Title: EXTRAGALACTIC STAR CLUSTERS:
FROM ANCIENT GLOBULARS
TO YOUNG SUPER STAR CLUSTERS
Organizers: Eva K. Grebel, U Washington grebel@astro.washington.edu
Doug Geisler, U Concepción doug@stars.cfm.udec.cl
Ata Sarajedini, Wesleyan U ata@astro.wesleyan.edu
Markus Kissler-Patig, ESO mkissler@eso.org
Format: One-day topical session with invited review and highlight
talks, short poster summaries, and a panel discussion.
Poster session (Session 12) on Monday, May 31, 1999.
Abstract: http://www.aas.org/meetings/aas194/prelim/clusters.html
I. Resolved Star Clusters and the
Evolutionary History of the Local Group
Chair: Geisler
1. Sarajedini (Wesleyan): Comparative Properties of the Globular Cluster
8:35 a.m., 22 min Systems in the Milky Way, M31 and M33.
Implications for the Relative Formation Timescales
of These Galaxies
Barmby (CfA): Colors and Metallicities of M31 Globular Clusters
8:57 a.m., 3 min (Poster summary)
2. Zinn (Yale): The Globular Cluster Systems of the Fornax and
9:00 a.m., 20 min and Sagittarius dSph Galaxies
3. Johnson (UCSC) The Oldest Star Clusters in the Magellanic Clouds -
9:20 a.m., 20 min A Common Epoch of Globular Cluster Formation
4. Grebel (U Wash) Young Star Clusters in the Magellanic Clouds:
9:40 a.m., 17 min Tracers of the Last Close Encounter
Piatti (U Concepción): A New Giant Branch Clump Structure Towards the
9:57 a.m., 3 min Large Magellanic Cloud (Poster summary)
10:00 - 10:45: Poster viewing / coffee break
II. Starburst Clusters
and Formation of Globular Clusters
Chair: Grebel
5. Elmegreen (IBM): A Universal Formation Mechanism for Star Clusters:
10:45 a.m. (25 min) Impact of Turbulence, Pressure, and Shocks
6. Hodge (U Wash): Star Clusters in Irregular Galaxies
11:10 a.m. (20 min)
7. Kennicutt (Steward): Systematics of Young Clusters and Associations in
11:30 p.m. (20 min) Spiral Galaxies
8. Drissen (Laval): The Stellar Content of Young Starburst Clusters
11.50 a.m. (20 min)
9. Ho (OCIW): Observational Evidence for Super Star Clusters
12:10 p.m. (20 min) as Progenitors of Globular Clusters
12:30 p.m. - 02:30 p.m.: Lunch break / poster viewing
III. Globular Cluster Systems:
Observational Properties
Chair: Sarajedini
10. Schweizer (DTM): Young Globular Clusters in Merger Galaxies
02:30 a.m. (25 min)
11. Geisler (Concepción): Multiple Globular Cluster Populations in
02:55 p.m. (25 min) Ellipticals
12. Miller (Leiden): Globular Cluster Systems of Dwarf Ellipticals
03:20 p.m. (20 min)
13. Kissler-Patig (ESO): Globular Cluster Populations in Spirals
03:40 p.m. (17 min)
Rhode (Yale): Globular Cluster Systems of Spiral Galaxies:
03:57 p.m. (3 min) First Results for NGC 1055 (Poster summary)
4.00 p.m. - 4:15 p.m. Poster viewing / break
IV. Globular Cluster Systems:
Formation Scenarios
Chair: Kissler-Patig
14. McLaughlin (Berkeley):Theory of Globular Cluster Formation
04:15 p.m. (20 min)
15. Zepf (Yale): Globular Cluster Systems and Galaxy Formation
04:35 p.m. (20 min)
16. Côté (CalTech): Globular Cluster Metallicity Distribution
04:55 p.m. (20 min) Functions: Multimodality as a Consequence of
Intrinsic Processes and Capture
17. Poster presenters: 3-min presentations of 5 selected posters
05:15 p.m. (15 min)
Vesperini (U Mass): Evolution of the mass function of the Galactic
05:15 p.m. (3 min) globular cluster system (Poster summary)
Zhang (Yale): Measuring Tidal Radii and Concentrations of
05:18 p.m. (3 min) Globular Clusters in M87 (Poster summary)
Larsen (U Copenhagen): Young Massive Star Clusters - ubiquitous or
05:21 p.m. (3 min) exotic? (Poster summary)
Smith (U Coll. London): The Age and Mass of Super Star Cluster F in
05:24 p.m. (3 min) in M82 (Poster summary)
Whitmore (STScI): The Luminosity Function of Young Star Clusters
05:27 p.m. (3 min) in "The Antennae" Galaxies (NGC 4038/4039)
(Poster summary)
5:30 p.m. (30 min) Panel discussion
Panelists: Ashman, Baum, Elmegreen, Gallagher, Harris, Zinn
Possible discussion questions:
- Why do the Milky Way, M31, Sagittarius, and Fornax apparently
not have any `young' (populous) globular clusters, whereas M33,
the LMC, and SMC seem to have a lot of them?
- Where do the `young' globular clusters observed in galaxy
mergers fit into the grand scheme of globular clusters?
- What can account for the two epochs or globular cluster and
therefore galaxy formation in ellipticals (and spirals) that
is required by the bimodal populations we are now seeing?
- Just how good are globular clusters as distance indicators?
6.00 p.m. End
Dear Poster Presenters:
Rather than to select five posters for the short oral poster summaries we would like to try to accommodate all of the eight posters of Session 12. Three of the organizers have therefore shortened their talks to make room for a 3-min presentation of a related poster after our talks, while the remaining five posters will be presented in the 5:15 - 5:30 time slot. Please review the above program for details. We look forward to your contribution.
Dear Speakers:
Please remember that all talk times include time for discussions. We ask all invited speakers to leave 5 min for questions and discussion after their talk. We suggest that poster presenters try to leave time for one question (1 min) after their talk. Our program is very full. Please try to keep your talks within the alloted times.
If you need any equipment other than overhead projectors please contact diana@aas.org ASAP. 35-mm projectors can be requested free of charge. You may get charged for other types of equipment such as PC projectors.
Thank you. We look forward to meeting all of you in Chicago!
Please note the thesis talk by Arunav Kundu (STScI) on Monday, May 31, on WFPC2 Studies of the Globular Cluster Systems of over 50 Galaxies.