OPEN CLUSTERS AND GALACTIC STRUCTURE
A project developed by:
Wilton S. Dias (UNIFEI);
Jacques Lépine
(IAG-USP); Bruno
S. Alessi and André
Moitinho (UL)
Reference to this catalog: please use Dias W. S., Alessi B. S., Moitinho A. and Lépine J. R. D., 2002, A&A 389, 871,
1- Introduction:
The open cluster system is of great value for the study of The Galaxy dynamics, because they span a relatively wide range of ages, that can be determined with more precision than any other spiral arm tracer. They are the key objects to understand the motion of spiral arms and moving groups of stars, to derive the rotation curve and distinguish between star formation processes. To investigate the orbits of this system, it is essential to have at our disposal accurate proper motion, radial velocities, distances and ages. Some recent works, such as Platais et al. (1998), De Zeeuw et al. (1999), Robichon et al. (1999) and Baumgardt et al. (2000) are examples of proper motion measurements of large open cluster samples in the Hipparcos system. We explore the kinematics of open clusters using the statistical method of Sanders (1971) in order to derive the cluster stars individual membership probability as well as the cluster mean proper motion based on relatively large samples of stars. This work is based on the data included in the Hipparcos Catalogue (ESA 1997) and Tycho2 catalogue (Hog et al 2000). Also, we have compiled a new Catalog of Open Clusters which updates the previous catalog of Lynga (1987) by a significative amount (more than 400 clusters) This catalog is a compact and powerful tool to study the structure of the galaxy, because it is complete containing both proper motions and radial velocities.
List of references of the adopted metallicities
2- Our Data:
Catalog of Optically Visible Open Clusters and Candidates:
Catalog of open clusters - equatorial J2000 coord. (DAML02)
Catalog of open clusters - galactic J2000 coord. (DAML02)
ReadMe
file (DAML02)
Reference
file (DAML02)
Compilation
of observational information (DAML02)
List of removed clusters
Revised Dolidze Cluster List (Kindely sent by Matthias Kronberger)
Bruno's Dirty Compilation of Clusterlike Things (Kindely sent by Bruno Alessi - jan-10-2013)
3- Proper motions and membership probabilities:
4- Other Catalogues and lists:
Global survey of star clusters in the Milky Way. I. The pipeline and fundamental parameters in the second quadrant
(Kharchenko, N. V., et al., 2012, A&A 543, 156K)
SAI Open Clusters Catalog
(Glushkova, E. V. et al, 2010, AstL 36, 75G)
Astrophysical
parameters of Galactic open clusters
(Kharchenko, N. V.; Piskunov, A. E.; Röser, S.; Schilbach, E.; Scholz, R.-D., 2005, A&A 438, 1163)
109
new Galactic open clusters
(Kharchenko, N. V.; Piskunov, A. E.; Röser, S.; Schilbach, E.; Scholz, R.-D., 2005, A&A 440, 403)
The Subsystem of Open Clusters in the Post-Hipparcos Era: Cluster Structural Parameters and Proper Motions
(Kharchenko, N. V.; Pakulyak, L. K.; Piskunov, A. E., 2003 ARep 47, 263K)
Proper
Motions of Open Star Clusters and the Rotation Rate of the Galaxy
(Loktin, A. V.; Beshenov, G. V., 2003 ARep 47, 6L)
New
infrared star clusters in the southern Milky Way with 2MASS
(Dutra, C. M., Bica, E., Soares, J.and Barbuy, B. 2003 A&A, 400,
533)
A
Catalogue of infrared star clusters and stellar groups
(E. Bica, C.M. Dutra and B. Barbuy, 2003 A&A, 397, 177)
Embedded
Clusters in Molecular Clouds
(C. J. Lada and E. A. Lada, To appear in Annual Reviews of Astronomy
and Astrophysics v41)
5- Our publications:
Fitting isochrones to open cluster photometric data II.
