Small Galaxy Groups

IAU Colloquium No. 174

SMALL GALAXY GROUPS

Turku, Finland, 13^th-18^th June 1999

PROGRAMME

Sunday 13^th June.

Registration (5pm to 9pm) and welcoming party (5pm to 7pm) at the Alabama Conference Center, DataCity, Lemminkaisenkatu 14-18 B, Turku.

Monday 14^th June.

Morning session. Chair: M. Valtonen

09:00-09:15 15 min Rector's Address

09:15-10:00 40+5 min I. Karachentsev Observations of triple galaxies

10:00-10:30 Coffee

10:30-11:10 35+5 min C. Mendes de Oliveira Observations of Compact Groups

11:10-10:35 20+5 min D. Makarov A new catalogue of multiple galaxies in the Local Supercluster

11:35-12:00 20+5 min V. Karachentseva Southern triplets of galaxies

12:00-13:00 Lunch

Afternoon session. Chair: W. Huchtmeier

13:00-13:30 25+5 min J. Mulchaey X-ray observations of poor groups of galaxies

13:30-13:45 10+5 min K. Pedersen Detection of hot plasma around M96 in the Leo-I group.

13:45-14:00 10+5 min P. Merluzzi Far Infrared Emission as indicator of interaction in Hickson Compact Groups

14:00-14:15 10+5 min S. Helsdon Effects of galaxy winds on small groups

14:15-14:30 10+5 min S. Temporin At the verge of coalescence: a dusty group of galaxies

14:30-15:00 Coffee

15:00-15:30 25+5 min A. Cavaliere Small groups at z>0 as sites for X-ray emission and AGN rekindling

15:30-16:00 25+5 min T. Ponman Galaxies and the intergalactic medium in groups

16:00-16:30 25+5 min P. Goudfrooij Signs of interactions in NGC 5846 and other ellipticals in poor groups

16:30-17:00 25+5 min G. Mamon The nature of low velocity dispersion compact groups and of HCG 16 in particular

Evening: Reception by the City of Turku, from 7pm at the Old Town Hall, Vanha Suurtori 3 (near Turku Cathederal)

Tuesday 15^th June.

Morning Session. Chair : G. Byrd

08:30-09:00 25+5 min J. Sulentic Stephan's Quintet and the Implications for Compact Groups

09:00-09:30 25+5 min H. Tovmassian The nature of compact groups

09:30-10:00 25+5 min R. de Carvalho On the nature of Compact Groups of Galaxies

10:00-10:30 Coffee

10:30-11:00 25+5 min G. Palumbo Objectively selected samples of galaxy multiplets: an analysis of observed properties

11:00-11:15 10+5 min H. Plana The Nature of the Hickson Compact Group 18

11:15-11:30 10+5 min M. Price Compact Galaxy Groups in the South

11:30-11:45 10+5 min T. Bremnes Photometry of dwarf galaxies within 10Mpc

11:45-12:00 15 min Various Short description of posters by poster authors (2 to 3 minutes each)

12:00-13:00 Lunch

13:00-17:00 Viewing of Posters and/or trip to Naantali and the Concert in Naantali Cathederal
Bus leaves from the city center (outside the Hamburger Börs Hotel) at 2:45 pm.

Wednesday 16^th June.

Morning Session. Chair: M. Roberts

08:30-09:00 25+5 min R. Sancisi H I observations of interacting triplets

09:00-09:20 15+5 min Y. Efremov Young stellar populations in the Local Group

09:20-09:40 15+5 min I. Drozdovsky Stellar content in the nearby groups of galaxies

09:40-10:00 15+5 min D. Forbes Age estimates for galaxies in groups

10:00-10:30 Coffee

10:30-11:00 25+5 min W. Burton Compact HI High-Velocity Clouds in the Local Group

11:00-11:15 10+5 min D. Tucker Loose Groups of Galaxies in the Las Campanas Redshift Survey

11:15-11:30 10+5 min S. Allam Compact Groups of Galaxies in the Las Campanas Redshift Survey

11:30-11:45 10+5 min P. Berczik Evolution of dwarf galaxy in strong tidal field

11:45-12:00 10+5 min A. Zasov Vorontsov-Velyaminov's nests: what are they?

