663 research outputs found
IVOA Recommendation: Simple Cone Search Version 1.03
This specification defines a simple query protocol for retrieving records
from a catalog of astronomical sources. The query describes sky position and an
angular distance, defining a cone on the sky. The response returns a list of
astronomical sources from the catalog whose positions lie within the cone,
formatted as a VOTable. This version of the specification is essentially a
transcription of the original Cone Search specification in order to move it
into the IVOA standardization process
IVOA Recommendation: IVOA Credential Delegation Protocol Version 1.0
The credential delegation protocol allows a client program to delegate a
user's credentials to a service such that that service may make requests of
other services in the name of that user. The protocol defines a REST service
that works alongside other IVO services to enable such a delegation in a secure
manner. In addition to defining the specifics of the service protocol, this
document describes how a delegation service is registered in an IVOA registry
along with the services it supports. The specification also explains how one
can determine from a service registration that it requires the use of a
supporting delegation service
Connecting the time domain community with the Virtual Astronomical Observatory
The time domain has been identified as one of the most important areas of
astronomical research for the next decade. The Virtual Observatory is in the
vanguard with dedicated tools and services that enable and facilitate the
discovery, dissemination and analysis of time domain data. These range in scope
from rapid notifications of time-critical astronomical transients to annotating
long-term variables with the latest modeling results. In this paper, we will
review the prior art in these areas and focus on the capabilities that the VAO
is bringing to bear in support of time domain science. In particular, we will
focus on the issues involved with the heterogeneous collections of (ancillary)
data associated with astronomical transients, and the time series
characterization and classification tools required by the next generation of
sky surveys, such as LSST and SKA.Comment: Submitted to Proceedings of SPIE Observatory Operations: Strategies,
Processes and Systems IV, Amsterdam, 2012 July 2-
IVOA Recommendation: VOResource: an XML Encoding Schema for Resource Metadata Version 1.03
This document describes an XML encoding standard for IVOA Resource Metadata,
referred to as VOResource. This schema is primarily intended to support
interoperable registries used for discovering resources; however, any
application that needs to describe resources may use this schema. In this
document, we define the types and elements that make up the schema as
representations of metadata terms defined in the IVOA standard, Resource
Metadata for the Virtual Observatory [Hanicsh et al. 2004]. We also describe
the general model for the schema and explain how it may be extended to add new
metadata terms and describe more specific types of resources
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