Research opportunities httpkipacstanfordeducollabstudentresources Events seminars httpkipacstanfordeducollabseminars 40 full members faculty and staff Physics Dept faculty Burchat Cabrera Church Gratta Linde Michelson Petrosian Romani Scherrer Wagoner ID: 392610
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Slide1
Grad student orientation Fall 2011
Research opportunities:
http://kipac.stanford.edu/collab/student_resourcesEvents / seminars: http://kipac.stanford.edu/collab/seminars
* 40+ full members (faculty and staff)* Physics Dept. faculty: Burchat, Cabrera, Church, Gratta, Linde, Michelson, Petrosian, Romani, Scherrer, Wagoner* SLAC PPA Faculty / staff: Bloom, Burke, Digel, Madejski, Roodman, Schindler, Tajima* Joint SLAC + Physics: Abel, Allen, Blandford (director), Funk, Kahn, Kuo, Senatore, Wechsler* ~30 postdocs; ~25 students * General Group Meetings:-Tuesday 11 AM - Varian 3rd floor conf room- Friday 10:30 AM – Kavli 3d floor conf room Slide2
GS Orient 11-2
Astrophysics and Cosmology at Stanford
Two active centersKavli Bldg @SLACPhysics/Astrophysics (P/AP) & Varian buildings on campusGeneral Group Meetings
Tuesday 11:00 AM Varian 3rd floor conf roomFriday 10:30 AM – Kavli 3d floor conf room.many other weekly meetings of individual groupsAstrophysics colloquia – Thursdays 4:00PMRotates between P/AP 101/102 on campus and Kavli Bldg at SLACDo check out http://kipac-prod.stanford.edu/collabSlide3
GS Orient 11-3
Fermi LAT
Large Area Telescope assembled at SLACLaunched in June 2008Blandford, Bloom, Digel, Funk, Michelson (PI), Petrosian, Romani, Madejski, Tajima, + many other SLAC staff and post-docs
e+e–
Slide4
GS Orient 09-4
Gamma-Ray Sky
Lots of New Source DiscoveriesLots of Thesis OpportunitiesSlide5
GS Orient 09-
5Slide6
GS Orient 09-6
Romani Group: High energy Astrophysics
Current focus: Fermi/LAT study of Pulsars and Blazars: Astrophysical Populations and Accelerator PhysicsLAT data – new discoveries piling up
Supporting observations across the E-M spectrum, Modeling, Physicstaking on rotators this yeartalk with any of the characters pictured at http://fsrq.stanford.edu/gamma/ : gGroup (w/ Michelson & Funk)visit P/AP 233, 235; rwr@astro.stanford.edug-rays BHs & spin (Rel. Jets) Pulsars & Wind NebualeSlide7
GS Orient 11-7
Fermi Gamma-ray Space telescope
and the extreme particle acceleratorsFermi is studying lots of new sources – extreme particle accelerators
Broad-band picture needed - radio to optical, IR, UV, X-rays, …Greg Madejski’s main area of interest: black holes and astrophysical jetsFuture: Stanford is involved in development and planning for the next Caltech-led satellite mission NuSTAR, sensitive in the hard X-ray band – will be launched in 2012Definitely looking for students / rotators! madejski@stanford.edu; (650) 926-5184
Radio, optical, and X-ray image of a jet
in the active galaxy Virgo-A
Fermi installed in the rocket fairingSlide8
Stefan Funk: the Crab Nebula flares and the Fermi Bubbles
Fermi “Bubbles”
- diffuse, large-scale gamma-ray
emission in our GalaxyNo publication by the LAT team yetExact properties will yield important information about their originCrab Nebula: mechanisms for particle acceleration? Extend energy spectrum to lower energies, understand time structureBack to the Galaxy with FermiSlide9
After Fermi: CTA – The Cherenkov Telescope array
We plan to build a next-generation camera
Interested? Contact Stefan Funk, funk@slac.stanford.eduSlide10
GS Orient 09-10
X-ray astrophysics
Greg Madejski, Steve Allen, Roger Romani, Roger Blandford, Stefan Funk, Hiro Tajima, Vahe’ PetrosianX-ray data for celestial objects reveal extreme physics, but also allow us to use those objects to study cosmology
We use data from orbiting X-ray satellites: Chandra, XMM-Newton, SuzakuFuture: NuSTAR with Caltech in 2012, Astro-H with Japanese colleagues, 2015Specific projects: how clusters of galaxies form and evolve? How is energy released by matter falling into black holes?
