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12 results on '"Oates, S"'

1. A Statistical Comparison of the Optical∕UV and X-ray GRB Afterglows Observed using the Swift UVOT and XRT

Author

Oates, S. R., primary, Page, M. J., additional, Schady, P., additional, De Pasquale, M., additional, Evans, P. A., additional, Page, K. L., additional, Chester, M. M., additional, Curran, P., additional, Koch, T. S., additional, Kuin, N. P. M., additional, Roming, P. W. A., additional, Siegel, M., additional, Zane, S., additional, Nousek, J. A., additional, McEnery, J. E., additional, Racusin, J. L., additional, and Gehrels, N., additional

Published
2011
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3. Jet breaks at the end of the plateau phase of Swift GRB lightcurves

Author

De Pasquale, M., primary, Evans, P., additional, Oates, S., additional, Page, M., additional, Zane, S., additional, Breeveld, A., additional, Holland, S., additional, Still, M., additional, Giobbi, Giuliana, additional, Tornambe, Amedeo, additional, Raimondo, Gabriella, additional, Limongi, Marco, additional, Antonelli, L. A., additional, Menci, Nicola, additional, and Brocato, Enzo, additional

Published
2009
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4. The GRB Mean Extinction Curve

Author

Schady, P., primary, Page, M. J., additional, Oates, S. R., additional, Still, M., additional, Giobbi, Giuliana, additional, Tornambe, Amedeo, additional, Raimondo, Gabriella, additional, Limongi, Marco, additional, Antonelli, L. A., additional, Menci, Nicola, additional, and Brocato, Enzo, additional

Published
2009
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5. Gas-to-Dust Ratios in GRB Host Galaxies

Author

Schady, P., primary, Mason, K. O., additional, Page, M. J., additional, De Pasquale, M., additional, Morris, D. C., additional, Oates, S. R., additional, Roming, P. W. A., additional, Immler, S., additional, Vanden Berk, D. E., additional, Galassi, M., additional, Palmer, David, additional, and Fenimore, Ed, additional

Published
2008
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6. GRB 070318: A Case of Prompt Emission from the External Shock?

Author

Chester, M. M., primary, Wang, X. Y., additional, Cummings, J. R., additional, Grupe, D., additional, Hunsberger, S. D., additional, La Parola, V., additional, Marshall, F. E., additional, Mineo, T., additional, Oates, S. R., additional, Page, M. J., additional, Roming, P., additional, Galassi, M., additional, Palmer, David, additional, and Fenimore, Ed, additional

Published
2008
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7. Extreme Properties of GRB 061007: a highly energetic or a highly collimated burst?

Author

Schady, P., primary, De Pasquale, M., additional, Page, M. J., additional, Vetere, L., additional, Wang, X. Y., additional, Cummings, J., additional, Zhang, B., additional, Zane, S., additional, Breeveld, A., additional, Burrows, D. N., additional, Gehrels, N., additional, Gronwall, C., additional, Hunsberger, S., additional, Markwardt, C., additional, Mason, K. O., additional, Mészáros, P., additional, Norris, J. P., additional, Oates, S. R., additional, Pagani, C., additional, Poole, T. S., additional, Roming, P. W. A., additional, Smith, P. J., additional, Vanden Berk, D. E., additional, Galassi, M., additional, Palmer, David, additional, and Fenimore, Ed, additional

Published
2008
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10. UV/Optical Properties of GRBs with the Swift UVOT.

Author

Roming, P. W. A., Koch, T. S., Oates, S. R., Porterfield, B. L., and Berk, D. E. Vander

Subjects
TELESCOPES, GAMMA ray bursts, ULTRAVIOLET radiation, SLOPES (Physical geography), NUCLEAR physics
Abstract

The Swift Ultra-Violet/Optical Telescope has observed ∼200 gamma-ray bursts (GRBs) in its first two-and-a-half years of operation. From this collection of observations we have obtained ∼40 well sampled light curves. Using this dataset we present general optical/UV properties of GRBs, including filter dependent temporal slopes and color-color relationships. We also show that correlations exist between both the 11 hour X-ray flux (0.3–10 keV) and the prompt gamma-ray fluence (15–150 keV) and the v-band magnitude at 2000 s. [ABSTRACT FROM AUTHOR]

Published
2008
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11. Energy injection in GRB afterglows: the cases of Swift GRBs 050401, 050801 and 050802.

Author

De Pasquale, M., Oates, S. R., Beardmore, A., Page, K. L., Blustin, A. J., Zane, S., Page, M. J., O'Mason, K., Burrows, D. N., Palmer, D., Gehrels, N., Nousek, J., Roming, P., Price, P., and Zhang, B.

Subjects
*GAMMA ray bursts, *GAMMA ray astronomy, *X-ray bursts, *GAMMA decay, *X-rays, *AFTERGLOW (Physics)
Abstract

Swift very fast follow up observations of Gamma-Ray Bursts have allowed us to discover a new feature of GRB afterglows: a phase of shallow decay, usually attributed to energy injection in the burst ejecta, which can last for several thousands of seconds both in the X-ray and optical bands. Here I shall discuss this phase in the cases of Swift GRBs 050401, 050801 and 050802. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2007
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12. Understanding the Nature of Dark Bursts with the Afterglow of GRB 060108.

Author

Oates, S. R., Mundell, C. G., Piranomonte, S., Page, K. L., De Pasquale, M., Monfardini, A., Melandri, A., Zane, S., Guidorzi, C., and Malesani, D.

Subjects
*STARBURSTS, *AFTERGLOW (Physics), *X-ray binaries, *BINARY stars, *X-ray astronomy, *REDSHIFT
Abstract

We present observations of GRB 060108, the 100th burst detected by Swift. The optical afterglow was found to be below UVOT detection limits within the first 100 s, and the ratio of X-ray and R band measurements at ∼ 1000 s after the trigger gives a spectral index βOX = 0.45, which makes this burst “dark” according to the Jakobbson classification. We derive a maximum photometric redshift of z<3.2, which excludes a high redshift as a possible cause of the observed darkness, and we find that the most likely explanation is a combination of intrinsic faintness, a hard optical to X-ray spectrum and dust extinction. © 2007 American Institute of Physics [ABSTRACT FROM AUTHOR]

Published
2007
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