Lafayette College physics students have the opportunity to participate in original undergraduate research during the semesters and in the summers. Their results are significant and are often published in refereed journals and in conference proceedings.

Refereed Journals

  • Z. Boekelheide, Z.A. Hussein ’17, and S. Hartzell ’16, “Electronic measurements in an alternating magnetic field (AMF) for studying magnetic nanoparticle hyperthermia: Minimizing eddy current heating,” IEEE Transactions in Magnetics 52, 5400304 (2016).
  • J.B. Kanner, T.B. Littenberg, N. Cornish, M. Millhouse, E. Xhakaj ’17, F. Salemi, M. Drago, G. Vedovato and S. Klimenko, “Leveraging waveform complexity for confident detection of gravitational waves,” Physical Review D 93, 022002 (2016).
  • A. M. Matthews ’15, D. J. Nice, E. Fonseca, Z. Arzoumanian, K. Crowter, P. B. Demorest, T. Dolch, J. A. Ellis, R. D. Ferdman, M. E. Gonzalez, G. Jones, M. L. Jones, M. T. Lam, L. Levin, M. A. McLaughlin, T. T. Pennucci, S. M. Ransom, I. H. Stairs, K. Stovall, J. K. Swiggum, and W. Zhu, “The NANOGrav Nine-year Data Set: Astrometric Measurements of 37 Millisecond Pulsars,” The Astrophysical Journal 818, 92 (2016).
  • A. Kortyna, C. Tinsman ’11, J. Grab ’10, M.S. Safronova, and U.I. Safronova, “Experimental and theoretical study of the 6d3/2 polarizability of cesium,” Physical Review A 83, 042511 (2011).
  • A. Kortyna, V. Fiore ’08, and J. Farrar ’07, “Measurement of the Cesium 7d 2D3/2 hyperfine coupling constants in a thermal beam using two-photon fluorescence spectroscopy,” Physical Review A 77, 062505 (2008).
  • A. Baykal, S. Ç. İnam, M. J. Stark, Carolyn M. Heffner ’06, and A. E. Erkoca, “Timing Studies on RXTE Observations of SAX J2103.5+4545,” Monthly Notices of the Royal Astronomical Society 374, 1108 (2007).
  • A. Dougherty and Thomas Nunnaly ’07, “The transient growth of ammonium chloride dendrites,” Journal of Crystal Growth 300, 467 (2007).
  • R. Giovanelli, M. P. Haynes, B. R. Kent, A. Saintonge, S. Stierwalt, A. Altaf ’06, T. Balonek, N. Brosch, S. Brown, B. Catinella, A. Furniss, J. Goldstein ’07, G. L. Hoffman, R. A. Koopman, D. Kornreich, B. Mahmood, A. Martin, A. Mitschang, E. Momjian, P. H. Nair, J. L. Rosenberg, and B. Walsh, “The Arecibo Legacy Fast ALFA Survey: III. HI Source Catalog of the Northern Virgo Cluster Region,” Astronomical Journal 133, 2569-2583 (2007).
  • A. Kortyna, N. A. Masluk ’06, and T. Bragdon ’04, “Measurement of the 6d 2D3/2 hyperfine structure of cesium using resonant two-photon, sub-Doppler spectroscopy, Physical Review A 74, 022503 (2006).
  • A. Dougherty and Mayank Lahiri ’05, “Shape of ammonium chloride dendrite tips at small supersaturation,” Journal of Crystal Growth 274, 233 (2005).
  • G. L. Hoffman, E. E. Salpeter, and A. Hirani ’04 “Mini High-Velocity Clouds,” Astronomical Journal 128, 2932-2941 (2004).
  • G. L. Hoffman, N. Brosch, E. E. Salpeter, and N. J. Carle ’99, “Neutral Hydrogen Mapping of Virgo Cluster Blue Compact Dwarf Galaxies,” Astronomical Journal 126, 2774-2796 (2003).
