This table contains line metadata computed a pseudo-relativistic
Hartree-Fock method including core-polarization corrections. Its
schema follows the first Working Draft of LineTAP.
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.
The UCAC3 all-sky CCD astrograph catalogue, minus the fields from
2MASS and SuperCosmos and matching/object flags (which can be
recovered with a local crossmatch).
The Ultracool Dwarf Companion Catalogue consists of 278 multiple
systems, 32 of which are newly discovered, each with at least one
spectroscopically confirmed Ultracool Dwarf, within a 100 pc
volume-limited sample. This catalogue is compiled using the Gaia
Catalogue of Nearby Stars for stellar primaries and the Gaia Ultracool
Dwarf Sample for low-mass companions and includes 241 doubles, 33
triples, and 4 higher-order systems established from positional,
proper motion, and parallax constraints.
This table contains the metadata for the plates that went into USNO-B
1.0 as best as we can reconstruct it (i.e., largely those that also
make up the Digital Sky Survey DSS). Most of the source files were
obtained from http://www.nofs.navy.mil/data/fchpix/, some additional
contributions came from Dave Monet.
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.
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
The SPM4 Catalog contains absolute proper motions, celestial
coordinates, and B,V photometry for 103,319,647 stars and galaxies
between the south celestial pole and -20 degrees declination. The
catalog is roughly complete to V=17.5. It is based on photographic and
CCD observations taken with the Yale Southern Observatory's
double-astrograph at Cesco Observatory in El Leoncito, Argentina.