Home
Research
Publications
My CV
Teaching
UMd Talks
Other stuff
Contact me
Research Talks

These are a selected list of research presentations.  Links to the on-line power-point presentation are provided when available.   Color code is as follows: invited colloquia/seminar, invited conference talks, other colloquia/seminars.  

Presentations given in 2003

  • "Blowing bubbles in B-flat: The physics of AGN-cluster interactions"; 20th November 2003, seminar to the Astronomy Department at the University of Maryland.


  • "Prospects for probing AGN physics with future X-ray Timing Observations"; 4th November 2003, invited talk at the "X-ray Timing 2003" meeting, Cambridge, MA


  • "Potential Science from the BAT hard X-ray survey";20th October 2003, invited presentation to the NASA Swift Science Team, NASA Goddard Space Flight Center, Greenbelt, MD


  • "Spectra and spectral variability of accrertion disks in AGN";25th July 2003, invited review talk at the 10th Marcel Grossman meeting on General Relativity, Rio de Janiero, Brazil


  • "Broad Iron Lines in AGN";24th July 2003, invited review talk at the 10th Marcel Grossman meeting on General Relativity, Rio de Janiero, Brazil


  • "Probing Spacetime Structure Near Black Holes";6th June 2003, NAS German-American Frontiers of Science Meeting, Irvine, CA


  • "Spectra of accretion disks in AGN and GBHCs";5th May 2003, invited review talk at the "Constellation X" meeting, Columbia University, New York City


  • "New directions in black hole astrophysics";8th January 2003, invited review talk at the 201st meeting of the American Astronomical Society, Washington DC.


Presentations given in 2002

  • "X-ray observations of black holes and black hole accretion disks"; 21st October 2002, invited colloquium to the Astronomy Department, University of Virginia, Charlottlesville, VA


  • "Recent X-ray studies of AGN"; invited review talk at the COSPAR meeting, 10-14th October 2002, Houston, TX


  • "X-ray diagnostics of black holes"; invited plenary talk at the SPIE meeting, 25th-27th August 2002, Hilton Waikolao Village, Hawaii


  • "X-ray probes of black hole accretion disks";9th July 2002, invited talk at the meeting on "Making Light of Gravity", 8-12th July 2002, Institute of Astronomy, Cambridge, UK


  • "The spinning black hole in MCG-6-30-15"; 24th April 2002; invited seminar to the Astrophysical Theory Group, University of Illinois, Champaign, IL


  • "Magnetic Torques in accretion disks";27th February; invited talk at the meeting on "Black Holes: Theory confronts Reality 3 years later", 25-28 February 2002, Institute for Theoretical Physics, Santa Barbara, CA


  • "X-ray bubbles and shells: the hydrodynamics of radio-galaxy/cluster interactions";13th February 2002; invited colloquium to Dept. of Astronomy, Univ. of Maryland, MD


  • "The spinning black hole in MCG-6-30-15";11th February 2002; seminar to the AGN group at the Space Telescope Science Institute, Balitmore, MD


  • "X-ray bubbles and shells: the hydrodynamics of radio-galaxy/cluster interactions";25th January 2002; invited colloquium at the VLA-AOC, Socorro, NM


  • "XMM-Newton/EPIC observations of MCG-6-30-15: evidence for the interaction of black hole spin with the inner accretion disk"; 10th January 2002; contributed talk at the 199th AAS meeting, 6-10 January 2002, Washington DC.


Presentations given in 2001

  • "XMM-Newton/EPIC observations of MCG-6-30-15: evidence for the extraction of spin energy from a black hole"; 27th November 2001; seminar to CAS at the John Hopkins University, Baltimore. Full presentation available here.


  • "XMM-Newton/EPIC observations of MCG-6-30-15: evidence for the extraction of spin energy from a black hole"; 20th November 2001; seminar to the Laboratory for High Energy Astrophysics at NASA Goddard Space Flight Center.


  • "XMM-Newton/EPIC observations of MCG-6-30-15: evidence for the extraction of spin energy from a black hole"; 23th October 2001; seminar to the Theoretical Group at the Dept. of Astronomy, University of Maryland, College Park.


