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The 'DODO' survey - I. Limits on ultra-cool substellar and planetary-mass companions to van Maanen's star (vMa 2)

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Burleigh, Matthew R., Clarke, F. J., Hogan, E., Brinkworth, C. S., Bergeron, P., Dufour, P., Dobbie, P. D., Levan, A. J., Hodgkin, S. T., Hoard, D. W. (Donald Wayne) and Wachter, S.. (2008) The 'DODO' survey - I. Limits on ultra-cool substellar and planetary-mass companions to van Maanen's star (vMa 2). Monthly Notices of the Royal Astronomical Society, Vol.386 (No.1). L5-L9. ISSN 0035-8711

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Abstract

We report limits in the planetary-mass regime for companions around the nearest single white dwarf to the Sun, van Maanen's star (vMa 2), from deep J- band imaging with Gemini North and Spitzer Infrared Array Camera ( IRAC) mid- IR photometry. We find no resolvedcommonproper motion companions to vMa 2 at separations from 3 to 45 arcsec, at a limiting magnitude of J approximate to 23. Assuming a total age for the system of 4.1 +/- 1 Gyr, and utilizing the latest evolutionary models for substellar objects, this limit is equivalent to companion masses > 7 +/- 1 M-Jup( T-eff approximate to 300 K). Taking into account the likely orbital evolution of very low mass companions in the post-main- sequence phase, these J- band observations effectively survey orbits around the white dwarf progenitor from 3 to 50 au. There is no flux excess detected in any of the complimentary Spitzer IRAC mid- IR filters. We fit a white dwarf model atmosphere to the optical BVRI, JHK and IRAC photometry. The best solution gives T-eff = 6030 +/- 240 K, log g= 8.10 +/- 0.04 and, hence, M = 0.633 +/- 0.022M(circle dot). We then place a 3 sigma upper limit of 10 +/- 2M(Jup) on the mass of any unresolved companion in the 4.5 mu m band.

Item Type: Journal Article
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Low mass stars, Brown dwarf stars, Extrasolar planets, White dwarf stars, Infrared astronomy
Journal or Publication Title: Monthly Notices of the Royal Astronomical Society
Publisher: Wiley
ISSN: 0035-8711
Official Date: 1 May 2008
Volume: Vol.386
Number: No.1
Number of Pages: 5
Page Range: L5-L9
Identification Number: 10.1111/j.1745-3933.2008.00446.x
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Funder: Natural Sciences and Engineering Research Council Canada (NSERC)
References:

