The Fermi Bubbles: Theory and Observations


April 11 - 12, 2013

SLAC National Accelerator Laboratory, Menlo Park, California

The Fermi bubbles are two large structures in gamma-rays above and below the Galactic center.  They are associated with the microwave haze around the Galactic center discovered in the WMAP data and recently confirmed in the Planck data.  At the moment, there are several theoretical models and simulations developed to explain the shape and the energy spectrum of the bubbles.  In order to distinguish among the different models, a detailed comparison between the theory and the observations is necessary.  The main purpose of the meeting is to foster a collaboration between the scientists working on the theoretical and observational sides of the problem in order to deepen our understanding of the origin and the emission mechanisms associated with the bubbles.  The topics include: observational results related to the Galactic halo region, models and simulations designed to explain the bubbles, and related systems in other galaxies.

Scientific Organizing Committee:  Roger Blandford, Douglas Finkbeiner, Vahe Petrosian, Lukasz Stawarz.

Local Organizing Committee: Anna Franckowiak, Dmitry Malyshev.

Agenda and slides from some of the talks will be available on our Indico web page.




Participant List

Participant List

Last NameFirst NameInstitution



All talks will be in the Kavli Auditorium in the Fred Kavli Building (Bldg 051) at SLAC.

Thursday, April 11

Part 1. Observational results on the Fermi bubbles / haze

Session 1- 9:00 - 10:30am
1. Gamma-ray bubbles, Meng Su.
2. Fermi-LAT update on the bubbles, Anna Franckowiak.
3. X-ray observations of the bubble edges, Jun Kataoka.

(Coffee Break)

Session 2- 11:00 - 12:30pm
4. Planck haze, Davide Pietrobon
5. Connecting microwave and gamma-ray observations, Greg Dobler


Part 2. Theoretical models of the Fermi bubbles

Session 1- 1:30 - 2:30 pm
1. The AGN Jet Model of the Fermi Bubbles, Fulai Guo
2. Star capture by Sgr A* and hot plasma expansion, Dmitry Chernyshov

(Coffee Break)

Session 2- 3:00 - 4:00pm
3. Stochastic acceleration of the CR, Philipp Mertsch
4. MHD simulations of the bubble and haze emission from leptonic AGN jets. Hsiang-Yi Karen Yang

4:15 - 5:15pm KIPAC Colloquium on AMS2 results

Session 3:  Discussion 5:30 - 6:30pm

Friday, April 12
Part 3. Properties of the Galactic center and the Milky way halo

Session 1- 9:00 - 10:30am
1. Sgr A* activity, Frederick Baganoff
2. Sgr A*, Star Formation and Cosmic Rays at the Galactic  Center,  Farhad Yusef-Zadeh

(Coffee Break)

Session 2- 11:00 - 12:30pm
3. Radio observations, Teddy Cheung
4. Insights on the Galactic Center Outflow from UV Absorption Lines, Andrew Fox
5. Galactic Halo,  Josh Peek


Part 4. Observations of similar systems in other galaxies

Session 1- 2:00 - 3:30pm
1. Galactic winds, Joss Bland-Hawthorn
2. Cosmic ray dynamics inside the Cygnus A cluster cavities, Bill Mathews
3. VLBI observation of jets in M87, Avery Broderick

(Coffee Break)

Session 2- 4:00 - 5:00pm
4. Extended lobes in AGN at high energies, Lukasz Stawarz
5. Jets and lobes in Seyfert galaxies, Beatriz Mingo

Discussions 3- 5:00 - 6:00pm

Poster presentations:
1. Suzaku observations of the Fermi bubble edges, Masaya Tahara
2. Parametric Modeling of the Fermi Bubbles, Richard Anantua

Payment Information

Payment Information

There is no registration fee.

Locations & Directions


Local Maps

You can find a series of maps covering the surrounding areas.

» San Francisco Bay Area Map (pdf)

» Stanford/SLAC Local Campus Maps

Ground Transportation

From San Francisco Airport:

From San Jose Airport:

Car Rental:

Enterprise Rent-A-Car is located on campus and offers a free pick-up service from the Stanford Guest House lobby. Guests can take advantage of discounted rates by mentioning the Stanford Guest House.

Enterprise Rent-A-Car
360 Oak Road, Stanford, CA 94305, (650) 833-8060

Marguerite Shuttle (Free shuttle around Stanford) SLAC schedule




If you need a visa to come to the US, send an email to Dmitry Malyshev <> with your name, address and the dates of the visit.



Guests may call the Stanford Guest House desk 24 hours a day at (650) 926-2800 to make reservations. Guests may also book online at Stanford Guest House Registration.  Room availability is limited.  Please make your reservations as soon as possible.

We have a room block at the Guest House.  To get the special rate, click on "Click here for special rates" at the reservation web page.  In "Enter group code" type: BUBBLES.  The room block is available until March 18, 2013.

Other Accomodations:

Lodging Guide



For Qustions, Please contact Dmitry Malyshev (