H I aperture synthesis observations towards galactic H II regions – III. W58

1981 ◽  
Vol 195 (2) ◽  
pp. 371-386 ◽  
Author(s):  
P. L. Read
Keyword(s):  
Aperture Synthesis ◽  
H Ii Regions

scholarly journals Recent Radio Observations of Galactic H ii regions

1974 ◽  
Vol 60 ◽  
pp. 195-218
Author(s):  
E. Churchwell
Keyword(s):  
Energy Balance ◽  
Aperture Synthesis ◽  
Small Scale ◽  
H Ii Regions ◽  
Recombination Line ◽  
Radio Observations ◽  
Synthesis Techniques ◽  
Radio Recombination Line ◽  
Intermediate Size

The structure and physics of Hiiregions are reviewed. The discussion is principally based on the radio mapping of intermediate-size Hiiregions to measure the energy balance, the mapping of small-scale structure by aperture-synthesis techniques to define the ionization conditions, and determination of helium abundances from radio recombination-line observations of H and He in Hiiregions.

Aperture synthesis in optics

1974 ◽  
Vol 114 (12) ◽  
pp. 655 ◽  
Author(s):  
V.N. Sintsov ◽  
A.F. Zapryagaev
Keyword(s):  
Aperture Synthesis

APERTURE SYNTHESIS OF SURFACE IMAGES USING ACTIVE REMOTE SENSING WITH ULTRA-WIDEBAND STOCHASTIC SIGNALS

2020 ◽  
Vol 79 (15) ◽  
pp. 1327-1347
Author(s):  
M. V. Nechyporuk ◽  
V. V. Pavlikov ◽  
A. D. Sobkolov ◽  
E. O. Tserne ◽  
Valerii K. Volosyuk ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Aperture Synthesis ◽  
Ultra Wideband ◽  
Stochastic Signals ◽  
Surface Images

scholarly journals Variable Radio Emission from X-Ray Sources

1971 ◽  
Vol 15 ◽  
pp. 173-175 ◽  
Author(s):  
L. L. E. Braes ◽  
G. K. Miley
Keyword(s):  
Radio Emission ◽  
Aperture Synthesis ◽  
Electromagnetic Spectrum ◽  
Radio Telescopes ◽  
Low Resolution ◽  
X Ray ◽  
Synthesis Technique ◽  
Variable Radio

Dr. KELLOGG has just described some exciting new observations of X-ray sources made with the UHURU satellite. We shall now move some nine orders of magnitude in wavelength to the opposite end of the electromagnetic spectrum and report measurements of weak radio emission from some of the objects he mentioned. For the detection of weak sources most radio telescopes are not noise limited, but are confusion limited by their low resolution. The aperture synthesis technique minimizes this problem because it enables one to pinpoint the position of weak sources to the order of one second of arc.

The DIVING3D Project: Analysis of the nuclear region of Early-type Galaxies

2020 ◽  
Vol 15 (S359) ◽  
pp. 454-456
Author(s):  
T. V. Ricci ◽  
J. E. Steiner ◽  
R. B. Menezes
Keyword(s):  
Emission Lines ◽  
H Ii Regions ◽  
Sample Type ◽  
Early Type ◽  
Integral Field Spectroscopy ◽  
Project Analysis ◽  
Line Region ◽  
Field Unit ◽  
Integral Field

AbstractIn this work, we present preliminary results regarding the nuclear emission lines of a statistically complete sample of 56 early-type galaxies that are part of the Deep Integral Field Spectroscopy View of Nuclei of Galaxies (DIVING3D) Project. All early type galaxies (ETGs) were observed with the Gemini Multi-Object Spectrograph Integral Field Unit (GMOS-IFU) installed on the Gemini South Telescope. We detected emission lines in 93% of the sample, mostly low-ionization nuclear emission-line region galaxies (LINERs). We did not find Transition Objects nor H II regions in the sample. Type 1 objects are seen in ∼23% of the galaxies.

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