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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk WASP getting started
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Horne 2006
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Horne 2002
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Mass-Radius Relation Radius and inclination from transits Mass from inclination and radial velocity
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Aperture Horne 2002
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk LSST WASP Optics: sky coverage and depth 11cm aperture 16 CCDs 2.5% of sky 8m aperture - 750 CCDs – 0.02% of sky 1% of sky with 1 CCD
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk 11cm aperture; f/1.8 16 CCDs; 1000 sqr deg
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Survey Grasp ApertureFOVGrasp WASP0.11m8deg0.77x16=12.4 INT-WFC2.5m0.5deg1.6 VST2.6m1deg6.8
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk INT WASP VST Parameter Space For flat logN-logS, best to survey shallow and wide WASP will find the rare bright examples of variable objects
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk SuperWASP 8 cameras –Each 8x8 deg FOV –Detection limit: V~16 –1% photometry to V~12 5 cameras operated for 6 months during 2004
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk WASP-South
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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1 sec exposure with four cameras Orion with WASP-N
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WASP-N –Operated with 5 cameras for 5 months in 2004 –2004 data reduced and available in archive –Operations with 8 cameras due to begin in April 2006 WASP-S –Operations recently begun with 8 cameras Status
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Star counts Archive contents: August 2005
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Number of observations Archive contents: August 2005
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Archive contents: 11 Feb 2006 6,712,926 stars
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Archive contents: 11 Feb 2006 6,712,926 stars; 12,791,907,925 observations
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Archive contents: 11 Feb 2006 6,712,926 stars; 12,791,907,925 observations
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk WASP Archive Designed and built by Richard West (Leicester) –development on-going; issues of scaling and access times –documentation at http://www.wasp.le.ac.uk/archive/ Archive use is a two stage process 1.Search the catalogue for objects of interest 2.Download and analyse light curves Access is via command-line-driven perl scripts –use of web-protocols to be firewall compatible Philosophy is avoid reinventing the wheel 1.Data served as FITS files, so compatible with existing software 2.Each user can use their favourite scripting language (e.g. IDL) 3.Expect users to share analysis tools for common tasks 4.Users can also share results via new database tables
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Archive contents: 11 Feb 2006 6,712,926 stars pl_sky.qin
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk The WASP Archive User interface via perl scripts –wcatquery – filter database tables to select objects of interest –wlcextract – download light curves for selected objects Bulk photometry Catalogue database tables Archive software Remote user Internet Archive
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk wcatquery > wcatquery –qryfile=filename.qry 1SWASP J141609.92+512202.0 214.041369 51.367231 4.640000 1 1SWASP J152617.38+342009.5 231.572433 34.335994 4.650000 1 1SWASP J173055.37+310929.2 262.730717 31.158136 5.110000 1 1SWASP J165258.05+314206.0 253.241906 31.701675 5.180000 1 1SWASP J170136.36+333405.7 255.401503 33.568267 5.260000 1 1SWASP J170330.21+352450.5 255.875897 35.414053 5.460000 2 1SWASP J163102.78+351330.2 247.761597 35.225061 5.480000 5 1SWASP J113832.32+333733.0 174.634678 33.625833 5.520000 1 1SWASP J103330.91+345919.2 158.378794 34.988694 5.540000 2 1SWASP J153848.85+344030.1 234.703547 34.675039 5.570000 4 1SWASP J173608.10+281106.3 264.033756 28.185089 5.590000 2 1SWASP J165043.14+323313.2 252.679792 32.553667 5.610000 2 1SWASP J103752.26+340443.0 159.467772 34.078625 5.630000 1 1SWASP J173149.58+282426.9 262.956586 28.407494 5.650000 2 1SWASP J123347.41+332304.8 188.447561 33.384669 5.660000 1 1SWASP J174041.18+311714.9 265.171611 31.287483 5.730000 1 1SWASP J170217.10+315302.7 255.571286 31.884108 5.770000 2 1SWASP J172644.24+481536.2 261.684339 48.260064 5.770000 1 1SWASP J164351.68+340219.6 250.965361 34.038803 5.860000 2 1SWASP J103151.37+322246.3 157.964064 32.379553 5.860000 1
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk WASP Query Language (WQL) # Example WQL query # load database tables (main table available by default) using photsummary # select attributes to be returned display obj_id, ra, declination, usno_rmag1, npts # format for output file qdat/text/html format text # filters filter npts > 0 filter usno_rmag1 < 10.0
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk wcatquery > wcatquery –qryfile=filename.qry -outfile=filename.txt # Example WQL query # load database tables (main table available by default) using photsummary # select attributes to be returned display obj_id, ra, declination, usno_rmag1, npts # format for output file qdat/text/html format text # filters filter npts > 0 filter usno_rmag1 < 10.0
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Catalogue tables Root (available by default)
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Catalogue tables Photsummary (derived from WASP data) Fieldnames
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Catalogue tables GCVS (cross-correlations) Also Veron, ROSAT… Analysis results…
