Segue Virtual Journal
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Timothy Beers
, University of Notre Dame
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The exclusion of a significant range of ages in a massive star cluster
Volume 9, Issue 25 - article #53
Hubble Space Telescope observations of the stellar cluster NGC 1651
,
which is approximately two billion years old
,
show that the colour–brightness distribution of stars old enough to have left the main sequence can be explained only by a single-age population
,
despite having a feature usually interpreted to indicate an age spread of more than 300 million years.
Nature - Volume: 516, Issue: 7531
290-444
A massive galaxy in its core formation phase three billion years after the Big Bang
Volume 9, Issue 22 - article #74
Hubble Space Telescope
,
Keck telescope
and
Spitzer satellite data reveal the formation of the dense stellar core of a massive galaxy occurring three billion years after the Big Bang.
Nature - Volume: 513, Issue: 7518
282-454
Results 1 - 2 of 2
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