A5062772533- Astronomical Observations and Instrumentation
- Calibration and Measurement Techniques
- Astronomy and Astrophysical Research
- Sensor Technology and Measurement Systems
- Scientific Measurement and Uncertainty Evaluation
- Astrophysical Phenomena and Observations
- Adaptive optics and wavefront sensing
- Stellar, planetary, and galactic studies
- Particle Detector Development and Performance
- Advanced Measurement and Metrology Techniques
- Astro and Planetary Science
- Optical Systems and Laser Technology
- Atmospheric Ozone and Climate
- Data Management and Algorithms
- Advanced Computational Techniques and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Seismology and Earthquake Studies
- CCD and CMOS Imaging Sensors
- Scientific Computing and Data Management
- Astrophysics and Star Formation Studies
- Geochemistry and Geologic Mapping
- Nuclear Physics and Applications
- Advanced Database Systems and Queries
- Gamma-ray bursts and supernovae
- Space Satellite Systems and Control
Smithsonian Astrophysical Observatory
2000-2011
Center for Astrophysics Harvard & Smithsonian
2004
The Chandra Source Catalog (CSC) is a general purpose virtual X-ray astrophysics facility that provides access to carefully selected set of generally useful quantities for individual sources, and designed satisfy the needs broad-based group scientists, including those who may be less familiar with astronomical data analysis in regime. first release CSC includes information about 94,676 distinct sources detected subset public ACIS imaging observations from roughly eight years mission. This...
Abstract The Chandra Source Catalog (CSC) is a virtual X-ray astrophysics facility that enables both detailed individual source studies and statistical of large samples sources detected in Advanced CCD Imaging Spectrometer High Resolution Camera-I imaging observations obtained by the Observatory. catalog provides carefully curated, high-quality, uniformly calibrated analyzed tabulated positional, spatial, photometric, spectral, temporal properties, as well science-ready data products. latter...
We present here results of the on-orbit calibration point spread function (PSF), comparing it with our predictions. discuss how PSF varies source location in telescope field view, as well spectral energy distribution source.
The first release of the Chandra Source Catalog (CSC) contains ∼95,000 X-ray sources in a total area 0.75% entire sky, using data from ∼3900 separate ACIS observations multitude different types sources. In order to maximize scientific benefit such large, heterogeneous set, careful characterization statistical properties catalog, i.e., completeness, sensitivity, false source rate, and accuracy properties, is required. Characterization efforts other large catalogs, as ChaMP Point or 2...
The mirrors flown in the Chandra Observatory are, without doubt, some of most exquisite optics ever on a space mission. Their angular resolution is matched by no other X-ray observatory, existing or planned. promise that performance, along with goal achieving 1% calibration optics' characteristics, led to decision early construction and assembly phase mission develop an accurate detailed model their support structure. This has served both engineering scientific capacities; as cross-check...
The Chandra Source Catalog (CSC) is a virtual X-ray astrophysics facility that enables both detailed individual source studies and statistical of large samples sources detected in ACIS HRC-I imaging observations obtained by the Observatory. catalog provides carefully-curated, high-quality, uniformly calibrated analyzed tabulated positional, spatial, photometric, spectral, temporal properties, as well science-ready data products. latter includes multiple types source- field-based FITS format...
We present a study of <i>Chandra's</i> optical distortions by examining the positional accuracy observed sources on HRC-I. investigate <i>Chandra</i> mirror and detector models' ability to reproduce locations simulating ~160 calibration observations AR Lac, HR 1099, LMC X-1. To mirrors more directly, we compare 63 ksec observation Orion Nebular Cluster (ONC) with positions based well-determined astrometry cluster. simulate 100 reasonably bright from Hillenbrand 1997 catalog ONC simulated...
Arundo is a USA and Norwegian based data science services software solutions company applying machine learning techniques across wide range of heavy-asset industries. Our scientists typically come from academic backgrounds where regularly utilized such as particle physics. We have recently been working with partner organizations the Oil & Gas industry, our expertise to geoscience data, including seismic, operating fields. will summarize experience using how wider those has for use cases....