AAVSO Photometric All-Sky Survey (APASS), underway since 2010,
covers the entire sky from 7.5 < V < 16.5 magnitude, and in the BVugrizY
bandpasses. A northern and a southern site are used, each with twin ASA
20cm astrographs and Apogee Aspen CG16m cameras, covering 2.9x2.9 square
degrees with 2.6arcsec pixels. Landolt and SDSS standards are used for
all-sky solutions, with typical 0.02mag calibration errors on the bright
end.
Data Release 10 is a complete reprocessing of all 500K images taken with
the system, including hundreds of nights not part of DR9. Sextractor is
used for star finding and centroiding; DAOPHOT is used for aperture
photometry; the astrometry.net plate-solving library is used for basic
astrometry, supplanted with more precise WCS that utilizes knowledge of the
optical train distortions. With these changes, DR10 includes many more
stars than prior releases.
More information is available at http://www.aavso.org/apass.
A all-sky compilation of galactic stellar sources observed for OH
maser emission in the transitions at 1612, 1665, and 1667 MHz. The
database contains OH maser observations selected from the literature .
These observations belong to more than 6000 different objects. The
database consists of three tables: The main table ("masers"),
interferometric followup observations ("maps") and monitoring programs
("monitor").
A Database of Circumstellar OH Masers: Interferometric Followups
Short Name:
engels oh maps
Date:
27 Dec 2024 08:31:03
Publisher:
The GAVO DC team
Description:
A all-sky compilation of galactic stellar sources observed for OH
maser emission in the transitions at 1612, 1665, and 1667 MHz. The
database contains OH maser observations selected from the literature .
These observations belong to more than 6000 different objects. The
database consists of three tables: The main table ("masers"),
interferometric followup observations ("maps") and monitoring programs
("monitor").
A Database of Circumstellar OH Masers: Monitoring Programs
Short Name:
engels oh mon
Date:
27 Dec 2024 08:31:03
Publisher:
The GAVO DC team
Description:
A all-sky compilation of galactic stellar sources observed for OH
maser emission in the transitions at 1612, 1665, and 1667 MHz. The
database contains OH maser observations selected from the literature .
These observations belong to more than 6000 different objects. The
database consists of three tables: The main table ("masers"),
interferometric followup observations ("maps") and monitoring programs
("monitor").
Extracted sources from the Bochum Galactic Disk Survey. We provide
mean photometry in U, B, V, z, r, and i bands. Note that sources in
different bands are not matched. Also, sources sitting in the regions
imaged in multiple fields have not been matched even within one band.
In i and r, BGDS light curves are available. See related services for
details.
Estimated distances to 1.33 billion stars in Gaia DR2
Short Name:
gdr2dist scs
Date:
27 Dec 2024 08:31:05
Publisher:
The GAVO DC team
Description:
This catalogue provides distances estimates (and uncertainties therein)
for 1.33 billion stars over the whole sky brighter than about G=20.7.
These have been estimated using the parallaxes (and their uncertainties)
from Gaia DR2. A Bayesian procedure was used involving a prior
with a single parameter L(l,b), which varies smoothly with Galactic
longitude and latitude according to a Galaxy model. The posterior is
summarized with a point estimate (usually the mode) and a confidence
interval (usually the 68% highest density interval). The estimation
procedure is described in detail in the `accompanying paper`_,
which also analyses the catalogue content.
.. _accompanying paper: http://www.mpia.de/homes/calj/gdr2_distances.html
This schema contains data re-published from the official
Gaia mirrors (such as ivo://uni-heidelberg.de/gaia/tap) either to
support combining its data with local tables (the various Xlite tables)
or to make the data more accessible to VO clients (e.g., epoch fluxes).
Other Gaia-related data is found in, among others, the gdr2dist, gdr3mock,
gdr3spec, gedr3auto, gedr3dist, gedr3mock, and gedr3spur schemas.
This schema contains data re-published from the official
Gaia mirrors (such as ivo://uni-heidelberg.de/gaia/tap) either to
support combining its data with local tables (the various Xlite tables)
or to make the data more accessible to VO clients (e.g., epoch fluxes).
Other Gaia-related data is found in, among others, the gdr3mock,
gdr3spec, gedr3auto, gedr3dist, gedr3mock, and gedr3spur schemas.
This service returns the most important Gaia DR3 gaia_source columns
together with robust geometric and photogeometric distances for the
~1.47 billion objects in Bailer-Jones et al's distance catalogue.
High-Resolution Very Large Array Imaging of Sloan Digital Sky Survey
Stripe 82 at 1.4 GHz
Short Name:
vlastripe82 cone
Date:
27 Dec 2024 08:31:02
Publisher:
The GAVO DC team
Description:
This is a high-resolution radio survey of the Sloan Digital Sky Survey
(SDSS) Southern Equatorial Stripe, a.k.a. Stripe 82. This 1.4 GHz survey
was conducted with the Very Large Array (VLA) primarily in the
A-configuration, with supplemental B-configuration data to increase
sensitivity to extended structure. The survey has an angular resolution
of 1.''8 and achieves a median rms noise of 52 μJy per beam over 92 deg^2.
The catalog contains 17,969 isolated radio components, for an overall
source density of ∼195 sources/deg^2. See also J.A. Hodge et al,
:bibcode:`2011AJ....142....3H` .