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The Spectral Energy Distribution of the Seyfert galaxy Ton S180
T. J. Turner, P. Romano, S. B. Kraemer +14
We present spectral results from a multi-satellite, broad-band campaign on the Narrow-line Seyfert 1 galaxy Ton S180 performed at the end of 1999. We discuss the spectral-energy di…
The Chandra Deep Field South: the 1 Million Second
P. Rosati, P. Tozzi, R. Giacconi +16
We present the main results from our 940 ksec observation of the Chandra Deep Field South (CDFS), using the source catalog described in an accompanying paper (Giacconi et al. 2001)…
Far Ultraviolet Spectroscopic Explorer Observations of the Seyfert 1.5 Galaxy NGC 5548 in a Low State
M. S. Brotherton, R. F. Green, G. A. Kriss +4
We present far-ultraviolet spectra of the Seyfert 1.5 galaxy NGC 5548 obtained in 2000 June with the Far Ultraviolet Spectroscopic Explorer (FUSE). Our data span the observed wavel…
Resolving the Structure of Ionized Helium in the Intergalactic Medium with the Far Ultraviolet Spectroscopic Explorer
G. A. Kriss, J. M. Shull, W. Oegerle +16
The neutral hydrogen and the ionized helium absorption in the spectra of quasars are unique probes of structure in the early universe. We present Far-Ultraviolet Spectroscopic Expl…
Towards Spectral Classification of L and T Dwarfs: Infrared and Optical Spectroscopy and Analysis
T. R. Geballe, G. R. Knapp, S. K. Leggett +2
We present 0.6-2.5um, R~400 spectra of twenty-seven cool, low luminosity stars and substellar objects. Based on these and previously published spectra we develop a preliminary spec…
Ultraviolet Broad Absorption Features and the Spectral Energy Distribution of the QSO PG 1351+64
W. Zheng, G. A. Kriss, J. X. Wang +7
We present a moderate-resolution (~20 km/s) spectrum of the mini broad-absorption-line QSO PG1351+64 between 915-1180 A, obtained with the Far Ultraviolet Spectroscopic Explorer (F…
Evidence for an accelerating wind as the broad-line region in NGC 3516
J. B. Hutchings, G. A. Kriss, R. F. Green +4
Spectroscopic data in wavelengths 900--3000A have been obtained in a low flux state of the nucleus of the Seyfert 1 galaxy NGC 3516. The line profiles show P Cygni characteristics,…
New Results from the X-ray and Optical Survey of the Chandra Deep Field South: The 300ks Exposure
P. Tozzi, P. Rosati, M. Nonino +15
We present results from 300 ks of X-ray observations of the Chandra Deep Field South. The field of the four combined exposures is now 0.1035 deg^2 and we reach a flux limit of 10^{…