The Library

Possible signs of water and differentiation in a rocky exoplanetary body

Tools

Farihi, J., Brinkworth, C. S., Gaensicke, B. T. (Boris T.), Marsh, T. R., Girven, Jonathan, Hoard, D. W. (Donald Wayne), Klein, B. and Koester, Detlev, 1941-. (2011) Possible signs of water and differentiation in a rocky exoplanetary body. The Astrophysical Journal, Vol.728 (No.1). article no.8. ISSN 0004-637X

Full text not available from this repository.

Abstract

Spitzer observations reveal the presence of warm debris from a tidally destroyed rocky and possibly icy planetary body orbiting the white dwarf GD 61. Ultraviolet and optical spectroscopy of the metal-contaminated stellar photosphere reveal traces of hydrogen, oxygen, magnesium, silicon, iron, and calcium. The nominal ratios of these elements indicate an excess of oxygen relative to that expected from rock-forming metal oxides, and thus it is possible that water was accreted together with the terrestrial-like debris. Iron is found to be deficient relative to magnesium and silicon, suggesting the material may have originated as the outer layers of a differentiated parent body, as is widely accepted for the Moon.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Circumstellar matter, Asteroids, Cosmic abundances, White dwarf stars
Journal or Publication Title: The Astrophysical Journal
Publisher: Institute of Physics Publishing, Inc.
ISSN: 0004-637X
Official Date: 10 February 2011
Volume: Vol.728
Number: No.1
Page Range: article no.8
Identification Number: 10.1088/2041-8205/728/1/L8
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
References:

Basaltic Volcanism Study Project 1981, Basaltic Volcanism on the Terrestrial
Planets (New York: Pergamon)
Brinkworth, C. S., G¨ansicke, B. T., Marsh, T. R., Hoard, D. W., & Tappert, C.
2009, ApJ, 696, 1402
Campins, H., et al. 2010, Nature, 464, 1320
Canup, R. M., & Asphaug, E. 2001, Nature, 412, 708
Debes, J. H., & Sigurdsson, S. 2002, ApJ, 572, 556
Desharnais, S.,Wesemael, F., Chayer, P., Kruk, J.W.,&Saffer, R. A. 2008, ApJ,
672, 540
Dobbie, P. D., et al. 2006, MNRAS, 369, 383
Draine, B. T. 2003, ARA&A, 41, 241
Dufour, P., Bergeron, P., & Fontaine, G. 2005, ApJ, 627, 404
Farihi, J., Barstow, M. A., Redfield, S., Dufour, P.,&Hambly, N. C. 2010a, MNRAS,
404, 2123
Farihi, J., Jura, M., Lee, J. E., & Zuckerman, B. 2010b, ApJ, 714, 1386
Farihi, J., Jura, M., & Zuckerman, B. 2009, ApJ, 694, 805
Farihi, J., Zuckerman, B., & Becklin, E. E. 2005, AJ, 130, 2237
Farihi, J., Zuckerman, B., & Becklin, E. E. 2008, ApJ, 674, 431
Fazio, G. G., et al. 2004, ApJS, 154, 10
Fontaine, G., Brassard, P., & Bergeron, P. 2001, PASP, 113, 409
G¨ansicke, B. T., Koester, D., Girven, J., Marsh, T. R., & Steeghs, D. 2010,
Science, 327, 188
G¨ansicke, B. T., Koester, D., Marsh, T. R., Rebassa-Mansergas, A., & Southworth,
J. 2008, MNRAS, 391, L103
G¨ansicke, B. T., Marsh, T. R., Southworth, J., & Rebassa-Mansergas, A.
2006, Science, 314, 1908
Houck, J. R., et al. 2004, ApJS, 154, 18
Hsieh, H. H., & Jewitt, D. 2006, Science, 312, 561
Hurley, J. R., Pols, O. R., & Tout, C. A. 2000, MNRAS, 315, 543
Jura, M. 2003, ApJ, 584, L91
Jura, M. 2008, AJ, 135, 1785
Jura, M., Farihi, J., & Zuckerman, B. 2007, ApJ, 663, 1285
Jura, M., Farihi, J., & Zuckerman, B. 2009a, AJ, 137, 3191
Jura, M., Muno, M., Farihi, J., & Zuckerman, B. 2009b, ApJ, 699, 1473
Jura, M., & Xu, S. 2010, AJ, 140, 1129
Kalirai, J. S., Hansen, B. M. S., Kelson, D. D., Reitzel, D. B., Rich, R. M., &
Richer, H. B. 2008, ApJ, 676, 594
Klein, B., Jura, M., Koester, D., Zuckerman, B., & Melis, C. 2010, ApJ, 709,
950
Koester, D. 2009, A&A, 498, 517
Koester, D., Napiwotzki, R., Voss, B., Homeier, D., & Reimers, D. 2005, A&A,
439, 317
Koester, D., & Wilken, D. 2006, A&A, 453, 1051
Lisse, C. M., Chen, C. H., Wyatt, M. C., & Morlok, A. 2008, ApJ, 673, 1106
Lodders, K. 2003, ApJ, 591, 1220
Morbidelli, A., Chambers, J., Lunine, J. I., Petit, J. M., Robert, F., Valsecchi,
G. B., & Cyr, K. E. 2000, Meteorit. Planet. Sci., 35, 1309
Patten, B. M., et al. 2006, ApJ, 651, 502
Pelletier, C., Fontaine, G.,Wesemael, F.,Michaud, G., &Wegner, G. 1986, ApJ,
307, 242
Reach, W. T., Kuchner, M. J., von Hippel, T., Burrows, A., Mullally, F., Kilic,
M., & Winget, D. E. 2005, ApJ, 635, L161
Reach, W. T., Lisse, C., von Hippel, T., & Mullally, F. 2009, ApJ, 693, 697
Rivkin, A. S., & Emery, J. P. 2010, Nature, 464, 1322
Sion, E. M., Aannestad, P. A., & Kenyon, S. J. 1988, ApJ, 330, L55
Thomas, P. C., Parker, J. W., McFadden, L. A., Russell, C. T., Stern, S. A.,
Sykes, M. V., & Young, E. F. 2005, Nature, 437, 224
Vogt, S. S., et al. 1994, Proc. SPIE, 2198, 362
vonHippel, T.,Kuchner, M. J.,Kilic, M.,Mullally, F.,&Reach,W. T. 2007, ApJ,
662, 544
Werner, M. W., et al. 2004, ApJS, 154, 1
Williams, K. A., Bolte, M., & Koester, D. 2009, ApJ, 693, 355
Zuckerman, B., Koester, D., Melis, C., Hansen, B.M. S., & Jura, M. 2007, ApJ,
671, 872
Zuckerman, B., Koester, D., Reid, I. N., & H¨unsch, M. 2003, ApJ, 596, 477
URI: http://wrap.warwick.ac.uk/id/eprint/39764

Data sourced from Thomson Reuters' Web of Knowledge

Request changes or add full text files to a record

Actions (login required)

View Item View Item