Baraffe I., Chabrier G., Barman T. S., Allard F., Hauschildt P. H., 2003,
A&A, 402, 701
Becklin E. E., Zuckerman B., 1988, Nat, 336, 656
Becklin E. E., Farihi J., Jura M., Song I., Weinberger A. J., Zuckerman B.,
2005, ApJ, 632, L119
Brinkworth C. S. et al., 2007, ApJ, 659, 1541
Burleigh M. R., Clarke F. J., Hodgkin S. T., 2002, MNRAS, 331, L41
Burleigh M. R., Hogan E., Clarke F. J., 2006a, in Whitelock P. A., Dennefeld
M., Liebundgut B., eds, Proc. IAU Symp. 232, The Scientific
Requirements for Extremely Large Telescopes. Cambridge Univ. Press,
Cambridge, p. 344
Burleigh M. R., Hogan E., Dobbie P. D., Napiwotzki R., Maxted P. F. L.,
2006b, MNRAS, 373, L55
Chary R., Zuckerman B., Becklin E. E., 1999, in Cox P., Kessler M. F., eds,
ESA-SP 427, The Universe as Seen by ISO. ESA, Garching, p. 289
Chauvin G., Lagrange A.-M., Dumas C., Zuckerman B., Mouillet D., Song
I., Beuzit J.-L., Lowrance P., 2004, A&A, 425, L29
Chauvin G., Lagrange A.-M., Dumas C., Zuckerman B., Mouillet D., Song
I., Beuzit J.-L., Lowrance P., 2005, A&A, 438, L25
Clarke F. J., Burleigh M. R., 2004, in Beaulieu J.-P., Lecavelier des Etangs
A., Terquem C., eds, ASP Conf. Ser. Vol. 321, Extrasolar planets: Today
and Tomorrow. Astron. Soc. Pac., San Francisco, p. 76
Debes J. H., Sigurdsson S., 2002, ApJ, 572, 556
Debes J. H., Sigurdsson S., Woodgate B. E., 2005, ApJ, 633, 1168
Dobbie P. D., Burleigh M. R., Levan A. J., Barstow M. A., Napiwotzki R.,
Holberg J. B., Hubeny I., Howell S. B., 2005, MNRAS, 357, 1049
Dobbie P. D., Napiwotzki R., Lodieu N., Burleigh M. R., Barstow M. A.,
Jameson R. F., 2006, MNRAS, 373, L45
Dufour P. et al., 2007, ApJ, 663, 1291
Duncan M. J., Lissauer J. J., 1998, Icarus, 134, 303
Dupuis J., Fontaine G., Pelletier C., Wesemael F., 1992, ApJS, 82, 505
Dupuis J., Fontaine G., Wesemael F., 1993, ApJS, 87, 345
Farihi J., Christopher M., 2004, AJ, 128, 1868
Farihi J., Becklin E. E., Macintosh B. A., 2004, ApJ, 608, L109
Farihi J., Becklin E. E., Zuckerman B., 2005, ApJS, 161, 394
Fazio G. G. et al., 2004, ApJS, 154, 10
Ferrario L.,Wickramasinghe D., Liebert J.,Williams K. A., 2005, MNRAS,
361, 1131
G¨ansicke B. T., Marsh T. R., Southworth J., Rebassa-Mansergas A., 2006,
Sci, 314, 1908
Hodapp K. W. et al., 2003, PASP, 115, 1388
Hogan E., Burleigh M. R., Clarke F. J., 2007, in Napiwotzki R., Burleigh
M. R., eds, ASP Conf. Ser. Vol. 372, 15th EuropeanWorkshop on White
Dwarfs. Astron. Soc. Pac., San Francisco, p. 349
Hurley J. R., Pols O. R., Tout C. A., 2000, MNRAS, 315, 543
Jeans J. H., 1924, MNRAS, 85, 2
Jura M., 2003, ApJ, 584, L91
Jura M., 2006, ApJ, 653, 613
Jura M., Farihi J., Zuckerman B., 2007a, ApJ, 663, 1285
Jura M., Farihi J., Zuckerman B., Becklin E. E., 2007b, AJ, 133, 1927
Kalirai J. S., Richer H. B., Reitzel D., Hansen B. M. S., Rich R. M., Fahlman
G. G., Gibson B. K., von Hippel T., 2005, ApJ, 618, L123
Kilic M., Redfield S., 2007, ApJ, 660, 641
Kilic M., von Hippel T., Leggett S. K., Winget D. E., 2005, ApJ, 632, L115
Kilic M., von Hippel T., Leggett S. K., Winget D. E., 2006, ApJ, 646, 474
Kirkpatrick J. D., 2005, ARA&A, 43, 195
Makarov V., 2004, ApJ, 600, L71
Makovoz D., Marleau F. R., 2005, PASP, 117, 1113
Maxted P. F. L., Napiwotzki R., Dobbie P. D., Burleigh M. R., 2006, Nat,
442, 543
Mullally F., Winget D. E., Kepler S. O., 2007, in Napiwotzki R., Burleigh
M. R., eds, ASP Conf. Ser. Vol. 372, 15th EuropeanWorkshop on White
Dwarfs. Astron. Soc. Pac., San Francisco, p. 363
Perryman M. A. C. et al., 1997, A&A, 323, L49
Probst R. G., 1983, ApJS, 53, 335
Reach W. T., Kuchner M. J., von Hippel T., Burrows A., Kilic M., Mullally
F., Winget D. E., 2005a, ApJ, 635, L161
Reach W. T. et al., 2005b, PASP, 117, 978
Silvotti R. et al., 2007, Nat, 449, 189
Skrutskie M. F. et al., 2006, AJ, 131, 1163
van Maanen A., 1917, PASP, 29, 258
Villaver V., Livio M., 2007, ApJ, 661, 1192
von Hippel T., Kuchner M. J., Kilic M., Mullally F., ReachW. T., 2007, ApJ,
662, 544
Warren S. J. et al., 2007, MNRAS, 381, 1400
Werner M. W. et al., 2004, ApJS, 154, 1
Wolff B., Koester D., Liebert J., 2002, A&A, 385, 995
Wood M. A., 1992, ApJ, 386, 539
Zuckerman B., Becklin E. E., 1987, ApJ, 319, L99
URI: http://wrap.warwick.ac.uk/id/eprint/30200

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