scholarly journals On the upper limit on stellar masses in the Large Magellanic Cloud cluster R136

2006 ◽  
Vol 365 (2) ◽  
pp. 590-594 ◽  
Author(s):  
C. Koen
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Upper Limit ◽  
Cloud Cluster ◽  
Stellar Masses

scholarly journals An Upper Limit on the Mass of a Central Black Hole in the Large Magellanic Cloud from the Stellar Rotation Field

2017 ◽  
Vol 846 (1) ◽  
pp. 14 ◽  
Author(s):  
H. Boyce ◽  
N. Lützgendorf ◽  
R. P. van der Marel ◽  
H. Baumgardt ◽  
M. Kissler-Patig ◽  
...  
Keyword(s):  
Black Hole ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Stellar Rotation ◽  
Central Black Hole ◽  
Upper Limit ◽  
Rotation Field

The Age of the Large Magellanic Cloud Cluster NGC 1651

1997 ◽  
Vol 483 (1) ◽  
pp. L41-L44 ◽  
Author(s):  
Jeremy R. Mould ◽  
Mingsheng Han ◽  
Peter B. Stetson ◽  
Brad Gibson ◽  
John A. Graham ◽  
...  
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Cloud Cluster

scholarly journals Theoretical fit of Cepheid light and radial velocity curves in the Large Magellanic Cloud cluster NGC 1866

2012 ◽  
Vol 428 (3) ◽  
pp. 2185-2197 ◽  
Author(s):  
M. Marconi ◽  
R. Molinaro ◽  
V. Ripepi ◽  
I. Musella ◽  
E. Brocato
Keyword(s):  
Radial Velocity ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Cloud Cluster

Cepheid Variables in the Large Magellanic Cloud Cluster NGC 1866. I. New BVRI CCD Photometry

2000 ◽  
Vol 129 (1) ◽  
pp. 111-121 ◽  
Author(s):  
Wolfgang P. Gieren ◽  
Matias Gomez ◽  
Jesper Storm ◽  
Thomas J. Moffett ◽  
L. Infante ◽  
...  
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Ccd Photometry ◽  
Cloud Cluster ◽  
Cepheid Variables

The Kinematics and Age of the Planetary Nebulae in the Large Magellanic Cloud

1986 ◽  
Vol 6 (4) ◽  
pp. 464-467 ◽  
Author(s):  
Stephen J. Meatheringham ◽  
Michael A. Dopita
Keyword(s):  
Rotation Curve ◽  
Velocity Dispersion ◽  
Transverse Velocity ◽  
Planetary Nebulae ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Upper Limit ◽  
Mass Estimate ◽  
Remnant Mass

AbstractAn HI survey of the Large Magellanic Cloud (LMC) has been reanalyzed to find the transverse velocity of the LMC, and derive an upper limit of 4.5 × 1011M⊙for the mass of our Galaxy out to 50 kpc. A rotation curve is derived for the LMC from the HI data giving a best mass estimate of (4.0±0.4)×109M⊙. Velocity observations of 97 planetary nebulae (PN) in the Large Cloud are used to compare the old and young components. Our results are found to be at odds with an earlier sample of 9 old clusters, which is interpreted as being due to the low number of objects in that sample. The w-component of velocity dispersion of the PN population is 35 km s-1and that of the HI 10 km s-1. If this difference is a result of stellar diffusion then the average age of the PN population is 1.3 × 109yr, implying a precursor mass of 1.8 M⊙and a remnant mass of 0.63 M⊙.

ON THE SUPERSTRING AXION MINI-STAR

1998 ◽  
Vol 13 (13) ◽  
pp. 1007-1017 ◽  
Author(s):  
M. D. POLLOCK
Keyword(s):  
Gravitational Collapse ◽  
Mass Formula ◽  
Decay Constant ◽  
Gravitational Constant ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Planck Mass ◽  
Upper Limit ◽  
Axion Decay Constant ◽  
Axion Decay

The theory of the pressure-free-boson mini-star of mass M, whose radius r=2GM/v2 is equated via the indeterminacy principle to ℏ/mv, where [Formula: see text] is the Newton gravitational constant, M P being the Planck mass and m the mass of the boson, travelling at velocity v, is applied to the superstring axion. For a bounded object, the upper limit to the axion potential [Formula: see text] constrains the axions to move at non-relativistic velocities [Formula: see text] where [Formula: see text] GeV is the axion decay constant, predicting the existence of an axion mini-star of mass [Formula: see text]. Such objects can in principle form by gravitational collapse below the temperature T≈100 eV, and are tentatively identified with the microlensing objects recently detected in our Galaxy and in the direction of the Large Magellanic Cloud.

The distance to the Large Magellanic Cloud cluster NGC 1866 from its Cepheid members

1994 ◽  
Vol 433 ◽  
pp. L73 ◽  
Author(s):  
Wolfgang P. Gieren ◽  
Tom Richtler ◽  
Michael Hilker
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Cloud Cluster
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