Information Circular – Workshop of the International Space Science Institute (ISSI)

From the Outer Heliosphere to the Local Bubble:

Comparison of New Observations with Theory

Convenors: Jeffrey Linsky (Chair), Univ. of Colorado, Boulder, CO, USA

Dieter Breitschwerdt, Univ. of Vienna, Austria

Priscilla Frisch, Univ. of Chicago, IL, USA

Carl Heiles, Univ. of California, Berkeley, CA, USA

Vlad Izmodenov, Moscow State Univ., Russia

Eberhard Möbius, Univ of New Hampshir e, Durham, NH, USA

Francesco Palla, Osservatorio di Arcetri, Florence, Italy

Rudolf von Steiger, ISSI, Bern, Switzerland

Local organisation: Brigitte Fasler, ISSI, brigitte.fasler@issibern.ch,

ph. +41 31 631 48 96, fax +41 31 631 48 97

Date: 15-19 October 2007

1. General Information

The International Space Science Institute (ISSI) is hosting a workshop on the subject of From the Outer Heliosphere to the Local Bubble: Comparison of New Observations with Theory. The attendance at this workshop is by invitation only. All participants listed below have been contacted earlier and have given a positive reply.

The aim of this information circular is to provide the participants with some more detailed information on the workshop program, organization and logistics, and to enquire about hotel reservation information. Another circular will be distributed a few weeks before the workshop as a reminder and to give some last minute information. Please consult the letter of invitation and our WWW homepage at www.issibern.ch for general information about ISSI.

2. Workshop Topic

Recent satellite observations and theoretical developments have led to rapid progress in our understanding of the physical processes and phenomena that occur in the outer heliosphere and in the nearby interstellar medium located inside the Local Bubble. Until recently the heliosphere and the local interstellar medium were mostly studied as separate noninteracting systems. Now the complex interactions between the solar wind and the surrounding plasma as well as the influence of the Local Bubble and the Local Cloud on the heliosphere are beginning to be appreciated. This ISSI workshop will summarize the rapid progress being made in these areas and emphasize the interactions between the heliosphere and its near and distant surroundings. Detailed studies of the local interstellar medium in which the Sun is embedded provide a unique opportunity to understand physical processes occurring in the interstellar media of our galaxy and external galaxies.

3. Workshop Structure and Program

The Workshop will be structured into seven sessions, each of which will be addressing a specific question with an invited introductory talk (45 min) followed by a number of invited talks (30 min):

Q#1: What physical processes drive the multiphase interstellar medium in the Local Bubble?

Q#2: How is the ISM inside the heliosphere related to the ISM outside the heliosphere?

Q#3: What are the energy and pressure balances in the Local Bubble?

Q#4: What are the three dimensional shape and structure of the dynamic heliosphere?

Q#5: What are the origin and physical properties of the clump of very local ISM?

Q#6: What are the dominant physical processes in the termination shock and the inner heliosheath?

Q#7: What are the roles that magnetic fields play in the Local Bubble and its constituents?

There will be splinter sessions at the end of each day to discuss these questions further in an informal setting. The last day of the workshop shall be devoted to the seven splinter group reports (25 min) followed by four “big picture” talks (45 min)

A draft program is attached to this circular based on the following general structure:

Day and date	Time	Programme
Monday 15 October	0900-1245	Introduction, Q#6
	1415-1630	Q#4
	1700-1830	Splinters
	1830-	Ice breaker
Tuesday 16 October	0900-1245	Q#2
	1415-1630	Q#3
	1700-1830	Splinters
Wednesday 17 October	0900-1245	Q#1
Wednesday 17 October	Afternoon	Excursion
Thursday 18 October	0900-1245	Q#5
	1415-1630	Q#7
	1700-1830	Splinters
	Evening	Dinner
Friday 19 October	0900-1245	Splinter summaries
Friday 19 October	1415-1630	Big picture talks

4. Publication

A workshop volume is planned to be published by Springer both as a hardcover book in the Space Sciences Series of ISSI (SSSI) and as an issue of the journal Space Science Reviews (SSRv). Papers may be prepared in LaTeX or Word using the style of Space Science Reviews, and must be submitted using the Editorial Manager system. The volume will be edited by Jeffrey Linsky, Eberhard Möbius, and Vladislav Izmodenov. Further details about the publication (including LaTeX style files) will be given at the workshop.

