This service provides oscillator strengths and transition
probabilities. Mainly based on experimental energy levels, these were
calculated with the pseudo-relativistic Hartree-Fock method including
core-polarization corrections.
A validator for IVOA identifiers, checking
conformity to version 2 of the specification.
The service returns results in a tabular format, where an identifier is
valid if no row with msg_type="ERROR" is present.
As per DALI, the format of the table returned can be controlled
through the RESPONSEFORMAT parameter; for machine consumption, the
most useful values for that parameter are probably json and votable.
The code used here is available at
http://svn.ari.uni-heidelberg.de/svn/gavo/hdinputs/ivoidval
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.
Band merged JHKs catalogue for first epoch data from CASU v1.3. VVV
DR1, corrected for header errors (Mike Irwin, Private Communication).
Release of the Milky Way bulge and southern plane from the
near-infrared ESO public survey VISTA variables in the Vía Láctea.
The catalog 1WHSP is the result of a multi-frequency selection for
blazars like SED, further filtered using IR-radio and IR-X-ray
flux-ratios. The sample assembled contains almost 992 sources of HSP
blazars, of which 425 are previously known blazars, 151 new
identifications and 416 blazar candidates. On the very high energy
trend, 299 are confirmed GeV gamma-ray photons emitters and 36 have
already been detected in the TeV band.
The Wide-Field Plate Database (WFPDB_) contains the descriptive information
for the astronomical wide-field (>1°) photographic observations stored in
numerous archives all over the world. The total number of these
observations, obtained since the end of the 19th century with more
then 200 instruments (telescopes) is about 2 550 000 from 509 archives.
The WFPDB is continually being updated, providing currently access to the
information for about 640 000 plates from 117 plate archives (30% of the
estimated total number of wide-field plates)
.. _WFPDB: http://www.skyarchive.org/
The Wide-field Infrared Survey Explorer (WISE) is a space-based imaging
survey of the entire sky in the 3.4 (W1), 4.6 (W2), 12 (W3), and 22 (W4) μm
mid-infrared. This is the project's reliable Source Catalog containing
accurate photometry and astrometry for over 500 million objects.
More details are available in the `Explanatory Supplement`_, which also
has a list of `Cautionary Notes`_.
.. _Explanatory Supplement: http://wise2.ipac.caltech.edu/docs/release/allsky/expsup/sec1_1.html
.. _Cautionary Notes: http://wise2.ipac.caltech.edu/docs/release/allsky/expsup/sec1_4b.html