Results 151 to 160 of about 909 (203)

Hb-Ho: Observations with the sibling telescope in Hobart

, 2015
With the transition to VGOS, co-located radio telescopes will be common at many sites. This can be as a sibling telescope, when a VGOS antenna is built next to a legacy one or as the concept of a twin telescope, with two identical VGOS antennas. Besides
Mayer, David, Böhm, Johannes, Plank, Lucia, McCallum, Jamie, Lovell, Jim   +4 more
core  

Geodetic Investigations of the Europa Clipper Mission. [PDF]

Space Sci Rev
Steinbrügge G, Park RS, Roberts JH, Bland M, Brooks S, Castillo-Rogez J, Cascioli G, Genova A, Greathouse T, Hussmann H, Kirk R, Magnanini A, Mazarico E, Nimmo F, Park MS, Petricca F, Retherford K, Schroeder DM, Soderlund KM, Tortora P, Zannoni M.   +20 more
europepmc   +1 more source

Optical frequency comb integration in radio telescopes: advancing signal generation and phase calibration. [PDF]

Light Sci Appl
Hyun M, Ahn C, Choi J, Baek J, Jeong W, Je DH, Byun DY, Wagner J, Heo MS, Jung T, Kim J.   +10 more
europepmc   +1 more source

Proper motion, spectra, and timing of PSR J1813-1749 using <i>Chandra</i> and <i>NICER</i>. [PDF]

Mon Not R Astron Soc, 2020
Ho WCG, Guillot S, Parkinson PMS, Limyansky B, Ng CY, Bejger M, Espinoza CM, Haskell B, Jaisawal GK, Malacaria C.   +9 more
europepmc   +1 more source

Evidence for a sub-Jovian planet in the young TWA 7 disk. [PDF]

Nature
Lagrange AM, Wilkinson C, Mâlin M, Boccaletti A, Perrot C, Matrà L, Combes F, Beust H, Rouan D, Chomez A, Milli J, Charnay B, Mazevet S, Flasseur O, Olofsson J, Bayo A, Kral Q, Carter A, Crotts KA, Delorme P, Chauvin G, Thebault P, Rubini P, Kiefer F, Radcliffe A, Mazoyer J, Bodrito T, Stasevic S, Langlois M.   +28 more
europepmc   +1 more source

Observations of Radio Sources Near the Sun

, 2019
Geodetic Very Long Baseline Interferometry (VLBI) data are capable of measuring the light deflection caused by the gravitational field of the Sun and large planets with high accuracy.
Ivanov, Dmitry, Schartner, Matthias, Melnikov, Alexey, Ishigaki, Masafumi, Weston, Stuart, Yi, Sang-Oh, Mikhailov, Andrey, de Witt, Aletha, Xia, B., Titov, Oleg, Gulyaev, Sergei, McCallum, Jamie, Lambert, Sebastien, Shu, Fengchun, Natusch, Tim, Wen, Chen, Soja, Benedikt, McCallum, Lucia   +17 more
core  

X-ray astronomy from the lunar surface. [PDF]

Philos Trans A Math Phys Eng Sci
Gandhi P.
europepmc   +1 more source

Baseline-dependent clock offsets in VLBI data analysis. [PDF]

J Geod, 2021
Krásná H, Jaron F, Gruber J, Böhm J, Nothnagel A.   +4 more
europepmc   +1 more source

Titan's spin state as a constraint on tidal dissipation. [PDF]

Sci Adv
Downey BG, Nimmo F.
europepmc   +1 more source

Celestial positions in radio and optical

, 2006
We discuss the importance of the direct link between the most accurate radio and optical reference frames that will become possible with the next-generation space astrometry missions in about a decade.
Frey, S., Vida, K., Veres, P.
core