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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Publisher: Oxford University Press
Journal: Monthly Notices of the Royal Astronomical Society
Languages: English
Types: Article
Subjects: QB, QC, Astrophysics - Solar and Stellar Astrophysics

Classified by OpenAIRE into

arxiv: Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Galaxy Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Solar and Stellar Astrophysics
We present the discovery of strongly variable emission lines from a gaseous disc around the DA white dwarf SDSS J1617+1620, a star previously found to have an infrared excess indicative of a dusty debris disc formed by the tidal disruption of a rocky planetary body. Time-series spectroscopy obtained during the period 2006-2014 has shown the appearance of strong double-peaked Ca II emission lines in 2008. The lines were weak, at best, during earlier observations, and monotonically faded through the remainder of our monitoring. Our observations represent unambiguous evidence for short-term variability in the debris environment of evolved planetary systems. Possible explanations for this extraordinary variability include the impact onto the dusty disc of either a single small rocky planetesimal, or of material from a highly eccentric debris tail. The increase in flux from the emission lines is sufficient that similar events could be detected in the broadband photometry of ongoing and future large-area time domain surveys.
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    • Abazajian, K. N., et al., 2009, ApJS, 182, 543 Adelman-McCarthy, J. K., et al., 2008, ApJS, 175, 297 All`egre, C., Manh`es, G., Lewin, E., 2001, Earth and Planetary Science Letters, 185, 49
    • Appenzeller, I., et al., 1998, The Messenger, 94, 1 Barstow, M. A., Barstow, J. K., Casewell, S. L., Holberg, J. B., Hubeny, I., 2014, MNRAS, 440, 1607 Bergfors, C., Farihi, J., Dufour, P., Rocchetto, M., 2014, ArXiv e-prints
    • Brinkworth, C. S., G¨ansicke, B. T., Marsh, T. R., Hoard, D. W., Tappert, C., 2009, ApJ, 696, 1402 Brinkworth, C. S., G¨ansicke, B. T., Girven, J. M., Hoard, D. W., Marsh, T. R., Parsons, S. G., Koester, D., 2012, ApJ, 750, 86
    • Carrasco, J. M., Catala´n, S., Jordi, C., Tremblay, P.-E., Napiwotzki, R., Luri, X., Robin, A. C., Kowalski, P. M., 2014, A&A, 565, A11
    • Casewell, S. L., Dobbie, P. D., Napiwotzki, R., Burleigh, M. R., Barstow, M. A., Jameson, R. F., 2009, MNRAS, 395, 1795
    • Catala´n, S., Isern, J., Garc´ıa-Berro, E., Ribas, I., 2008, MNRAS, 387, 1693
    • Chayer, P., Fontaine, G., Wesemael, F., 1995, ApJS, 99, 189
    • Davidsson, B. J. R., 1999, Icarus, 142, 525 Debes, J. H., L´opez-Morales, M., 2008, ApJ Lett., 677, L43 Debes, J. H., Kilic, M., Faedi, F., Shkolnik, E. L., LopezMorales, M., Weinberger, A. J., Slesnick, C., West, R. G., 2012a, ApJ, 754, 59
    • Debes, J. H., Walsh, K. J., Stark, C., 2012b, ApJ, 747, 148 Dekker, H., D'Odorico, S., Kaufer, A., Delabre, B., Kotzlowski, H., 2000, in Iye, M., Moorwood, A. F., eds., Optical and IR Telescope Instrumentation and Detectors, vol. 4008 of Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, p. 534 Dufour, P., Kilic, M., Fontaine, G., Bergeron, P., Melis, C., Bochanski, J., 2012, ApJ, 749, 6
    • Farihi, J., Jura, M., Zuckerman, B., 2009, ApJ, 694, 805 Farihi, J., G¨ansicke, B. T., Steele, P. R., Girven, J., Burleigh, M. R., Breedt, E., Koester, D., 2012, MNRAS, 421, 1635
    • G¨ansicke, B. T., 2011, in Schuh, S., Drechsel, H., Heber, U., eds., American Institute of Physics Conference Series, vol. 1331 of American Institute of Physics Conference Series, p. 211
