Stationkeeping for near halo orbits in the Earth-Moon-Sun system is studied. The full solar system is considered as a perturbation of the restricted three body problem. The families of halo orbits and the motion near them is studied. The general equations of motion are integrated to get the final nominal quasi-periodic orbit. The on/off
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Stationkeeping of libration point orbits, executive summaryGomez, G. et al.111985
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Statistics of atmospheric parameters for multiconjugated adaptive optics for the Observatorio del Roque del los Muchachos
We present the statistical results of the optical-turbulence profiles at the Observatorio del Roque de los Muchachos over a period of six consecutive months. The data were obtained using the generalized SCIDAR technique at the 1m Jacobous Kaptein Telescope. In general, most of the turbulence is concentrated close to the observatory level (2400 m
Fuensalida, J. J. et al.Advertised on:
112004 -
Stellar and ionized gas kinematics of the interacting Seyfert 1.9 galaxy NGC 2992
Integral field spectroscopy in the central 16''x 12'' (2.4 kpc x 1.8 kpc, if H0 = 75 km s-1 Mpc-1) of the Seyfert 1.9 galaxy NGC 2992 has been obtained using the fibre system INTEGRAL. The data are mainly used to study the stellar and ionized gas kinematics. In spite of the photometric disruptions in the outer parts (r > 6 kpc) produced by the
García-Lorenzo, B. et al.Advertised on:
112001 -
Stellar and Ionized-Gas Kinematics of the Seyfert 1 Galaxy NGC 3516
We present bidimensional spectroscopy of the central region (9."4 x 12."2) of the Seyfert galaxy NGC 3516 in the two spectral ranges 4186-5839 A and 6110-7890 A. The data (95 x 2 spectra) were simultaneously obtained with an optical fibre system (2D-FIS). The two-dimensional velocity map of the stellar component was obtained from the Mg I b
Arribas, S. et al.Advertised on:
111997 -
Stellar black holes at the dawn of the Universe: cosmological implications
Not Available
Mirabel, F.Advertised on:
112010 -
Stellar classification of CoRoT targets
Context. The CoRoT mission was the first dedicated to the search for exoplanets from space. The CoRoT exoplanet channel observed about 163 600 targets to detect transiting planetary companions. In addition to the search for exoplanets, the extremely precise photometric time series provided by CoRoT for this vast number of stars is an invaluable
Deeg, H. J. et al.Advertised on:
112016