12:00-13:00 Lunch

Afternoon Session. Chair: I. Karachentsev

13:00-13:30 25+5 min F. Combes Influence of extended gas in small groups dynamics

13:30-13:50 15+5 min W. Huchtmeier HI in HCG95 and New Dwarf Galaxies in the IC342/Maffei group

13:50-14:15 20+5 min L. Verdes-Montenegro Tracing the interaction in HCGs through the atomic gas

14:15-14:35 15+5 min S. Hunsberger The Luminosity Function of Galaxies in Compact Groups

14:35-15:00 20+5 min A. Iovino A new sample of compact groups in the southern sky

15:00-15:30 Coffee

15:30-16:00 25+5 min S. Nishiura Deep Optical Imaging of a Compact Group of Galaxies, Seyfert's Sextet

16:00-16:20 15+5 min A. Diaferio Identification of Loose Groups in Redshift Surveys

16:20-16:40 15+5 min J. Iglesias-Paramo Star Formation and Environment in Compact Groups of Galaxies

16:40-17:00 15+5 min R. Schoenmakers Kinematics of Sculptor Group Galaxies

Thursday 17^th June.

Morning Session. Chair : J. Einasto

08:30-09:10 40+5 min L. Athanassoula N-body simulations of interactions and mergings in small galaxy groups

09:10-09:30 15+5 min A. Bosma Simulations of the Cartwheel group

09:30-09:45 10+5 min V. Charmandaris Minor mergers and the formation of Shell Galaxies

09:45-10:00 10+5 min C. Horellou Collisional Ring Galaxies

10:00-10:30 Coffee

10:30-11:00 25+5 min G. Byrd Tidal Perturbation, Dark Matter, and Active Galaxy Nuclei

11:00-11:30 25+5 min J. Muzzio Regular and chaotic motion in a restricted three body problem of astrophysical interest

11:30-11:45 10+5 min N. Chandra Escape with the formation of a binary in two-dimensional three-body problem

11:45-12:00 10+5 min I. Nikiforov Interpretation of rotation curves of giant galaxies in the local group with the truncated exponential disk model

12:00-13:00 Lunch

Afternoon Session. Chair : A. Chernin


12:00-13:00 Lunch

13:00-13:30	25+5 min	J. Anosova	The three body problem and nuclear structures in barred galaxies
13:30-13:45	10+5 min	M. Valtonen	Evolution of multiple black hole nuclei in merged galaxies
13:45-14:05	15+5 min	J. Perea	The distribution of mass in compact groups
14:05-14:25	15+5 min	L. Kiseleva	Computer simulations of triple galaxies versus observations
14:25-14:40	10+5 min	V. Kontorovich	Merging galaxies in compact groups: analytical theory.
14:40-15:00	15+5 min	H. Aceves	Galaxy interactions in triplets

15:00-15:30 Coffee

15:30-16:00	25+5 min	W. Saslaw	Small galaxy groups at large redshift

Evening : Boat trip to the island of Pikkupukki and Conference Dinner. Boat leaves from the "Föri", the small ferry which crosses the Aura river. The boat will leave at 17:30 and return from the island at midnight.

Friday 18^th June.

Morning Session. Chair: W. Saslaw

09:00-09:40 35+5 min J. Einasto Dark matter in groups and clusters of galaxies

09:40-10:00 15+5 min C. Flynn Dark Matter in the Milky Way

10:00-10:30 Coffee

10:30-11:00 25+5 min E. Shaya Least Action Orbit Calculations for Galaxies within 5 Mpc

11:00-11:15 10+5 min A. Chernin Free-fall triplets

11:15-11:35 15+5 min S. Gottloeber The evolution of DM halos in high resolution cosmological N-body simulations

11:35-12:00 25 min W. Saslaw Conference Summary

12:00-13:00 Lunch and close of conference

09:00-09:15	15 min	Rector's Address
09:15-10:00	40+5 min	I. Karachentsev	Observations of triple galaxies

10:00-10:30 Coffee

10:30-11:10	35+5 min	C. Mendes de Oliveira	Observations of Compact Groups
11:10-10:35	20+5 min	D. Makarov	A new catalogue of multiple galaxies in the Local Supercluster
11:35-12:00	20+5 min	V. Karachentseva	Southern triplets of galaxies

12:00-13:00 Lunch

13:00-13:30	25+5 min	J. Mulchaey	X-ray observations of poor groups of galaxies
13:30-13:45	10+5 min	K. Pedersen	Detection of hot plasma around M96 in the Leo-I group.
13:45-14:00	10+5 min	P. Merluzzi	Far Infrared Emission as indicator of interaction in Hickson Compact Groups
14:00-14:15	10+5 min	S. Helsdon	Effects of galaxy winds on small groups
14:15-14:30	10+5 min	S. Temporin	At the verge of coalescence: a dusty group of galaxies

14:30-15:00 Coffee

15:00-15:30	25+5 min	A. Cavaliere	Small groups at z>0 as sites for X-ray emission and AGN rekindling
15:30-16:00	25+5 min	T. Ponman	Galaxies and the intergalactic medium in groups
16:00-16:30	25+5 min	P. Goudfrooij	Signs of interactions in NGC 5846 and other ellipticals in poor groups
16:30-17:00	25+5 min	G. Mamon	The nature of low velocity dispersion compact groups and of HCG 16 in particular

