The Effect of Enhanced Core Masses on the Observed Morphology of Young Clusters

Author(s):  
Cole Johnston
Keyword(s):  
2000 ◽  
Vol 119 (4) ◽  
pp. 1839-1847 ◽  
Author(s):  
Guillermo Gonzalez ◽  
George Wallerstein

2009 ◽  
Vol 5 (S268) ◽  
pp. 339-340
Author(s):  
Sushma V. Mallik ◽  
Suchitra C. Balachandran ◽  
David L. Lambert

AbstractAs a sequel to the Li observations by Balachandran, Lambert & Stauffer (1988, 1996) in 35 stars of the 50 Myr old cluster α Persei, we have obtained and analyzed high resolution spectra of another 51 stars. Following a reconsideration of the cluster membership of the stars (Prosser 1992, Makarov 2006, Mermilliod et al. 2008, and Patience et al. 2002), we discuss the Li abundances for 70 stars. With our larger sample, we reexamine the question of whether the scatter in Li abundance at a given Teff seen in young clusters at cool temperatures is real or not.


2015 ◽  
Vol 12 (S316) ◽  
pp. 137-138
Author(s):  
Guido De Marchi ◽  
Nino Panagia ◽  
Elena Sabbi

Up to ages of ~ 100 Myr, massive clusters are still swamped in large amounts of gas and dust, with considerable and uneven levels of extinction. At the same time, large grains (ices?) produced by type II supernovae profoundly alter the interstellar medium (ISM), thus resulting in extinction properties very different from those of the diffuse ISM. To obtain physically meaningful parameters of stars, from basic luminosities and effective temperatures to masses and ages, we must understand and measure the local extinction law. This problem affects all the massive young clusters discussed in his volume.


2010 ◽  
Vol 511 ◽  
pp. A23 ◽  
Author(s):  
S. Perina ◽  
J. G. Cohen ◽  
P. Barmby ◽  
M. A. Beasley ◽  
M. Bellazzini ◽  
...  
Keyword(s):  
M 31 ◽  

1991 ◽  
pp. 478-479
Author(s):  
L. Grondin ◽  
S. Demers ◽  
W. E. Kunkel ◽  
M. J. Irwin

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