NASA’s, European and Japanese facilitiesSlide11
Solar Flares Clusters of Galaxies
AGNSlide12
Roger Blandford - Fermi Topics
Mainly astrophysical theory:
Gamma ray emission by relativistic jets made by massive spinning black holes in galactic nuclei?Comparing 3D relativistic MHD simulations with observationsParticle acceleration and magnetic amplification at supernova remnantsMaking a self-consistent model of strong shock
Explaining flares in the Crab NebulaNew approaches are needed to explain rapid variation Classical radiation reactionAstrophysical challenges are shedding new light on this old problemTalk to Paul SimeonSlide13
Sarah Church’s Group Opportunities (1-2 rotators F, Sp)
Inflation???
Development of radio amplifiers for investigating:
Inflation through polarization of the Cosmic Microwave Background radiation (QUIET II, CHIP)Epoch of reionization through measurements of highly redshifted CO lines (large-format radio interferometer)Star formation history through molecular gas studies (Octopus at the Green Bank Telescope)Rotators participate in design tasks, prototype fabrication and testingIn the longer term, thesis projects will include deployment, data taking and analysis
Visit our lab – Varian 203/204 or
stop by my office – Varian 344
Note: I am away winter 2012Slide14
Sarah Church’s group (
schurch@stanford.edu
):
The Chajnantor Inflation Probe (CHIP)CHIPLarge format interferometer for CMB measurementsPrototyping underway with deployment expected 2011Possible rotation opportunities in instrument development leading to deployed experiment Slide15
GS Orient 11-15
Kuo Group: Superconducting Detectors
for Cosmology and Astrophysics
R(T)
Operating point
Transition Edge Sensor Thermometer
temperature
absorber
Cold bath (<0.5 K)
thermometer
radiation
We use superconductivity
to detect tiny radiation from
the Big Bang & compact
astronomical objects
Cosmic Microwave Background Polarization
Several experiments in different phases,
Some observing, some under construction
Optical (visible) spectroscopy/polarimetry
of compact objects,
one photon at a timeSlide16
Direct dark matter detection:
SuperCDMS Discovery Potential
Mass of a Dark Matter Candidate (GeV)
CDMS: Cold Dark Matter SearchImprovements in sensitivity by three decades (few 10-44 to 2.10-47) in the next 10 yearsThe origin of Dark Matter is a central question to particlephysics, astrophysics andcosmology
0
Ge
Recoil
Energy
(tens of keV)
Dark Matter
(mass ~GeV – TeV)
CDMS is now a joint SLAC – Stanford Physics project
Contact: Prof. Blas Cabrera, Dr. Rich PartridgeSlide17
GS Orient 11-17
Who, Where, Rotation Slots?
High energy astrophysics:Roger Blandford (SLAC,SU) – R FWSp?
Elliott Bloom (SLAC) – R FWSpStefan Funk (SLAC)Andrei Linde (SU)Greg Madejski (SLAC) -- R FWSpPeter Michelson (SU) – R FWVahe Petrosian (SU) -- RRoger Romani (SU) -- R WSpRobert Wagoner (SU) – R?CMB: Sarah Church (SU) -- RChao-Lin Kuo (SU) – R F,WinSolar: Philip Scherrer (SU) – R FWSpPeter Sturrock (SU) Rotation positions noted from responses received. Others likely have Rotation Positions as well! Please check
Where most likely found
When rot slot likely avail.