OPEN STAR CLUSTER M11
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Transcript OPEN STAR CLUSTER M11
OPEN STAR
CLUSTER M11
Rosalina Bonilla
Jennifer Hsieh
Mary Lou Juanatas
Cluster 7: Stars, Sight, and
Science
OUTLINE
Background of Star Clusters
Description of project
Messier 11
Ideal Gas Law
Star Formation
Stellar Evolution
Observation & data collection of M11
Data analysis
Results & conclusions
What are open star clusters?
Group of stars born
at the same time
Cluster contains Hot
Young stars
Found in the disk of
spiral galaxies
Metallicity – how much
heavy elements are in the
object
Open cluster have lots of
metals
MAIN OBJECTIVES
How
old is M11?
How do we know?
Why does it matter?
Fun Facts about M11
Nick Name: The Wild Duck Cluster
One of the richest and most compact of
open cluster
Discovered in 1681 by Gottfriend Kirch
3000 stars
Ideal Gas Law
P= pressure
V= volume
n= number of particles
T= temperature
R= gas constant
P V= n RT
Star Formation
Protostar – dust and
gas collapses under
gravity
Pressure balances
the forces of gravity
Molecules in the
protostar radiate
allowing it to shrink
Stellar Structure/Evolution
Main sequence –
hydrogen fuses into
helium in the core
Red giants swell up,
causing the outer
layers to cool which
makes them red
This happens when
the core runs out of
hydrogen
OBSERVATION
DATA ANALYSIS
CONCLUSION
M11 is 90 million years old with an ± of 10
million years
Using the isoplot program we estimated the
age of our M11
Open star clusters help us determine the
metallicity of our universe
The metalllicity of the universe is important
because we’re made of metals
ACKNOWLEDGEMENTS
Advisors
Vision Science
Gabriel, Gene, Jason P., Jim, Joy, & Maribell
Astronomy
Jason Melbourne
Nick Konidaris
David, Elinor, Jason, Lynne, Marla, Nick, Scott
Sea., Scott Sev.
Teacher Fellow / Sci. Comm.
Gary / Pascha
REFERENCES
WWW.ANTWRP.GFSC.NASA.GOV
Http://antwrp.gsfc.nasa.gov/apod/astropix.ht
ml (Astronomy Pic. of the Day)
Http://mthamilton.ucolick.org/ (Lick
observatory)
www.tcho.la.asu.edu/
www.soral.as.arizona.edu/
www.ctio.noao.edu/
www.star.le.ac.uk/
www.physics.nwu.edu/
QUESTIONS?????