scholarly journals Radio continuum study of the large Magellanic cloud: SNR J0519-6926

2008 ◽  
pp. 59-63 ◽  
Author(s):  
E.J. Crawford ◽  
M.D. Filipovic ◽  
J.L. Payne

We present the results of new high resolution ATCA observations of SNR J0519-6926. We found that this SNR exhibits a typical 'horseshoe' appearance with ?=-0.55?0.08 and D=28?1 pc. No polarization (or magnetic fields) were detected to a level of 1%. This is probably due to a relatively poor sampling of the UV plane caused be observing in 'snap-shot' mode.

1993 ◽  
Vol 157 ◽  
pp. 317-319
Author(s):  
Richard Wielebinski

New radio continuum surveys allowed the determination of the magnetic field in the Large Magellanic Cloud. The magnetic field is filamentary, extending to the south of the 30 Doradus nebula. Some possible explanations for this unusual morphology are discussed.


1991 ◽  
Vol 148 ◽  
pp. 415-420 ◽  
Author(s):  
R. S. Booth ◽  
Th. De Graauw

In this short review we describe recent new observations of millimetre transitions of molecules in selected regions of the Magellanic Clouds. The observations were made using the Swedish-ESO Submillimetre Telescope, SEST, (Booth et al. 1989), the relatively high resolution of which facilitates, for the first time, observations of individual giant molecular clouds in the Magellanic Clouds. We have mapped the distribution of the emission from the two lowest rotational transitions of 12CO and 13CO and hence have derived excitation conditions for the molecule. In addition, we have observed several well-known interstellar molecules in the same regions, thus doubling the number of known molecules in the Large Magellanic Cloud (LMC). The fact that all the observations have been made under controlled conditions with the same telescope enables a reasonable intercomparison of the molecular column densities. In particular, we are able to observe the relative abundances among the different isotopically substituted species of CO.


1991 ◽  
Vol 148 ◽  
pp. 351-352
Author(s):  
W. A. Lawson ◽  
P. L. Cottrell ◽  
K. R. Pollard

Over the last several years we have obtained photometric observations of the four suspected (W Men, HV 5637, HV 12671, HV 12842) R Coronae Borealis (RCB) stars in the Large Magellanic Cloud (LMC). Fourier analyses of the light curves has revealed some periodicity in HV 12842, where there appear to be at least two closely spaced periods of 55 and 60 d. High resolution spectra of HV 12842, obtained with the Ango-Australian Telescope (AAT), indicate that it has similar atmospheric properties to a number of warmer galactic RCB and hydrogen-deficient Carbon (HdC) stars, e.g. R CrB, RY Sgr and XX Cam.


2008 ◽  
pp. 61-66 ◽  
Author(s):  
E.J. Crawford ◽  
M.D. Filipovic ◽  
Horta de ◽  
F.H. Stootman ◽  
J.L. Payne

We present the results of new moderate resolution ATCA observations of SNR J0455-6838. We found that this SNR exhibits a mostly typical appearance with rather steep and curved ?=-0.81?0.18 and D=43?31?1 pc. Regions of high polarization were detected, including unusually strong (~70%) region corresponding to the northern breakout. Such a strong polarization in breakout regions has not been observed in any other SNR.


2008 ◽  
Vol 25 (3) ◽  
pp. 138-148 ◽  
Author(s):  
Chiara Mastropietro ◽  
Andreas Burkert ◽  
Ben Moore

AbstractWe use high-resolution n-body/SPH simulations to study the hydrodynamical interaction between the Large Magellanic Cloud and the hot halo of the Milky Way. We investigate whether the ram-pressure acting on the gaseous disk of the satellite can explain the peculiarities observed in the Hidistribution and the location of the recent star formation activity.


2002 ◽  
Vol 124 (6) ◽  
pp. 3241-3254 ◽  
Author(s):  
Verne V. Smith ◽  
Kenneth H. Hinkle ◽  
Katia Cunha ◽  
Bertrand Plez ◽  
David L. Lambert ◽  
...  

1992 ◽  
Vol 395 ◽  
pp. L103 ◽  
Author(s):  
P. A. Caraveo ◽  
G. F. Bignami ◽  
S. Mereghetti ◽  
M. Mombelli

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