Julia Dusk Kennefick

Julia Dusk Kennefick

Associate Professor

J. William Fulbright College of Arts & Sciences


Phone: 479-575-5916

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I am an Associate Professor in the Physics Department and an observational astronomer.  I am a native of Arkansas and a graduate of the University of Arkansas, B.S. Physics, 1989.  I attended graduate school at Caltech, earning my Ph.D. in 1995.  I did postdoctoral work at Ohio State University and Oxford University before coming back to the University of Arkansas as an assistant professor of Physics in 2003.  My research focuses on active galactic nuclei - their properties, evolution, and relation to their host galaxies.  In particular, I conduct surveys looking for distant quasars, study the spectral properties of active galaxies, and use properties unique to active galaxies to compute the mass of the central black holes responsible for their large energy output in order to relate this mass to the properties of their host galaxies, such as the spiral patterns in their disks.  More recently, I have begun a new project studying the outskirts of nearby galaxies, looking for possible low luminosity dwarf galaxies in their vicinities.  I also work with a student on her research studying gamma ray bursts.  I have used both ground and space based telescopes in my work, such as the Palomar 200" inch telescope in Southern California, and telescopes in Hawaii, Australia, Chile, and Arizona.  I also use data from the Hubble Space Telescope, the Spitzer Infrared Space Telescope, and GALEX, an ultraviolet telescope.  

I live near campus.  My husband, Dan, is also an Associate Professor in the Physics Department.  We have 3 children and a dog and two mice.

ASTR 2003 Survey of the Universe

ASTR 4073 Cosmology

PHYS 3113 Analytical Mechanics

PHYS 3923 Honor Colloquium on Cosmology

B.S. in Physics, May, 1989, University of Arkansas, Fayetteville, AR

Ph.D. in Physics, October 1995, California Institute of Technology (Caltech), Pasadena, CA

“Strong Evidence for the Density-wave Theory of Spiral Structure in Disk Galaxies” - Pour-Imani, Hamed; Kennefick, Daniel; Kennefick, Julia; Davis, Benjamin L.; Shields, Douglas W.; Shameer Abdeen, Mohamed 2016, Astrophysical Journal Letters, 827, 2

“A Fundamental Plane of Spiral Structure in Disk Galaxies” - Davis, Benjamin L.; Kennefick, Daniel; Kennefick, Julia; Westfall, Kyle B.; Shields, Douglas W.; Flatman, Russell; Hartley, Matthew T.; Berrier, Joel C.; Martinsson, Thomas P. K.; Swaters, Rob A. 2015, Astrophysical Journal Letters, 802, 13

 “The Black Hole Mass Function Derived from Local Spiral Galaxies” - Benjamin L. Davis, Joel C. Berrier, Lucas Johns, Douglas W. Shields, Matthew T. Hartley, Daniel Kennefick, Julia Kennefick, Marc S. Seigar, and Claud H. S. Lacy, 2014, Astrophysical Journal, 789, 124

“Further Evidence for supermassive Black Hole mass - pitch angle relation” -  Joel C. Berrier, Benjamin L. Davis, Daniel Kennefick, Julia D. Kennefick,  Marc S. Seigar, R. Scott Barrows, Matthew Hartley, Doug Shields, Misty C. Bentz  and Claud H. S. Lacy 2013, Astrophysical Journal, 769, 132

“Identification of Outflows and Candidate Dual Active Galactic Nuclei in SDSS Quasars at z = 0.8-1.6” - R. Scott Barrows, Claud H. Sandberg Lacy, Julia D. Kennefick, Julia M Comerford, Daniel Kennefick, and Joel Berrier 2013, Astrophysical Journal, 769, 95.

“Measurement of Galactic Logarithmic Spiral Arm Pitch Angle Using Two-Dimensional Fast Fourier Transform Decomposition” by Ben Davis, Joel Berrier, Doug Shields, Julia Kennefick, Daniel Kennefick, Claud Lacy, Marc Seigar and Ivanion Puerari 2012, Astrophysical Journal Supplements, 199, 33.

“On the Link Between Central Black Holes, Bar Dynamics, and Dark Matter Halos in Spiral Galaxies”, P. Treuthardt, M. Seigar, A. Sierra, I. Al-Baidhany, H. Salo, D. Kennefick, J. Kennefick, C. Lacy 2012, MNRAS, 423, 3118.

 “Unusual Double-peaked Emission in the SDSS Quasar J093201.60+031858.7”, Barrows, R.S., Lacy, C.H.S., Kennefick, D., Kennefick, J., & Seigar, M. 2010, New Astronomy, Vol. 16, Iss. 2, p. 122-127. 

