VLBI images of Lockman Hole radio sources

These are 1.4GHz Very Long Baseline Interferometry images of 532 radio sources with a flux density exceeding 100uJy as determined by Ibar et al. (2009, MNRAS, 397, 281), obtained between 2010-06-03 and 2010-09-03. For all fields, we give frames processed using natural weighting to preserve maximal sensitivity. For the 65 detected sources, we additionally give frames processed using uniform weighting to suppress sidelobes (see Middelberg et al. 2013, A&A 551, 97 for details) in flux density measurements. Some sources have larger images to cover a larger area because the initial coordinates were not sufficiently accurate.

Position

A spatial constraint using SIAPv2 CIRCLE, RANGE, or POLYGON shapes and respective values in decimal degrees.

Wavelength

–

Wavelength interval that should intersect with the dataset coverage

Time

–

Time interval that should intersect with the dataset coverage

Polarisation

Polarisation states as per Obscore (i.e., from the set I Q U V RR LL RL LR XX YY XY YX POLI POLA

Field of View [deg]

–

Lower and upper bound for the field of view of the observation

Spat. Res. [deg]

–

Lower and upper bound for the spatial resolution of the image(s)

Res. Power

–

Lower and upper bound for the spectral resolving power λ/Δλ in spectrally resolved observations

Exposure Time [s]

–

Lower and upper bound for the integration times of the observation

Time res. [s]

–

Lower and upper bound for the (absolute) resolution on the time axis

DID

A dataset identifier to match. Note that contrary to the SIAP v2 REC, we do not compare the IVOIDs case-insensitively. This should not be an issue if you got the IVOID from this service. For IVOIDs obtained in other ways, you may need to use ILIKE or a similar facility through ObsTAP.

Collection

A name of a data collection within the service (use ObsTAP to find out the possible values).

Facility

A name of a facility (usually a telescope) used to make the observation.

Instrument

A name of an instrument used to acquire the data.

Type

Select either image or cube.

Calib. Level

Calibration level of the data (0=raw data .. 3=processed science-ready data)

Target

A name of an observation target.

Format

Media type (like application/fits) or similar of the data product searched

Weighting

natural
uniform

Natural or uniform, according to weighting method.

Table

Sort by
Limit to items.

Output format

[Result link]

Metadata

Identifier

Cite this

Description

Keywords

Creator

Created

Data updated

Metadata updated

Source

Reference URL

VLBI images of Lockman Hole radio sources

	dataproduct_subtype -- Data product specific type
	source_table -- Name of a TAP-queriable table this data originates from. This source table usually provides more information on the the data than what is given in obscore. See the TAP_SCHEMA of the originating TAP server for details.