circumstellar matter; instrumentation: adaptive optics; planetary systems; stars: individual: HD 32297; techniques: high angular resolution
Abstract :
[en] We present an adaptive optics imaging detection of the HD 32297 debris disk at L' (3.8 μm) obtained with the LBTI/LMIRcam infrared instrument at the Large Binocular Telescope. The disk is detected at signal-to-noise ratio per resolution element ~3-7.5 from ~0.''3 to 1.''1 (30-120 AU). The disk at L' is bowed, as was seen at shorter wavelengths. This likely indicates that the disk is not perfectly edge-on and contains highly forward-scattering grains. Interior to ~50 AU, the surface brightness at L' rises sharply on both sides of the disk, which was also previously seen at Ks band. This evidence together points to the disk containing a second inner component located at lsim50 AU. Comparing the color of the outer (50
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Rodigas, Timothy J.; Steward Observatory, The University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA ; Department of Terrestrial Magnetism, Carnegie Institute of Washington, 5241 Broad Branch Road, NW, Washington, DC 20015, USA ; Carnegie Postdoctoral Fellow.
Debes, John H.; Space Telescope Science Institute, Baltimore, MD 21218, USA
Hinz, Philip M.; Steward Observatory, The University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Mamajek, Eric E.; Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627-0171, USA
Pecaut, Mark J.; Department of Physics and Astronomy, University of Rochester, Rochester, NY 14627-0171, USA ; Rockhurst University, 1100 Rockhurst Road, Kansas City, MO 64110, USA
Currie, Thayne; University of Toronto, 50 St. George Street, Toronto, ON M5S 1A1, Canada
Bailey, Vanessa; Steward Observatory, The University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Defrere, Denis ; Université de Liège > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS)
De Rosa, Robert J.; School of Earth and Space Exploration, Arizona State University, P.O. Box 871404, Tempe, AZ 85287-1404, USA
Hill, John M.; Large Binocular Telescope Observatory, University of Arizona, Tucson, AZ 85721, USA
Leisenring, Jarron; Steward Observatory, The University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Schneider, Glenn; Steward Observatory, The University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Skemer, Andrew J.; Steward Observatory, The University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Skrutskie, Michael; Department of Astronomy, University of Virginia, 530 McCormick Road, Charlottesville, VA 22903, USA
Vaitheeswaran, Vidhya; Steward Observatory, The University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721, USA
Ward-Duong, Kimberly; School of Earth and Space Exploration, Arizona State University, P.O. Box 871404, Tempe, AZ 85287-1404, USA)
Baraffe, I., Chabrier, G., Barman, T. S., Allard, F., & Hauschildt, P. H. 2003, A&A, 402, 701
Bertelli, G., Nasi, E., Girardi, L., & Marigo, P. 2009, A&A, 508, 355
Boccaletti, A., Augereau, J.-C., & Lagrange, A.-M. et al. 2012, A&A, 544, A85
Boccaletti, A., Lagrange, A.-M., Bonnefoy, M., Galicher, R., & Chauvin, G. 2013, A&A, 551, L14
Bonnefoy, M., Boccaletti, A., & Lagrange, A.-M. et al. 2013, A&A, 555, A107
Bressan, A., Marigo, P., & Girardi, L. et al. 2012, MNRAS, 427, 127
Buratti, B. J., Soderlund, K., & Bauer, J. et al. 2008, Icar, 193, 309
Burrows, A., Sudarsky, D., & Lunine, J. I. 2003, ApJ, 596, 587
Chiang, E., Kite, E., Kalas, P., Graham, J. R., & Clampin, M. 2009, ApJ, 693, 734
Currie, T., Rodigas, T. J., & Debes, J. et al. 2012, ApJ, 757, 28
Debes, J. H., Weinberger, A. J., & Kuchner, M. J. 2009, ApJ, 702, 318
Debes, J. H., Weinberger, A. J., & Schneider, G. 2008a, ApJL, 673, L191
Debes, J. H., Weinberger, A. J., & Song, I. 2008b, ApJL, 684, L41
Donaldson, J. K., Lebreton, J., Roberge, A., Augereau, J.-C., & Krivov, A. V. 2013, ApJ, 772, 17
Ertel, S., Wolf, S., & Metchev, S. et al. 2011, A&A, 533, A132
Esposito, S., Riccardi, A., & Pinna, E. et al. 2011, Proc. SPIE, 8149, 814902
Esposito, T. M., Fitzgerald, M. P., Graham, J. R., & Kalas, P. 2014, ApJ, 780, 25
Fitzgerald, M. P., Kalas, P. G., & Graham, J. R. 2007, ApJ, 670, 557
Heckmann, O. 1975, AGK 3. Star Catalogue of Positions and Proper Motions North of -2.5 deg. Declination, ed. W. Dieckvoss (Hamburg-Bergedorf: Hamburger Sternwarte)
Hinz, P. M., Bippert-Plymate, T., & Breuninger, A. et al. 2008, Proc. SPIE, 7013, 701328
Honda, M., Inoue, A. K., & Fukagawa, M. et al. 2009, ApJL, 690, L110
Hong, S. S. 1985, A&A, 146, 67
Inoue, A. K., Honda, M., Nakamoto, T., & Oka, A. 2008, PASJ, 60, 557
Lafrenière, D., Marois, C., Doyon, R., Nadeau, D., & Artigau, É. 2007, ApJ, 660, 770
Lagrange, A., Bonnefoy, M., & Chauvin, G. et al. 2010, Sci, 329, 57
