Supernovae and Supernova Remnants: The Big Picture in Low Resolution

2017 ◽  
pp. 3-28
Author(s):  
Athem W. Alsabti ◽  
Paul Murdin
Keyword(s):  
Supernova Remnants ◽  
Supernovae And Supernova Remnants ◽  
Low Resolution ◽  
Big Picture

Getting the Big Picture on Small Screens

2011 ◽  
pp. 31-46 ◽  
Author(s):  
Hendrik Knoche ◽  
M. Angela Sasse
Keyword(s):  
Quality Of Experience ◽  
Current Knowledge ◽  
Empirical Studies ◽  
Key Factors ◽  
Low Resolution ◽  
Mobile Tv ◽  
Technical Performance ◽  
Number Of Factors ◽  
Big Picture

This chapter provides an overview of the key factors that influence the quality of experience (QoE) of mobile TV services. It compiles the current knowledge from empirical studies and recommendations on four key requirements for the uptake of mobile TV services: (1) handset usability and its acceptance by the user, (2) the technical performance and reliability of the service, (3) the usability of the mobile TV service (depending on the delivery of content), and (4) the satisfaction with the content. It illustrates a number of factors that contribute to these requirements ranging from the context of use to the size of the display and the displayed content. The chapter highlights the interdependencies between these factors during the delivery of content in mobile TV services to a heterogeneous set of low resolution devices.

scholarly journals Long Slit Echelle Spectroscopy of Supernova Remnants in M33

1988 ◽  
Vol 101 ◽  
pp. 193-196
Author(s):  
William P. Blair ◽  
You-Hua Chu ◽  
Robert C. Kennicutt
Keyword(s):  
Supernova Remnants ◽  
Low Resolution ◽  
Low Velocity ◽  
Line Intensities ◽  
Echelle Spectroscopy ◽  
Resolution Data

AbstractWe have obtained long slit echelle spectroscopy for 10 of the brightest supernova remnants in M33 using the KPNO 4 m telescope. The profiles at Hα indicate bulk motions in the range 100–350 km s−1 in these remnants. Nearly all of the objects show signs of contamination by low velocity H II emission at some level. This affects the line intensities measured from low resolution data and may affect diameter measurements of these remnants.

scholarly journals Fast-Expanding Hi Shells Associated with Supernova Remnants in the I-GALFA Survey

2013 ◽  
Vol 9 (S296) ◽  
pp. 386-387
Author(s):  
Geumsook Park ◽  
Bon-Chul Koo ◽  
Steven J. Gibson ◽  
Ji-hyun Kang
Keyword(s):  
Physical Properties ◽  
Survey Data ◽  
Supernova Remnants ◽  
Good Sensitivity ◽  
Velocity Range ◽  
Statistical Nature ◽  
Low Resolution ◽  
Excess Emission ◽  
L Band ◽  
Hi Shells

AbstractWe examine excess emission at high positive and negative velocities toward known Galactic supernova remnants (SNRs) in the “Inner-Galaxy Arecibo L-band Feed Array (I-GALFA)” Hi 21-cm survey data. The I-GALFA survey covers ℓ = 32° to 77°, and has a velocity range of ±700 km s−1 with high angular and velocity resolutions (4′ and 0.18 km s−1, respectively) and good sensitivity (0.2 K). The excess emission which is thought to be part of a fast-expanding Hi shell of a SNR is detected from four among 39 SNRs in the I-GALFA area: W44, G54.4–0.3, W51C, and CTB 80. Although the Hi shells of the four SNRs were already reported in low-resolution studies, the first detection of both sides of an expanding Hi shell associated with W44 is very inspiring. We discuss physical properties of these four SNRs and their statistical nature.

Line γ-ray emission from supernovae and supernova remnants

2000 ◽  
Vol 25 (3-4) ◽  
pp. 699-702 ◽  
Author(s):  
S. Kumagai ◽  
K. Iwabuchi ◽  
K. Nomoto
Keyword(s):  
Supernova Remnants ◽  
Supernovae And Supernova Remnants ◽  
Γ Ray
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