Nonparametric open cluster membership likelihood estimation and its application in optical and 2MASS Near-IR data
Dias et al. 2012, A&A 539A, 125D
Overlapping abundance gradients and azimuthal gradients related to the spiral structure of the Galaxy
Lépine, J. R. D.; Cruz, P.; Scarano, S., Jr.; Barros, D. A.;, 2011, MNRAS 417, 698
The possibility of determining open-cluster parameters from BVRI photometry
Monteiro, H. & Dias, W. S., 2011, A&A 530, 91
Fitting isochrones to open cluster photometric data. A new global optimization tool
Monteiro, H.; Dias, W. S.; Caetano, T. C., 2010, A&A 516, 2
Measurement of the epicycle frequency in the Galactic disc and initial velocities of open clusters
Lépine J. R. D., Dias W.S.and Mishurov, Yu., 2008, MNRAS 386, 208
Direct determination of the spiral pattern rotation speed of the Galaxy
Dias W.S.and Lépine J. R. D., 2005, ApJ 629, 825
Proper
motion determination of open clusters based on the UCAC2 catalogue
W. S. Dias, M. Assafin, V. Flório, B. S. Alessi, V. Líbero, 2006, A&A 446, 949
Searching
for unknown open clusters in the Tycho-2 catalog (AMD02)
Alessi B. S., Moitinho A. and Dias W. S, 2003, A&A 410, 565
New
Catalogue of Optically Visible Open Clusters and Candidates (DAML02)
Dias W. S., Alessi B. S., Moitinho A. and Lépine J. R. D., 2002,
A&A 389, 871
Proper
Motions of Open Clusters based on the Tycho2 Catalogue II. Clusters farther
than 1 Kpc (DLA02)
Dias W. S., Lépine J. R. D., Alessi B. S., 2002, A&A 388,
168
Proper
Motions of Open Clusters within 1kpc based on the TYCHO2 Catalogue (DLA01)
Dias W. S., Lépine J. R. D., Alessi B. S., 2001, A&A 376,
441
Proper
Motion and Membership Determination in the young Open Cluster NGC 1662
(DBC00)
Dias W.S., Boczko R., Camargo J. B. I., et al., 2000, A&A 357,
149
Mean radial velocities of open clusters (DL03)
Dias W. S. 2004, PhD Thesis, IAG-USP, São Paulo, Brazil
New
Catalogue of Optically Visible Open Clusters and Candidates
Dias W. S., Alessi B. S., Moitinho A. and Lépine J. R. D., 2003,
in "OPEN ISSUES IN LOCAL STAR FORMATION AND EARLY STELLAR EVOLUTION", eds. Lépine J. R. D.
Gregório-Hatten J.,
Star
formation in the local spiral arm
Lépine J. R. D. and Dias W. S., 2003,
in "Magnetic Fields in the Universe: from Laboratory and Stars to Primordial Structures",
Angra dos Reis, RJ, Brazil november 28 - december 03. Abstract Book, p. 26
A
study of 11 newly discovered and 11 poorly know open clusters in the solar
vicinity
Moitinho A, Alessi B. S. and Dias W. S., 2003, to appear in "Galatic
Dynamics", eds. C. Boily, P. Patsis, C. Theis, S. Portegies Zwart, R. Spurzem,
EDP Sciences 2003 (JENAM 2002 Conference in Porto, September 2-7, Workshop
"Galactic Dynamics
New
Catalogue of Optically Visible Open Clusters and Candidates
Dias W. S., Alessi B. S., Moitinho A. and Lépine J. R. D., 2003,
in "Galatic Dynamics", eds. C. Boily, P. Patsis, C. Theis, S.
Portegies Zwart, R. Spurzem, EDP Sciences 2003 (JENAM 2002 Conference in
Porto, September 2-7, Workshop "Galactic Dynamics
PhD
Thesis, IAG-USP
Dias W.S., 2004
Master
Dissertation, IAG-USP
Dias W.S., 2000
6- Interesting Links:
WEBDA
SCYON
Vizier
Simbad
USNO
LNA
ESO
IAG
OAL
DSS
A&A
SkyCharts
LANL
Cartes
du Ciel Sky Charts
Radial
velocity observations of stars in open clusters (J.-C. Mermilliod, Univ.
of Lausanne)
Young
Open Clusters (David Montes)
Moving
Groups
ASTROPHYSICAL RESULTS BASED ON DAML02 CATALOG
7- Acknowledgements:
We use data from Digitized Sky Survey which were produced
at the Space Telescope Science Institute under U.S. Government grant NAG
W-2166.
Extensive use has been made of the SIMBAD, WEBDA databases and Patrick
Chevalley's SkyCharts.
We would like to thank to Ernst Paunzen, Brent A. Archinal, Carlos M. Dutra, Nina
Kharchenko, Alexhander Loktin, Eric Mamajek, Matthias Kronberger
and Edward J. Sabol for collaborations.
This project supported by:
FAPESP (grant number 03/12813-4)
CNPq (grant number 302762/2007-8)
CAPES-GRICES process 040/2008)
FAPEMIG (process number APQ-00090-08)
8- Suggestions, Comments:
Please, send your comments and suggestions to: Wilton
S. Dias
This page is in constant construction (Last updade: jan-10-2013).
