Sept. 18, 2008SLUO 2008 Annual Meeting Science Opportunities with LSST David L. Burke SLAC/KIPAC.
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Transcript of Sept. 18, 2008SLUO 2008 Annual Meeting Science Opportunities with LSST David L. Burke SLAC/KIPAC.
Sept. 18, 2008 SLUO 2008 Annual Meeting
Science Opportunities with
LSST
David L. BurkeSLAC/KIPAC
Sept. 18, 2008 SLUO 2008 Annual Meeting
Outline
* Precursor R&D Studies– Systematics Limited Science– Existing Data– Simulation and Modelling
* Observing Campaigns in Support of LSST Science– Photometric calibration studies
* LSST Science Collaborations– LSST Science Book (Edition 2009)
Sept. 18, 2008 SLUO 2008 Annual Meeting
20 minute exposure on 8 m Subaru telescopePoint spread width 0.52 arcsec (FWHM)
1 arcmin (LSST FOV diameter 200 arcmin)
Sept. 18, 2008 SLUO 2008 Annual Meeting
Removal of Asymmetric PSFAnalysis of Stars in 10% LSST FOV
Raw de-trailed PSF corrected
<shear> <shear> = 0.07= 0.07
<shear> <shear> = 0.000013= 0.000013
13 a
rcm
in
(l =
100
0)
<shear> <shear> = 0.04= 0.04
Single exposure in 0.65 arcsec seeing
<shear> <shear> < 0.0001< 0.0001
How does this extrapolate to full LSST FOV?How does this work in dithered multi-epoch survey?How to combine many background-limited images?
Sept. 18, 2008 SLUO 2008 Annual Meeting
A moment to reflect …
Sept. 18, 2008 SLUO 2008 Annual Meeting
It will be a good night …
Sept. 18, 2008 SLUO 2008 Annual Meeting
A New Technique for Measurement of Atmospheric Transmission for SurveysObserving with Tololo 0.9m and 1.5m Telescopes(5 runs 15 nights in 2007 – 2008)
Fit with model SED and computed templates.
Water Vapor
O2
O3
Molecular(Rayleigh)
Demonstrated measurement of atmospheric transmission with sub-% precision.
Sept. 18, 2008 SLUO 2008 Annual Meeting
Access to LSST Data and the LSST Science Collaborations
* All raw data and derived data products will be publicly available as soon as they are generated.
– Data Access Centers (a la′ ATLAS Tier 2 Data Center)
* Data management to support a wide range of queries.
– From a junior high school student looking for images of stars and galaxies, to a large professional science collaboration wanting routine access to the entire data volume.
* The LSST Construction Project is not designed or intended to be the organization that delivers LSST science.
* To secure LSST science, we have formed semi-autonomous LSST Science Collaborations.
Sept. 18, 2008 SLUO 2008 Annual Meeting
LSST Science Collaborations
Sept. 18, 2008 SLUO 2008 Annual Meeting
Roles and Responsibilities of LSST Science Collaborations* Organization and management – spokespersons, membership
decisions, science coordinators, publication policies, speaker boards, etc ...
* Activities and deliverables of Science Collaborations.– Develop and document LSST science analyses.– Provide input to LSST final design and survey strategy.– Develop and participate in precursor studies.
– Deliver first-year commissioning science targets. The present project plan is for “first light” in 2014, and survey and science commissioning in 2015. We expect this to lead to first publications.
* LSST Science Book (2009 Edition)