Results 21 to 30 of about 1,344 (291)

Inverse problems in stellar occultation [PDF]

, 2005
Remote sensing plays a key role in monitoring the atmosphere, which becomes increasingly important for the Earth's changing environment. The stellar occultation technique is a novel method to monitor vertical distribution of ozone and other trace gases ...
Sofieva, Viktoria
core   +1 more source

Terrestrial Atmospheric Composition from Stellar Occultations [PDF]

Science, 1972
Stellar ultraviolet light transmitted through the earth's upper atmosphere is strongly absorbed by ozone and molecular oxygen. The stellar ultraviolet photometers aboard the Orbiting Astronomical Observatory (OAO-2) satellite have measured the intensity changes of several stars during occultation of the star by the earth's atmosphere.
P B, Hays, R G, Roble, A N, Shah
openaire   +2 more sources

Retrieval of ozone profiles from GOMOS limb scattered measurements [PDF]

Atmospheric Measurement Techniques, 2011
The GOMOS (Global Ozone Monitoring by Occultation of Stars) instrument on board the Envisat satellite measures the vertical composition of the atmosphere using the stellar occultation technique. While the night-time occultations of GOMOS have been proven
S. Tukiainen, E. Kyrölä, P. T. Verronen, D. Fussen, L. Blanot, G. Barrot, A. Hauchecorne, N. Lloyd   +7 more
doaj   +1 more source

PLUTO’s ATMOSPHERE FROM STELLAR OCCULTATIONS IN 2012 AND 2013 [PDF]

The Astrophysical Journal, 2015
We analyze two multi-chord stellar occultations by Pluto observed on July 18th, 2012 and May 4th, 2013, and monitored respectively from five and six sites. They provide a total of fifteen light-curves, twelve of them being used for a simultaneous fit that uses a unique temperature profile, assuming a clear (no-haze) and pure N_2 atmosphere, but ...
Dias-Oliveira, A., Sicardy, B., Lellouch, E., Vieira-Martins, R., Assafin, M., Camargo, J., Braga-Ribas, F., Gomes-Júnior, A., Benedetti-Rossi, G., Colas, F., Decock, A., Doressoundiram, A., Dumas, C., Emilio, M., Fabrega Polleri, J., Gil-Hutton, R., Gillon, M., Girard, J., Hau, G., Ivanov, V., Jehin, E., Lecacheux, J., Leiva, R., Lopez-Sisterna, C., Mancini, L., Manfroid, J., Maury, A., Meza, E., Morales, N., Nagy, L., Opitom, C., Ortiz, J., Pollock, J., Roques, F., Snodgrass, C., Soulier, J., Thirouin, A., Vanzi, L., Widemann, T., Reichart, D., Lacluyze, A., Haislip, J., Ivarsen, K., Dominik, M., Jørgensen, U., Skottfelt, J.   +45 more
openaire   +10 more sources

Physical properties of the trans-Neptunian object (38628) Huya from a multi-chord stellar occultation [PDF]

, 2022
Context. As part of our international program aimed at obtaining accurate physical properties of trans-Neptunian objects (TNOs), we predicted a stellar occultation by the TNO (38628) Huya of the star Gaia DR2 4352760586390566400 (mG = 11.5 mag) on March ...
Belskaya, I., Karampotsiou, S., Kiss, Cs., Bamberger, D., Pal, A., Truta, R., Niaei, M.S., Sonka, A., Perelló, C., Selva, A., Benedetti-Rossi, G., Kilic, Y., Stoian, A.-M., Fernández-Valenzuela, E., Pratt, A., Tercu, J.O., Ateş, A., Manulis, I., Ozisik, T., Curelaru, L., Zhukov, V., Camargo, J.I.B., Bakış, H., Krugly, Y., Nir, G., Kayhan, C., Kilic, S.E., Vantdevara, C., Solmaz, A., Sicardy, B., Schnabel, C., Vieira-Martins, R., Anghel, R., Ogłoza, W., Atalay, E., Gazeas, K., Kudak, V., Duffard, R., Yesilyaprak, C., Popescu, M., Kashuba, V., Morgado, B.E., Dumitrescu, V., Nedelcu, D.A., Kalkan, S., Santos-Sanz, P., Petrescu, E., Tsamis, V., Assafin, M., Anghel, S., Bakıs, V., Rommel, F.L., Perig, V., Morales, N., Weber, C., Ofek, E., Özdemir, T., Pereira, C.L., Tekes, M., Szakats, R., Desmars, J., Lecacheux, J., Pakštienė, E., Eker, Z., Żejmo, M., Kaspi, S., Danescu, C., Kozhukhov, O.M., Braga-Ribas, F., Ortiz, J.L., Erece, O., Wells, G., Berteşteanu, D., Tigani, K., Koshkin, N., Unsalan, O., Gherase, R., Dementiev, T.O., Hudin, L., Turcu, V., Teng, J.P., Mondon, B., Vara-Lubiano, M., Marques Oliveira, J., Püsküllü, Ç., Marciniak, A., Acar, M., Satir, O.   +87 more
core   +4 more sources

