GAVO data center Home

By subject
By title

A...

ADQL Query

An endpoint for submitting ADQL queries to the data center and retrieving the result in various forms.
AMANDA-II neutrino candidates

List of neutrino candidate events recorded by the AMANDA-II neutrino telescope during the period 2000-2006.
APFS HIP Simple Query

Computation of exact geocentric positions for stars from the Hipparcos catalogue.
APFS Simple Query Form

The apparent places of fundamental stars give exact geocentric positions for a selected set of FK6 stars.
ARI Catalog of Catalogs

ARI katkat is a catalog of star catalogues in the spirit of G. Teleki's catalog of star catalogs (`1989BOBeo.140..131T`_ and references in there). It contains 2573 catalogs suitable for astrometric usage, starting with Flamsteed (1835) and ending in the 1970ies. For almost all of them, there is a column description file (as PDF, and unfortunately sometimes in German) and the digitized content. .. _1989BOBeo.140..131T: http://ads.g-vo.org/abs/1989BOBeo.140..131T
ARIGFH identified objects

ARI's "Geschichte des Fixsternhimmels" is an attempt to collect all astrometrically useful observations from before ca. 1970 in a way comparable to what has been done to construct the FK* series of fundamental catalogs. About 7e6 published positions are included. In GAVO's DC, we provide tables of identified and non-identified stars together with the master catalog that objects were identified against.
ARIHIP astrometric catalogue

The catalogue ARIHIP has been constructed by selecting the 'best data' for a given star from combinations of HIPPARCOS data with Boss' GC and/or the Tycho-2 catalogue as well as the FK6. It provides 'best data' for 90 842 stars with a typical mean error of 0.89 mas/year (about a factor of 1.3 better than Hipparcos for this sample of stars).

C...

Candidates for astrometric lensing

A catalogue of candidate stars for observing astrometric lensing using GAIA.
CARS source catalogue query

Images and data from from the CFHTLS archive research survey, a multi-band dataset spanning 37 square degrees of sky in high galactic latitudes.
[P] Catalogue of Nearby Stars 4

A catalogue of stars closer than 30 pc
Computation of GAST, GMST, and ERA

Computation of Greenwich Apparent Sidereal Time, Greenwich Mean Sidereal Time, and the Earth Rotation Angle
Corrections between UCAC3 and PPMXL

Differences between UCAC3 and PPMXL in positions and proper motions, on an all-sky one-degree grid. At each gridpoint we give the differences X(PPMXL)- X(UCAC3) averaged over all stars in a sqrt(2)/2-degrees environment around the gridpoint given. The corrections given here should bring UCAC3 based astrometry to the ICRS.
Corrections between USNO-B and PPMXL

Differences between USNO-B and PPMXL in positions and proper motions, on an all-sky one-degree grid. At each gridpoint we give the differences X(PPMXL)- X(USNO-B1.0) averaged over all stars in a sqrt(2)/2-degrees environment around the gridpoint given. The corrections given here should bring USNO-B based astrometry to the ICRS.

D...

Delta-mu Binaries

A collection of binary stars with a difference in instantaneous proper motion as measured by HIPPARCOS and the long-term proper motion.
Dexter for your data

An interface to ADS' Dexter data extraction applet for usage with uploaded data

F...

Flash/Heros Spectra Web Interface

Spectra from the Flash and Heros Echelle spectrographs developed at Landessternwarte Heidelberg and mounted at La Silla and various other observatories. The data mostly contains spectra of OB stars. Heros was the name of the instrument after Flash got a second channel in 1995.

G...

Galactic OH Masers (Engels 2008)

A compilation of galactic stellar sources observed for OH maser emission in the transition at 1612, 1665, and 1667 MHz. The database contains 12725 OH maser observations at frequencies 1612, 1665, and 1667 MHz selected from the literature . These observations belong to 6245 different objects.
GAVO Data Center TAP service

The GAVO data center's TAP end point. The Table Access Protocol (TAP) lets you execute queries against our database tables, inspect various metadata, and upload your own data. It is thus the VO's premier way to access public data holdings. Tables exposed through this endpoint include: \tablesForTAP.
GAVO DC Custom Uploading Crossmatcher

A plain positional crossmatch service that allows file and URL uploads to be crossmatched to DC-internal tables. In general, you want to use TAP for this kind of thing when it is available, but in a pinch it might come in handy. Larger catalogues that can be matched against include 2MASS, USNO-B, PPMX, CARS, and more.
Global TAP Schema Simple Search

The global TAP schema collects information on tables and columns from known TAP servers. This facilitates locating queriable data by physics (via UCD) or keywords (via description).

H...

HDAP -- Heidelberg Digitized Astronomical Plates

Scans of plates obtained at Landessternwarte Heidelberg-Königstuhl and German-Spanish Astronomical Center (Calar Alto Observatory), Spain, 1900 through 1999.

L...

