Dr. Tahir Yaqoob is a senior research scientist affiliated with the University of Maryland Baltimore Country (UMBC), and the Center for Research and Exploration in Space Science and Technology (CRESSTII), specializing in the area of X-ray astrophysics, with more than 25 years experience. He has been a member of the "Science Working Group" (SWG) for a number of X-ray astronomy missions (ASCA, Astro-E, Astro-E2 (Suzaku), and Hitomi). Dr. Yaqoob's most active areas of research concern X-ray observations and modeling of physical processes in accreting black-hole systems, from the extreme conditions in the vicinity of the black hole, out to the parsec-scale circumnuclear environment. Dr. Yaqoob also had more than 25 years experience teaching and mentoring physics, math, and astronomy, from pre-undergraduate to post-Ph.D. levels.
Tahir Yaqoob
(RESEARCH SCIENTIST)
| Email: | tahir.yaqoob-1@nasa.gov |
| Phone: | 301.286.5015 |
| Org Code: | 662 |
| Address: |
NASA/GSFC Mail Code 662 Greenbelt, MD 20771 |
| Employer: | UNIVERSITY OF MARYLAND BALTIMORE CO |
Brief Bio
Research Interests
Modeling physical processes in accreting black-hole and compact object systems
Astrophysics: X-ray AstrophysicsActive Galactic Nuclei (AGN), quasars
Astrophysics: Active Galactic Nuclei (AGN)Positions/Employment
Royal Society/JSPS Postdoctoral Fellowship
Institute of Space and Astronautical Science - Sagamihara, Kanagawa, Japan
August 1990 - September 1991
Royal Society/JSPS Postdoctoral Fellowship
Institute of Astronomy - Cambridge, UK
October 1991 - September 1992
Research Scientist
USRA - NASA/Goddard Space Flight Center, MD, USA
October 1992 - April 2000
Research Scientist
University of Maryland Baltimore Country (UMBC) - Maryland, USA (located at GSFC)
May 2000 - September 2000
Principal Research Scientist
Johns Hopkins University - Baltimore, USA
October 2000 - May 2013
Senior Research Scientist
University of Maryland Baltimore Country (UMBC) - Maryland, USA (located at GSFC)
May 2013 - Present
Education
Tahir Yaqoob obtained a B.A. (Hons) in Physics at the University of Oxford, UK, in 1986, and a PhD in X-ray Astrophysics at the University of Leicester, UK, in 1990. He subsequently continued his research in X-ray astronomy at the Institute of Space and Astronautical Science (ISAS), Japan, on a Royal Society/JSPS Fellowship, and then at the Institute of Astronomy, Cambridge, UK, on a Royal Society Fellowship.
Selected Publications
Refereed
2016. "No signatures of black hole spin in the X-ray spectrum of the Seyfert 1 galaxy Fairall 9." Monthly Notices of the Royal Astronomical Society 462 (4): 4038-4054 [10.1093/mnras/stw1824] [Journal Article/Letter]
2015. "A Compton-thin solution for theSuzakuX-ray spectrum of the Seyfert 2 galaxy Mkn 3." Monthly Notices of the Royal Astronomical Society 454 (1): 973-990 [10.1093/mnras/stv2021] [Journal Article/Letter]
2012. "The nature of the Compton-thick X-ray reprocessor in NGC 4945." Monthly Notices of the Royal Astronomical Society 423 (4): 3360-3396 [10.1111/j.1365-2966.2012.21129.x] [Journal Article/Letter]
2010. "On the efficiency of production of the Fe Kα emission line in neutral matter." Monthly Notices of the Royal Astronomical Society 401 411 [Full Text] [10.1111/j.1365-2966.2009.15657.x] [Journal Article/Letter]
2007. "Monitoring the Violent Activity from the Inner Accretion Disk of the Seyfert 19 Galaxy NGC 2992 with RXTE." The Astrophysical Journal 666 96 [Full Text] [10.1086/520039] [Journal Article/Letter]
2007. "A soft X-ray study of type I active galactic nuclei observed with Chandra high-energy transmission grating spectrometer." Monthly Notices of the Royal Astronomical Society 379 1359 [Full Text] [10.1111/j.1365-2966.2007.11993.x] [Journal Article/Letter]
2007. "Precision Fe Kα and Fe Kβ Line Spectroscopy of the Seyfert 19 Galaxy NGC 2992 with Suzaku." Publications of the Astronomical Society of Japan, Vol59, NoSP1, pp283-299 59 283 [Full Text] [Journal Article/Letter]
2005. "Iron K Features in the Quasar E1821+643: Evidence for Gravitationally Redshifted Absorption?." The Astrophysical Journal 623 112 [Full Text] [10.1086/428432] [Journal Article/Letter]
2004. "An Extended Scheme for Fitting X-Ray Data with Accretion Disk Spectra in the Strong Gravity Regime." The Astrophysical Journal Supplement Series 153 205 [Full Text] [10.1086/421115] [Journal Article/Letter]
2004. "The Cores of the Fe K Lines in Seyfert 1 Galaxies Observed by the Chandra High Energy Grating." The Astrophysical Journal 604 63 [Full Text] [10.1086/381731] [Journal Article/Letter]
2003. "Fe XXV and Fe XXVI Diagnostics of the Black Hole and Accretion Disk in Active Galaxies: Chandra Time-resolved Grating Spectroscopy of NGC 7314." The Astrophysical Journal 596 85 [Full Text] [10.1086/377687] [Journal Article/Letter]
2001. "Quasi-periodic Oscillation in Seyfert Galaxies: Significance Levels The Case of Markarian 766." The Astrophysical Journal 562 L121 [Full Text] [10.1086/338252] [Journal Article/Letter]