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Subject

Astronomy45
Astrophysics35
Stars--Observations14
Sloan Digital Sky Survey10
White dwarf stars10
Imaging systems in astronomy9
X-ray astronomy9
Cataclysmic variable stars6
Cataclysmic variable stars--Spectra6
Low mass stars6
Stars--Spectra5
Binary stars4
Active galactic nuclei3
Neutron stars3
Stars3
Stars--Clusters3
X-ray spectroscopy3
Galactic nuclei2
Light curves2
Stars--Open clusters2

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Academic Commons provides global access to research and scholarship produced at Columbia University, Barnard College, Teachers College, Union Theological Seminary and Jewish Theological Seminary. Academic Commons is managed by the Columbia University Libraries.