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Record 42 of 755
DDOTI: the Deca-Degree Optical Transient Imager
External Online Source: doi:10.1117/12.2232898
Author and Affiliation:
Watson, Alan M.(Universidad Nacional Autonoma de Mexico, Inst. de Astronomia, Coyoacan, Mexico)
Lee, William H.(Universidad Nacional Autonoma de Mexico, Inst. de Astronomia, Coyoacan, Mexico)
Troja, Eleonora(Maryland Univ., College Park, MD, United States)
Roman-Zuniga, Carlos G.(Universidad Nacional Autonoma de Mexico, Inst. de Astronomia, Ensenada, Mexico)
Butler, Nathaniel R.(Arizona State Univ., School of Earth and Space Exploration, Tempe, AZ, United States)
Kutyrev, Alexander S.(Maryland Univ., College Park, MD, United States)
Gehrels, Neil A.(NASA Goddard Space Flight Center, Greenbelt, MD United States)
Angeles, Fernando(Universidad Nacional Autonoma de Mexico, Inst. de Astronomia, Coyoacan, Mexico)
Basa, Stephane(Aix-Marseilles Univ., CNRS, Lab. d'Astrophysique de Marseille (LAM), France)
Blanc, Pierre-Eric(Observatoire de Haute Provence, Forcalquier, France) Show more authors
Abstract: DDOTI (Deca-Degree Optical Transient Imager) will be a wide-field robotic imager consisting of six 28-centimeter telescopes with prime focus CCDs (Charge-Coupled Devices) mounted on a common equatorial mount. Each telescope will have a field of view of 12 degrees squared, will have 2 arcsec pixels, and will reach a 10 sigma limiting magnitude in 60 seconds of r (redshift) equal to 18.7 in dark time and r (redshift) equal to 18.0 in bright time. The set of six will provide aninstantaneous field of view of about 72 degrees squared. DDOTI uses commercial components almost entirely. The first DDOTI willbe installed at the Observatorio Astronmico Nacional in Sierra San Pedro Martir, Baja California, Mexico in early 2017. The main science goals of DDOTI are the localization of the optical transients associated with GRBs (Gamma Ray Bursts) detected by the GBM (Gamma Ray Burst Monitor) instrument on the Fermi satellite and with gravitational-wave transients. DDOTI will also be used for studies of AGN (Active Galactic Nuclei) and YSO (Young Stellar Object) variability and to determine the occurrence of hot Jupiters. The principal advantage of DDOTI compared to other similar projects is cost: a single DDOTI installation costs only about US $500,000. This makes it possible to contemplate a global network of DDOTI installations. Such geographic diversity would give earlier access and a higher localization rate.We are actively exploring this option.
Publication Date: Jul 15, 2016
Document ID:
20170003743
(Acquired May 10, 2017)
Subject Category: ASTROPHYSICS
Report/Patent Number: GSFC-E-DAA-TN41808
Document Type: Conference Paper
Publication Information: Proceedings of SPIE 9910, Observatory Operations: Strategies, Processes, and Systems VI, ; p. 99100G; Volume 9910
Meeting Information: 6th Proceedings of SPIE 9910, Observatory Operations: Strategies, Processes, and Systems; 26 Jun. 2016; Edinburgh; United Kingdom
Meeting Sponsor: International Society for Optical Engineering; Bellingham, WA, United States
Contract/Grant/Task Num: NNG17PT01A; UNAM-260369; UNAM-271117; UNAM-IG100414
Financial Sponsor: NASA Goddard Space Flight Center; Greenbelt, MD United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD United States
Description: 11p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: IMAGES; TRANSIENT RESPONSE; CHARGE COUPLED DEVICES; GAMMA RAY BURSTS; TELESCOPES; FIELD OF VIEW; ASTRONOMICAL PHOTOGRAPHY; POSITION (LOCATION); ROBOTICS; COSTS; ACTIVE GALACTIC NUCLEI; GRAVITATIONAL WAVES; FERMI GAMMA-RAY SPACE TELESCOPE; SWIFT OBSERVATORY; GAMMA RAY ASTRONOMY; COMMERCIAL OFF-THE-SHELF PRODUCTS; LOWER CALIFORNIA (MEXICO)
Other Descriptors: WIDE-FIELD IMAGERS; ROBOTIC TELESCOPES; OPTICAL TRANSIENTS; GAMMA-RAY BURSTS; GRAVITATIONAL-WAVE TRANSIENTS; SYNOPTIC OBSERVATIONS
Availability Source: Other Sources
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