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Radio and Hard X-Ray Imaging Observations of the M5.7 Flare of 2002 March 14
Kundu, M. R.; Garaimov, V. I.; Schmahl, E. J.
We describe a flare of GOES class M5.7 that was observed simultaneously by RHESSI (Ramaty High Energy Solar Spectroscopic Imager) and NoRH (Nobeyama Radio Heliograph). The flare occurred in AR 9866 located near the disk center. The hard X-ray (HXR), microwave, EIT, and TRACE 195 Å observations indicate that the flaring region consisted of a comple…
The fundamental plane of quasars
Turnshek, David A.; Casertano, Stefano; Hamilton, Timothy S.
We present results from an archival study of 70 medium-redshift QSOs observed with the Wide Field Planetary Camera 2 on board the Hubble Space Telescope. The QSOs have magnitudes MV ⩽ -23 (total nuclear plus host light) and redshifts 0.06 ⩽ z ⩽ 0.46.
A close relationship between QSO host and nucleus is found by examining multiple p…Orbits and Differential Photometry for Visual Binaries A 1529, HU 610, and COU 2031
Docobo, José A.; Tamazian, Vakhtang S.
The first orbit for visual binary A 1529 and improved orbital elements for HU 610 and COU 2031 based on new speckle measurements with the 6 m telescope of the Special Astrophysical Observatory (Russia) are presented. On the basis of simultaneously obtained differential photometry data, individual masses and spectral types are roughly estimated. Th…
Cepheids in Multiple Systems: ADS 14859
Evans, Nancy Remage; Karovska, Margarita; Massa, Derck +3 more
We have attempted to resolve the system containing the Cepheid V1334 Cyg (=ADS 14859) using both the Faint Object Camera (FOC) and the Fine Guidance Sensor (FGS) on the Hubble Space Telescope, and also using ground-based speckle interferometry with 4 m class instruments. None of these approaches was successful, leading to upper limits of approxima…
The Double Star magnetic field investigation: Overview of instrument performance and initial results
Balogh, A.; Zhang, T. L.; Nakamura, R. +15 more
Double Star is a Chinese National Space Administration mission which augments the European Space Agency's Cluster mission by launching an additional two spacecraft; one into an equatorial orbit and one into a polar orbit. These orbits are carefully chosen to complement Cluster by maximising the opportunities for useful conjunctions when Double Sta…
A new method to investigate hyperspectral image cubes: An application of the wavelet transform
Gendrin, Aline; Bibring, Jean-Pierre; Langevin, Yves +1 more
Data analysis of the Observatoire pour la Minéralogie, l'Eau, les Glaces, et l'Activité (OMEGA), the imaging spectrometer aboard Mars Express, necessitates the use of techniques able to extract the relevant information of large data sets. Numerous efficient algorithms have already been developed for similar purposes for terrestrial imaging spectro…
X-ray Emission from the Pre-Main Sequence Systems FU Orionis and T Tauri
Güdel, Manuel; Audard, Marc; Briggs, Kevin +2 more
We present new results from recent X-ray observations of the accreting pre-main sequence stars FU Orionis and T Tauri. XMM-Newton observations of the close binary system FU Ori reveal an unusual X-ray spectrum consisting of a cool moderately-absorbed component and a hot component viewed through much higher absorption. The two components thus origi…
X-rays from the Symbiotic Star RX Pup
Sokoloski, J. L.; Costa, Roberto D. D.; Luna, Gerardo J. M.
We describe X-ray and optical observations of the symbiotic star RX Pup. From low resolution optical spectra, we obtain a reddening for RX Pup of E(B‑V)=0.79. We use the neutral column density corresponding to this reddening as a lower limit for the X-ray spectra fits. The X-ray spectra can be fitted with either a two-temperarure thermal plasma mo…
Reconstructed global feature of an interplanetary disturbance for the full-halo coronal mass ejection event on 1999 September 20
Nakagawa, T.; Tokumaru, M.; Kojima, M. +2 more
Traveling interplanetary (IP) disturbances associated with the full-halo coronal mass ejection (CME) which occurred on September 20, 1999, were observed clearly with the 327-MHz interplanetary scintillation (IPS) system of the Solar-Terrestrial Environment Laboratory of Nagoya University. In this study, we retrieved the global features of the IP d…
Proper Motions of Faint Ultraviolet-bright Sources in the Sandage Two-Color Survey of the Galactic Plane
Lépine, Sébastien; Lanning, Howard H.
Proper motions with values >=10 or <=-10 mas yr-1 have been extracted from the USNO-B1.0 and Tycho-2 catalogs for all Lanning UV-bright sources identified in the Sandage Two-Color Survey of the Galactic Plane and presented in Papers I-VI. Of the 572 sources examined, we find at least 213 that exhibit a significantly large proper m…