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Planetary Transits of the Trans-Atlantic Exoplanet Survey Candidate TrES-1b

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Aaron Price

AAVSO Headquarters, 25 Birch Street, Cambridge, MA 02138

Ron Bissinger

1142 Mataro Court, Pleasanton, CA 04566

Gregory P. Laughlin

UCO/Lick Observatory, Department of Astronomy and Astrophysics, University of California, Santa Cruz, CA 95064

Bruce L. Gary

5320 E. Calle de la Marzana, Hereford, AZ 85615

Tonny Vanmunster

Center for Backyard Astrophysics-Belgium, Walhostraat 1A, B-3401 Landen, Belgium

Arne A. Henden

Universities Space Research Association, U.S. Naval Observatory, Flagstaff, AZ 86001

Donn Ray Starkey

2507 CR 60, Auburn, IN 45706

Daniel H. Kaiser

2631 Washington Street, Columbus, IN 47201

Jon A. Holtzman

New Mexico State University, Box 30001, Department 4500, 1320 Frenger Street, Las Cruces, NM 88003

Laurence A. Marschall

Department of Physics, Gettysburg College, Gettysburg, PA 17325

Thomas Michalik

T. Wellington

Physics Department, Randolph-Macon Woman's College, 2500 Rivermont Avenue, Lynchburg, VA 24503

Pertti Paakkonen

Amateur Astronomers Association Seulaset, Pursitie 1 Dz, FIN-80160, Joensuu,Finland

Zsolt Kereszty

Geza Fejedelem 40, 9081 Gyorujbarat, Hungary

Russ Durkee

Shed of Science Observatory, 5213 Washburn Avenue S., Minneapolis, MN 55410

Kent Richardson

San Diego Astronomy Association, San Diego, CA

Robin Leadbeater

The Birches, Torpenhow, Wigton, Cumbria, CA7 1JF, England

Timothy P. Castellano

NASA Ames Research Center, Moffett Field, CA 94035

Received December 10, 2004; accepted December 14, 2004

Abstract  The AAVSO compiled 10,560 CCD observations of the suspected exoplanet transit object TrES-1b covering seven complete transit windows, three windows of partial coverage, and coverage of baseline non-transit periods. Visual inspection of the light curves reveals the presence of slight humps at the egress points of some transits. A boot strap Monte Carlo simulation was applied to the data to confirm that the humps exist to a statistically significant degree. However, it does not rule out systemic effects which will be tested with campaigns in the 2005 observing season.

Link to ADS abstract, article and citation information