Haldoupis, C. I.; Nielsen, E.: Results on relative scattering cross section of 140 MHz auroral backscatter. Journal Geophysical Research 89, p. 2305 (1984)
Haldoupis, C. I.; Nielsen, E.; Ierkic, H. M.: STARE Doppler spectral studies of westward electrojet radar aurora. Planetary and Space Science 32, p. 1291 (1984)
Nielsen, E.; Haldoupis, C. I.; Fejer, B. G.; Ierkic, H. M.: Dependence of auroral power spectral variations upon electron drift velocity in the eastward electrojet. Journal Geophysical Research 89, pp. 253 - 260 (1984)
Haldoupis, C. I.; Nielsen, E.: Simultaneous geomagnetic and radio auroral observations. Journal of Atmospheric and Terrestrial Physics 45, p. 543 (1983)
Haldoupis, C. I.; Nielsen, E.; Goertz, C.: Experimental evidence on the dependence of 140 MHz radar auroral backscatter characteristics on ionospheric conductivity. Journal Geophysical Research 87, p. 7666 (1982)
Haldoupis, C. I.; Nielsen, E.; Holtet, J. A.; Egeland, A.; Chivers, H. A. J.: Radar auroral observations during a burst of irregular magnetic pulsations. Journal Geophysical Research 87, p. 1541 (1982)
The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior.
Data from NASA's Dawn mission, analyzed for the first time, suggest that brine rose from the depths and organic compounds were deposited in Urvara crater.