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk wcatquery > wcatquery –qryfile=filename.qry 1SWASP J141609.92+512202.0 214.041369 51.367231 4.640000 1 1SWASP J152617.38+342009.5 231.572433 34.335994 4.650000 1 1SWASP J173055.37+310929.2 262.730717 31.158136 5.110000 1 1SWASP J165258.05+314206.0 253.241906 31.701675 5.180000 1 1SWASP J170136.36+333405.7 255.401503 33.568267 5.260000 1 1SWASP J170330.21+352450.5 255.875897 35.414053 5.460000 2 1SWASP J163102.78+351330.2 247.761597 35.225061 5.480000 5 1SWASP J113832.32+333733.0 174.634678 33.625833 5.520000 1 1SWASP J103330.91+345919.2 158.378794 34.988694 5.540000 2 1SWASP J153848.85+344030.1 234.703547 34.675039 5.570000 4 1SWASP J173608.10+281106.3 264.033756 28.185089 5.590000 2 1SWASP J165043.14+323313.2 252.679792 32.553667 5.610000 2 1SWASP J103752.26+340443.0 159.467772 34.078625 5.630000 1 1SWASP J173149.58+282426.9 262.956586 28.407494 5.650000 2 1SWASP J123347.41+332304.8 188.447561 33.384669 5.660000 1 1SWASP J174041.18+311714.9 265.171611 31.287483 5.730000 1 1SWASP J170217.10+315302.7 255.571286 31.884108 5.770000 2 1SWASP J172644.24+481536.2 261.684339 48.260064 5.770000 1 1SWASP J164351.68+340219.6 250.965361 34.038803 5.860000 2 1SWASP J103151.37+322246.3 157.964064 32.379553 5.860000 1
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Archive contents: 11 Feb 2006 6,712,926 stars pl_sky.qin
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Analysis tasks Individual light curves Variability selection Period searches Advanced/custom analysis
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk cone 220.5 31.1 0.005 cone 08h30m 45d15m30s 15s cone "Her X-1" 0.25m > wcatquery –qryfile=filename.qry 1SWASP J165749.80+352032.8 254.457536 35.342456 13.880000 1072 > wlcextract –object=’1SWASP J165749.80+352032.8’ > ls 1SWASPJ165749.80+352032.8.fits Individual objects. # filters
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Her X-1
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Her X-1 Flux2 Rmag~13.9 pl_lc_all.qin
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pl_lc.qin
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pl_lc_nights.qin
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pl_lomb.qin
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pl_lfold.qin
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Analysis tasks Individual light curves Variability selection Period searches Advanced/custom analysis
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pl_sky.qin
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk wcatquery display obj_id, ra, declination, usno_rmag1, \ npts, flux_mean, flux_chisq, blend_fraction # filters filter field = “SW1543+3126” # remembering to load all necessary database tables using photsummary, fieldnames. # select attributes to be returned
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk WQL query file display obj_id, ra, declination, usno_rmag1, \ npts, flux_mean, flux_chisq, blend_fraction # filters filter field = “SW1543+3126” filter npts > 100 filter 244.549 < ra < 257.511 filter 25.5844 < declination < 37.3809 filter blend_fraction = 0.0. # select attributes to be returned
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pl_sky.qin
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pl_chi_lc3.qin
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Blend fraction < 6 % Blend fraction > 10 % pl_chi_lc3.qin
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Ghost images
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pl_chi_lc3.qin
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pl_sky.qin
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk pl_chi_lc3.qin
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pl_sky.qin
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Analysis tasks Individual light curves Variability selection Period searches Advanced/custom analysis
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk WQL query file display obj_id, ra, declination, usno_rmag1, \ npts, flux_mean, flux_chisq, blend_fraction # filters filter npts > 100 filter 244.549 < ra < 257.511 filter 25.5844 < declination < 37.3809 filter blend_fraction = 0.0. # select attributes to be returned
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk WQL query file using photsummary, rosat # select attributes to be returned display obj_id, ra, declination, usno_rmag1, \ npts, flux_mean, flux_chisq, blend_fraction, \ name, rate, rate_err, separation # filters filter separation >= 0.0. # load database tables using photsummary
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk 1SWASPJ165749.80+352032.8.fits 1SWASPJ162340.13+352910.6.fits 1SWASPJ162406.56+344241.9.fits 1SWASPJ162531.70+335908.0.fits 1SWASPJ162700.83+324327.1.fits 1SWASPJ162721.01+345927.4.fits 1SWASPJ162814.75+345413.0.fits 1SWASPJ162826.61+320807.7.fits 1SWASPJ162829.56+343149.4.fits 1SWASPJ162929.13+341622.2.fits 1SWASPJ162946.59+281038.0.fits 1SWASPJ163018.58+342734.9.fits 1SWASPJ163137.18+343222.9.fits... Download light curves > wcatquery –qryfile=filename.qry > filename.txt > wlcextract –file=filename.txt > ls
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Beta Lyra W UMa Unknown
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Feedback Returning your results to the archive
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Analysis tasks Individual light curves Variability selection Period searches Advanced/custom analysis
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Required tools wcatquery & wlcextract your favourite plotting software your favourite scripting language
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Pulsating stars Contact binaries Eclipsing binaries Pulsating stars Advanced/custom analysis Brett, West & Wheatley 2004 MNRAS 353, 369
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Conclusions Full set of 2004 data available in archive Can be analysed with simple tools and familiar software Philosophy –Borrow and share analysis tools –Return your results to archive Be aware of spurious variability associated with: –blending –ghost images –satellite trails –overlapping fields –and …?
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WASP: getting started Peter Wheatley p.j.wheatley@warwick.ac.uk Overview of key archive functionality Workflows from a user’s perspective Aim to show: –easy to use –powerful
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