Hostname: page-component-848d4c4894-v5vhk Total loading time: 0 Render date: 2024-06-26T02:35:30.610Z Has data issue: false hasContentIssue false

Last gasp of V1647 Ori: a brief post-outburst warm, molecular wind

Published online by Cambridge University Press:  01 May 2007

Sean D. Brittain
Affiliation:
Department of Physics and Astronomy, Clemson University, Clemson, SC 29634-0978 email: sbritt@clemson.edu
Theodore Simon
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Dr, Honolulu, HI 96822
Terrence W. Rettig
Affiliation:
Center for Astrophysics, University of Notre Dame, Notre Dame, IN 46556
Erika L. Gibb
Affiliation:
University of Missouri at St. Louis, 8001 Natural Bridge Road, St. Louis, MO, 63121
Dinshaw Balsara
Affiliation:
Center for Astrophysics, University of Notre Dame, Notre Dame, IN 46556
David Tilley
Affiliation:
Center for Astrophysics, University of Notre Dame, Notre Dame, IN 46556
Kenneth H. Hinkle
Affiliation:
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Followup infrared spectroscopy is reported for V1647 Ori, a young star whose recent eruption illuminated McNeil's Nebula. Lines of HI, H2, and CO are compared to previous observations. We find that the accretion rate fell two orders of magnitude and the CO bandheads disappeared at the end of the outburst. We also report a striking metamorphosis of the fundamental CO spectrum from centrally peaked profiles to emission lines with superimposed blue-shifted absorption lines and back again one year later. This remarkable change in spectral appearance indicates that the system did not return to equilibrium immediately following the outburst. In this paper we propose a mechanism to explain the emergence of a transient post-outburst outflow.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2007

References

Acosta-Pulido, J. A. et al. , 2007, AJ, 133, 2020CrossRefGoogle Scholar
Andrews, S. M., Rothberg, B., & Simon, T. 2004, Ap. Lett., 610, L45CrossRefGoogle Scholar
Balsara, D. S. 2004, ApJS, 151, 149CrossRefGoogle Scholar
Blake, G. A., & Boogert, A. C. A. 2004, Ap. Lett., 606, L73CrossRefGoogle Scholar
Blandford, R. D., & Payne, D. G. 1982, MNRAS, 199, 883CrossRefGoogle Scholar
Bouvier, J., Alencar, S. H. P., Harries, T. J., Johns-Krull, C. M., Romanova, M. M. 2007, Protostars and Planets V, 479Google Scholar
Briceño, C., et al. 2004, Ap. Lett., 606, L123CrossRefGoogle Scholar
Brittain, S., Simon, T., Najita, J. R., & Rettig, T.W. 2007a, ApJ, 659, 685CrossRefGoogle Scholar
Brittain, S. et al. 2007b, Ap. Lett., submittedGoogle Scholar
Cushing, M. C., Vacca, W. D., & Rayner, J. T. 2004, PASP, 116, 362CrossRefGoogle Scholar
Fedele. D. van den Ancker, M. E., Petr-Gotzens, M. G. & Rafanelli, P. 2007, A&A, in pressGoogle Scholar
Ferreira, J., Dougados, C., & Cabrit, S. 2006, A&A, 453, 785Google Scholar
Gibb, A. G. 1999, MNRAS, 304, 1Google Scholar
Gibb, E. L., Rettig, T. W., Brittain, S. D., Wasikowski, D., Simon, T., Vacca, W. D., Cushing, M. C., Kulesa, C. 2006, ApJ, 641, 383Google Scholar
Glassgold, A. E., Najita, J., & Igea, J. 2004, ApJ, 615, 972CrossRefGoogle Scholar
Ghosh, P., & Lamb, F. K. 1979, ApJ, 234, 296CrossRefGoogle Scholar
Hartigan, P., Edwards, S., & Ghandour, L. 1995, ApJ, 452, 736CrossRefGoogle Scholar
Hartmann, L. 1998, Accretion processes in star formation, Cambridge University Press, 1998Google Scholar
Hartmann, L., & Kenyon, S. J. 1996, ARAA, 34, 207CrossRefGoogle Scholar
C. M., Johns-Krull, & Valenti, J. A. 2000, ASP Conf. Ser. 198: Stellar Clusters and Associations: Convection, Rotation, and Dynamos, 198, 371Google Scholar
Kastner, J. H., et al. 2006, Ap. Lett., 648, L43CrossRefGoogle Scholar
Kóspál, A., Abraham, P. A.-P. J., Csizmadia, S., Eredics, M., Kun, M., Racz, M. 2005, Informational Bulletin on Variable Stars, 5661, 1Google Scholar
Lada, E. A., Bally, J., & Stark, A. A. 1991, ApJ, 368, 432CrossRefGoogle Scholar
Matsumoto, R., Uchida, Y., Hirose, S., Shibata, K., Hayashi, M. R., Ferrari, A., Bodo, G., Norman, C. 1996, ApJ, 461, 115CrossRefGoogle Scholar
Mitchell, G. F., Johnstone, D., Moriarty-Schieven, G., Fich, M., Tothill, N. F. H. 2001, ApJ, 556, 215CrossRefGoogle Scholar
Muzerolle, J., Megeath, S. T., Flaherty, K. M., Gordon, K. D., Rieke, G. H., Young, E. T., Lada, C. J. 2005, Ap. Lett., 620, L107CrossRefGoogle Scholar
Najita, J. R., Edwards, S., Basri, G., & Carr, J. 2000, Protostars and Planets IV, 457Google Scholar
Najita, J., Carr, J. S., & Mathieu, R. D. 2003, ApJ, 589, 931CrossRefGoogle Scholar
Ojha, D. K., et al. 2006, MNRAS, 368, 825CrossRefGoogle Scholar
Rayner, J. T., Toomey, D. W., Onaka, P. M., Denault, A. J., Stahlberger, W. E., Vacca, W. D., Cushing, M. C., Wang, S. 2003, PASP, 115, 362CrossRefGoogle Scholar
Reipurth, B., & Aspin, C. 2004, Ap. Lett., 606, L119CrossRefGoogle Scholar
Rettig, T., Brittain, S., Simon, T., Gibb, E., Balsara, D. S., Tilley, D. A., Kulesa, C. 2006, ApJ, 646, 342CrossRefGoogle Scholar
Rettig, T. W., Brittain, S. D., Gibb, E. L., Simon, T., & Kulesa, C. 2005, ApJ, 626, 245Google Scholar
Vacca, W. D., Cushing, M. C., & Simon, T. 2004, Ap. Lett., 609, L29CrossRefGoogle Scholar
Walter, F. M., Stringfellow, G. S., Sherry, W. H., & Field-Pollatou, A. 2004, AJ, 128, 1872CrossRefGoogle Scholar