  • "Iron line diagnostics of active galactic nuclei"; June 2001; invited review at the workshop on "X-ray emission from accreting black holes", June 2001, John's Hopkins University, Baltimore. Full presentation available here.


Presentations given in 2000

  • "MHD simulations of the inner regions of black hole accretion disks"; 13th December 2000, invited parallel talk at the 20th Texas Symposium on Relativistic Astrophysics, Austin, Texas.


  • "The hydrodyamics of radio galaxy cocoons"; 3rd August 2000, Oral presentation at the workshop on "Fields and Particles in Radio Galaxies", Oxford, UK


  • "X-ray iron line variability: constraints on the inner accretion disk"; 21st June 2000, invited talk at the workshop on "Probing the physics of Active Galactic Nuclei by Multiwavelength Monitoring", NASA Goddard Space Flight Center, Greenbelt, Maryland.


  • X-ray iron line constraints on the inner accretion disk and black hole spin"; 5th June 2000, invited talk at the summer meeting of the Americal Astronimical Society, Rochester NY.


  • "X-ray studies of AGN - closing in on massive black holes"; 9th May, invited colloquium to the Astronomy Department at MIT, Cambridge, MA.


  • "X-ray studies of AGN - closing in on massive black holes"; 2nd Febrary 2000, invited colloquium to the Astronomy Department at the California Institute for Technology, Pasadena, CA.


 

Presentations given in 1999

  • "Probing strong gravity with future X-ray missions"; 9th September 1999, invited presentation at the "X-ray Astronomy 1999" meeting in Bologna, Italy.


  • "Probing supermassive black holes with X-ray spectroscopy"; 7th April 1999, invited colloquium to the Astronomy Department at the Penn State University, State College, PA.


  • "Probing supermassive black holes with X-ray spectroscopy"; 1st April 1999, colloquium to the Astronomy and Physics Department at Johns Hopkins University, Baltimore, MD.


 

Presentations given in 1998

  • "Reverberation mapping of AGN accretion disks"; 17th December 1998, presented at the 19th Texas Symposium on Relativistic Astrophysics, Paris, France.


  • "X-ray spectroscopic probes of the inner regions of AGN"; 13th November 1998, invited colloquium to the Astronomy Department at Columbia University, New York.


  • "Reverberation mapping of black hole accretion disks"; 16th September 1998, seminar to JILA, University of COlorado, Boulder, CO.


  • "Compton reflection and iron fluorescence in AGN and GBHCs"; 30th June 1998, invited review talk at the meeting on "High Energy processes in accreting black holes", Graftavallen, Sweden.


 

Presentations given in 1997

  • "Probing supermassive black holes with X-ray spectroscopy"; 8th December 1997, seminar to the Space Telescope Science Institute, Baltimore, MD.


  • "Probing supermassive black holes with X-ray spectroscopy"; 13th November 1997, invited colloquium at the University of Kentucky, Lexington, KY.


  • "Beyond the standard mdoel of broad iron lines in AGN"; 5th November 1997, presented at the 1997 HEAD meeting, Estes Park, CO.


  • "The inner accretion disk in M87"; 19th September 1997, presented at "The M87 Ringberg Workshop", Ringberg, Germany.


  • "Probing supermassive black holes with X-ray spectroscopy"; 11th September 1997, invited colloquium at JILA, University of Colorado, Boulder, CO.


  • "Warm absorbers in Seyfert 1 galaxies"; 20th February 1997, presented at meeting on "Mass Ejection from AGN", Pasadena, CA.


 

Presentations given in 1996

  • "Warm absorbers in AGN"; 12th March 1996, presented at "X-ray Imaging and Spectroscopy of Hot Plasmas", Tokyo, Japan.


 

Presentations given in 1995

  • "The X-ray properties of Cygnus-A"; 3rd May 1995, invited talk at the workshop "Cygnus-A: A study of a radio galaxy", Greenbank, WV.


 
[Home] [Research] [Publications] [My CV] [Teaching] [UMd Talks] [Other stuff] [Contact me]