Contamination Effects on the Passive Optical Sample Assembly Experiments

2000 ◽  
Vol 37 (5) ◽  
pp. 567-572 ◽  
Author(s):  
H. Gary Pippin ◽  
Suzanne L. B. Woll ◽  
Valerie A. Loebs ◽  
Gail Bohnhoff-Hlavacek
Keyword(s):  
Sample Assembly ◽  
Optical Sample ◽  
Contamination Effects

Contamination effects on the Passive Optical Sample Assembly Experiments

2000 ◽  
Author(s):  
Gail Bohnhoff-Hlavacek ◽  
H. Pippin ◽  
Suzanne Woll ◽  
Valerie Loebs
Keyword(s):  
Sample Assembly ◽  
Optical Sample ◽  
Contamination Effects

scholarly journals The Passive Optical Sample Assembly (POSA)-I experiment - First flight results and conclusions

1999 ◽  
Author(s):  
James Zwiener ◽  
Rachel Kamenetzky ◽  
Jason Vaughn ◽  
Miria Finckenor
Keyword(s):  
Sample Assembly ◽  
Optical Sample

Contamination observed on the Passive Optical Sample Assembly-I (POSA-I) experiment

1998 ◽  
Author(s):  
James M. Zwiener ◽  
Rachel R. Kamenetzky ◽  
Jason A. Vaughn ◽  
Miria M. Finckenor
Keyword(s):  
Sample Assembly ◽  
Optical Sample

scholarly journals New optically identified supernova remnants in the Large Magellanic Cloud

2020 ◽  
Vol 500 (2) ◽  
pp. 2336-2358
Author(s):  
Miranda Yew ◽  
Miroslav D Filipović ◽  
Milorad Stupar ◽  
Sean D Points ◽  
Manami Sasaki ◽  
...  
Keyword(s):  
Supernova Remnants ◽  
Supernova Remnant ◽  
Narrow Band Imaging ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Main Body ◽  
Found Objects ◽  
Type Ia ◽  
Optical Sample

ABSTRACT We present a new optical sample of three Supernova Remnants (SNRs) and 16 Supernova Remnant (SNR) candidates in the Large Magellanic Cloud (LMC). These objects were originally selected using deep H α, [S ii], and [O iii] narrow-band imaging. Most of the newly found objects are located in less dense regions, near or around the edges of the LMC’s main body. Together with previously suggested MCSNR J0541–6659, we confirm the SNR nature for two additional new objects: MCSNR J0522–6740 and MCSNR J0542–7104. Spectroscopic follow-up observations for 12 of the LMC objects confirm high [S ii]/H α emission-line ratios ranging from 0.5 to 1.1. We consider the candidate J0509–6402 to be a special example of the remnant of a possible type Ia Supernova (SN) which is situated some 2° (∼1.75 kpc) north from the main body of the LMC. We also find that the SNR candidates in our sample are significantly larger in size than the currently known LMC SNRs by a factor of ∼2. This could potentially imply that we are discovering a previously unknown but predicted, older class of large LMC SNRs that are only visible optically. Finally, we suggest that most of these LMC SNRs are residing in a very rarefied environment towards the end of their evolutionary span where they become less visible to radio and X-ray telescopes.

The Metamorphosed Limestones and Associated Contaminated Igneous Rocks of the Carlingford District, Co. Louth

1932 ◽  
Vol 69 (5) ◽  
pp. 209-233 ◽  
Author(s):  
G. D. Osborne
Keyword(s):  
Igneous Rocks ◽  
The South ◽  
Ordnance Survey ◽  
Igneous Complex ◽  
North East ◽  
The North ◽  
South West ◽  
Carboniferous Limestone ◽  
Contamination Effects

THE Carlingford-Barnave district falls within the boundaries of Sheet 71 of the Ordnance Survey of Ireland, and forms part of a broad promontory lying between Carlingford Lough on the north-east and Dundalk Bay on the south-west. The greater part of this promontory is made up of an igneous complex of Tertiary age which has invaded the Silurian slates and quartzites and the Carboniferous Limestone Series. This complex has not yet been investigated in detail, but for the purposes of the present paper certain references to it are necessary, and these are made below. The prevalence of hybrid-relations and contamination-effects between the basic and acid igneous rocks of the region is a very marked feature, and because of this it has been difficult at times to decide which types have been responsible for the various stages of the metamorphism.

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