5. Funding of the workshop

ISSI will fund the participants by providing the daily subsistence cost during the time of the meeting up to a maximum of 7 days (time of arrival in Bern through departure from Bern). This includes the cost for the hotel and for meals. However, ISSI is not in a position to cover travel costs, taxis, phone calls etc.

There will be no registration fee for this workshop.

ISSI will also cover the publication costs of the printed volume, of which each participant will receive a free copy.

6. Equipment available at ISSI

ISSI is equipped with a pool of different kinds of workstations such as PCs, Macs, and Sun Stations, as well as with Postscript printers for both b/w and colour. All machines have Ethernet connections and run web browsers, ssh, telnet, ftp, etc., so connecting home, accessing email, printing, etc. while at ISSI will be no problem.

Participants who bring their own notebook computers will be able to connect to the Ethernet through the standard RJ45 plug. Cables are available at ISSI and addresses will be dealt out by our DHCP server. We also provide wireless access; participants wishing to use that will receive a username/password combination from our computer engineer and system administrator, Saliba F. Saliba (saliba@issi.unibe.ch), who will also help with any computer-related questions.

The meeting room is equipped with a computer and beamer for electronic presentations, a video player, two overhead projectors, a slide projector, and a whiteboard.

7. Social Program

An informal welcome drink will be offered at the end of the first day at ISSI, on Monday, 17 October 2007 at 6:30 p.m.

A free afternoon is foreseen on Wednesday, 19 October 2007, for an excursion to some nice place in the vicinity of Bern.

A workshop dinner will be offered to all participants in the evening of Thursday, 20 October 2007, at 7:00 p.m., in a restaurant located in the old part of the city.

8. Travelling to Bern

Bern can be reached easily from two international airports: Zurich (ZRH) and Geneva (GVA). Direct intercity trains to Bern depart every half hour from inside the airport buildings; see www.rail.ch for detailed departure times. The travel time is ~1.5 hours from Zurich airport and ~2 hours from Geneva airport.

There is also a local airport (Bern, BRN), located a 20 minute shuttle ride from the city centre, with connections to several European cities (London, Munich, etc.). Bern is connected to many European cities by fast intercity trains (e.g. TGV Paris-Bern in 4.5 hours, or Frankfurt-Bern 5 hours). Timetable information of trains within and around Switzerland can be found at www.rail.ch. Also check out www.issibern.ch/guide.html for a few more travel tips such as links to city maps of Bern, weather forecasts, currency calculators, etc...

9. Hotel Reservations

All participants of the workshop are requested to contact the workshop secretary, Brigitte Fasler (Tel. +41-31-631-4896, Fax: +41-31-631-4897, email: fasler(at)issibern.ch), to indicate their arrival and departure dates and times, as well as any special requests they may have (e.g. double room). A confirmation will be returned within a few days. Block bookings have been made in nearby hotels; please see www.issibern.ch/hotel_info.html for a map indicating the location of the hotels and of ISSI. Deadline for sending the hotel reservation information, which should include your complete contact information, is
17 September 2007.

