A5021443169- Astro and Planetary Science
- Isotope Analysis in Ecology
- Nuclear Physics and Applications
- Planetary Science and Exploration
- Gamma-ray bursts and supernovae
- Astronomical Observations and Instrumentation
- Space Exploration and Technology
- Geophysics and Gravity Measurements
- Atmospheric Ozone and Climate
- Pulsars and Gravitational Waves Research
- Astronomy and Astrophysical Research
- Solar and Space Plasma Dynamics
- SAS software applications and methods
- Astrophysics and Cosmic Phenomena
- Stellar, planetary, and galactic studies
- Atomic and Subatomic Physics Research
- Historical Geography and Cartography
- Advanced Frequency and Time Standards
- Mass Spectrometry Techniques and Applications
- Semiconductor Lasers and Optical Devices
- Network Time Synchronization Technologies
- Spacecraft and Cryogenic Technologies
- Scientific Research and Discoveries
- Astrophysical Phenomena and Observations
- Methane Hydrates and Related Phenomena
University of Arizona
2008-2024
Planetary Science Institute
2009-2022
Catalina Scientific (United States)
2021
University of West Florida
2021
We report on the results from first six months of Catalina Real-Time Transient Survey (CRTS). In order to search for optical transients (OTs) with timescales minutes years, CRTS analyses data Sky which repeatedly covers 26,000 square degrees sky. The provides a public stream that are bright enough be followed up using small telescopes. Since beginning survey, all have been made available astronomers around world in real time HTML tables,RSS feeds, and VOEvents. As part our outreach program,...
We present ∼47,000 periodic variables found during the analysis of 5.4 million variable star candidates within a 20,000 deg2 region covered by Catalina Surveys Data Release-1 (CSDR1). Combining these with type ab RR Lyrae from our previous work, we produce an online catalog containing periods, amplitudes, and classifications for ∼61,000 variables. By cross-matching those prior surveys, find that >90% ∼8000 known in survey are recovered. For sources, excellent agreement between values...
The June 2, 2018, impact of asteroid 2018 LA over Botswana is only the second detected in space prior to impacting land. Here, we report on successful recovery meteorites. Additional astrometric data refine approach orbit and define spin period shape asteroid. Video observations fireball constrain asteroid's position its were used triangulate location fireball's main flare Central Kalahari Game Reserve. 23 meteorites recovered. A consortium study eight these classifies Motopi Pan as a HED...
Abstract We present Searches After Gravitational-waves Using ARizona Observatories (SAGUARO), a comprehensive effort dedicated to the discovery and characterization of optical counterparts gravitational-wave (GW) events. SAGUARO utilizes ground-based facilities ranging from 1.5 10 m in diameter, located primarily Northern Hemisphere. provide an overview SAGUARO’s telescopic resources, its pipeline for transient detection, database candidate visualization. describe component, which 5 deg 2...
Abstract We present a comprehensive analysis of 653 optical candidate counterparts reported during the third gravitational-wave (GW) observing run. Our sample concentrates on candidates from 15 events (published in GWTC-2, GWTC-3, or not retracted GraceDB) that had >1% chance including neutron star order to assess their viability as true kilonovae. In particular, we leverage tools available real time, pre-merger detections and cross-matching with catalogs (i.e., point-source,...
Abstract With the conclusion of third observing run for Advanced LIGO/Virgo (O3), we present a detailed analysis both triggered and serendipitous observations 17 gravitational-wave (GW) events (7 10 purely serendipitous) from Searches After Gravitational-waves Using ARizona Observatories (SAGUARO) program. We searched total 4935 deg 2 down to median 5 σ transient detection depth 21.1 AB mag using Mt. Lemmon 1.5 m telescope, discovery engine SAGUARO. In addition within 24 hr, our search...
Abstract We present upgraded infrastructure for Searches After Gravitational waves Using ARizona Observatories (SAGUARO) during LIGO, Virgo, and KAGRA’s fourth gravitational-wave (GW) observing run (O4). These upgrades implement many of the lessons we learned after a comprehensive analysis potential electromagnetic counterparts to GWs discovered previous run. have developed new web-based target observation manager (TOM) that allows us coordinate sky surveys, vet counterparts, trigger...
Time domain science forms an increasing fraction of astronomical programs at many facilities. Synoptic and targeted observing modes transient, varying, moving sources rely on precise clocks to provide the underlying time tags. Often precision is mistaken for accuracy, or signals never reach instrumentation in first place. We will discuss issues deploying a stable high-precision GNSS clock remote mountaintop, conveying resulting computer way that permits hardware timestamping camera shutter...