Information on Service 'OGLE lightcurves table'

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Further access options are discussed below

This form allows the selection of Lightcurve points for the entire OGLE Varibale Star Collection. Enjoy

For a list of all services and tables belonging to this service's resource, see Information on resource 'Combined lightcurve tables with all PP for all objects from OGLE Variable Star Collection'

Service Documentation

The original OCVS data are provided as a set of tables with stellar parameters, split by variable-star class and sky field. Indeed, different variability classes have different sets of parameters. We preserve the division by variability class, but aggregate stars of a given class from all fields into unified tables with corresponding names, such as cepheids for Classical Cepheids or eclipsing for Eclipsing Binaries and so on. This allows more precise, variability-class–specific queries.

All observed objects, together with their basic parameters, are aggregated in the object_all table, which facilitates generic queries across all classes. This table is served via Cone Search.

The ts_ssa table is the main table for light-curve queries. It is served by TAP and SSA services. The time series themselves, as well as previews of folded and unfolded light curves, can be accessed via DataLink from the ts_ssa and ObsCore tables. Direct links to previews of folded curves are placed in the preview column of both the ts_ssa and ObsCore tables.

ADQL Query Examples

Download all RR Lyrae light curves with period in [0.5–0.7 days] range in the I band:

SELECT ssa_targname, accref, o.period FROM ogle.ts_ssa AS t JOIN ogle.rrlyr AS o
ON t.ssa_targname = o.object_id
WHERE o.period BETWEEN 0.5 AND 0.7 AND t.ssa_bandpass = 'I'

Download all previews of the light curves with epochs (time of maximum brightness) in the future:

SELECT * from ogle.objects_all WHERE epoch > ivo_to_mjd('2027-01-01')

Find all stars with periods longer than the duration of observations in I filter:

SELECT o.* FROM ogle.objects_all o JOIN ogle.ts_ssa t ON o.object_id = t.ssa_targname
AND t.ssa_bandpass='I' WHERE o.period > ssa_timeext

Select ten eclipsing binary systems, classified as "Contact" with the longest periods:

SELECT TOP 10 accref, preview, o.* FROM ogle.eclipsing o JOIN ogle.ts_ssa t ON o.object_id = t.ssa_targname
WHERE subtype='C' and ssa_length>100 ORDER BY o.period DESC

Overview

You can access this service using:

This service is published as follows:

local means it is listed on our front page, ivo_managed means it has a record in the VO registry.

Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

NameTable Head DescriptionUnitUCD
object_id Star ID Object identifier for this photometry point N/A meta.id;meta.main
ogle_phase Project Phase OGLE project phase code (0–4): 2 = OGLE II, 3 = OGLE III, 4 = OGLE IV; 0 = not specified N/A meta.id;meta.dataset
passband Filter Bandpass (i.e., rough spectral location) of this dataset N/A instr.bandpass

Default Output Fields

The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.

NameTable Head DescriptionUnitUCD
mag_err Magnitude error Estimation of magnitude error mag stat.error;phot.mag
magnitude Magnitude Stellar magnitude mag phot.mag
object_id Star ID Object identifier for this photometry point N/A meta.id;meta.main
obs_time Obs Time mjd of the photometry point d time.epoch
ogle_phase Project Phase OGLE project phase code (0–4): 2 = OGLE II, 3 = OGLE III, 4 = OGLE IV; 0 = not specified N/A meta.id;meta.dataset
passband Filter Bandpass (i.e., rough spectral location) of this dataset N/A instr.bandpass

VOTable Output Fields

The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.

NameTable Head DescriptionUnitUCD Verb. Level
object_id Star ID Object identifier for this photometry point N/A meta.id;meta.main 1
passband Filter Bandpass (i.e., rough spectral location) of this dataset N/A instr.bandpass 15
obs_time Obs Time mjd of the photometry point d time.epoch 20
magnitude Magnitude Stellar magnitude mag phot.mag 20
mag_err Magnitude error Estimation of magnitude error mag stat.error;phot.mag 20
ogle_phase Project Phase OGLE project phase code (0–4): 2 = OGLE II, 3 = OGLE III, 4 = OGLE IV; 0 = not specified N/A meta.id;meta.dataset 20

If you use or refer to the data obtained from this catalog in your scientific work, please cite the appropriate papers:
bibcode:2015AcA....65....1U (OGLE-IV photometry)
bibcode:2008AcA....58...69U (OGLE-III photometry)

Citation Info

VOResource XML (that's something exclusively for VO nerds)