08:30-09:00	25+5 min	J. Sulentic	Stephan's Quintet and the Implications for Compact Groups
09:00-09:30	25+5 min	H. Tovmassian	The nature of compact groups
09:30-10:00	25+5 min	R. de Carvalho	On the nature of Compact Groups of Galaxies

10:00-10:30 Coffee

10:30-11:00	25+5 min	G. Palumbo	Objectively selected samples of galaxy multiplets: an analysis of observed properties
11:00-11:15	10+5 min	H. Plana	The Nature of the Hickson Compact Group 18
11:15-11:30	10+5 min	M. Price	Compact Galaxy Groups in the South
11:30-11:45	10+5 min	T. Bremnes	Photometry of dwarf galaxies within 10Mpc
11:45-12:00	15 min	Various	Short description of posters by poster authors (2 to 3 minutes each)

12:00-13:00 Lunch

08:30-09:00	25+5 min	R. Sancisi	H I observations of interacting triplets
09:00-09:20	15+5 min	Y. Efremov	Young stellar populations in the Local Group
09:20-09:40	15+5 min	I. Drozdovsky	Stellar content in the nearby groups of galaxies
09:40-10:00	15+5 min	D. Forbes	Age estimates for galaxies in groups

10:00-10:30 Coffee

10:30-11:00	25+5 min	W. Burton	Compact HI High-Velocity Clouds in the Local Group
11:00-11:15	10+5 min	D. Tucker	Loose Groups of Galaxies in the Las Campanas Redshift Survey
11:15-11:30	10+5 min	S. Allam	Compact Groups of Galaxies in the Las Campanas Redshift Survey
11:30-11:45	10+5 min	P. Berczik	Evolution of dwarf galaxy in strong tidal field
11:45-12:00	10+5 min	A. Zasov	Vorontsov-Velyaminov's nests: what are they?

12:00-13:00 Lunch


13:00-13:30	25+5 min	F. Combes	Influence of extended gas in small groups dynamics
13:30-13:50	15+5 min	W. Huchtmeier	HI in HCG95 and New Dwarf Galaxies in the IC342/Maffei group
13:50-14:15	20+5 min	L. Verdes-Montenegro	Tracing the interaction in HCGs through the atomic gas
14:15-14:35	15+5 min	S. Hunsberger	The Luminosity Function of Galaxies in Compact Groups
14:35-15:00	20+5 min	A. Iovino	A new sample of compact groups in the southern sky

15:00-15:30 Coffee

15:30-16:00	25+5 min	S. Nishiura	Deep Optical Imaging of a Compact Group of Galaxies, Seyfert's Sextet
16:00-16:20	15+5 min	A. Diaferio	Identification of Loose Groups in Redshift Surveys
16:20-16:40	15+5 min	J. Iglesias-Paramo	Star Formation and Environment in Compact Groups of Galaxies
16:40-17:00	15+5 min	R. Schoenmakers	Kinematics of Sculptor Group Galaxies

08:30-09:10	40+5 min	L. Athanassoula	N-body simulations of interactions and mergings in small galaxy groups
09:10-09:30	15+5 min	A. Bosma	Simulations of the Cartwheel group
09:30-09:45	10+5 min	V. Charmandaris	Minor mergers and the formation of Shell Galaxies
09:45-10:00	10+5 min	C. Horellou	Collisional Ring Galaxies

10:00-10:30 Coffee

10:30-11:00	25+5 min	G. Byrd	Tidal Perturbation, Dark Matter, and Active Galaxy Nuclei
11:00-11:30	25+5 min	J. Muzzio	Regular and chaotic motion in a restricted three body problem of astrophysical interest
11:30-11:45	10+5 min	N. Chandra	Escape with the formation of a binary in two-dimensional three-body problem
11:45-12:00	10+5 min	I. Nikiforov	Interpretation of rotation curves of giant galaxies in the local group with the truncated exponential disk model

12:00-13:00 Lunch

09:00-09:40	35+5 min	J. Einasto	Dark matter in groups and clusters of galaxies
09:40-10:00	15+5 min	C. Flynn	Dark Matter in the Milky Way

10:00-10:30 Coffee

10:30-11:00	25+5 min	E. Shaya	Least Action Orbit Calculations for Galaxies within 5 Mpc
11:00-11:15	10+5 min	A. Chernin	Free-fall triplets
11:15-11:35	15+5 min	S. Gottloeber	The evolution of DM halos in high resolution cosmological N-body simulations
11:35-12:00	25 min	W. Saslaw	Conference Summary

12:00-13:00 Lunch and close of conference