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Cluster CAA Module for PaPCo

Goldstein, M. L.; Åsnes, A.; Friedel, R. +4 more

A PaPCo module for visualization of data from the CAA has been developed. This module retrieves data from the CAA web interface, and allows for discovery and plotting of new datasets. PaPCo is modular, open source IDL software that uses plug-in modules to bring new datasets on to a stack of time series plots (www.papco.org). PaPCo includes modules…

Introduction to special section on Saturn’s rings and icy satellites from Cassini

Esposito, Larry W.; Hendrix, Amanda R.

Spectral variability of the α Sco AB binary system observed with IUE

Sanad, M. R.; Bobrowsky, M.

We present ultraviolet spectra of the α Sco AB binary system taken by the International Ultraviolet Explorer during the period from 1979 to 1995. An investigation is carried out on the spectral variability of Mg II k and h emission lines arising from the chromosphere of α Sco A ( Van der Hucht et al., 1979). There are absorption and emission compo…

Associations of decimetric type III bursts with coronal mass ejections and Hα flares

Lin, Jun; Ma, Yuan; Wang, De-Yu +2 more

We present a statistical study of decimetric type III radio bursts, coronal mass ejections (CMEs), and Hα flares observed in the period from July 2000 to March 2005. In total, we investigated 395 decimetric type III radio burst events, 21% of which showed apparent correlation to CMEs that were associated with Hα flares. We noticed that the Hα flar…

Observations of the 3D coronal structure over a solar cycle

Morgan, Huw; Habbal, Shadia

Solar rotational tomography is applied to almost eleven years of LASCO C2/SOHO data, revealing for the first time the structural behavior of streamers over almost a full solar activity cycle. Streamers are most often shaped as extended, narrow plasma sheets. The sheets can be extremely narrow at times (<=0.14×10⁶ km at 4R_solar

Disparity of spectral behavior of RR Tel and RX Pup in the UV

Sanad, M. R.

The main aim of this study is to use archival low-dispersion spectra from the International Ultraviolet Explorer (IUE) in an attempt to follow up the spectral behavior of two symbiotic Mira systems RR Tel and RX Pup of the period from 1978-1995 and 1979-1989 for two systems respectively. We concentrated on studying N IV 1486 Å intercombination lin…

The XMM-Newton Slew Survey: Towards The Whole X-ray Sky and the Rarest X-ray Events

Read, A. M.; Esquej, P.; Warwick, R. S. +1 more

The data collected by XMM-Newton as it slews between pointings currently cover almost half the entire sky, and many familiar features and new sources are visible. The soft-band sensitivity limit of the Slew is close to that of the RASS, and a large-area Slew-RASS comparison now provides the best opportunity for discovering extremely rare high-vari…

Eclipsing and density effects on the spectral behavior of Beta Lyrae binary system in the UV

Sanad, M. R.

We analyze both long and short high resolution ultraviolet spectrum of Beta Lyrae eclipsing binary system observed with the International Ultraviolet Explorer (IUE) between 1980 and 1989. The main spectral features are P Cygni profiles originating from different environments of Beta Lyrae. A set of 23 Mg II k&h spectral lines at 2800 Å, origin…

Clumps in the stellar wind of Vela X-1

Rothschild, Richard E.; Fürst, Felix; Kretschmar, Peter +5 more

We present a detailed analysis of all public available INTEGRAL data of the HMXB pulsar Vela X-1. During the more active phases, Vela X-1 featured bright flares with a maximum intensity of more than 5 Crab, but at the same time also offstates during which the source was undetectable by INTEGRAL/ISGRI [1]. We interpret this behavior as a direct evi…

Identification of planetary wave patterns associated with ice seasonal sublimation/condensation dynamics in the polar regions of mars, based on IR mapping spectrometer OMEGA onboard Mars Express

Bibring, J. -P.; Fedorova, A. A.; Kuzmin, R. O. +3 more

Channel C of the orbital hyperspectrometer OMEGA onboard Mars Express spacecraft has delivered data on the distribution and seasonal variability of water ice spectral features at 1.25, 1.5, 2.0 µm, based on which one may conclude about the thickness of ice coverage and microstructure of the upper, optically active ice layer on the Martian su…