The TESS Input Catalog is a comprehensive collection of 1.73 billion sources on the sky, providing stellar parameters for evaluation of potential planetary transit signals. It combines sources from many other catalogs, including 2MASS, LAMOST, SuperBlink, HSOY, RAVE, APOGEE, UCAC, KIC, EPIC, Tycho-2, APASS, AllWISE, SDSS, Gaia DR2, and Hipparcos. It was constructed for the TESS mission to serve as a source for selecting targets to observe with the TESS two-minute cadence, and to provide stellar parameter information for evaluating the properties of transit candidates.
The MAST Archive at STScI TAP end point for the TESS Input Catalog (TIC), currently version 8.2.
The Table Access Protocol (TAP) lets you execute queries against our database tables, and inspect various metadata. Upload is not currently supported.
The Hubble Space Telescope’s (HST) Ultraviolet Legacy Library of Young Stars as Essential Standards (ULLYSES) program is an ultraviolet spectroscopic library of young high- and low-mass stars in the local universe.
The Table Access Protocol (TAP) lets you execute queries against our database tables, and inspect various metadata. Upload is not currently supported.
TITAN is a computer program for calculating the interactions of a dilute plane-parallel medium with electromagnetic radiation. It includes all atomic processes: absorption, recombination, diffusion, excitation, deexcitation of atoms and ions, heating and cooling of the gas, and it solves the radiation transfer, in order to obtain the spectra reemitted by the medium. It handles plan parallel slabs in non LTE steady state, for various physical conditions and various illuminations, valid in many astrophysical situations. It is specifically designed for warm-hot (8000 to 10**8 K) and thick media (till an electron scattering optical depth of several tens) emitting and absorbing in the X-ray range (density from 10**5 to 10**14 cm-3). It computes the physical parameters, ionisation degrees, temperature, density, and the spectrum of the radiated light in each point of the slab, by solving simultaneously the ionisation equations, the equations of statistical equilibrium, the thermal equations and the radiation transfer, using iteration processes.
The Multi-Order Coverage map method (MOC) is dedicated to specify arbitrary sky regions.
The goal is to be able to provide a very fast comparison mechanism between coverage maps.
The mechanism is based on the HEALPix sky tessellation algorithm.
It is essentially a simple way to map regions of the sky into hierarchically
grouped predefined cells.
Observation Data Model Core Components
and its Implementation in the Table Access Protocol
Date:
10 May 2017 08:00:00
Publisher:
IVOA
Description:
This document defines the core components of the Observation data model
that are necessary to perform data discovery when querying data centers
for astronomical observations of interest. It exposes use-cases to be carried out,
explains the model and provides guidelines for its implementation as a data access
service based on the Table Access Protocol (TAP).
It aims at providing a simple model easy to understand and to implement by data
providers that wish to publish their data into the Virtual Observatory. This
interface integrates data modeling and data access aspects in a single service and
is named ObsTAP. It will be referenced as such in the IVOA registries.
In this document, the Observation Data Model Core Components (ObsCoreDM) defines
the core components of queryable metadata required for global discovery of
observational data. It is meant to allow a single query to be posed to TAP
services at multiple sites to perform global data discovery without having to
understand the details of the services present at each site. It defines a minimal
set of basic metadata and thus allows for a reasonable cost of implementation by
data providers. As with most of the VO Data Models, ObsCoreDM makes use of STC,
Utypes, Units and UCDs. The ObsCoreDM can be serialized as a VOTable. ObsCoreDM
can make reference to more complete data models such as Characterisation DM,
Spectrum DM or Simple Spectral Line Data Model (SSLDM). ObsCore shares a large set
of common concepts with DataSet Metadata Data Model (Cresitello-Dittmar et al. 2016)
which binds together most of the data model concepts from the above models in a
comprehensive and more general frame work. This current specification on the
contrary provides guidelines for implementing these concepts using the TAP protocol
and answering ADQL queries. It is dedicated to global discovery.
WFAU, Institute for Astronomy, University of Edinburgh
Description:
This service hosts the public releases of the ATLAS Survey housed at the Wide Field Astronomy Unit at the Univeristy of Edinburgh, as well as a number of other external datasets for which WFAU has neighbour tables, that can be cross matched with ATLAS. The initial aim of ATLAS is to survey 4500 deg2 of the Southern Sky at high galactic latitudes to comparable depths to the SDSS in the North. The VST ATLAS will be the first step towards a panoramic digital survey of the Southern Sky in the optical bands. The ATLAS will complement the proposed VISTA Hemisphere Survey in the South.
The OSUG Virtual Observatory'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: epn_core from the sshade_spectra schema, obscore from the ivoa schema, columns, groups, key_columns, keys, schemas, tables from the tap_schema schema.