“Infrared Imaging of SDSS Quasars: Implications for the Quasar K Correction”, Kennefick, J. & Bursick, S. 2008, Astron. J., 136, 1799.

  “Discovery of a Relationship Between Spiral Arm Morphology and Supermassive Black Hole Mass in Disk Galaxies", Seigar, M., Kennefick, D., Kennefick, J. & Lacy, C.H.S. 2008, Astrophysical Journal Letters, 678, 93.

“The BTC40 Survey for Quasars at 4.8 < z < 6”, Monier, E., Kennefick, J.D., Osmer, P.S., Hall, P.B., Smith, M.G., Dalton, G.B., and Green, R.F. 2002, Astron. J., 124, 2971.

 “Quasar Candidates in the Hubble Deep Field”, Conti, A., Kennefick, J.D., Martini, P., and Osmer, P.S. 1999, Astron. J., 117, 645.

 “A Deep Multicolor Survey. IV. The Electronic Stellar Catalog”, Osmer, P.S., Kennefick, J.D., Hall, P.B., and Green, R.F. 1998, Astrophys. J. Supp., 119, 189.

“A Deep Multicolor Survey. III. Additional Spectroscopy and Implications for the Number Counts of Faint Quasars”, Kennefick, J.D., Osmer, P.S., Hall, P.B., and Green, R.F. 1997, Astron. J., 114, 2269.

 “A Multicolor CCD Survey for Faint z > 4 Quasars”, Kennefick, J.D., Djorgovski, S.G., and Meylan, G. 1996, Astron. J., 111, 1816.

 “The Luminosity Function of z > 4 Quasars from the Second Palomar Sky Survey”, Kennefick, J.D., Djorgovski, S.G., and de Carvalho, R.R. 1995, Astron. J., 110, 2553.

“The Discovery of Five Quasars at z > 4 Using the Second Palomar Sky Survey”, Kennefick, J.D., de Carvalho, R.R., Djorgovski, S.G., Wilber, M.M., Dickson, E.S, Weir, N., Fayyad, U., and Roden, J. 1995, Astron. J., 110, 78.

 “Deep Galaxy Counts in the K-band with the Keck Telescope”, Djorgovski, S., Soifer, B.T., Pahre, M.A., Larkin, J.,  Smith, J.D., Neugebauer, G., Smail, I.R., Matthews, K., Hogg, D.W., Blandford, R.D., Cohen, J., Harrison, W., and Nelson J.  1995, Astrophys. J. Letters, 438, L13.

 “1608+654: A New Quadruple Lens System Found in the CLASS Gravitational Lens Survey”, Myers, S., Fassnacht, C., Blandford, R., Djorgovski, S., Matthews, K., Neugebauer, G., Pearson, T., Readhead, A.,  Smith, J., Thompson, D., Browne, I., Wilkinson, P., Nair, S., Jackson, N., Snellen, I., Miley, G., de Bruyn, G., and Schilizzi, R. 1995,  Astrophys. J. Letters, 447, L5.

 “Multicolor Detection of High-Redshift Quasars: I. Two Objects at z > 4”, Smith, J.D., Thompson, D., and Djorgovski, S. 1994,  Astron. J., 107, 24.

“Deep Imaging of the Field of z = 4.9 Quasar PC 1247+3406, and Faint Galaxy Counts in the K-band with the Keck Telescope”, Soifer, B.T., Matthews, K., Djorgovski, S., Graham, J.R., Harrison, W., Jernigan, G., Larkin, J., Lin, S., Nelson, J., Neugebauer, G., Smith, G., Smith, J.D., and Ziomkowski, C. 1994, Astrophys. J. Letters, 420, L1.

“Multicolor Detection of High-Redshift Quasars: II. Five Objects at z ³ 4”, Smith, J.D., Djorgovski, S., Thompson, D., Brisken, W., Neugebauer, G., Matthews, K., Meylan, G., Piotto, G., and Suntzeff, N. 1994, Astron. J., 108, 1147.

  “A Hypervelocity Microparticle Impacts Laboratory with 100 km/s Projectiles”, P.W. Keaton, et al. 1990, Int. J. Impact Engng., 10, 295.

 “A New 120K TL-CA-BA-CU-O Superconductor”, Sheng, Z.Z., Kiehl, W., Bennett, J., Elali, A., Marsh, D., Mooney, G.D., Arammash, F., Smith, J., Viar, D., and Hermann, A. 1988, Applied Physics Letters, 52, 1738.