Date: Tue, 22 Apr 2003 11:36:25 +0100 (BST)
From: "Roberto J. Terlevich" <rjt@ast.cam.ac.uk>
X-X-Sender: rjt@cass108
To: Enrique Perez <eperez@iaa.es>
Subject: from Uta

(Contacted but no detailed answer MPE, Bochun, Pauldrach, Hensler, Zinnecker?)


Node Goettingen
===============

P. Papaderos
U. FvA
K.J. Fricke
L.M. Cairos
I. Berentzen
-----------------
K. G. Noeske (Goettingen Observatory and University of California/Lick Observatory)
P. Weilbacher (Goettingen Observatory and University of Durham)

and PhD students

possible subnodes/national collaborations:

	G.  Hensler (Kiel)
     ---------------------------------------------
ev.?	L. Tacconi, U. Hopp (Muenchen)
	U. Klein (Bonn), J. Ott (Bonn and ATCA, Australia)


Domains of expertise
---------------------

-- Evolutionary synthesis of   - normal
			       - interacting
			       - dwarf galaxies
			       - star clusters of var. metallicities

   self-consistent chemical and spectrophotometric evolution, stars, gas,
   emission lines


-- Optical and NIR photometry of SFing galaxies
			- BCDs
			- interacting and merging galaxies
			- Tidal Dwarf Galaxies (=TDGs)
			- isolated vs. environm. -> starbursts


-- Spectroscopy (UV - opt. - NIR) of  - BCDs
				      - WR galaxies
				      - TDGs

		kinematic and thermodynam. properties of the ISM
		abundances & abundance ratios
		spectral synthesis
		chemical analysis
		Star Formation Histories (=SFHs)

-- Surface photometry

	- surface brightness profile derivation
	-       -- " --              decomposition
	- nature and evolutionary status of the stellar LSB component
	  of BCDs and TDGs
	- deriv. of structural properties
	- comparison of struct. props among various types of dwarf galaxies
		+ local Universe
		+ intermed. redshift (e.g., NELGs)

-- X-ray Properties of isolated vs. interacting SFing galaxies

	- ROSAT, XMM, Chandra
	- morphology, extent, chemical & thermodynam. props of hot plasma
	- X -- FIR & X -- radio correlations & evolution along Toomre sequence
	- thermal & non-thermal nuclear activity


-- N-body & SPH modelling of galaxies:
	internal vs. environm. instabilities/bars

		- including SF criterion




Involvement in observational/instrumental projects
----------------------------------------------------

-- VLT : instrumentation (FORS1+2) and garanteed time

-- VST : OmegaCam

-- HET & SALT : building & instrument. and garanteed time;
		(K.J. Fricke in Board of Directors)

	+ SALTICAM
	+ PFIS   (--> collab. w. J. Gallagher, U. Wisc.)




Proposed Topics
================

-- Starbursts and SFHs in dwarf galaxies

		- Surf. brightness analys.: burst -- LSB components
		- CMDs
		- spectrosc.

Notes:  Star-forming activity in BCDs does not take place out to a fortuituous
	galactocentric distance but is typically confined to the 24-2.45 B
	mag/arcsec**2 isophotal radius of their underlying LSB host galaxies.
	In the most common type of iE BCDs (classification scheme by
	Loose & Thuan 1986) the cumulative luminosity
        output of discrete and more diffuse star-forming sources (e.g., SSCs,
        compact star clusters / an evenly distributed young stellar population, 	        	made out of dissolved star clusters?) produces a "plateau" feature in SBPs.
        The SFH within the plateau (flux contribution of compact and extended
        young stellar sources, duration of and stellar mass produced in
        ``bursts'') has never been
        studied in sufficient detail so far. The Goettingen group is going
        to combine different tools to search for a self-consistent
        constraints to the SFH of selected BCDs (CMDs,
        color gradients, spectral population synthesis)

	        - evolutionary links among diff. types of dwarf galaxies

Notes: Long-standing question. Comparison of the structural properties
       of the LSB host galaxies in BCDs and dIs. Is there a sharp
       structural dichotomy between either dwarf galaxy type
       or is there a significant fraction of gas-rich star-forming
       dwarf galaxies with interemediate properties?


-- Starbursts and SFH in massive gas-rich interacting galaxies/mergers

		- SF efficiencies
		- SF vs Star Cluster Formation
		- lifetime, evolution of Star clusters
		- star clusters vs. surface photometry
		- TDGs



-- Starburst props & SF processes/efficiences in - dwarf vs massive
galaxies
						 - isolated vs interacting




Ongoing collaborations with other nodes
=========================================

J.M. Vilchez (IAA):  Spectrophotometric investigates of star-forming dwarf
		      galaxies in clusters
J.M. Vilchez (IAA)+C. Munoz-Tunon+N. Caon (IAC): Multiwavelength studies
                      of BCDs

R. de Grijs (IoA Cambridge) Star Cluster Formation & Evolution in interacting
  (ESO ASTROVIRTEL Project		    galaxies .... merger remnants
	& data base)
			    Globular Cluster Systems of E/S0s --> violent SF
			    phases --> origin/formation scenarios for these
			    galaxies

P.-A. Duc (Saclay) : TDGs: SF props far out in tidal structures
			   old (=inherited) vs. young (=formed in situ)
			        stellar pops
			   chem. abundances of TDGs vs genuine dwarf galaxies
			   future spectral and dynam. evolution of TDGs
			   cosmological implications (e.g. faint blue
			   	galaxies/faint counts)

Ongoing collaborations with external partners to be involved into the network
=============================================================================

N.G. Guseva, Y.I. Izotov, Main Astronomical Observatory (Kiev), Ukraine
P.-A. Duc (Saclay)

M Steinmetz (AIP): SF, Galaxy Formation & Evolution in cosmological scenarios

K. Borne (NASA project): high resolution dynamical and spectral modelling
			of interacting galaxies/mergers : gas, stars & SF & feedback