Jean M. Quashnock is a researcher in the Sloan Digital Sky Survey (SDSS), also known as the Map of the Universe Project, an effort to catalog and map 100 million galaxies. His research interests include cosmology, large-scale structure in the universe, high-energy astrophysics and gamma-ray bursts, and absorption-line systems in quasar spectra. His work has been published in more than 60 scientific publications.
Professor Quashnock is an active member of the American Astronomical Society, the American Physical Society, the American Association of Physics Teachers, and Sigma Xi. He serves as an associate at the University of Chicago, where he previously was a lecturer and a research scientist, and collaborates with researchers there, in the Department of Astronomy & Astrophysics, and at Fermilab. He also has lectured in the Medical Physics Department of the College of Health Professions, Rosalind Franklin University.
Professor Quashnock earned his B.Sc. in physics from McGill University, and Ph.D. from Princeton University in 1990. He studied the dynamics of topological defects and the effects of phase transitions in the early universe (The First Three Microseconds: Cosmic Strings, Axions, and Magnetic Fields). He has a particular interest in acoustics and the physics of music. He sings tenor in various choirs in Wisconsin. After doing postdoctoral work at the University of Chicago, he joined the Carthage faculty in 1999.
- Ph.D., M.A. — Princeton University, 1990
- B.Sc. — Physics, McGill University, 1985
- PHY 1030 Astronomy
- PHY 1050 Cosmology: The Big Bang
- PHY 2210 General Physics II
- PHY 2300 Modern Physics
- PHY 2470 Mathematics for Scientists and Engineers
- PHY 3200 Mechanics
- PHY 4100 Astrophysics
- PHY 4200 Quantum Mechanics
Extreme ultraviolet quasar colours from GALEX observations of the SDSS DR14Q catalog
(D. Vanden Berk, S. Wesolowski, M. Yeckley, J. Marcinik, J. Quashnock, L. Machia, & J. Wu) Mon. Not. R. Astron. Soc., 493, 2745 (2020).
Galaxies with background QSOs - I. A search for strong galactic Hα lines
(D. G. York, L. A. Straka, M. Bishof, S. Kuttruff, D. Bowen, V. P. Kulkarni, M. Subbarao, G. Richards, D. Vanden Berk, P. B. Hall, T. Heckman, P. Khare, J. Quashnock, L. Ghering, & S. Johnson) Mon. Not. R. Astron. Soc. 423, (2012).
A Cross—Correlation Analysis of Mg II Absorption—Line Systems and Luminous Red Galaxies from the SDSS DR5
(B. F. Lundgren, R. J. Brunner, D. G. York, A. J. Ross, J. M. Quashnock, A. D. Myers, D. P. Schneider, Y. Alsayyad, & N. Bahcall) Ap. J. 698, 10 (2009).
Astroinformatics: A 21st Century Approach to Astronomy
(K. Borne et al.) Astro2010: The Astronomy and Astrophysics Decadal Survey, Position Papers, no. 6 (2009).
Visualization of large scale structure from the Sloan Digital Sky Survey
(M. U. SubbaRao, M. A. Aragón-Calvo, H. W. Chen, J. M. Quashnock, A. S. Szalay, & D. G. York) New Jour. Phys. 10, 125015 (2008).
Newly Recognized QSO/Galaxy Pairs at Small Impact Parameters for Low Redshift Galaxies
(J. M. Quashnock, S. Kuttruff, M. Bishof, D. G. York, et al.) Bull. American Astron. Soc. 212, # 26.03 (2008).
The Sloan Digital Sky Survey QSO absorption line catalogue
(D. G. York et al.) in Probing Galaxies through Quasar Absorption Lines: Proceedings IAU Colloquium 199, P. R. Williams, C. Shu & B. Menard, eds., (Cambridge: Cambridge University Press), Vol. 1, pp. 58-64 (2005).
Estimating the Large—Scale Structure of the Universe Using QSO Carbon IV Absorbers
(J.-M. Loh, M. L. Stein, & J. M. Quashnock) J. Amer. Stat. Assoc. 98, no. 463, 522 (2003).
Estimating Large-Scale Structure From QSO Absorbers: Using Across—Line Information
(J.-M. Loh, J. M. Quashnock, & M. L. Stein) in Statistical Challenges in Modern Astro- physics III, E. D. Feigelson & G. J. Babu, eds., (New York: Springer), p. 459 (2003).
