Emission-Line Imaging of QSO[CLC]s[/CLC] with High Resolution

2001 ◽  
Vol 121 (1) ◽  
pp. 80-89 ◽  
Author(s):  
J. B. Hutchings ◽  
S. L. Morris ◽  
D. Crampton
2003 ◽  
Vol 406 (1) ◽  
pp. 141-148 ◽  
Author(s):  
K. J. van der Heyden ◽  
J. A. M. Bleeker ◽  
J. S. Kaastra ◽  
J. Vink

1994 ◽  
Vol 144 ◽  
pp. 541-547
Author(s):  
J. Sýkora ◽  
J. Rybák ◽  
P. Ambrož

AbstractHigh resolution images, obtained during July 11, 1991 total solar eclipse, allowed us to estimate the degree of solar corona polarization in the light of FeXIV 530.3 nm emission line and in the white light, as well. Very preliminary analysis reveals remarkable differences in the degree of polarization for both sets of data, particularly as for level of polarization and its distribution around the Sun’s limb.


2003 ◽  
Vol 209 ◽  
pp. 277-278
Author(s):  
P. J. Huggins ◽  
T. Forveille ◽  
R. Bachiller ◽  
P. Cox

We report high resolution CO (1–0) line imaging of a prominent cometary globule in the Helix Nebula. The results confirm earlier observations (Huggins et al. 1992) that globules consist of dense condensations of neutral gas embedded in the ionized nebula, and they provide new constraints on the structure and kinematics of the gas.


2004 ◽  
Vol 190 ◽  
pp. 251-257 ◽  
Author(s):  
A. Staude ◽  
A. D. Schwope ◽  
P. Hedelt ◽  
A. Rau ◽  
R. Schwarz

AbstractWe present optical high-resolution spectroscopy of AM Her and QQ Vul. Making use of indirect imaging techniques (Doppler and Roche tomography), we are able to make details visible, which a model of these systems has to be able to account for. Especially the emission line data cannot be explained by current models of polars.


1987 ◽  
Vol 139 (2) ◽  
pp. 327-335
Author(s):  
D. P. K. Banerjee ◽  
B. G. Anandarao ◽  
J. N. Desai ◽  
N. S. Jog ◽  
P. K. Kikani ◽  
...  

1996 ◽  
Vol 467 ◽  
pp. 197 ◽  
Author(s):  
John S. Mulchaey ◽  
Andrew S. Wilson ◽  
Zlatan Tsvetanov

1995 ◽  
Vol 99 ◽  
pp. 27 ◽  
Author(s):  
Patrick J. McCarthy ◽  
Hyron Spinrad ◽  
Wil van Breugel

1997 ◽  
Vol 180 ◽  
pp. 237-237
Author(s):  
T.M. Hodge ◽  
C.E. Woodward ◽  
D.M. Kelly ◽  
J. Fischer ◽  
M. A. Greenhouse ◽  
...  

Spatial studies of the emission line regions in planetary nebulae (PN) can provide insight into the physical and chemical environments across the nebulae. In a collaborative effort by the coauthors, a K-band Fabry-Perot etalon has been coupled with an advanced 256 × 256 InSb focal plane array at the Wyoming Infrared Observatory 2.3m telescope. This system permits us to obtain spatially resolved, 0.24″/pixel, moderate spectral resolution (R ≈ 800), flux-density IR emission line images of astronomical sources. We obtained continuum-subtracted images of Br γ, HeI 2.06 μm, the 2-μm UIR features, and the 3.3 μm PAH dust feature in the PN NGC 6572, NGC 7027, and NGC 7662. One objective was to determine the spatial morphology of two unidentified emission lines, UIR1−2.199 μm, and UIR2−2.287 μm (Geballe et al. 1991). These UIR lines appear in the spectra of many PN (Hora et al. 1997) and in the Orion Nebula (Luhman & Rieke 1996). Geballe et al. suggested that the UIR lines are most likely forbidden transitions and showed that the parent ion ionization potential is ≈ 30–40 eV, while the ionization potential for the ions themselves is 40–60 eV. Here we directly compare the distribution of the UIR emitters to that of the gas (H+,He+) and dust (PAHs).


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