  • M. J. Stark and Malinda Saia ’04, “Doppler Modulation of X-Rays in Cygnus X-3,” Astrophysical Journal 587 L101 (2003).
  • G. L. Hoffman, E. E. Salpeter, and M. G. Pocceschi ’02 “High Velocity Cloud Edges and Mini-High-Velocity Clouds,” Astrophysical Journal576, 232-240 (2002).
  • G. L. Hoffman, E. E. Salpeter, and N. J. Carle ’99, “The Fine Structure and Outskirts of DDO 154,” Astronomical Journal 122, 2428-2443 (2001).
  • G. L. Hoffman, N. Y. Lu, E. E. Salpeter, and B. M. Connell ’98, “Dark Matter and Gas Concentrations in the NGC 4532 / DDO 137 System,” Astronomical Journal117, 811 (1999).
  • G. L. Hoffman, N. Y. Lu, E. E. Salpeter, B. M. Connell ’98, and R. Fromhold-Treu ’97, “MCG +00-32-16: An Irregular Galaxy Close to the Lowest Redshift Absorber on the 3C 273 Line of Sight,” Astrophysical Journal 500, 789 (1998).
  • R. Albert, A.-L. Barabási, Nathan Carle ’99, and A. Dougherty, “Driven interfaces in disordered media: Determination of universality classes from experimental data,” Physical Review Letters, 81, 2926-2929, (1998).
  • A. Dougherty and Nathan Carle ’99, “Distribution of avalanches in interfacial motion in a porous medium, Physical Review E, 58, 2889-2993 (1998).
  • G. L. Hoffman, J. Dickey, N. Y. Lu, and R. Fromhold-Treu ’97, “A Minnesota Automated Plate Scanner Catalog of Galaxies behind the Virgo Cluster and toward its Antipode,” Astrophysical Journal 473, 822 (1996).
  • G. L. Hoffman, E. E. Salpeter, B. Farhat ’89T. Roos ’91H. L. Williams ’88, and G. Helou, “Arecibo HI Mapping of a Large Sample of Dwarf Irregular Galaxies,” Astrophysical Journal Supplements 105, 269 (1996).
  • A. Dougherty and Asela Gunawardana ’95, “The Mean Shape of Three-Dimensional Dendrites: A Comparison of Pivalic
    Acid and Ammonium Chloride,” Physical Review E, 50, 1349 (1994).
  • N. Y. Lu, G. L. Hoffman, T. Groff ’90T. Roos ’91, and C. Lamphier ’93, “HI 21cm Observations and I-band CCD Surface Photometry of Spiral Galaxies behind the Virgo Cluster and towards its Antipode,” Astrophysical Journal Supplement Series 88, 383 (1993).
  • L. Hoffman, E. E. Salpeter. B. Farhat ’89C. Lamphier’93, and T. Roos ’91, “Arecibo Mapping of Three Extended HI Galaxy Disks and Conjectures on What Lies Beyond,” Astronomical Journal106, 39 (1993).
  • A. Dougherty and Renzong Chen ’93, “Coarsening and the Mean Shape of Three-Dimensional Dendritic Crystals,” Physical Review A, 46, R4508 (1992).
  • G. L. Hoffman, E. E. Salpeter, C. Lamphier ’93, and T. Roos ’91, “A Huge HI Cloud near a Galaxy Pair,” Astrophysical Journal Letters 388, L5 (1992).
  • G. L. Hoffman, and H. L. Williams ’88, “Abell 154 and Virgo: Pilot Study for HI Observations of Distant Clusters of Galaxies,” Astronomical Journal 101, 325-341 (1991).
  • A. D. Novaco and J. P. Wroblewski ’91, ” Rotational states of H2, HD, and D2 on graphite,” Physical Review B 39, 11364-11371 (1989).
  • G. L. Hoffman, H. L. Williams ’88, E. E. Salpeter, A. Sandage, and B. Binggeli, “HI Studies of Dwarf Irregular Galaxies: Faint Galaxies in the Virgo Cluster and a Field Sample,” Astrophysical Journal Supplement Series 71, 701 (1989).
