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Start Over Subject virtual-observatories Content Level Amateur
1. Adding catalog data to object lists using the VO
ID:
ivo://edu.gavo.org/hd/gavo_addpms
Title:
Adding catalog data to object lists using the VO
Date:
15 Aug 2024 15:17:04
Publisher:
The GAVO DC team
Description:
This brief tutorial shows you how to quickly add proper motions and photometry from Gaia to (almost) any object list using the Virtual Observatory. The VO protocol most suited to this kind of this is TAP ("table access protocol") and lets you transfer data and queries to database servers. In the example, we will be using TOPCAT as a client. There is no lock-in to it: There are libraries and other tools allowing an integration of TAP operations into arbitrary workflows – that's what standards are about. Tutorial supplements apply the techniques to Simbad, show how to use TAP from Python, and introduce UCDs.
2. A Short Course on ADQL
ID:
ivo://org.gavo.dc/misc/adqlcourse
Title:
A Short Course on ADQL
Short Name:
GAVO ADQL course
Date:
15 Aug 2024 15:17:00
Publisher:
The GAVO DC team
Description:
This is a course on the Virtual Observatory's main query language ADQL (short for Astronomical Data Query Language), which is a SQL dialect standardised so users do not have to learn new languages each time they want to use a new resource. We also introduce the basic aspects of the Table Access Protocol TAP, which transports ADQL queries, their results as well as the metadata necessary to write meaningful queries. The course comes with many exercises, most of which also have solutions. We hope it is suitable for both self-study and as lecture notes in teacher-led situations.
3. A Short Course On PyVO
ID:
ivo://org.gavo.dc/tutreg/gavo_pyvocourse/rec
Title:
A Short Course On PyVO
Short Name:
GAVO pyvo course
Date:
15 Aug 2024 15:17:14
Publisher:
The GAVO DC team
Description:
This is a course on pyVO, an astropy-affiliated Python library implementing client parts for many protocols in the Virtual Observatory: Simple discovery protocols like SCS, SIAP, and SSAP as well as the sophisticated Table Access Protocol TAP, which allows users to send complex queries to remote tables and retrieve metadata-rich results. There is also an interface to the VO Registry to enable data and service discovery. The course comes with many exercises, most of which also have solutions. We hope it is suitable for both self-study and as lecture notes in teacher-led situations.
4. Astrometric Calibration using Aladin
ID:
ivo://edu.gavo.org/gavo_aladincalib
Title:
Astrometric Calibration using Aladin
Date:
15 Aug 2024 15:17:00
Publisher:
The GAVO DC team
Description:
The VO client Aladin offers powerful facilities of creating an astrometrical calibration to images lacking WCS (World Coordinate System) information. This tutorial shows how to go about doing this for an image of the Ring Nebula in Lyr.
5. Compute Redshifts of Quasars Using SPLAT-VO
ID:
ivo://edu.gavo.org/hd/splat_redshift
Title:
Compute Redshifts of Quasars Using SPLAT-VO
Date:
15 Aug 2024 15:17:04
Publisher:
The GAVO DC team
Description:
This tutorial uses SPLAT-VO to search the VO registry for spectra of galaxies and quasars. From the obtained spectra, the Hydrogen Lyman Alpha line will be used to compute redshift and velocity
6. Confirmation of an apparent supernova
ID:
ivo://edu.gavo.org/eurovo/aida_snconfirm
Title:
Confirmation of an apparent supernova
Date:
15 Aug 2024 15:17:12
Publisher:
The GAVO DC team
Description:
Within this intermediate use case you learn about supernovae (see also the tutorial “Distance to the Crab Nebula“, ivo://edu.euro-vo.org/tutorials/08_m1_distance) and determine the celestial coordinates of a just discovered candidate supernova on an provided image without astrometric calibration. This use case provides a glimpse of an activity that is representative of the practical tasks that astronomers have to perform when they analyze data.
7. Introduction to Simulation Databases - Density Fields and Dark Matter Halos
ID:
ivo://edu.gavo.org/gavo_simulations_teachers
Title:
Introduction to Simulation Databases - Density Fields and Dark Matter Halos
Date:
15 Aug 2024 15:17:04
Publisher:
The GAVO DC team
Description:
This tutorial was created for a physics teacher workshop (~ high school level). It shows how to extract density fields and information on dark matter halos from the CosmoSim database using SQL queries. It is optimized for brevity.
8. Introduction to Simulation Databases Using CosmoSim
ID:
ivo://edu.gavo.org/gavo_simulations
Title:
Introduction to Simulation Databases Using CosmoSim
Date:
15 Aug 2024 15:17:00
Publisher:
The GAVO DC team
Description:
This tutorial shows how to do first SQL-queries on cosmological databases, including retrieving mass functions, extracting merger trees or particles of a specific dark matter halo.
9. Outlier Analysis in Low-Resolution Spectra: DFBS and Beyond
ID:
ivo://edu.gavo.org/hd/arvo_dfbs
Title:
Outlier Analysis in Low-Resolution Spectra: DFBS and Beyond
Date:
15 Aug 2024 15:17:03
Publisher:
The GAVO DC team
Description:
Low-resolution spectra like those resulting from objective prism observations or the RP/BP instrument on board of the Gaia astrometry satellite enable a wealth of interesting science. This use case investigates one use leading up to combining many VO resources: The identification of misclassified objects from reference databases.
10. Plate Scans in the VO
ID:
ivo://edu.gavo.org/hd/gavo_plates
Title:
Plate Scans in the VO
Date:
15 Aug 2024 15:16:59
Publisher:
The GAVO DC team
Description:
This tutorial introduces a few techniques for working with image services in the Virtual Observatory (VO) in general, using services containing plate scans as examples. It will discuss both exploratory, interactive use, and scripting using pyVO.