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Session 4C

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Room: WH1W
Date: 19 Apr 13:00 - 3:30 PM

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Displaying 5 contributions out of 5
Type: Paper Session: Session 4C
ACCESS, Absolute Color Calibration Experiment for Standard Stars, is a series of rocket-borne sub-orbital missions and ground-based experiments that will enable improvements in the precision of the astrophysical flux scale through the transfer of absolute laboratory detector standards from the National Institute of Standards and Technology (NIST) to a network of stellar standards with a calib ... More
Presented by Dr. Mary Elizabeth KAISER on 19/4/2012 at 19:30
Type: Paper Session: Session 4C
J-PAS survey consists of an 8000 square degree photometric sky survey with a set of 52 narrow-band and 2 broad-band filters. The main goal is to produce a photo-redshift catalog of ~15 millions red, early-type galaxies with a precision σ(z)~0.003(1+z) to measure the Baryonic Acoustic Oscillation (BAO).Such precision requires specific care in the photometric calibration survey. This contribution p ... More
Presented by Dr. Nicolas GRUEL on 19/4/2012 at 20:10
Type: Paper Session: Session 4C
Track: Large Surveys and Missions (UV/Optical/NIR)
Hubble’s Next Generation Spectral Library (NGSL) consists of R~1000 spectra of 374 stars of assorted temperature, gravity, and metallicity. Each spectrum covers the wavelength range, 0.18-1.00 μ. The library can be viewed and/or downloaded from the website, http://archive.stsci.edu/prepds/stisngsl/. Stars in the NGSL are now being used as absolute flux standards at ground-based observatories. ... More
Presented by Dr. Sara HEAP on 19/4/2012 at 14:00
Type: Paper Session: Session 4C
We have made several significant improvements to the final cryogenic calibration of the IRAC instrument aboard the Spitzer Space Telescope. The final calibration uses the ensemble of calibration data collected over the five-plus years of the cryogenic mission and includes knowledge obtained on intrinsic photometric variations. Photometric variation with location on the array and phase of stellar ... More
Presented by Dr. Sean CAREY on 19/4/2012 at 19:50
Session: Session 4C
Track: Intercalibration between systems
Theoretical spectral energy distributions (SEDs) of white dwarfs provide a powerful tool for cross-calibration and sensitivity control of instruments from the far infrared to the X-ray energy range. Such SEDs can be calculated from fully metal-line blanketed non-LTE model-atmospheres that are e.g. computed by the Tübingen Non-LTE Model-Atmosphere Package (TMAP) that has arrived at a high level ... More
Presented by Dr. Thomas RAUCH on 19/4/2012 at 18:00
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