Subject: surveys / Publisher: The GAVO DC team / Content Level: Research

ID:: ivo://org.gavo.dc/apass/q/cone
Title:: AAVSO Photometric All Sky Survey (APASS) DR10
Short Name:: APASS DR10 cone
Date:: 27 Dec 2024 08:31:05
Publisher:: The GAVO DC team
Description:: 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.

ID:: ivo://org.gavo.dc/bgds/l/meanphot
Title:: BGDS Mean Photometry Cone Search
Short Name:: BGDS mean phot
Date:: 27 Dec 2024 08:31:01
Publisher:: The GAVO DC team
Description:: 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.

ID:: ivo://org.gavo.dc/bgds/q/sia
Title:: Bochum Galactic Disk Survey (BGDS) images
Short Name:: bgds sia
Date:: 27 Dec 2024 08:31:07
Publisher:: The GAVO DC team
Description:: The Bochum Galactic Disk Survey is a project to monitor the stellar content of the Galactic disk in a 6 degree wide stripe centered on the Galactic plane. The data has been recorded from September 2010 to September 2019 with the RoBoTT Telecsope at the Universitaetssternwarte Bochum near Cerro Armazones in the Chilean Atacama desert. It contains measurements of more than 2x10^7 stars. The second and final data release contains follow-up observations from January 2017 to September 2019 in Sloan r and i and intermittent measurements in Johnson UVB, Sloan z and the narrowbands OIII, NB, Halpha and SII.

ID:: ivo://org.gavo.dc/bgds/l/ssa
Title:: Bochum Galactic Disk Survey (BGDS) light curves
Short Name:: BGDS TS SSAP
Date:: 27 Dec 2024 08:31:01
Publisher:: The GAVO DC team
Description:: This service exposes the light curves of stars produced by the Bochum Galactic Disk Survey; several million light curves are provided in the SDSS i and r bands. The lightcurves are published per-band and are also available through obscore.

ID:: ivo://org.gavo.dc/dfbsspec/q/spectra
Title:: Digitized First Byurakan Survey (DFBS) Extracted Spectra
Short Name:: dfbsspec.spectra
Date:: 27 Dec 2024 08:31:13
Publisher:: The GAVO DC team
Description:: This table contains basic metadata as well as the spectra from the Digital First Byurakan Survey (DFBS).

ID:: ivo://org.gavo.dc/dfbsspec/q/getssa
Title:: Digitized First Byurakan Survey (DFBS) Spectra Query Service
Short Name:: DFBS SSAP
Date:: 27 Dec 2024 08:31:13
Publisher:: The GAVO DC team
Description:: The First Byurakan Survey (FBS) is the largest and the first systematic objective prism survey of the extragalactic sky. It covers 17,000 sq.deg. in the Northern sky together with a high galactic latitudes region in the Southern sky. The FBS has been carried out by B.E. Markarian, V.A. Lipovetski and J.A. Stepanian in 1965-1980 with the Byurakan Observatory 102/132/213 cm (40"/52"/84") Schmidt telescope using 1.5 deg. prism. Each FBS plate contains low-dispersion spectra of some 15,000-20,000 objects; the whole survey consists of about 20,000,000 objects.

ID:: ivo://org.gavo.dc/gdr2dist/q/cone
Title:: 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

ID:: ivo://org.gavo.dc/gedr3dist/q/cone
Title:: Gaia DR3 Lite Distances Subset Cone Search
Short Name:: DR3 lite+dist
Date:: 27 Dec 2024 08:31:06
Publisher:: The GAVO DC team
Description:: 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.

ID:: ivo://org.gavo.dc/gedr3auto/q/main
Title:: Gaia eDR3 Autocorrelation
Short Name:: gedr3auto.main
Date:: 27 Dec 2024 08:31:05
Publisher:: The GAVO DC team
Description:: This is a table that simply gives, for each object in Gaia eDR3, the identifier of its closest neighbour together with the distance of the pair.

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