Gamma-Ray Astrophysics 2001

April 4-6, 2001
Baltimore, Maryland, USA

The GAMMA 2001 symposium was successfully held in Baltimore, Maryland from April 4-6, 2001 and included a Teacher's Workshop and an Advanced Compton Telescope Workshop on April 3, 2001. Presentations and Posters from the symposium can be submitted and viewed here.


Conference proceedings will be published by the American Institute of Physics (AIP). All contributors will be invited to submit a manuscript for the proceedings. We have decided to delay the submission deadline to June 1, 2001, but this is a hard limit. Publication date will be approximately October 15 2001. The page limits are 10 for invited talks and 5 for contributed talks or posters. The manuscript format must conform to the guidelines provided by the AIP. The AIP guidelines are available as a pdf document. Templates for LaTeX and MSWord are available from the AIP WWW site. The use of LaTeX or MSWord is not required , as long as AIP guidelines are adhered to. Manuscripts can be submitted as photo-ready hard copy, or in a printable electronic format (do not send us LaTeX source files). Hard copy should be mailed to: Sandy Barnes, Code 661, NASA Goddard Space Flight Center, Greenbelt Maryland, 20771. Electronic copy should be e-mailed to: (include 1st author last name and paper number in the subject heading). If we are unable to print any electronically submitted manuscript, we will notify the author, and require that it be corrected and resubmitted.

Note that the AIP LaTeX package requires that an installation procedure be run. This is done by running LaTeX on the file "aipproc.ins".

References such as "Doe et al., these proceedings" can sometimes be problematic, since some authors choose not to submit proceedings manuscripts. If you wish to reference work presented at the Gamma 2001 symposium, we would appreciate that you notify us in a separate e-mail at the time of submission. If the paper you reference does not materialize, we will ask you to make appropriate changes.

View the Gamma2001 poster.
Download a higher resolution printable version of the poster.

Meeting Location: Hilton Baltimore & Towers
20 West Baltimore Street
Baltimore, Maryland, USA
Phone: +1 410-539-8400
Fax: +1 888-466-4644
Hosted by: NASA/Goddard Space Flight Center

Important Dates

Spring, 2000 First Announcement
August, 2000 Second Announcement
December, 2000 Call for Papers
February 2, 2001 Abstract Deadline
March 3, 2001 Hotel Registration Deadline
March 3, 2001 Early Conference Registration Deadline
April 3, 2001 Teacher's Workshop
April 3, 2001 Advanced Compton Telescope (ACT) Workshop
April 4 - 6, 2001 Technical Sessions
April 5, 2001 Banquet at the Baltimore Aquarium
May 15, 2001 Manuscript Deadline
October 2001 Proceedings Publication by AIP

Scientific Organizing Committee:

N. Gehrels, NASA/GSFC, Co-Chair
S. Ritz, NASA/GSFC, Co-Chair
D. Bertsch, NASA/GSFC
R. Blandford, Caltech
E. Bloom, SLAC
P. Caraveo, IFC/CNR
G. Fishman, NASA/MSFC
P. Fleury, Ecole Polytechnique
I. Grenier, Universite Paris VII
K. Hurley, UCB
R. Johnson, UCSC
T. Kamae, SLAC/Hiroshima University
D. Kniffen, Hampden-Sydney College
J. Kurfess, NRL
R. Lin, UCB
C. Meegan, NASA/MSFC
P. Michelson, Stanford
L. Piro, Inst. D'Astrophysique Spatiale
G. Ricker, MIT
J. Ryan, UNH
V. Schönfelder, MPE, Garching
P. Ubertini, Inst. D'Astrophysique Spatiale
G. Vedrenne, C.E.S.R.
T. Weekes, Harvard-Smithsonian, CfA
C. Winkler, ESA/ESTEC
S. Woosley, UCSC

Local Organizing Committee (LOC)

C. Shrader, Chair
N. Gehrels
R. Hartman
J. Norris
S. Ritz
S. Barnes
L. Londot
E. Pentecost

Technical Session Information:

The scientific program for Gamma 2001 will contain mixture of invited talks, contributed papers, and poster presentations covering the current status of observational and theoretical gamma-ray astrophysics. Results highlighting the nine years of the CGRO mission, as well as related results from space missions -- such as Chandra, XMM-Newton, HETE-II, and HESSI -- and from ground-based VHE gamma-ray and radio observatories will be major themes. Previews of upcoming gamma-ray missions in the new era of imaging gamma-ray instrumentation -- GLAST, AGILE, INTEGRAL, and Swift -- are anticipated.

