensions with the Greenwich Sunspot Data, Solar Phys., 291, Issue 9-10, pp. 3081-3102, DOI: 10.1007/s11207-016-0930-1, pdf

  70. GYŐRI, L., LUDMÁNY, A., BARANYI, T.: 2017, Comparative analysis of Debrecen sunspot catalogues, MNRAS, 465, 1259-1273, DOI: 10.1093/mnras/stw2667, pdf

Updated: 23 November 2022.
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