A Measurement of the Three—Dimensional Clustering of C IV Absorption—Line Systems on Scales of 5 to 1000 Mpc
(J.-M. Loh, J. M. Quashnock, & M. L. Stein) Ap. J. 560, 606 (2001).
Estimating the K-function of a point process with an application to cosmology
(M. L. Stein, J. M. Quashnock, & J.-M. Loh) Ann. Statistics 28, 1503 (2000).
Inference for Point Processes Observed Over Many Regions with an Application to Cosmology
(M. L. Stein, J. M. Quashnock, & J.-M. Loh) in Proceedings of the International Conference on Stereology, Spatial Statistics and Stochastic Geometry, V. BeneË‡s, J. Jan ÌaË‡cek, & I. Saxl, eds., (Prague: Union of Czech Mathematicians and Physicists), p. 52 (1999).
Optical and Near—Infrared Observations of the Afterglow of GRB980329 from 15 Hours to 10 Days
(D. E. Reichert, D. Q. Lamb, M. R. Metzger, J. M. Quashnock, D. M. Cole, F. J. Castander, S. Klose, J. E. Rhoads, A. S. Fruchter, A. R. Cooray, & D. E. Vanden Berk) Ap. J. 517, 692, (1999).
Cluster-Cluster Strong Lensing: Expectations and Detection Methods
(A. R. Cooray, G. P. Holder, & J. M. Quashnock) Mon. Not. R. Astron. Soc. 305, L11 (1999). http://adsabs.harvard.edu/abs/1999MNRAS.305L..11C
A New Measure of the Clustering of QSO Heavy—Element Absorption—Line Systems
(J. M. Quashnock & M. L. Stein) Ap. J. 515, 506, (1999). http://adsabs.harvard.edu/abs/1999ApJ…515..506Q
Gravitational Lensing and the Hubble Deep Field
(A. R. Cooray, J. M. Quashnock, & M. C. Miller) in Proceedings of the 9th Annual October Astrophysics Conference in Maryland, “After the dark ages: when galaxies were young”, S. S. Holt & E. P. Smith, eds., (New York: AIP), p. 180 (1999). http://adsabs.harvard.edu/abs/1999AIPC..470..180C
A Lower Limit on Omega_m-Omega_Lambda Using Gravitational Lensing in the Hubble Deep Field
(A. R. Cooray, J. M. Quashnock, & M. C. Miller) Ap. J. 511, 562 (1999).
Gravitational Lensing Limits on the Average Redshift of Gamma—Ray Bursts
(D. E. Holz, M. C. Miller, & J. M. Quashnock) Ap. J. 510, 54 (1999).
The Power Spectrum of QSO Absorbers at High Redshift
(J. M. Quashnock) in Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, J. Paul, T. Montmerle, & E. Aubourg, eds., (CEA Saclay), (1998).
A Lower Limit on Omega - Lambda Using the Gravitational Lensing Rate in the Hubble Deep Field
(J. M. Quashnock, A. R. Cooray, & M. C. Miller) in Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, J. Paul, T. Montmerle, & E. Aubourg, eds., (CEA Saclay), (1998).
Gravitational Lensing Limits on the Average Redshift of Gamma-Ray Bursts
(M. C. Miller, J. M. Quashnock, & D. E. Holz) in Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, J. Paul, T. Montmerle, & E. Aubourg, eds., (CEA Saclay), (1998).
Evolution of the Clustering of QSO Absorbers from Redshifts 4 to 0
(J. M. Quashnock & D. E. Vanden Berk) in Bull. American Astron. Soc. 193, # 85.06 (1998).
Optical and Near-Infrared Follow-up Observations of GRB980329
(E. Palazzi et al.) Astron. & Astrophys. 336, L95 (1998).
The Form and Evolution of the Clustering of QSO Heavy—Element Absorption—Line Systems
(J. M. Quashnock & D. E. Vanden Berk) Ap. J. 500, 28 (1998).
Are the Four Bursts of 1996 October 27-29 Due to Repetition of a Single Source?
(C. Graziani, D. Q. Lamb, & J. M. Quashnock) in Gamma-Ray Bursts: AIP Conference Proceedings 428, C. A. Meegan, R. D. Preece, & T. M. Koshut, eds., (New York: AIP), p. 161 (1998).
Large—Scale Structure as Seen from QSO Absorption—Line Systems
(J. M. Quashnock, D. E. Vanden Berk, & D. G. York) in Proceedings of the 18th Texas Symposium on Relativistic Astrophysics, A. V. Olinto, J. A. Frieman, & D. N. Schramm, eds., (Singapore: World Scientific), p. 655 (1998).