  • G. L. Hoffman, G. Helou, E. E. Salpeter, J. Glosson ’84, and A. Sandage, “HI Detection Survey of a Complete Magnitude-limited Sample of Dwarf Irregular Galaxies in the Virgo Cluster Area,” Astrophysical Journal63, 247 (1987).

Conference Papers

  • A. Dougherty, Ross Chumsky ’16 and Dustin Morris ’17, “Freezing of Methanol-Water Mixtures at High Pressure in a Subsurface Ocean,” at the topical conference on Enceladus and the Icy Moons of Saturn, July 2016.
  • A. Dougherty, Ross Chumsky ’16 and Dustin Morris ’17, “Freezing of Methanol-Water Mixtures at High Pressure with Applications to Titan,” Lunar and Planetary Science Conference, March 2016.
  • A. Dougherty and Dustin Morris ’17, “Freezing of Methanol-Water Mixtures at High Pressure with Applications to Titan,” Lunar and Planetary Science Conference, March 2015.
  • A. Dougherty, Jaclyn Avidon ’12, D. L. Hogenboom and J. S. Kargel, “Eutectic Temperatures for Low and High Pressure Phases of Sodium Sulfate Hydrates with Applications to Europa,” Lunar and Planetary Science Conference, March 2012.
  • A. Dougherty, Jaclyn Avidon ’12, D. L. Hogenboom and J. S. Kargel, “Volumetric and Optical Studies of High Pressure Phases of Sodium Sulfate Hydrates with Applications to Europa,” Lunar and Planetary Science Conference, March 2011.
  • A. Kortyna and J. Grab ’10, “Improved measurements of the cesium nd hyperfine structure using photoion spectroscopy of a thermal beam,” 40th Annual Meeting of the American Physical Society, Division of Atomic, Molecular, and Optical Physics, Charlottesville, VA; 19-22 May 2009, #Y1-18; Bulletin of the American Physical Society 54(7) (2009).
  • A. Kortyna and V. Fiore ’08, “Atomic beam measurements of the Cs 7d2D3/2 hyperfine parameters with two-photon fluorescence spectroscopy,” 40th annual meeting of the European Group on Atomic Systems, Graz, Austria; 2-5 July 2008.
  • V. Fiore ’08 and A. Kortyna, “Cesium 7d 2D3/2 hyperfine coupling constants measured using two-photon fluorescence spectroscopy of a thermal beam,” 39th Annual Meeting of the American Physical Society, Division of Atomic, Molecular, and Optical Physics, State College, PA; 27-31 May 2008, #R1-3; Bulletin of the American Physical Society 53(7), 141 (2008).
  • Derya Meral ’08 and M. J. Stark, “Three Transient X-Ray Pulsars as a Test of Binary Accretion Theory,” 211th Meeting of the American Astronomical Society, #03.04; Bulletin of the American Astronomical Society 39, 724 (2007).
  • A. Kortyna and V. Fiore ’08, “Atomic beam determination of the cesium 7d 2Dj hyperfine structure using double-resonant fluorescence spectroscopy,” 22nd International Symposium on Molecular Beams, Freiburg, Germany; 27 May — 6 June 2007.
  • G. L. Hoffman, J. Irwin, K. Spekkens, M. Haynes, R. Giovanelli, Adeel Altaf ’06Joshua Goldstein ’07, and I. Bah ’06. “Driftscan Mapping of the ALFA Beams,” NAIC EALFA memos (www.naic.edu/alfa/memos/ealfa/alfabeams.ps) 2006.
