Evolución de galaxias
Evolucion
John
Beckman
Publications dans lesquelles il/elle collabore avec John Beckman (18)
2013
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Electron densities of HII regions throughout the NGC 6946 disk
Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
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The filling factor-radius relation for 58 H II regions across the disk of NGC 6946
Astrophysical Journal Letters, Vol. 765, Núm. 1
1996
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Molecular gas observations and enhanced massive star formation efficiencies in M 100
Astronomy and Astrophysics, Vol. 308, Núm. 1, pp. 27-39
1993
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Star formation in the spiral arms of NGC 4321. II. H I distribution and kinematics
Astrophysical Journal, Vol. 416, Núm. 2, pp. 563-575
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Statistics and properties of H II regions in NGC 6814
Astronomical Journal, Vol. 106, Núm. 1, pp. 56-65
1992
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Star formation in the spiral arms of NGC 4321. I. CO observations
Astronomical Journal, Vol. 103, Núm. 2, pp. 429-435
1990
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An improved evolutionary model for stellar population applied to NGC 2903
Astrophysics and Space Science, Vol. 170, Núm. 1-2, pp. 275-282
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Departures from axial symmetry, and starburst activity, in the bulge of NGC 4736
Astrophysics and Space Science, Vol. 170, Núm. 1-2, pp. 305-310
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Efficiency of massive star formation in grand design spirals
Astrophysics and Space Science, Vol. 170, Núm. 1-2, pp. 209-214
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Hii region statistics in spirals
Astrophysics and Space Science, Vol. 170, Núm. 1-2, pp. 297-303
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Photometric separation of the bulge and disc components of spirals using CCD imaging
Astrophysics and Space Science, Vol. 170, Núm. 1-2, pp. 225-229
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Satellite galaxies as probes of the gravitational potentials of large spirals
Astrophysics and Space Science, Vol. 170, Núm. 1-2, pp. 327-335
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Star formation triggering by density waves in the grand design spirals NGC 3992 and NGC 628
Astrophysical Journal, Vol. 349, Núm. 2, pp. 497-502
1989
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A photometric study of the double ring structure of NGC 4736
Astrophysics and Space Science, Vol. 156, Núm. 1-2, pp. 301-313
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Application of a new evolutionary model for stellar populations to photometric maps of M32
Astrophysics and Space Science, Vol. 157, Núm. 1-2, pp. 89-101
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Differential efficiency of massive star formation in NGC 628
Astrophysics and Space Science, Vol. 156, Núm. 1-2, pp. 289-293
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Evidence for leading spiral arm formation in NGC 7479
Astrophysics and Space Science, Vol. 156, Núm. 1-2, pp. 199-204
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Taurus observations of the velocity field in the inner zone of NGC 6946
Astrophysics and Space Science, Vol. 157, Núm. 1-2, pp. 157-163