R. N. Bracewell and T. W. Straker, The Study of Solar Flares by Means of Very Long Radio Waves, Monthly Notices of the Royal Astronomical Society, vol.109, issue.1, pp.28-45, 1949.
DOI : 10.1093/mnras/109.1.28

J. Comarmond, Contribution à l'étude de la basse ionosphère par des mesures de phase et d'amplitude d'ondes électromagnétiques à très basse fréquence, Thèse de Doctorat d' Etat, 1977.

E. Correia, P. Kaufmann, J. Raulin, F. C. Bertoni, and H. R. Gavilán, Analysis of daytime ionosphere behavior between 2004 and 2008 in Antarctica, Journal of Atmospheric and Solar-Terrestrial Physics, vol.73, issue.16, pp.2272-2278, 2004.
DOI : 10.1016/j.jastp.2011.06.008

C. J. Chilton, VLF phase perturbation associated with meteor shower ionization, Journal of Geophysical Research, vol.53, issue.2, pp.379-383, 1961.
DOI : 10.1029/JZ066i002p00379

M. Dominique, The LYRA instrument onboard PROBA2: Description and in-flight performance, 2012.
URL : https://hal.archives-ouvertes.fr/hal-00794273

M. Hayakawa, J. Raulin, Y. Kasahara, F. C. Bertoni, Y. Hobara et al., Ionospheric perturbations in possible association with the 2010 Haiti earthquake, as based on medium-distance subionospheric VLF propagation data, Natural Hazards and Earth System Science, vol.11, issue.2, pp.513-518, 2011.
DOI : 10.5194/nhess-11-513-2011

J. Hochedez, LYRA, a solar UV radiometer on Proba2, LYRA, a solar UV radiometer on PROBA2, pp.303-312, 2006.
DOI : 10.1016/j.asr.2005.10.041

URL : https://hal.archives-ouvertes.fr/hal-00127948

P. Kaufmann, V. L. Kuntz, N. M. Paes-leme, L. R. Piazza, J. W. Vilas et al., Effects of the Large June 1975 Meteoroid Storm on Earth's Ionosphere, Effects of the large June 1975 meteoroid storm on Earth's ionosphere, pp.787-790, 1989.
DOI : 10.1126/science.246.4931.787

G. Kockarts, Aeronomy, a 20th Century emergent science: the role of solar Lyman series, Annales Geophysicae, vol.20, issue.5, pp.585-598, 2002.
DOI : 10.5194/angeo-20-585-2002

URL : https://hal.archives-ouvertes.fr/hal-00316992

M. Kretzschmar, M. Dominique, and I. Dammasch, Sun-as-astar observation of flares in Lyman-a by the PROBA2/LYRA radiometer, Sol. Phys, 2012.

E. Landi, U. Feldman, and K. P. Dere, CHIANTI???An Atomic Database for Emission Lines. V. Comparison with an Isothermal Spectrum Observed with SUMER, The Astrophysical Journal Supplement Series, vol.139, issue.1, pp.281-296, 2002.
DOI : 10.1086/337949

E. Landi, M. Landini, K. P. Dere, P. R. Young, and H. E. Mason, CHIANTI?An atomic database for emission lines. III. Continuum radiation and extension of the ion database, Astron. Astrophys, vol.135, pp.339-346, 1999.

W. W. Mcrae and N. R. Thomson, VLF phase and amplitude: daytime ionospheric parameters, Journal of Atmospheric and Solar-Terrestrial Physics, vol.62, issue.7, pp.609-618, 2000.
DOI : 10.1016/S1364-6826(00)00027-4

W. M. Mcrae and N. R. Thomson, Solar flare induced ionospheric D-region enhancements from VLF phase and amplitude observations, Journal of Atmospheric and Solar-Terrestrial Physics, vol.66, issue.1, pp.77-87, 2004.
DOI : 10.1016/j.jastp.2003.09.009

R. Mewe, E. H. Gronenschild, and G. H. , Calculated X-radiation from optically thin plasma, J. van den Oord Astron. Astrophys, vol.62, pp.197-254, 1985.