  • J. A. Ayala, A. Stilp, N. Patel, Adeel Altaf ’06Joshua Goldstein ’07, C. Forsyth, M. Gillin, B. Mahmood, J. Read, L. Vucic, B. Mullan, B. Walsh, S. Wortel, S. Stierwalt, B. R. Kent, J. L. Alonso, T. J. Balonek, R. Giovanelli, M. P. Haynes, G. L. Hoffman, R. A. Koopman, J. Marr, A. O’Donoghue, C. A. Pantoja, and J. J. Salzer, “An Undergraduate Research Project within the ALFALFA Collaboration,” Bulletin of the American Astronomical Society37(4), 179.21 (2006).
  • A. Kortyna, Nickolas Masluk ’06, and Jonathan Farrar ’07, “Atomic beam measurements of the 7d 2Dj hyperfine structures,” 37th Annual Meeting of the Division of Atomic, Molecular, and Optical Physics of the American Physical Society, Knoxville, TN; May 16-24, 2006, G1-34; Bulletin of the American Physical Society 51(3), 40 (2006).
  • A. Dougherty, D. L. Hogenboom, J. S. Kargel and Yang Feng Zheng ’06, “Volumetric and Optical Studies of High Pressure Phases of Na$_2$SO$_4$ with Applications to Europa,” Lunar and Planetary Science Conference, March 2006.
  • Michael C. Kaczmarczik ’06 and M. J. Stark, “Doppler modulation of hydrogen-like iron emission from Cygnus X-3,” 207th Meeting of the American Astronomical Society, #11.10; Bulletin of the American Astronomical Society 37, 1170 (2005).
  • Carolyn M. Heffner ’06 and M. J. Stark, “Search for timing glitches in the non-burst emission from GRO J1744-28,” 207th Meeting of the American Astronomical Society, #183.18; Bulletin of the American Astronomical Society 37, 1471 (2005).
  • A. Kortyna, Nickolas Masluk ’06, and Timothy Bragdon ’04, “Two-photon, sub-Doppler hyperfine measurements of the 6d 2Dj states of cesium,” 36th Annual Meeting of the Division of Atomic, Molecular, and Optical Physics of the American Physical Society, Lincoln, Nebraska; 17-21 May 2005, D6-8; Bulletin of the American Physical Society 50(3), 34 (2005).
  • A. Dougherty, D. L. Hogenboom, J. S. Kargel and Simon Mushi ’06, “Volumetric and Optical Studies of High Pressure Phases of MgSO$_4$ with Applications to Europa and Mars,” Lunar and Planetary Science Conference, March 2005.
  • Michael C. Kaczmarczik ’06, M. J. Stark, and Malinda Saia ’04, “Two distinct spectral states in KS 1947+300,” 205th Meeting of the American Astronomical Society, #102.08; Bulletin of the American Astronomical Society 36, 1512 (2004).
  • Carolyn M. Heffner ’06, M. J. Stark, A. Baykal, and J. H. Swank, “Orbital evolution of SAX J2103.5+4545,” 205th Meeting of the American Astronomical Society, #102.07; Bulletin of the American Astronomical Society 36, 1512 (2004).
  • Malinda Saia ’04 and M. J. Stark, “Comparing Torque and Luminosity in Transient X-ray Pulsars,” 203rd Meeting of the American Astronomical Society, #53.04; Bulletin of the American Astronomical Society 35, 1292 (2003).
  • Malinda Saia ’04 and M. J. Stark. “Doppler Shifts in the X-ray Spectrum of Cygnus X-3,” 201st Meeting of the American Astronomical Society, #54.09; Bulletin of the American Astronomical Society 34, 1200 (2001).
  • G. L. Hoffman, Bryan Connell ’98, N. Y. Lu, and E. E. Salpeter, “Dynamics of the NGC 4532 / DDO 137 System,” in Galactic Halos: A UC Santa Cruz Workshop (ASP Conference Series Vol. 136), ed. D. Zaritsky, p. 268 (1998).
  • A. Dougherty and Renzong Chen ’93, “Experimental Measurements of the Mean Shape of Three-Dimensional Dendritic Crystals,” in the Proceedings of the Computational Crystal Growers Workshop, Jean Taylor, ed. ,American Mathematical Society (1992).