Spectroscopic observations of Nova CYG 1975 : the coronal line phase.

1977 ◽  
Vol 213 ◽  
pp. 132 ◽  
Author(s):  
G. Ferland ◽  
D. L. Lambert ◽  
J. H. Woodman
Keyword(s):  
Coronal Line ◽  
Spectroscopic Observations

Spectroscopic Observations of Nova Cygni 1975: The Coronal Line Region Revisited: Erratum

1986 ◽  
Vol 62 ◽  
pp. 939
Author(s):  
G. J. Ferland ◽  
D. L. Lambert ◽  
J. H. Woodman
Keyword(s):  
Coronal Line ◽  
Spectroscopic Observations ◽  
Line Region

Spectroscopic observations of Nova Cygni 1975 - The coronal line region revisited

1986 ◽  
Vol 60 ◽  
pp. 375 ◽  
Author(s):  
G. J. Ferland ◽  
D. L. Lambert ◽  
J. H. Woodman
Keyword(s):  
Coronal Line ◽  
Spectroscopic Observations ◽  
Line Region

Spectroscopic Observations of Visual Double Stars

1965 ◽  
Vol 5 ◽  
pp. 109-111
Author(s):  
Frederick R. West
Keyword(s):  
Radial Velocity ◽  
High Dispersion ◽  
Velocity Difference ◽  
Spectrograph Slit ◽  
Spectroscopic Observations ◽  
Double Stars ◽  
Visual Double Stars ◽  
Relative Orbit ◽  
Two Component ◽  
Star Images

There are certain visual double stars which, when close to a node of their relative orbit, should have enough radial velocity difference (10-20 km/s) that the spectra of the two component stars will appear resolved on high-dispersion spectrograms (5 Å/mm or less) obtainable by use of modern coudé and solar spectrographs on bright stars. Both star images are then recorded simultaneously on the spectrograph slit, so that two stellar components will appear on each spectrogram.

Solar Corona Investigation by the Coronal Line Photometer at Lomnický Peak

1994 ◽  
Vol 144 ◽  
pp. 431-434
Author(s):  
M. Minarovjech ◽  
M. Rybanský
Keyword(s):  
Solar Corona ◽  
Time Resolution ◽  
Active Regions ◽  
High Time ◽  
High Time Resolution ◽  
List Type ◽  
Type Number ◽  
Coronal Line ◽  
Global Cycle

AbstractThis paper deals with a possibility to use the ground-based method of observation in order to solve basic problems connected with the solar corona research. Namely:1.heating of the solar corona2.course of the global cycle in the corona3.rotation of the solar corona and development of active regions.There is stressed a possibility of high-time resolution of the coronal line photometer at Lomnický Peak coronal station, and use of the latter to obtain crucial observations.

Models of Cataclysmic Variables from Photometric and Spectroscopic Data

1979 ◽  
Vol 46 ◽  
pp. 65-74 ◽  
Author(s):  
A.C. Fabian ◽  
J.E. Pringle ◽  
J.A.J. Whelan ◽  
J.A. Bailey
Keyword(s):  
Spectroscopic Data ◽  
Cataclysmic Variables ◽  
System Parameters ◽  
Dwarf Nova ◽  
Spectroscopic Observations ◽  
Photometric And Spectroscopic Observations

Abstract.Recent photometric and spectroscopic observations of the dwarf nova system Z Cha are discussed. Methods for constraining the system parameters are applied and the disc emissivity is deduced as a function of radius. Indications are found that the disc shrinks in size with increasing time after outburst.

High dispersion spectroscopic observations of Venus near superior conjunction IV. Results for the carbon dioxide bands in the IV-N photographic region

Icarus ◽  
1980 ◽  
Vol 41 (2) ◽  
pp. 309-311 ◽  
Author(s):  
L.D.G. Young ◽  
R.A.J. Schorn ◽  
A.T. Young
Keyword(s):  
Carbon Dioxide ◽  
High Dispersion ◽  
Spectroscopic Observations

First X-ray Spectroscopic Observations of Atmospheric Titanium Species: Size Dependence and the Emission Source

2021 ◽  
Author(s):  
Kohei Sakata ◽  
Yoshio Takahashi ◽  
Shotaro Takano ◽  
Atsushi Matsuki ◽  
Aya Sakaguchi ◽  
...  
Keyword(s):  
Size Dependence ◽  
Emission Source ◽  
X Ray ◽  
Spectroscopic Observations

scholarly journals Probing the 2-D kinematic structure of early-type galaxies out to 3 effective radii

2009 ◽  
Vol 5 (H15) ◽  
pp. 67-67
Author(s):  
Robert N. Proctor ◽  
Duncan A. Forbes ◽  
Aaron J. Romanowsky ◽  
Jean P. Brodie ◽  
Jay Strader ◽  
...  
Keyword(s):  
Velocity Dispersion ◽  
Rotation Velocity ◽  
New Technique ◽  
Kinematic Structure ◽  
Early Type ◽  
Spectroscopic Observations ◽  
Velocity Moments

We detail an innovative new technique for measuring the 2-D velocity moments (rotation velocity, velocity dispersion and Gauss-Hermite coefficients h3 and h4) using spectra from Keck DEIMOS multi-object spectroscopic observations. The data are used to reconstruct 2-D rotation velocity maps.

scholarly journals X-Ray Coronae from Stars

1998 ◽  
Vol 188 ◽  
pp. 13-16
Author(s):  
R. Pallavicini
Keyword(s):  
Open Clusters ◽  
Temperature Structure ◽  
List Type ◽  
Star Forming ◽  
Spectroscopic Observations ◽  
Star Forming Regions ◽  
Complete Mapping ◽  
Sky Survey ◽  
Order Of Magnitude ◽  
Age Range

A number of major advances in stellar coronal physics have occurred since 1990 mainly as a consequence of imaging observations by ROSAT and spectroscopic observations by ASCA. These can be summarised as follows: 1.an all-sky survey has been performed by ROSAT at a sensitivity of ~ 2 × 10−13 erg cm−2 s−1, complemented by pointed observations an order of magnitude deeper;2.complete mapping and deeper pointings have been obtained for virtually all open clusters closer than ~ 500 pc, and covering the age range from ~ 30 Myr to ~ 700 Myr;3.complete mapping and deeper paintings have been obtained for several Star Forming Regions (SFRs) covering the age range ~ 1 to ~ 10 Myr;4.spectroscopic observations of bright coronal sources have been obtained with EUVE and ASCA allowing the derivation of the temperature structure and elemental abundances.

Spatially resolved spectroscopic observations of Jupiter during the 1987 opposition

1989 ◽  
Vol 46 (3) ◽  
pp. 207-219 ◽  
Author(s):  
F. Moreno ◽  
A. Molina
Keyword(s):  
Spectroscopic Observations ◽  
Spatially Resolved
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