Table information for 'liverpool.rawframes'


This table is available for ADQL queries and through the TAP endpoint.

Resource Description: This collection includes optical monitorings of gravitationally lensed quasars. The frames can be used to make light curves of quasar images and field objects. From quasar light curves, one may measure time delays and flux ratios, analyse variability and chromaticity, etc. These direct analyses/measurements are basic tools for different astrophysical studies, e.g., expansion rate of the Universe, mechanism of intrinsic variability in quasars, accretion disk structure, supermassive black holes, dark halos of galaxies (dust, collapsed dark matter, smoothly distributed dark matter,...)

For a list of all services and tables belonging to this table's resource, see Information on resource 'Liverpool Quasar Lens Monitoring'

Resource Reference URL: GLENDAMA web site

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

  title={Liverpool Quasar Lens Monitoring},
  author={Goicoechea, L.J. and Shalyapin, V. and Gil-Merino, R. and Ullán, A. and The {GLENDAMA} Team},
  howpublished={{VO} resource provided by the {GAVO} Data Center}


Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
accref Product key Access key for the data N/A meta.ref.url
owner Owner Owner of the data N/A N/A
embargo Embargo ends Date the data will become/became public a N/A
mime Type MIME type of the file served N/A meta.code.mime
accsize File size Size of the data in bytes byte VOX:Image_FileSize
centerAlpha Ctr. RA Approximate center of image, RA deg pos.eq.ra
centerDelta Ctr. Dec Approximate center of image, Dec deg pos.eq.dec
imageTitle Title Synthetic name of the image N/A meta.title
instId Instrument Identifier of the originating instrument N/A;instr
dateObs Obs. date Epoch at midpoint of observation d time;obs.exposure
nAxes #axes Number of axes in data N/A pos.wcs.naxes
pixelSize Axes Lengths Number of pixels along each of the axes pixel pos.wcs.naxis
pixelScale Scales The pixel scale on each image axis deg/pixel pos.wcs.scale
refFrame Ref. Frame Coordinate system reference frame N/A pos.frame
wcs_equinox Equinox Equinox of the given coordinates yr time.equinox
wcs_projection Proj. FITS WCS projection type N/A pos.wcs.ctype
wcs_refPixel Ref. pixel WCS reference pixel pixel pos.wcs.crpix
wcs_refValues Ref. values World coordinates at WCS reference pixel deg pos.wcs.crval
wcs_cdmatrix CD matrix FITS WCS CDij matrix deg/pixel pos.wcs.cdmatrix
bandpassId Bandpass Freeform name of the bandpass used N/A instr.bandpass
bandpassUnit Bandpass unit Unit of bandpass specifications (always m). N/A N/A
bandpassRefval Band Ref. Characteristic quantity for the bandpass of the image m instr.bandpass;stat.median
bandpassHi Band upper Upper limit of the bandpass (in BandPass_Unit units) m instr.bandpass;stat.max
bandpassLo Band lower Lower limit of the bandpass (in BandPass_Unit units) m instr.bandpass;stat.min
pixflags P. Flags Flags specifying the processing done (C-original; F-resampled; Z-fluxes valid; X-not resampled; V-for display only N/A meta.code
coverage Coverage Field covered by the image deg N/A
creation_date Creation Date Date of FITS file creation d time.creation
type Obs. Type Type of the observation (Science, Flat...) N/A meta.code.class
object Target Object Object observed, Simbad resolvable identifier N/A
raw_object Target Object (Header) Object observed as given in the header N/A
observatory Observed at Observatory of origin for this frame N/A;instr.obsty
telescope Telescope Telescope used to obtain the frame N/A
instrument Instrument Identifier of the originating instrument N/A N/A
detector Detector Detector used N/A;instr
exposure Exp. time Exposure time s time.duration;obs.exposure
airmass Air mass Air mass at center of observation N/A obs.airMass
moonfrac Moon illum. Fraction of illuminated area of the moon at obs. time N/A obs.param;arith.ratio
moondist Lunar dist. Lunar distance from target deg pos.angDistance
l1sat Saturated? Is the brightest object in the field saturated? N/A instr.saturation;stat.max
background Background Background in counts ct.s**-1 instr.background
seeing Seeing Estimate for seeing at observation time arcsec instr.obsty.seeing
startTime UT of obs. start UT at start of observation N/A time.start

Columns that are parts of indices are marked like this.


The following services may use the data contained in this table:


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Copyright and such:

The Liverpool robotic telescope frames have been obtained from different observational programmes conducted by the GLENDAMA team, and are in the public domain. Additional information (Liverpool Quasar Lens Monitoring project, data releases and other scientific outputs, etc) are available at the GLENDAMA Web Site.