List of Participants

Dr.	Dimitri	Alexashov	alexash@ipmnet.ru	Institute for Problems in Mechanics RAS, Moscow, Russia
Dr.	Andre	Balogh	balogh@issibern.ch	ISSI, Bern, Switzerland
Prof.	V.B.	Baranov	baranov@ipmnet.ru	Institute for Problems in Mechanics, Moscow, Russia
Prof.	Roger M.	Bonnet	rmbonnet@issibern.ch	ISSI, Bern, Switzerland
Dr.	Dieter	Breitschwerdt	breitschwerdt@astro.univie.ac.at	University of Vienna, Vienna, Austria
Dr.	Maciej	Bzowski	bzowski@cbk.waw.pl	Space Research Center PAS, Warsaw, Poland
Dr.	Miguel	de Avillez	mavillez@astro.univie.ac.at	Institute for Astronomy, University of Vienna, Vienna, Austria
Prof.	Bruce	Draine	draine@astro.princeton.edu	Princeton University Observatory, Princeton NJ
Dr.	Len	Fisk	lafisk@umich.edu	University of Michigan, Ann Arbor MI
Dr.	Vladimir	Florinski	vflorins@ucr.edu	IGPP, University of California at Riverside, Riverside CA
Dr.	Priscila	Frisch	frisch@oddjob.uchicago.edu	University of Chicago, Chicago IL
Dr.	Burkhard	Fuchs	fuchs@ari.uni-heidelberg.de	Astronmisches Rechen-Institut, Heidelberg, Germany
Prof.	Johannes	Geiss	geiss@issibern.ch	ISSI, Bern, Switzerland
Dr.	George	Gloeckler	gglo@umich.edu	Department of AOSS, University of Michigan, Ann Arbor MI
Prof.	Carl	Heiles	heiles@astro.berkeley.edu	University of California, Berkeley CA
Dr.	Vlad	Izmodenov	izmod@ipmnet.ru	Moscow State University, Moscow Russia
Dr.	Ed	Jenkins	ebj@astro.princeton.edu	Princeton University, Princeton NJ
Prof.	Randy	Jokipii	jokipii@lpl.arizona.edu	Department of Planetary Sciences, University of Arizona, Tucson AZ
Dr.	Dimitra	Koutroumpa	dimitra.koutroumpa@aerov.jussieu.fr	Service d'Aeronomie du CNRS, Verrières-le-Buisson, France
Dr.	Harald	Krueger	krueger@mps.mpg.de	Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, Germany
Dr.	Rosine	Lallement	Rosine.Lallement@aerov.jussieu.fr	Service d'Aeronomie du CNRS, Verrières-le-Buisson, France
Prof.	Alex	Lazarian	lazarian@astro.wisc.edu	Department of Astronomy, University of Wisconsin, Madison WI
Dr.	Jeffrey	Linsky	jlinsky@jila.colorado.edu	JILA/University of Colorado, Boulder CO
Dr.	Dave	McComas	dmccomas@swri.edu	Southwest Research Institute, San Antonio TX
Dr.	Eberhard	Möbius	Eberhard.Moebius@unh.edu	University of New Hampshire, Durham NH
Dr.	Hans-Reinhard	Mueller	hans.mueller@dartmouth.edu	Dartmouth College, Hanover NH
Dr.	Merav	Opher	mopher@physics.gmu.edu	Department of Physics and Astronomy, George Mason University, Fairfax VA
Dr.	Francesco	Palla	palla@arcetri.astro.it	Osservatorio di Arcetri, Firenze, Italy
Dr.	Nikolai	Pogorelov	nikolaip@ucr.edu	IGPP, University of California at Riverside, Riverside CA
Dr.	Eric	Quemerais	eric.quemerais@aerov.jussieu.fr	Service d'Aeronomie du CNRS, Verrières-le-Buisson, France
Dr.	Seth	Redfield	sredfield@astro.as.utexas.edu	University of Texas, Austin TX
Dr.	John	Richardson	jdr@space.mit.edu	MIT, Cambridge MA
Dr.	Robin	Shelton	rls@hal.physast.uga.edu	Department of Physics and Astronomy, University of Georgia, Athens GA
Dr.	Jonathan	Slavin	jslavin@cfa.harvard.edu	Center for Astrophysics, Cambridge MA
Dr.	Steven	Snowden	snowden@milkyway.gsfc.nasa.gov	NASA Goddard Space Flight Center, Greenbelt MD
Prof.	Steven	Spangler	steven-spangler@uiowa.edu	Department of Physics and Astronomy, University of Iowa, Iowa City IA
Dr.	Snezana	Stanimirovic	sstanimi@astro.wisc.edu	Astronomy Department, University of Wisconsin, Madison WI
Dr.	Ed	Stone	ecs@srl.caltech.edu	Caltech, Pasadena CA
Prof.	Rudolf	von Steiger	vsteiger@issibern.ch	ISSI, Bern, Switzerland
Dr.	Barry	Welsh	bwelsh@ssl.berkeley.edu	Space Sciences Laboratory, University of California at Berkeley, Berkeley CA
Dr.	Brian	Wood	woodb@origins.colorado.edu	JILA/University of Colorado, Boulder CO
Prof.	Ellen	Zweibel	zweibel@astro.wisc.edu	University of Wisconsin, Madison WI

Draft Program

The workshop program will follow the structure given under point 3 above.

