Search

Start Over Subject open-star-clusters
1. Explore the Pleiades with TOPCAT and Aladin
ID:
ivo://edu.gavo.org/hd/plejades
Title:
Explore the Pleiades with TOPCAT and Aladin
Date:
27 Dec 2024 08:31:12
Publisher:
The GAVO DC team
Description:
As stars in open star clusters are formed from the same matter at the same time and have only a small velocity dispersion, it is relatively easy to identify them from the background stars. In this tutorial, we will identify the members of the Pleiades kinematically and get an idea of our success by examining a color-magnitude diagram using TOPCAT, Aladin, and a few VO services.
2. MWSC Member Search
ID:
ivo://org.gavo.dc/mwsc/q/mem
Title:
MWSC Member Search
Short Name:
MWSC stars
Date:
27 Dec 2024 08:31:04
Publisher:
The GAVO DC team
Description:
MWSC presents a list of 3006 Milky Way Stellar Clusters (MWSC), found in the 2MAst (2MASS with Astrometry) catalogue. The target list was compiled on the basis of present-day lists of open, globular and candidate clusters. For confirmed clusters we determined a homogeneous set of astrophysical parameters such as membership, angular radii of the main morphological parts, mean cluster proper motions, distances, reddenings, ages, tidal parameters, and sometimes radial velocities.
3. MWSC Star Cluster Extension 2014a
ID:
ivo://org.gavo.dc/mwsc-e14a/q/clu
Title:
MWSC Star Cluster Extension 2014a
Short Name:
MWSC-e14a clu
Date:
27 Dec 2024 08:31:12
Publisher:
The GAVO DC team
Description:
MWSC-e14a ("MWSC extension 2014a") is a catalogue of 139 new open clusters at high Galactic latitudes (\|b\|>20 deg) including lists of candidate members. It extends the Kharchenko et al. 'Catalog of Milky Way Star Clusters'. The target list was compiled as density enhancements found in the 2MASS point source catalogue. For confirmed clusters we determined a homogeneous set of astrophysical parameters such as membership, angular radii of the main morphological parts, proper motion, distance, reddening, age, and tidal parameters. .. _Catalog of Milky Way Star Clusters: http://dc.g-vo.org/mwsc/q/clu/form
4. MWSC Star Cluster Search
ID:
ivo://org.gavo.dc/mwsc/q/clu
Title:
MWSC Star Cluster Search
Short Name:
MWSC clusters
Date:
27 Dec 2024 08:31:04
Publisher:
The GAVO DC team
Description:
MWSC presents a list of 3006 Milky Way Stellar Clusters (MWSC), found in the 2MAst (2MASS with Astrometry) catalogue. The target list was compiled on the basis of present-day lists of open, globular and candidate clusters. For confirmed clusters we determined a homogeneous set of astrophysical parameters such as membership, angular radii of the main morphological parts, mean cluster proper motions, distances, reddenings, ages, tidal parameters, and sometimes radial velocities.
5. The Pleiades open cluster
ID:
ivo://edu.gavo.org/eurovo/aida_pleiades
Title:
The Pleiades open cluster
Date:
27 Dec 2024 08:31:04
Publisher:
The GAVO DC team
Description:
Within this use case you recognize a physical association of stars close in space as opposed to a superpositon created by projection effects of stars very far one from the others. The key measure is distance derived from parallax. With the true members of the association (open cluster) you create a Herzsprung-Russell diagram as in the tutorial “the stars” (ivo://edu.gavo.org/eurovo/aida_stars). The Herzsprung-Russell diagram of stellar clusters is very important because of the low noise of few unrelated stars. If used in the classroom this advanced use case requires a reasonable understanding of histograms and bidimensional scatter diagrams. It is also rather long to perform from beginning to end.