Y. Muraoka, H. Murata, and T. Sato, The quantitative relationship between VLF phase deviations and 1???8 ?? solar X-ray fluxes during solar flares, Journal of Atmospheric and Terrestrial Physics, vol.39, issue.7, pp.787-792, 1977.
DOI : 10.1016/0021-9169(77)90140-4

M. Nicolet and A. C. Aikin, region of the ionosphere, Journal of Geophysical Research, vol.5, issue.19, pp.1469-1483, 1960.
DOI : 10.1029/JZ065i005p01469

A. A. Pacini, Dependência das propriedades da região-D ionosférica com o ciclo de atividade solar, 2006.

A. A. Pacini and J. Raulin, Solar X-ray flares and ionospheric sudden phase anomalies relationship: A solar cycle phase dependence, Journal of Geophysical Research, vol.105, issue.B7, pp.10-1029, 2006.
DOI : 10.1029/2006JA011613

J. Raulin, A. A. Pacini, P. Kaufmann, E. Correia, and M. A. Martinez, On the detectability of solar X-ray flares using very low frequency sudden phase anomalies, Journal of Atmospheric and Solar-Terrestrial Physics, vol.68, issue.9, pp.1029-1035, 2006.
DOI : 10.1016/j.jastp.2005.11.004

J. Raulin, P. David, R. Hadano, A. C. Saraiva, E. Correia et al., The South America VLF NETwork (SAVNET), The South America VLF NETwork (SAVNET), pp.247-261, 2009.
DOI : 10.1007/s11038-008-9269-4

J. Raulin, Solar flare detection sensitivity using the South America VLF Network (SAVNET), Journal of Geophysical Research: Space Physics, vol.69, issue.A12, pp.10-1029, 2010.
DOI : 10.1016/j.jastp.2007.01.012

J. Raulin, F. C. Bertoni, P. Kaufmann, H. R. Gavilán, E. Correia et al., Solar???terrestrial, ionospheric and natural phenomena studies using the South America VLF network (SAVNET), Solar-Terrestrial, ionospheric and natural phenomena studies using the South America VLF Network (SAVNET), pp.1581-1586, 2011.
DOI : 10.1016/j.jastp.2010.11.029

G. J. Rottman, T. N. Woods, and W. Mcclintock, SORCE solar UV irradiance results, Advances in Space Research, vol.37, issue.2, pp.201-208, 2006.
DOI : 10.1016/j.asr.2005.02.072

G. Sátori, E. Williams, and V. Mushtak, Response of the Earth???ionosphere cavity resonator to the 11-year solar cycle in X-radiation, Journal of Atmospheric and Solar-Terrestrial Physics, vol.67, issue.6, pp.553-562, 2005.
DOI : 10.1016/j.jastp.2004.12.006

Y. T. Tanaka, J. Raulin, F. C. Bertoni, P. R. Fagundes, J. Chau et al., FIRST VERY LOW FREQUENCY DETECTION OF SHORT REPEATED BURSTS FROM MAGNETAR SGR J1550???5418, First very low frequency detection of short repeated bursts from Magnetar SGR J1550- 5418, pp.24-27, 2010.
DOI : 10.1088/2041-8205/721/1/L24

N. R. Thomson, C. J. Rodger, and M. A. Clilverd, region enhancements, Journal of Geophysical Research, vol.95, issue.D10, pp.6306-06316, 2005.
DOI : 10.1029/2005JA011008

W. K. Tobiska, T. Woods, F. Eparvier, R. Viereck, L. Floyd et al., The SOLAR2000 empirical solar irradiance model and forecast tool, Journal of Atmospheric and Solar-Terrestrial Physics, vol.62, issue.14, pp.62-1233, 2000.
DOI : 10.1016/S1364-6826(00)00070-5

J. R. Wait, Diurnal change of ionospheric heights deduced from phase velocity measurements at VLF, Proc. IRE, pp.47-998, 1959.

J. R. Wait and K. Spies, Characteristics of the Earth-ionosphere waveguide for VLF radio waves, NBS Technical NoteU.S, vol.300, 1964.
DOI : 10.6028/NBS.TN.300

A. D. Watt, Radio Engineering, International Series of Monograph in Electromagnetic Waves, 1967.

T. N. Woods, W. K. Tobiska, G. J. Rottman, and J. R. Worden, Improved solar Lyman ?? irradiance modeling from 1947 through 1999 based on UARS observations, Journal of Geophysical Research: Space Physics, vol.25, issue.A12, pp.27195-27215, 2000.
DOI : 10.1029/2000JA000051

T. N. Woods, F. G. Eparvier, S. M. Bailey, P. C. Chamberlin, J. Lean et al., Solar EUV Experiment (SEE): Mission overview and first results, Journal of Geophysical Research, vol.511, issue.1, p.131210, 1029.
DOI : 10.1029/2004JA010765