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Lessons from the GOODS [review article]
Giavalisco, Mauro
The Great Observatories Origins Deep Survey (GOODS) is a multi-facility project that combines data from NASA's Hubble, Chandra and Spitzer space telescopes with spectroscopy and ancillary optical and near-IR imaging from the ground (VLT, Keck, Gemini, Subaru, NOAO) to provide a database for studying galaxy and AGN evolution up to redshifts z ∼ 6.5…
Possible Optical Detection of the Anomalous X-Ray Pulsar CXOU J010043.1-721134
Durant, Martin; van Kerkwijk, Marten H.
Archival Hubble Space Telescope Wide Field Planetary Camera 2 observations of the Small Magellanic Cloud have serendipitously revealed a possible counterpart to the anomalous X-ray pulsar CXOU J010043.1-721134. The candidate is faint, but its location and strange colors make it an interesting object. We estimate that the probability of such a dete…
UVCS/SOHO investigation of the interface between streamers and coronal holes
Romoli, M.; Spadaro, D.; Ventura, R. +1 more
We investigated the properties of the interface between streamers and coronal holes at low heliocentric distances, observing the extended solar corona in the North-West quadrant by UVCS/SOHO. We measured the line profiles of the H I Lyα and O VI resonance doublet and the visible linearly polarized radiance at heliocentric distances ranging from 1.…
Electron Acceleration in the Corona
Simnett, G. M.
The series of nine impulsive, highly collimated beams of near-relativistic electrons seen by ACE/EPAM on 26 and 27 June 2004 occurred at a quiet time with respect to solar flare and CME production. However, they were accompanied by decametric type III radio bursts observed by WIND/WAVES, which had progressively higher starting frequencies, suggest…
Coronal Element Comparison Observed by SOHO SUMER in the Quiet Southeast and Northwest Limb Regions at 1.04 Rsolar above the Solar Disk
Landi, E.; Feldman, U.; Widing, K. G.
The composition in an isothermal region at 1.04 Rsolar above a diffuse, quiet coronal region on the northwest limb is studied and compared with a similar region above the southeast limb analyzed by Warren in 1999. Elemental abundances relative to H in the corona are measured and normalized to the abundance ratios in the photosphere. The…
A statistical study on the correlations between plasma sheet and solar wind based on DSP explorations
Zhang, T. L.; Rème, H.; Liu, Z. X. +3 more
By using the data of two spacecraft, TC-1 and ACE (Advanced Composition Explorer), a statistical study on the correlations between plasma sheet and solar wind has been carried out. The results obtained show that the plasma sheet at geocentric distances of about 9~13.4 Re has an apparent driving relationship with the solar wind. It is found that (1…
Erratum: A high-velocity ionized outflow and XUV photosphere in the narrow emission line quasar PG1211+143
O'Brien, P. T.; King, A. R.; Reeves, J. N. +3 more
DEPFET development at the MPI semiconductor laboratory
Lutz, Gerhard
The DEPFET device concept offers unique properties that make it useful for applications in X-ray astronomy and particle physics as well as in other fields. They form the basis for two major projects of the MPI Semiconductor Laboratory. This survey reviews device concepts, potential, technology and properties of devices produced at the laboratory. …
Explosive events in the solar atmosphere seen in extreme-ultraviolet emission lines
Wilhelm, K.; Mendoza-Torres, J. E.; Torres-Papaqui, J. P.
We present observations of explosive events (EEs) in the solar atmosphere obtained with the Solar Ultraviolet Measurements of Emitted Radiation (SUMER) spectrometer on the Solar and Heliospheric Observatory (SOHO) in the wavelength range from about 750 Å to 790 Å. Prominent spectral lines in this range are emitted by ions which have temperatures o…
Wavelet Spectrum Analysis Of Eit/Soho Images
Delouille, V.; De Patoul, J.; Hochedez, J. F. +2 more
The extreme ultraviolet imaging telescope (EIT) of SOHO offers a unique record of the solar atmosphere for its sampling in temperature, field of view, resolution, duration, and cadence. To investigate globally and locally its topology and evolution during the solar cycle, we consider a multi-scale approach, and more precisely we use the wavelet sp…