Hot Evolved Objects in Different Parent Galaxies: The Stellar Winds of Three Planetary Nebula Nuclei in the Large Magellanic Cloud

1997 ◽  
Vol 480 (1) ◽  
pp. 290-296 ◽  
Author(s):  
Luciana Bianchi ◽  
Emanuel Vassiliadis ◽  
Michael Dopita
Keyword(s):  
Planetary Nebula ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Stellar Winds

scholarly journals Mass loss processes in hot evolved stars: Planetary Nebula nuclei in the large Magellanic Cloud

1997 ◽  
Vol 180 ◽  
pp. 470-470
Author(s):  
L. Bianchi ◽  
E. Vassiliadis ◽  
M. A. Dopita
Keyword(s):  
Mass Loss ◽  
Planetary Nebula ◽  
Strong Dependence ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Stellar Winds ◽  
Element Abundances ◽  
Model Predictions ◽  
Nearby Galaxies ◽  
Ngc 6822

As part of a broad study of stellar winds in different galaxies, to establish observational constraints on the influence of metallicity on the mass loss process, we investigate the winds of planetary nebula (PN) nuclei in the Large Magellanic Cloud. Theoretically, the radiation pressure mechanism implies a strong dependence of the wind acceleration on the element abundances. Observationally, model predictions have been tested using Pop. I stars in the Magellanic Clouds (Puls et al. 1996, A&A, 305, 171) and massive stars in the nearby galaxies M31, M33 and NGC 6822 (Bianchi et al. 1996, AJ, 111, 2303; Bianchi et al. 1996, in prep.). We now extend this investigation to low luminosity, evolved objects.

Spitzer Infrared Spectrograph (IRS) Observations of Large Magellanic Cloud Planetary Nebula SMP 83

2004 ◽  
Vol 154 (1) ◽  
pp. 271-274 ◽  
Author(s):  
J. Bernard‐Salas ◽  
J. R. Houck ◽  
P. W. Morris ◽  
G. C. Sloan ◽  
S. R. Pottasch ◽  
...  
Keyword(s):  
Planetary Nebula ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud

scholarly journals A More Complete Listing of LMC Planetary Nebulae

1984 ◽  
Vol 108 ◽  
pp. 231-232
Author(s):  
N. Sanduleak
Keyword(s):  
Planetary Nebula ◽  
Planetary Nebulae ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Plate Material ◽  
Schmidt Telescope ◽  
Complete Listing ◽  
Objective Prism

In an earlier paper by Sanduleak et al. (1978) a listing was given of 102 confirmed and probable planetary nebulae in the Large Magellanic Cloud detected on objective-prism plates taken with the Curtis Schmidt telescope at Cerro Tololo. Subsequently, deeper coverage was obtained on nitrogen-baked Kodak IIIa-J plates plus GG 455 filter exposed for 90 minutes. The thin prism was again used to provide a dispersion of about 1500 Å mm−1 at Hβ and the spectra were unwidened. An additional 25 planetary nebula candidates were found on this new plate material to show the requisite characteristics, i.e. they display (a) a stellar appearance, (b) [OIII] λλ5007, 4959 strongly in emission, and (c) no evidence of a continuum.

Massive Binaries in the Magellanic Clouds

2005 ◽  
Vol 13 ◽  
pp. 463-463
Author(s):  
Virpi S. Niemela
Keyword(s):  
Binary Stars ◽  
Present Status ◽  
Binary Systems ◽  
Massive Stars ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Magellanic Clouds ◽  
Stellar Winds ◽  
Multiple Systems ◽  
Orbital Parameters

We present results of our ongoing observing program on search and studies of massive stars (O and WR type) in binary systems in our neighbor galaxies, the Magellanic Clouds. Radial velocity orbits are presented for two new binaries, one in the Small Magellanic Cloud and another in the Large Magellanic Cloud, and improved orbits for previously known systems. We compare orbital parameters of selected binaries containing O and WR type components. We also discuss the present status of knowledge for massive binary stars in the Magellanic Clouds and the problems encountered in their orbital studies such as stellar winds the ubiquitous tendency to be born in multiple systems.

Large Magellanic Cloud Planetary Nebula Morphology: Probing Stellar Populations and Evolution

2000 ◽  
Vol 534 (2) ◽  
pp. L167-L171 ◽  
Author(s):  
Letizia Stanghellini ◽  
Richard A. Shaw ◽  
Bruce Balick ◽  
J. Chris Blades
Keyword(s):  
Planetary Nebula ◽  
Stellar Populations ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud

scholarly journals Stochastic Starformation and Bubbles in the Large Magellanic Cloud

1984 ◽  
Vol 108 ◽  
pp. 89-90
Author(s):  
J. V. Feitzinger
Keyword(s):  
Interstellar Medium ◽  
Radiation Pressure ◽  
Hii Regions ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Shell Structures ◽  
Stellar Winds ◽  
Bubble Structure ◽  
Ring Nebulae

Nearly all places in the LMC where ring nebulae or shell structures in the neutral or ionized interstellar medium are observed, an OB association and/or WR-stars can be located (Braunsfurth, Feitzinger, 1983). Several mechanisms have been propsoed to generate shell or bubble structures: stellar winds, supernovae explosions, evolving HII regions, sequential starformation, collapsing hydrogen clouds interacting with stellar winds and radiation pressure. Ordered motions resulting in a shell or bubble structure are the result of almost any point like energy injection into the interstellar medium. Therefore all the mechanisms result in similar morphological structures, thus similar shapes can have heterogeneous origins.

scholarly journals SMC 1 or What's in a Name?

1999 ◽  
Vol 190 ◽  
pp. 17-18
Author(s):  
Hélène R. Dickel
Keyword(s):  
Planetary Nebula ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Web Documents

What's in a name? Everything! SMC 1 is a planetary nebula in the Large Magellanic Cloud! URLs of Web documents are given to aid astronomers in designating their astronomical sources so as to avoid confusion in the literature.

scholarly journals Obscuring Supersoft X-ray Sources in Stellar Winds

2011 ◽  
Vol 7 (S281) ◽  
pp. 140-144
Author(s):  
Mikkel T. B. Nielsen ◽  
Carsten Dominik ◽  
Gijs Nelemans
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Stellar Winds ◽  
X Ray ◽  
Circumstellar Material

AbstractWe investigate the possibility of obscuring supersoft X-ray sources in the winds of companion stars. We derive limits on the amount of circumstellar material needed to fully obscure a ‘canonical’ supersoft X-ray source in the Large Magellanic Cloud, as observed with the Chandra X-ray Observatory.

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