    • G¨ansicke, B. T., Marsh, T. R., Southworth, J., RebassaMansergas, A., 2006, Science, 314, 1908 G¨ansicke, B. T., Marsh, T. R., Southworth, J., 2007, MNRAS, 380, L35
    • G¨ansicke, B. T., Koester, D., Marsh, T. R., RebassaMansergas, A., Southworth, J., 2008, MNRAS, 391, L103 G¨ansicke, B. T., Koester, D., Farihi, J., Girven, J., Parsons, S. G., Breedt, E., 2012, MNRAS, 424, 333 Girven, J., G¨ansicke, B. T., Steeghs, D., Koester, D., 2011, MNRAS, 417, 1210
    • Graham, J. R., Matthews, K., Neugebauer, G., Soifer, B. T., 1990, ApJ, 357, 216
    • Hartmann, S., Nagel, T., Rauch, T., Werner, K., 2011, A&A, 530, A7
    • Holberg, J. B., Bergeron, P., 2006, AJ, 132, 1221 Horne, K., Marsh, T. R., 1986, MNRAS, 218, 761 Ivezi´c, Zˇ., et al., 2007, AJ, 134, 973 Jura, M., 2003, ApJ Lett., 584, L91 Jura, M., 2008, AJ, 135, 1785
    • Jura, M., Xu, S., 2012, AJ, 143, 6
    • Jura, M., Xu, S., Klein, B., Koester, D., Zuckerman, B., 2012, ApJ, 750, 69
    • Kalirai, J. S., Hansen, B. M. S., Kelson, D. D., Reitzel, D. B., Rich, R. M., Richer, H. B., 2008, ApJ, 676, 594 King, A. R., Pringle, J. E., Livio, M., 2007, 376, 1740 Kinnear, T., 2011, Irradiated Gaseous Discs Around White Dwarfs, Master's thesis, University of Warwick Klein, B., Jura, M., Koester, D., Zuckerman, B., Melis, C., 2010, ApJ, 709, 950
    • Klein, B., Jura, M., Koester, D., Zuckerman, B., 2011, ApJ, 741, 64
    • Koester, D., 2009, A&A, 498, 517
    • Koester, D., 2010, Memorie della Societa Astronomica Italiana,, 81, 921
    • Koester, D., Provencal, J., Shipman, H. L., 1997, A&A, 320, L57
    • Koester, D., G¨ansicke, B. T., Farihi, J., 2014, A&A, 566, A34
    • Kowalski, P. M., Saumon, D., 2006, ApJ Lett., 651, L137 Lodders, K., 2003, ApJ, 591, 1220
    • LSST Science Collaboration, et al., 2009, arXiv:0912.0201 Marsh, T. R., 1989, PASP, 101, 1032 McDonough, W., 2000, in Teisseyre, R., Majewski, E., eds., Earthquake Thermodynamics and Phase Transformation in the Earth's Interior, Elsevier Science Academic Press, p. 5
    • Melis, C., Jura, M., Albert, L., Klein, B., Zuckerman, B., 2010, ApJ, 722, 1078
    • Melis, C., Farihi, J., Dufour, P., Zuckerman, B., Burgasser, A. J., Bergeron, P., Bochanski, J., Simcoe, R., 2011, ApJ, 732, 90
    • Melis, C., et al., 2012, ApJ Lett., 751, L4 Metzger, B. D., Rafikov, R. R., Bochkarev, K. V., 2012, MNRAS, 423, 505
    • Ofek, E. O., et al., 2012, PASP, 124, 62 Rafikov, R. R., 2011, MNRAS, 416, L55 Rafikov, R. R., Garmilla, J. A., 2012, ApJ, 760, 123 Steele, P. R., Burleigh, M. R., Dobbie, P. D., Jameson, R. F., Barstow, M. A., Satterthwaite, R. P., 2011, MNRAS, 416, 2768
    • Tremblay, P.-E., Bergeron, P., Gianninas, A., 2011, ApJ, 730, 128
    • Vennes, S., Kawka, A., N´emeth, P., 2010, MNRAS, 404, L40
    • Vennes, S., Kawka, A., N´emeth, P., 2011, MNRAS, 413, 2545
    • Veras, D., Leinhardt, Z., Bonsor, A., G¨ansicke, B., 2014, MNRAS, submitted
    • Vernet, J., et al., 2011, A&A, 536, A105 von Hippel, T., Thompson, S. E., 2007, ApJ, 661, 477 von Hippel, T., Kuchner, M. J., Kilic, M., Mullally, F., Reach, W. T., 2007, ApJ, 662, 544
    • Williams, K. A., Bolte, M., Koester, D., 2009, ApJ, 693, 355
    • Xu, S., Jura, M., 2014, ArXiv e-prints Xu, S., Jura, M., Klein, B., Koester, D., Zuckerman, B., 2013, ApJ, 766, 132
    • Xu, S., Jura, M., Koester, D., Klein, B., Zuckerman, B., 2014, ApJ, 783, 79
    • Zuckerman, B., Becklin, E. E., 1987, Nat, 330, 138 Zuckerman, B., Koester, D., Reid, I. N., Hu¨nsch, M., 2003, ApJ, 596, 477
    • Zuckerman, B., Koester, D., Melis, C., Hansen, B. M., Jura, M., 2007, ApJ, 671, 872
    • Zuckerman, B., Melis, C., Klein, B., Koester, D., Jura, M., 2010, ApJ, 722, 725
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