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Title: REVISED ORBIT AND TRANSIT EXCLUSION FOR HD 114762b

Abstract

Transiting planets around bright stars have allowed the detailed follow-up and characterization of exoplanets, such as the study of exoplanetary atmospheres. The Transit Ephemeris Refinement and Monitoring Survey is refining the orbits of the known exoplanets to confirm or rule out both transit signatures and the presence of additional companions. Here we present results for the companion orbiting HD 114762 in an eccentric 84 day orbit. Radial velocity analysis performed on 19 years of Lick Observatory data constrain the uncertainty in the predicted time of mid-transit to {approx}5 hr, which is less than the predicted one-half day transit duration. We find no evidence of additional companions in this system. New photometric observations with one of our Automated Photoelectric Telescopes at Fairborn Observatory taken during a revised transit time for companion b, along with 23 years of nightly automated observations, allow us to rule out on-time central transits to a limit of {approx}0.001 mag. Early or late central transits are ruled out to a limit of {approx}0.002 mag, and transits with half the duration of a central transit are ruled out to a limit of {approx}0.003 mag.

Authors:
;  [1];  [2];  [3];  [4]; ;  [5]
  1. NASA Exoplanet Science Institute, Caltech, MS 100-22, 770 South Wilson Avenue, Pasadena, CA 91125 (United States)
  2. Center of Excellence in Information Systems, Tennessee State University, 3500 John A. Merritt Blvd., Box 9501, Nashville, TN 37209 (United States)
  3. Department of Astronomy, Yale University, New Haven, CT 06511 (United States)
  4. Department of Astronomy, University of California, Berkeley, CA 94720 (United States)
  5. Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802 (United States)
Publication Date:
OSTI Identifier:
21562545
Resource Type:
Journal Article
Journal Name:
Astrophysical Journal Letters
Additional Journal Information:
Journal Volume: 735; Journal Issue: 2; Other Information: DOI: 10.1088/2041-8205/735/2/L41; Journal ID: ISSN 2041-8205
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ORBITS; PHOTOMETRY; PLANETS; RADIAL VELOCITY; STARS; VELOCITY

Citation Formats

Kane, Stephen R., Dragomir, Diana, Henry, Gregory W., Fischer, Debra A., Howard, Andrew W., Wang, Xuesong, and Wright, Jason T., E-mail: skane@ipac.caltech.edu. REVISED ORBIT AND TRANSIT EXCLUSION FOR HD 114762b. United States: N. p., 2011. Web. doi:10.1088/2041-8205/735/2/L41.
Kane, Stephen R., Dragomir, Diana, Henry, Gregory W., Fischer, Debra A., Howard, Andrew W., Wang, Xuesong, & Wright, Jason T., E-mail: skane@ipac.caltech.edu. REVISED ORBIT AND TRANSIT EXCLUSION FOR HD 114762b. United States. doi:10.1088/2041-8205/735/2/L41.
Kane, Stephen R., Dragomir, Diana, Henry, Gregory W., Fischer, Debra A., Howard, Andrew W., Wang, Xuesong, and Wright, Jason T., E-mail: skane@ipac.caltech.edu. Sun . "REVISED ORBIT AND TRANSIT EXCLUSION FOR HD 114762b". United States. doi:10.1088/2041-8205/735/2/L41.
@article{osti_21562545,
title = {REVISED ORBIT AND TRANSIT EXCLUSION FOR HD 114762b},
author = {Kane, Stephen R. and Dragomir, Diana and Henry, Gregory W. and Fischer, Debra A. and Howard, Andrew W. and Wang, Xuesong and Wright, Jason T., E-mail: skane@ipac.caltech.edu},
abstractNote = {Transiting planets around bright stars have allowed the detailed follow-up and characterization of exoplanets, such as the study of exoplanetary atmospheres. The Transit Ephemeris Refinement and Monitoring Survey is refining the orbits of the known exoplanets to confirm or rule out both transit signatures and the presence of additional companions. Here we present results for the companion orbiting HD 114762 in an eccentric 84 day orbit. Radial velocity analysis performed on 19 years of Lick Observatory data constrain the uncertainty in the predicted time of mid-transit to {approx}5 hr, which is less than the predicted one-half day transit duration. We find no evidence of additional companions in this system. New photometric observations with one of our Automated Photoelectric Telescopes at Fairborn Observatory taken during a revised transit time for companion b, along with 23 years of nightly automated observations, allow us to rule out on-time central transits to a limit of {approx}0.001 mag. Early or late central transits are ruled out to a limit of {approx}0.002 mag, and transits with half the duration of a central transit are ruled out to a limit of {approx}0.003 mag.},
doi = {10.1088/2041-8205/735/2/L41},
journal = {Astrophysical Journal Letters},
issn = {2041-8205},
number = 2,
volume = 735,
place = {United States},
year = {2011},
month = {7}
}