Science Archives Publication System

An Ultraviolet Spectral Atlas of VV Cephei during Total Eclipse

DOI: 10.1086/514334 Bibcode: 2007ApJS..171..249B

Bennett, Philip D.; Brown, Alexander; Bauer, Wendy Hagen

The first observations of the ultraviolet spectrum of the binary system VV Cep (M2 Iab+B?) during total eclipse have been made with the HST. A rich emission-line spectrum is seen, with over two thousand emission features present. Shortward of 1600 Å, a weak continuum presumably due to Rayleigh scattering of the hot component is present, strengthen…

2007 • The Astrophysical Journal Supplement Series

eHST 5

The double-lined spectroscopic binary HR 6046

DOI: 10.1111/j.1365-2966.2007.11459.x Bibcode: 2007MNRAS.376.1671S

Griffin, R. E. M.; Scarfe, C. D.; Griffin, R. F.

HR 6046 has long been known as a single-lined binary system, for which preliminary orbital solutions were given in the 1930s, but the nature of the secondary star in the system has to date appeared puzzling. The rather large masses which the component stars were once believed to possess caused much speculation that the secondary was a `collapsed s…

2007 • Monthly Notices of the Royal Astronomical Society

Hipparcos 5

A rough-surface scattering function for Titan radar studies

DOI: 10.1029/2007GL030442 Bibcode: 2007GeoRL..3414203C

Campbell, Bruce A.

Numerous studies show a relationship between radar backscattering and surface roughness. While estimating the statistical properties of small-scale topography is of particular interest for geologic analysis of Cassini radar data, there is no analytic description of radar scattering over a wide range of incidence angles and roughness. This paper pr…

2007 • Geophysical Research Letters

Cassini 5

Comparison of the dust distributions in the innermost comae of comets—1P/Halley and 19P/Borrelly spacecraft observations

DOI: 10.1016/j.pss.2006.12.004 Bibcode: 2007P&SS...55..974H

Thomas, Nicolas; Tenishev, Valeriy; Combi, Michael +3 more

We present a comparative study of the inner comae of comets 1P/Halley and 19P/Borrelly using data from the Halley Multicolour Camera (HMC) onboard Giotto and the Miniature Integrated Camera and Spectrometer onboard Deep Space 1 (DS1). We show that the dust brightness dependence as a function of radial distance is different for both comets. We sugg…

2007 • Planetary and Space Science

Giotto 5

A Contribution to the Understanding of Chromospheric Oscillations

DOI: 10.1007/s11207-007-0006-3 Bibcode: 2007SoPh..241...39B

Vial, J. -C.; Baudin, F.; Bocchialini, K. +5 more

We present SUMER/SOHO UV measurements of chromospheric oscillations of intensity, velocity, and linewidth observed in C I, S I, O I, and C II lines, which are formed in the altitude range from 1000 km to 2000 km above τ₅₀₀=1. Oscillations in lines originating at similar altitudes exhibit different behaviors which we discuss in terms of …

2007 • Solar Physics

SOHO 5

Morphologies of AGN host galaxies using HST/ACS in the CDFS-GOODS field

DOI: 10.1007/s10509-007-9648-8 Bibcode: 2007Ap&SS.312...63H

Hasan, Priya

Using HST/ACS images in four bands F435W, F606W, F775W and F850LP, we identify optical counterparts to the X-ray sources in the Chandra Deep Field South in the GOODS South field. A detailed study has been made of these sources to study their morphological types. We use methods like decomposition of galaxy luminosity profiles, color maps and visual…

2007 • Astrophysics and Space Science

eHST 5

Cluster Observations of the Magnetospheric Low-Latitude Boundary Layer and Cusp during Extreme Solar Wind and Interplanetary Magnetic Field Conditions: I. 10 November 2004 ICME

DOI: 10.1007/s11207-007-0417-1 Bibcode: 2007SoPh..244..201B

Dandouras, I.; Fazakerley, A. N.; Marghitu, O. +6 more

We present a study of the magnetospheric cusp response to extreme external parameters during passage of the ICME over the Earth on 10 November 2004, based on Cluster observations of the plasma properties inside the low-latitude boundary layer (LLBL)/cusp regions. Two separate events are observed while Cluster is in the dawn sector, 07 - 08 h magne…

2007 • Solar Physics

Cluster 5

The Black Hole Mass of Abell 1836-BCG and Abell 3565-BCG

DOI: 10.48550/arXiv.0706.1959 Bibcode: 2007MmSAI..78..745D

Ferrarese, L.; Dalla Bontà, E.; Corsini, E. M. +3 more

Two brightest cluster galaxies (BCGs), namely Abell 1836-BCG and Abell 3565-BCG, were observed with the Advanced Camera for Surveys (ACS) and the Space Telescope Imaging Spectrograph (STIS) on board the Hubble Space Telescope. By modeling the available photometric and kinematic data, it resulted that the mass of Abell 1836-BCG and Abell 3565-BCG a…

2007 • Memorie della Societa Astronomica Italiana

eHST 5

Confirmation of New Planetary Nebulae in the Large Magellanic Cloud

DOI: 10.1086/511189 Bibcode: 2007PASP..119...19S

Parker, Quentin A.; Reid, Warren A.; Shaw, Richard A.

We present Hubble Space Telescope (HST) images of new planetary nebulae (PNe) that were discovered in the Reid-Parker Anglo-Australian Observatory/UK Schmidt Telescope Hα survey of the Large Magellanic Cloud. These serendipitous observations from various HST programs yield independent confirmations of six PNe; one other detected nebula may also be…

2007 • Publications of the Astronomical Society of the Pacific

eHST 5

The In-Flight Performance of the SOHO/CDS Grazing Incidence Spectrometer

DOI: 10.1007/s11207-007-0306-7 Bibcode: 2007SoPh..242..187K

Del Zanna, G.; Kuin, N. P. M.

We present the characteristics, operations history, performance, and calibration of the Grazing Incidence Spectrometer (GIS) of the Coronal Diagnostic Spectrometer onboard SOHO. The GIS sensitivity has been monitored in a direct manner by examining the quiet Sun count rates during 1996 - 2006, nearly a whole solar cycle of observations. Overall, t…

2007 • Solar Physics

SOHO 5