Results 31 to 40 of about 1,344 (291)

Lunar Occultation Measurements of Stellar Angular Diameters [PDF]

Symposium - International Astronomical Union, 1997
Offering an angular resolution which has remained unattained by any other technique for decades, lunar occultations have traditionally been the most productive method for the measurement of stellar angular diameters. Unlike interferometric methods, which are limited in resolution by the size of the aperture or of the baseline between apertures, in a ...
openaire   +1 more source

Physical properties of Hi'iaka from stellar occultation data [PDF]

, 2021
Two very bright stellar occultations by Hi'iaka, the largest satellite of the dwarf planet Haumea, were predicted to take place during in April 2021. Since the uncertainty on Hi'iaka's shadow path was large due to uncertainty on Hi'iaka's position with ...
Hanna, Bill, Ryan, Al, Buie, Marc, Licandro, Javier, Froetschel, Joseph, Holler, Bryan, Assafin, Marcelo, Desmars, Josselin, Rengstorf, Adam, Burdanov, Artem, Souami, Damya, Grigahcene, Zaki, Braga-Ribas, Felipe, Richard, Francini, Camargo, Julio, Sicardy, Bruno, Lecacheux, Jean, de Wit, Julien, Pérez, Luis, Gibson, Thomas C., Morales, Nicolas, Benedetti-Rossi, Gustavo, González, Hugo, Warner, Elizabeth, Fisher, R. Scott, Vachier, Frederic, Kretlow, Mike, Holcomb, Eric, Kreyche, Steven M., Alvarez-Candal, Alvaro, Steel, Suzanne, Benkhaldoun, Zouhair, Kamin, Roxanne, Canedo, Pablo, Mortensen, Lillian E., McAllister, Georgia Stoel, Duffard, Rene, Caton, Daniel, Morgado, Bruno, Galindo, Francisco, Fraser, Wesley, Rustamkulov, Zafar, Serra-Ricart, Miquel, A'Hearn, Joseph A., de la Vega, Alexander, Ramos Gomes Junior, Altair, Iglesias-Marzoa, Ramón, Encardes, Destin, Dunford, Bob, Fernandez-Garcia, Emilio Jesus, Alarcon, Miguel R., Conti, Dennis, Flynn, Randy, Baba Aissa, Djounai, Castro-Tirado, Alberto, Miller, William J., Luken, Alton, Santos-Sanz, Pablo, Fernández-Valenzuela, Estela, Jehin, Emmanuel, Gonçalves, Rui, Barnes, Jason, Feiden, Gregory A., Rommel, Flavia L., Vara-Lubiano, Mónica, Langill, Philip, Morales, Ruben, Ortiz Moreno, Jose Luis, Blanco, Oscar, Earls, Bernie, Olsen, Aart, Walker, Gary   +71 more
core  

Retrievals from GOMOS stellar occultation measurements using characterization of modeling errors [PDF]

Atmospheric Measurement Techniques, 2010
In this paper, we discuss the development of the inversion algorithm for the GOMOS (Global Ozone Monitoring by Occultation of Star) instrument on board the Envisat satellite.
V. F. Sofieva, J. Vira, E. Kyrölä, J. Tamminen, V. Kan, F. Dalaudier, A. Hauchecorne, J.-L. Bertaux, D. Fussen, F. Vanhellemont, G. Barrot, O. Fanton d'Andon   +11 more
doaj   +1 more source

Comparative Analysis of Starlight Occultation Data Processing

Atmosphere, 2023
In order to improve the inversion accuracy of stellar occultation data and to provide a reference for the selection of inversion methods with higher accuracy in the future, this study compared and analyzed the inversion effects of two different methods ...
Mingchen Sun, Qinglin Zhu, Xiang Dong, Bin Xu, Hong-Guang Wang, Xuan Cheng   +5 more
doaj   +1 more source

CHIMERA Occultation Constraints on the Abundance of Kilometer-scale Kuiper Belt Objects

The Astronomical Journal, 2023
Occultations provide indirect sensitivity to the number density of small Kuiper Belt objects (KBOs) too faint to directly detect telescopically. We present results from the Caltech HI-speed Multicolor camERA (CHIMERA) survey with the Palomar Hale ...
Qicheng Zhang, Gregg W. Hallinan, Navtej S. Saini, Hilke E. Schlichting, Leon K. Harding, Jennifer W. Milburn   +5 more
doaj   +1 more source

The ubiquitin ligase RNF115 is required for the clearance of damaged lysosomes

FEBS Letters, EarlyView.
Upon lysosomal rupture, an E3 ubiquitin ligase RNF115 translocates from the cytosol to the damaged lysosomal membrane. Moreover, RNF115 depletion impairs the clearance of damaged lysosomes, identifying it as a key regulator of lysosomal quality control.
Sae Nakanaga, Toshiki Takahashi, Akiko Kuma, Hiroyuki Kawahara   +3 more
wiley   +1 more source

Occultation events by (307261) 2002 MS4 [Dataset]

, 2023
The physical characterization of the trans-Neptunian objects is essential for improving our understanding of the solar system's formation and evolution.
Duffard, R., Anghel, R. M., Calvo-Fernández, J. F., Guido, E., Santos- Sanz, P., Wilberger, A. J., Vara-Lubiano, M., Morales, N., Frappa, E., Ortiz, J. L.   +9 more
core   +1 more source

Equilibrium figure of Haumea and possible detection via stellar occultation

Astronomy & Astrophysics
We studied the equilibrium figure of dwarf planet Haumea to determine if the observed shape is compatible with a differentiated hydrostatic body. Three groups of interior models of Haumea were assumed, all with a rocky core and a volatile-rich outer ...
Staelen C., Rambaux N., Chambat F., Castillo-Rogez J. C.   +3 more
doaj   +1 more source

Influence of scintillation on quality of ozone monitoring by GOMOS [PDF]

Atmospheric Chemistry and Physics, 2009
Stellar light passing through the Earth atmosphere is affected by refractive effects, which should be taken into account in retrievals from stellar occultation measurements.
F. Vanhellemont, A. Hauchecorne, D. Fussen, J.-L. Bertaux, J. Tamminen, F. Dalaudier, E. Kyrölä, V. Kan, V. F. Sofieva   +8 more
doaj  

Gaia17bpp: A Giant Star with the Deepest and Longest Known Dimming Event

The Astrophysical Journal, 2023
We report the serendipitous discovery of Gaia17bpp/2MASS J19372316+1759029, a binary star with a deep single large-amplitude dimming event of ∼4.5 mag that lasted over 6.5 yr.
Anastasios Tzanidakis, James R. A. Davenport, Eric C. Bellm, Yuankun Wang   +3 more
doaj   +1 more source