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Search for Transiting Exoplanets with HATNet

Published online by Cambridge University Press:  01 May 2008

G. Á. Bakos ,
R. W. Noyes ,
G. Kovács ,
D. W. Latham ,
G. Torres ,
D. Sasselov ,
A. Pál ,
B. Sipőcz  and
Gábor Kovács
G. Á. Bakos
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden street, MA 02138, USA email: [email protected]
R. W. Noyes
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden street, MA 02138, USA email: [email protected]
G. Kovács
Affiliation:
Konkoly Observatory, Budapest
D. W. Latham
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden street, MA 02138, USA email: [email protected]
G. Torres
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden street, MA 02138, USA email: [email protected]
D. Sasselov
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden street, MA 02138, USA email: [email protected]
A. Pál
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden street, MA 02138, USA email: [email protected] Loránd Eötvös University, Budapest
B. Sipőcz
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden street, MA 02138, USA email: [email protected] Loránd Eötvös University, Budapest
Gábor Kovács
Affiliation:
Harvard-Smithsonian Center for Astrophysics, 60 Garden street, MA 02138, USA email: [email protected]
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Abstract

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HATNet is a network of six identical, fully automated wide field telescopes, four of which are located in Arizona, and two at Hawaii. The purpose of the network is to search for transiting extrasolar planets around relatively bright stars (8 < I < 12). The longitudinal coverage of 3.5 hours greatly enhances transit detection efficiency. HATNet has been operational since 2004, and has taken more than 1/2 million science frames at 5-min integrations, covering about 7% of the sky. Photometric precision reaches 3mmag rms at 5.5 min cadence at I ≈ 8, and is 1% at I ≈ 11.3. Hundreds of transit candidates have been detected in the data, and have been subject to vigorous follow-up by various 1m-class facilities, both spectroscopy and follow-up photometry. A fraction of the candidates that have survived these steps as not being false alarms have been observed by high resolution and precision spectrographs (primarily Keck/HIRES), to confirm their planetary nature and characterize their properties. So far nine transiting planets have been reported, making HATNet a very successful survey.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S253: Transiting Planets , May 2008 , pp. 21 - 27
Copyright
Copyright © International Astronomical Union 2009

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