Topics to be covered include:

Galactic Astronomy:
Pulsars, X-rays binaries and other energetic stellar systems, novae, supernovae and remnants, molecular clouds, unidentified galactic gamma ray sources, interstellar medium, cosmic rays and galactic structure, nucleosynthesis.
Extragalactic Astronomy:
Active galactic nuclei, Seyfert galaxies, blazars, high latitude unidentified sources, cosmic gamma-ray background, nearby normal galaxies and clusters.
Gamma-Ray Bursts*
Solar Flares*
Future Missions and Instrumentation
* these topics will be limited to one oral session each

Invited Speakers include:

J. Bahcall
S. Barthelmy
R. Blandford
J. Buckley
P. Caraveo
R. Diehl
R. Genzel
I. Grenier
J. Grindlay
A. Harding
F. Harrison
M. Hernanz
M. Kamionkowski
C. Kouveliotou
J. Kurfess
P. Mészarós
P. Michelson
A. Mincer
K. Nomoto
J. Ormes
L. Piro
G. Ricker
V. Schönfelder
G. Share
F. Stecker
M. Tavani
P. Ubertini
M. Urry
T. Weekes


Compton Gamma Ray Observatory
Spectrum Astro
Southwest Research Institution
Orbital Sciences
Italian Space Agency (ASI)

Special Session:

On Tuesday, April 3, there will be a pre-conference workshop entitled: Advanced Compton Telescope (ACT) for Gamma Ray Astrophysics-II. The Workshop will also be held at the Baltimore Hilton. The recent GRAPWG report identified ACT as the highest priority new start in the major mission category. The emphasis of the workshop will be on instrument concepts for an advanced Compton telescope, progress in related detector technologies, and simulation activities to support instrumental design and performance, background estimation and reduction, and instrumental sensitivities. This is the second in a series of Workshops related to an Advanced Compton Telescope mission.

Please check the website: for updated plans for the workshop and for information from the first workshop held in May, 2000. If you are interested in attending, please contact either Jim Kurfess at or Dick Kroeger at

There is a $25.00 registration fee to attend this workshop

Conference Registration:

The early registration deadline was March 3, 2001. Attendees could register for the Symposium on-line>, by fax or by postal mail. A secure on-line registration form, and a text form for fax or postal registrations were available. Unless a bank transfer is used (mainly by foreign participants), the registration fee must be included with the registration. For example, if registration is via fax, then a credit card must be used (Visa, MasterCard or American Express); if registration is via postal mail, than all forms of payment are possible (credit cards, check or money order). When using bank transfer, the amount received after charges must be the full amount of the registration fee in US dollars. Please note registration fee for students. Early registration deadline is March 3, 2001. After March 3, ALL registrants will pay the late registration fee. The complete fee schedule is as follows:

Early Registration $275
Early Student Registration (w/proceedings) $175
One day Registration (w/proceedings) $135
Late Registration (AFTER MARCH 3, 2001) $325
Banquet Fee $45
*Proceedings for a COMBINATION of Print and CD-ROM, there is an additional charge of $40. (Please see note in Proceedings section) $40
SPECIAL SESSION: - April 3, 2001
Advanced Compton Telescope (ACT) Workshop

No registration will be considered complete until payment is received. Cancellation of a prepaid registration, minus a small processing fee, can be done any time until Friday, March 30, 2001. For a full refund minus a $25 processing fee, cancellation must be received on or before March 15, 2001. After March 15, until March 30, the processing fee will be $50. After March 30, NO REFUND will be available. ALL TRANSACTIONS MUST BE IN U.S. DOLLARS.