Analysis of inversion error characteristics of stellar occultation simulation data

Earth and Planetary Physics, 2022
Atmospheric stellar occultation observation technology is an advanced space-based detection technology that can measure the vertical distribution of trace gas composition, temperature, and aerosol content in a planet’s atmosphere.
MingChen Sun, QingLin Zhu, Xiang Dong, JiaJi Wu   +3 more
doaj   +1 more source

Retrieval of atmospheric parameters from GOMOS data [PDF]

Atmospheric Chemistry and Physics, 2010
The Global Ozone Monitoring by Occultation of Stars (GOMOS) instrument on board the European Space Agency's ENVISAT satellite measures attenuation of stellar light in occultation geometry.
E. Kyrölä, J. Tamminen, V. Sofieva, J. L. Bertaux, A. Hauchecorne, F. Dalaudier, D. Fussen, F. Vanhellemont, O. Fanton d'Andon, G. Barrot, M. Guirlet, A. Mangin, L. Blanot, T. Fehr, L. Saavedra de Miguel, R. Fraisse   +15 more
doaj   +1 more source

The 2017 May 20 stellar occultation by the elongated centaur (95626) 2002 GZ32 [PDF]

, 2020
We predicted a stellar occultation of the bright star Gaia DR1 4332852996360346368 (UCAC4 385-75921) (mV = 14.0 mag) by the centaur 2002 GZ32 for 2017 May 20. Our latest shadow path prediction was favourable to a large region in Europe. Observations were
Haymes, T, Pal, A., Selva, A, González, H., Perelló, C., González, H, Guirado, J C, Kiss, C., Sanchez, J., Sonbas, E., Pérez, L, Organero, F., Reyes, J., Ballesteros, F. J., Komžík, R., Camargo, J. I. B., Sicardy, B., Peris, V., Vieira-Martins, R., Sonbas, E, Jiménez-Teja, Y, Pal, Andras, Fonseca, F, Reyes, J. A., Alí-Lagoa, V., Kattentidt, B., Camargo, J., Guirado, J. C., Ciabattari, F., Reyes, J A, Pérez, L., Santos-Sanz, P., Lamadrid, J L, Assafin, M., Fuambuena Leiva, A, Ortiz, J. L., Boutet, M., Bretton, M., Desmars, J., Mottola, S, Jennings, M., Jiménez-Teja, Y., Haymes, T., Ratinaud, C., Braga-Ribas, F., Kiss, Cs, Jennings, M, Camargo, J I B, Signoret, F, Fuambuena Leiva, A., Kattentidt, B, Moindrot, S, Alikakos, J., Selva, A., Benedetti-Rossi, G., Ratinaud, C, Fernández-Valenzuela, E., Delincak, P., Signoret, F., Hellmich, S., Ballesteros, F J, Schnabel, C., Iglesias-Marzoa, R., Paschalis, N., Fuambuena, Leiva A., Gazeas, K., Hellmich, Stephan, Horbowicz, J, Duffard, R., Alvarez-Candal, A., Lamadrid, J. L., Pribulla, T., Sanchez, J, Leiva, A., Ortiz, J L, Boutet, M, Guirado, J., Ballesteros, F., Morales, N., Horbowicz, J., Fonseca, F., Charmandaris, V., Bretton, M, Maícas, N, Lecacheux, J., Maícas, N., Pastor, S., Delincak, P, Mottola, S., Ana-Hernández, L, Ana-Hernández, L., Ortiz, J., Moindrot, S., Vara-Lubiano, M., Marciniak, A., Lamadrid, J., Carbognani, A.   +96 more
core   +3 more sources

Fast CCD Photometry in the Taiwan-America Occultation Survey

Open Astronomy, 2003
We describe the efforts of the Taiwan-America Occultation Survey (TAOS) project to develop a data acquisition and analysis scheme for fast CCD imaging photometry.
Chen W. P., Zhang Z. W., King S. K., Alcock C., Byun Y. I., Cook K. H., Dave R., Giammarco J., Lee T., Lehner M., Liang C., Lissauer J., Marshall S., Pater I. de, Porrata R., Rice J., Wang A., Wang S. Y., Wen C. Y.   +18 more
doaj   +1 more source

Variable anisotropy of small-scale stratospheric irregularities retrieved from stellar scintillation measurements by GOMOS/Envisat [PDF]

Atmospheric Measurement Techniques, 2014
In this paper, we consider possibilities for studying the anisotropy of small-scale air density irregularities using satellite observations of bi-chromatic stellar scintillations during tangential occultations.
V. Kan, V. F. Sofieva, F. Dalaudier
doaj   +1 more source