Lens Image Archive

A collection of images of lensed quasars from various sources. Included are images from Maidanak Observatory (ivo://org.gavo.dc/maidanak/res/rawframes/siap), Apache Point Observatory, from the MiNDSTEp project (ivo://org.gavo.dc/danish/red/q), and from the Liverpool Robotic Telescope (ivo://org.gavo.dc/liverpool/res/rawframes/q).
Light Pollution Weather

We give continuous night and day light measurements at all natural outdoor light levels by a network of low-cost lightmeters. Developed to start simple, global continuous high cadence monitoring of night sky brightness and artificial night sky brightening (light pollution) in 2009. The lightmeter network is a project of the Thüringer Landessternwarte, Tautenburg, Germany and the Kuffner-Sternwarte society at the Kuffner-Observatory, Vienna, Austria. It started as part of the Dark Skies Awareness cornerstone of the International Year of Astronomy.
Liverpool Quasar Lens Monitoring

This collection includes optical monitorings of gravitationally lensed quasars. The frames can be used to make light curves of quasar images and field objects. From quasar light curves, one may measure time delays and flux ratios, analyse variability and chromaticity, etc. These direct analyses/measurements are basic tools for different astrophysical studies, e.g., expansion rate of the Universe, mechanism of intrinsic variability in quasars, accretion disk structure, supermassive black holes, dark halos of galaxies (dust, collapsed dark matter, smoothly distributed dark matter,...)

M...

Magellanic Clouds Extinction Values

A catalogue of E(V-I) extinction values is presented for 3174 (LMC) and 693 (SMC) fields within the Magellanic Clouds. The extinction values were computed by determining the (V-I) colour difference of the red clump from Optical Gravitational Microlensing Experiment (OGLE III) observations in the V and I bands and theoretical values for unreddend red clump colours.
Maidanak Observatory Instrument Query

Instrument frames for the main mirror of Maidanak Observatory (Uzbekhistan)
Maidanak Observatory Object Query

Observations of (mainly) lensed quasars accessible through a selection of the target object
Maidanak Observatory SIAP Query

Observations of (mainly) lensed quasars from Maidanak Observatory, Uzbekhistan
MiNDSTEp Lens Images

TBD

N...

New Services in the VO RSS

New entries in the `Virtual Observatory <http://www.ivoa.net>`_'s registry in RSS format; this service lets you use a common "news aggregator" to learn of services appearing in the VO in almost real time. The data is taken from the VO registry by querying for new records twice a day. New items are announced here for 30 days. To subscribe to this feed, point your browser/news aggregator to http://vo.uni-hd.de/regrss. If you can configure your client's update frequency, for this feed it is sufficient to update every 12 hours -- it is only updated morining and afternoon UTC. New entries on these feeds are also distributed using Twitter (follow germanVO) and identi.ca (follow germanvo). The \RSTservicelink{/registryrss/q/rss/static/oai2rss.py}{underlying code} (containing a trivial OAI interface including resumptionToken handling in python) is available in the public domain.

O...

Observatory Codes

List of Observatory Codes assigned by the Minor Planet Center (MPC). The codes are used in cataloguing astrometric observations of small bodies in the solar system. A code is unique for a certain location and consists of three digits or one letter and two digits. In this representation, we give the observatory code, the geocentric coordinates, and the observatory designation.

P...

Potsdam Carte du Ciel Plates

Publication of scans of photographic plates from the so-called "Potsdam zone" of the Carte du Ciel project (32 deg to 39 deg). A total of 977 plates of 2 square degree sky regions was observed and recorded between 1913 to 1924. Since Potsdam Observatory ended participation in the Carte du Ciel project, these observations were so far not analysed or published. Plates were scanned in by a flat bed scanner in 2007-2008. Limitations in astrometric precision as well are to be expected, and specific observational restrains apply, such as multiple exposures on certain plates (see literature).
PPMX query

PPM-Extended (PPMX) is a catalogue of 18 088 919 stars on the ICRS system containing astrometric and photometric information. Its limiting magnitude is about 15.2 in the GSC photometric system.
PPMXL Cone Search

PPMXL is a catalog of positions, proper motions, 2MASS- and optical photometry of 900 million stars and galaxies, aiming to be complete down to about V=20 full-sky. It is the result of a re-reduction of USNO-B1 together with 2MASS to the ICRS as represented by PPMX.

R...

RAdial Velocity Experiment: RAVE

The third data release of the RAdial Velocity Experiment (RAVE) contains spectroscopic radial velocities for 83,072 stars in the Milky-Way southern hemisphere, obtained using the 6dF instrument at the AAO. Stellar parameters are published for a set of 39,833 stars belonging to the second and third years of observation. An accompanying paper (see "source" in metadata) describes the content of the new release, the new processing pipeline, as well as an updated calibration for the metallicity based upon the observation of additional standard stars.

S...

STC utype generator

This services converts the representations of STC objects in XML, utypes, and STC-S into each other.

T...

The Infinite Lightcurve, Images

Images from the infinite microlensing lightcurve selectable through text queries.
The Scrolling Infinite Lightcurve

A web-based GUI to the infinite microlensing lightcurve.
TheoSSA Web Interface

TheoSSA provides spectral energy distributions based on model atmosphere calculations. Currently, we serve results obtained using the Tübingen NLTE Model Atmosphere Package for hot compact stars.