Registration and banquet fees may be remitted in one of the following ways:

Cash/Check/Money Order:
Checks and money orders are be made payable to "USRA". Please make sure attendee's name and "GAMMA 2001" are written on checks. Cash should not be sent through the mail, but may be used at on-site registration.
Credit Cards:
Please use Visa, MasterCard, or American Express. A valid card number and expiration date must be submitted for this payment to be processed. Also include the name exactly as it appears on the card.
Electronic Transfer of Funds (i.e. bank transfers; mainly for foreign participants):
Payment for the full amount of the registration fee should be made by money transfer to:
Bank Name:
Acct. No:
ABA/Routing No:
Bank of America
730 15th St. NW, 2nd Floor
Washington, DC 20005
"GAMMA 2001"
Name of Registrant

Special Events

Education Workshop
An Education workshop for local middle- and high-school educators will be held on the day prior to the opening of the technical sessions (Tuesday, April 3). This will involve sessions on both hands-on astronomy activities as well as short lectures covering a wide range of astronomical topics.
Public Lecture
by Dr. Giovanni Bignami, Italian Space Agency

The public lecture will be held at the Maryland Science Center on Wednesday evening, April 4, at 7:30 PM. Doors will open at 7:00, but note that the entrance for the lecture is at the rear of the building - "Members Entrance", not on the harbor side (some parts of the center are closed at night). There will also be a Planetarium show, entitled "The Raging Sun" (about 20 minutes long) after the lecture; both are in the planetarium, which seats 140. This will be free to the public. They also have access to the "Space Link" exhibit area prior to and after the planetarium show & lecture. The web site for the Maryland Science Center is:

Conference Banquet

A conference banquet is being organized for Thursday evening, April 5. The banquet will take place at the National Aquarium in Baltimore, located in the world-famous Inner Harbor. Follow the journey of water around the world and meet its exotic inhabitants ­ puffins and seals, stingrays and piranha, an electric eel and more ­ up close and personal. The menu will feature a taste of Maryland, focusing on Baltimore with its Little Italy, Fells Point and Lombard Street cuisines. There will be something for everyone.

Local & Hotel Information

NOTE: The Hilton is sold out. Here is a list of a couple alternate hotels. Room blocks have not been set up and prices have not been negotiated. These Hotels are in the vicinity of the Hilton and may even be in walking distance.
  • The Paramount Hotel (soon to be a Comfort Inn), 8 North Howard Street, between Fayette and Baltimore Sts., 1 1/2 blocks from the Hilton. 410-539-1188. Prices range from $111.00 - government rate to $139.00 for a single.
  • Comfort Inn - Mount Vernon Hotel, 24 W. Franklin St., 410-576-8400
  • Brookshire Inner Harbor Suite Hotel, 120 E. Lombard St., 410-547-7282
  • Baltimore Marriott Waterfront Hotel, 700 Aliceanna Street, 410-385-3000 This one is not in walking distance. This hotel is new and is located on the other side of the Aquarium from the Hilton.

The Conference will be held at the Hilton Baltimore & Towers in Baltimore, Maryland. The hotel is located on 20 West Baltimore Street, which is about 6 blocks from the Inner Harbor. It is in walking distance to many restaurants and shopping areas. Participants will be required to make their own room reservations. Please refer to "Gamma2001" when you are making your reservations to obtain the conference rate. Room blocks have been reserved until March 3, 2001, so please make your reservations by then. After that date, the rooms will be on a space and rate available basis.

Telephone: (410) 539-8400)
Domestic Fax: (888) 466-4644
International Fax: (410) 625-1060

Hilton Baltimore & Towers - The Hilton will serve as the conference location. A block of rooms has been reserved at the current government per diem rate of $110 per night for a single room, $130 per night for double, and $150 for Triple and Quads (plus 12.5% state and local taxes). Valet parking is available thru the hotel at a cost of $21.00 per day with in & out privileges. The daily valet parking to attend the meeting only is $18.00 per day. But there are many parking garages at reasonable costs in walking distance of the hotel.

Map of the area: JPEG or PDF

If you are flying into BWI, you don't necessarily need to rent a car, the light rail goes from BWI to the Lexington Market stop, which is just two blocks from the hotel. There is also an Airport Shuttle. Further information about Baltimore and transportation is also available.

For additional information please contact:

Ms. Sandy Barnes
NASA/GSFC Code 661
Greenbelt, Maryland 20771 USA
Phone: (301) 286-7780
Fax: (301) 286-0677

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This page was last modified on May 3, 2001