A detailed program giving the exact times will be distributed in due time.

Jeffrey Linsky – Opening talk

QUESTION #6 - What are the dominant physical processes in the termination shock and the inner heliosheath?

Len Fisk – Introductory talk (45’)

Randy Jokipii - Magnetic field structure in the heliosheath: theory (30’)

André Balogh - Magnetic field structure in the heliosphere: observations (30’)

Vladimir Florinski - Pickup ion acceleration and evolution in the heliosheath and termination shock (30’)

Dave McComas - ENA imaging of the inner heliosheath (30’)

QUESTION #4 - What are the three-dimensional shape and structure of the dynamic heliosphere?

Ed Stone – Introductory talk (45’)

Brian Wood - Constraints on the structure of the heliosphere interface based on Lyman-alpha absorption spectra (30’)

Dimitri Alexashov - Modelling the shape of the heliosphere (30’)

Nikolai Pogorelov - Influence of the interstellar magnetic field and neutrals on the shape of the outer heliosphere (30’)

QUESTION #2 - How is the ISM inside the heliosphere related to the ISM outside the heliosphere?

Priscilla Frisch – Introductory talk (45’)

Vlad Izmodenov - Inferences on the local interstellar parameters from observations inside the heliosphere (30’)

Eric Quemerais - Backscattered Lyman-alpha observations from SOHO/SWAN and Voyagers (30’)

George Gloeckler and Maciej Bzowski - Ulysses and ACE observations of pickup ions and their interpretation (2x20’)

John Richardson - The distant solar wind (30’)

QUESTION #3 - What are the energy and pressure balances in the Local Bubble?

Ed Jenkins – Introductory talk (45’)

Dimitra Koutroumpa - Charge transfer induced soft X-ray emission from the heliosheath (30’)

Robin Shelton - Is there hot gas in the Local Bubble and what are its properties? (30’)

Question #1 - What physical processes drive the multiphase interstellar medium in the Local Bubble?

Dieter Breitschwerdt – Introductory talk (45’)

Miguel de Avillez - Stability of interstellar clouds in the Local Bubble (30’)

Steve Snowden - What can be learned from X-ray spectroscopy concerning hot gas in the Local Bubble and
charge exchange processes? (30’)

Snezana Stanimirovic - Ultrasmall scale structure in the Local Bubble (30’)

Steve Spangler - Turbulence in the local ISM and Local Bubble (30’)

QUESTION #5 - What are the origin and physical properties of the clump of very local ISM?

Jon Slavin and Seth Redfield – Introductory talk (theory / observations) (2x30’)

Barry Welsh - Interrelationships of hot and warm gas in the very local ISM (30’)

Harald Krüger - Dust inside and outside the heliosphere (30’)

Bruce Draine - Theoretical perspectives on dust inside and outside of the heliosphere (30’)

QUESTION #7 - What are the roles that magnetic fields play in the Local Bubble and its constituents?

Ellen Zweibel - Introduction (45’)

Merav Opher - Role of magnetic fields in shaping the three dimensional models of the heliosphere (30’)

Alex Lazarian - Magnetohydrodynamic turbulence and its effects on the interstellar medium (30’)

SPLINTER SUMMARIES

7 brief presentation of each of the splinter groups (7x20’)

BIG PICTURE TALKS

Hans-Reinhard Mueller - Heliosphere in time (45’)

Rosine Lallement - Origin and Evolution of the Local Bubble (45’)

Burkhard Fuchs - Beyond the Local Bubble (45’)

V. Baranov - Challenges in modelling the heliospheric/ISM interface (45’)

Eberhard Möbius - Summary talk: What have we learned?