Results 141 to 150 of about 825 (182)

Astronomical Observations in Support of Planetary Entry-Probes to the Outer Planets. [PDF]

Space Sci Rev
Buratti BJ, Orton GS, Roman MT, Momary T, Bauer JM.   +4 more
europepmc   +1 more source

Scientific objectives and payload configuration of the Chang'E-7 mission. [PDF]

Natl Sci Rev
Wang C, Jia Y, Xue C, Lin Y, Liu J, Fu X, Xu L, Huang Y, Zhao Y, Xu Y, Gao R, Wei Y, Tang Y, Yu D, Zou Y.   +14 more
europepmc   +1 more source

Dispersive lensing and shadows in RN-AdS spacetimes with dark energy and plasma: theory and observational constraints. [PDF]

Sci Rep
Pradhan A, Ghaderi K, Zeyauddin M.
europepmc   +1 more source

Three-dimensional surface deformation field monitoring and influencing factors analysis in mountainous areas based on SBAS-INSAR technology (Tianjin, China). [PDF]

Sci Rep
Shang J, Wang M, Wang X, Yang M, Wu Y, Du W.   +5 more
europepmc   +1 more source

Extreme energy in a relaxed galaxy group indicates the bursty nature of AGN feedback

Eckert D, Gastaldello F, Lovisari L, McGee S, Pasini T, Brienza M, Kolokythas K, O'Sullivan E, Simionescu A, Sun M, Bourne M, Chen Y, Cui W, Ettori S, Finoguenov A, Gozaliasl G, Kale R, Mernier F, Oppenheimer B, Schellenberger G, Seppi R, Tempel E.   +21 more
europepmc   +1 more source

Black hole jets on the scale of the Cosmic Web

Oei MS, Hardcastle MJ, Timmerman R, Gast AR, Botteon A, Rodriguez AC, Stern D, Rivera GC, Weeren RJv, Röttgering HJ, Intema HT, de Gasperin F, Djorgovski S.   +12 more
europepmc   +1 more source

The multiwavelength behaviour of BL Lacertae explained by a wiggling filamentary jet

Raiteri C.
europepmc   +1 more source

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Orbit determination of geosynchronous satellites by VLBI and differential VLBI

Astrodynamics Conference, 1982
Four approaches to radio interferometric tracking of geosynchronous satellites are analyzed and compared. Quasar-based differential very-long-baseline interferometry, which requires a very sensitive receiver, can achieve meter-level position accuracy with a two-baseline system.
T. YUNCK, S. WU
openaire   +1 more source

VLBI in transition

SPIE Proceedings, 2006
European VLBI is undergoing a rapid development. On one hand electronic or e-VLBI is changing the very nature of the European VLBI Network (EVN), on the other hand a dramatically increased time resolution will enable the EVN to image vast areas of sky at unprecedented resolution.
Arpad Szomoru, Huib Jan van Langevelde, Harro Verkouter, Mark Kettenis, Bauke Kramer, Friso Olnon, James Anderson, Cormac Reynolds, Zsolt Paragi, Mike Garrett   +9 more
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Climatic signals observed by VLBI

Acta Geodaetica et Geophysica Hungarica, 2006
VLBI observations at various stations all over the globe have been carried out since the beginning of the eighties. As VLBI allows to determine tropospheric parameters such as hydrostatic and wet zenith path delays stable and long time series of these parameters exist that can be used for climatological studies.
Schuh, H., Panafidina, N., Böhm, J., Heinkelmann, R.   +3 more
openaire   +3 more sources