Search Publications
Missions
Journals
Publication Years
Remote sensing of possible plasma density bubbles in the inner Jovian dayside magnetosphere
Gurnett, D. A.; Hospodarsky, G. B.; Kurth, W. S. +4 more
During the 2001 Cassini encounter with Jupiter, the Radio and Plasma Wave Science (RPWS) instrument detected fine spectral and temporal structure with broadband kilometric radiation. Applying known electron cyclotron harmonic radiation models, this microstructure is interpreted as originating from a plasma density depletion or bubble at the edge o…
The z~4 Lyman Break Galaxies: Colors and Theoretical Predictions
Papovich, Casey; Ferguson, Henry C.; Giavalisco, Mauro +4 more
We investigate several fundamental properties of z~4 Lyman break galaxies by comparing observations with the predictions of a semianalytic model based on the cold dark matter theory of hierarchical structure formation. We use a sample of B435-dropouts from the Great Observatories Origins Deep Survey and complement the Advanced Camera fo…
The Impact of Space Experiments on our Knowledge of the Physics of the Universe
Giovannelli, Franco; Sabau-Graziati, Lola
With the advent of space experiments it was demonstrated that cosmic sources emit energy practically across all the electromagnetic spectrum via different physical processes. Several physical quantities give witness to these processes which usually are not stationary; those physical observable quantities are then generally variable. Therefore simu…
A possible new dipping X-ray source in the field of M 31
Stella, L.; Israel, G. L.; Mangano, V.
We report the discovery of the new dipping X-ray source, XMMU J004308.6+411247, in M 31, during a systematic search for periodicities in XMM-Newton archival observations. During the 2002 January 6 observation, the dips recur with a 107 min period and the source count rate is consistent with zero at the dip minimum. Dips with the same modulation an…
Broadband X-ray spectrum of intermediate polar V1223 Sgr
Sunyaev, R.; Revnivtsev, M.; Lutovinov, A. +2 more
We present the broadband phase averaged spectrum of one of the brightest intermediate polars V1223 Sgr, obtained with INTEGRAL and RXTE observatories (3-100 keV). Good statistical quality of the spectrum in a hard X-ray energy band (INTEGRAL/IBIS and RXTE/HEXTE) allowed us to disentangle contributions of a direct optically thin plasma emission and…
Modeling of remote sensing of thin current sheet
Parks, G. K.; Lee, E.; Wilber, M. +2 more
Cluster encountered a thin current sheet in the magnetotail during a substorm on Oct. 1, 2001. The phase space distributions observed by Cluster CIS showed large gradients in the phase space with ions existing only in one hemisphere of the phase space. It has been suggested that these non-gyrotropic distributions come from remote sensing of a thin…
Virgo High-Resolution CO Survey: IV. Spiral-Driven Gas Dynamics in the Non-Barred Seyfert Galaxy NGC 4501
Kohno, Kotaro; Koda, Jin; Onodera, Sachiko +1 more
We report on high-resolution interferometer observations of the 12CO(J = 1-0) emission in the central 5kpc region of the Seyfert 2 galaxy NGC 4501. The observations were made using the Nobeyama Millimeter Array during a long-term CO line survey of Virgo spirals. The major features are: (1) a nuclear concentration with a radius of r ∼ 5'…
High resolution solar magnetometry with the spectrograph of the Pic du Midi Turret Dome
Roudier, Th.; Muller, R.; Mein, P. +2 more
We present the first results obtained with a new Ferroelectric Liquid Crystal (FLC) polarimeter operating with the spectrograph of the Pic du Midi Turret Dome, since September 2003. We observed the solar granulation around active region NOAA 0459 with the Multichannel Subtractive Double Pass (MSDP) operating mode and analysed the circular polariza…
A Substellar Companion to van Maanen 2
Makarov, Valeri V.
The Hipparcos data for the nearest white dwarf van Maanen 2 (=HIP 3829; distance of 4.4 pc) indicate astrometric binarity, in that the proper motion has a large first derivative not accounted for as a perspective acceleration due to changing distance. The presence of a companion was suspected, but never demonstrated, from the pre-Hipparcos astrome…
New insight into the blinker phenomenon and the dynamics of the solar transition region
Doyle, J. G.; Madjarska, M. S.; Roussev, I. I.
We present, for the first time, blinker phenomena being associated with brightenings in pre-existing coronal loops registered by the Extreme-ultraviolet Imaging Telescope (EIT) in Fe XII 195 Å. The brightenings occur during the emergence of new magnetic flux as registered by the Big Bear Solar Observatory (BBSO) magnetograph. The blinkers were ide…