Search Publications
CASSINI/VIMS-V at Jupiter: Radiometric calibration test and data results
Brown, R. H.; Gondet, B.; Langevin, Y. +5 more
During the Cassini-Huygens flyby of Jupiter in December 2000, VIMS-V acquired multispectral data cubes of Jupiter's atmosphere. The visual and infrared imaging spectrometer-visual channel (VIMS-V) is one of the principal contributions of Italian Space Agency (ASI) to the Cassini-Huygens mission to Saturn. VIMS-V is an imaging spectrometer operatin…
Cluster measurements of rapidly moving sources of ELF/VLF chorus
Gurnett, D. A.; Pickett, J. S.; Inan, U. S. +2 more
The first simultaneous measurements of discrete chorus emissions on multiple spacecraft, realized in the context of the Cluster mission, revealed a rather unexpected frequency difference of around 1 kHz between nearly identical discrete elements observed on different spacecraft [, 2001]. This frequency difference is interpreted herein as a natural…
Effect of the electron density stratification on off-limb O VI line profiles: How large is the velocity distribution anisotropy in the solar corona?
Solanki, S. K.; Raouafi, N. -E.
Coronagraphic spectral observations carried out with UVCS on SoHO have shown that the velocity distribution in the solar corona is highly anisotropic. Here we examine the influence of the density stratification on the interpretation of such observations. In particular, we investigate the profiles of O VI lines emitted in the corona by employing an…
Neutral hydrogen gas in interacting galaxies: the NGC 6221/6215 galaxy group
Koribalski, Bärbel; Dickey, John M.
Neutral hydrogen observations of the spiral galaxies NGC 6221 and 6215 with the Australia Telescope Compact Array (ATCA) reveal a wide, two-stranded bridge of at least 3 × 108 Msolar which can be traced between the two galaxies over a projected distance of 100 kpc. The velocity gradient of the HI bridge provides a rough estim…
Solar Energetic Particle Acceleration in Refracting Coronal Shock Waves
Vainio, Rami; Khan, Josef I.
Gradual solar energetic particle (SEP) events are known to be correlated with coronal mass ejections (CMEs) and soft X-ray flares. The current paradigm of particle acceleration in these events attributes it to CME-driven shock waves in the solar corona and in interplanetary space. Even in small gradual SEP events related to CMEs with speeds in the…
CLUSTER encounters with the high altitude cusp: boundary structure and magnetic field depletions
Balogh, A.; Dandouras, I.; Lavraud, B. +6 more
Available from http://www.copernicus.org/site/EGU/annales/22/5/1739.htm?FrameEngine=false;
Confusion noise at far-infrared to millimetre wavelengths
Negrello, M.; Magliocchetti, M.; De Zotti, G. +3 more
We present detailed predictions for the confusion noise due to extragalactic sources in the far-infrared/(sub)millimetre channels of the ESA/ISO, NASA/Spitzer, ESA/Herschel and ESA/Planck satellites, including the contribution from clustering of unresolved SCUBA galaxies. Compared to the case of purely Poisson fluctuations, clustering is found to …
Exploring the Upper Red Giant and Asymptotic Giant Branches: The Globular Cluster M5
Bolte, Michael; Sandquist, Eric L.
We have tabulated lists of upper red giant, horizontal-, and asymptotic giant branch (RGB, HB, and AGB) stars in the globular cluster M5 that are complete to over 10' from the core for the RGB and AGB samples, and 8' for the HB sample. The large samples give us the most precise value of R2=NAGB/NHB to date for a si…
A deeper view of extremely red galaxies: the redshift distribution in the GOODS/CDFS ISAAC field
McLure, R. J.; Dunlop, J. S.; Caputi, K. I. +1 more
We have analysed five-epoch Great Observatories Origins Deep Survey (GOODS) HST-ACS B, V, I775 and z data sets (v. 1.0 release), in conjunction with existing VLT-ISAAC imaging in the J, H and Ks bands, to derive estimated redshifts for the sample of 198 extremely red galaxies (ERGs) with Ks < 22 (Vega) and (I
The European Large Area ISO Survey - VIII. 90-µm final analysis and source counts
Pérez-Fournon, I.; Puget, J. -L.; del Burgo, C. +17 more
We present a re-analysis of the European Large Area Infrared Space Observatory (ISO) Survey (ELAIS) 90-µm observations carried out with ISOPHOT, an instrument on board the ISO of the European Space Agency. With more than 12 deg2, the ELAIS survey is the largest area covered by ISO in a single programme and is about one order of ma…