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Megan C. Johnson
CSIRO Astronomy & Space Science
PO Box 76, Epping, NSW 1710 Australia Work: +61 (0)2 9372 4479 Email: megan.johnson@csiro.au



Education

· Doctor of Philosophy, Astronomy, Georgia State University, 2011 December · Master of Science, Physics, Georgia State University, 2007 December · Bachelor of Science, Statistics and Probability, Northern Illinois University, 2000 December


Professional History
OCE Postdoctoral Fellow, CSIRO, Marsfield, NSW, 2013 August ­ present NRAO Postdoctoral Fellow, NRAO, Green Bank, WV, 2011 September ­ 2013 August Predoctoral Fellow, Lowell Observatory, Flagstaff, AZ, 2008 January ­ 2011 September Teaching Assistant/Graduate Student, Georgia State University, Atlanta, GA, 2004 ­ 2011 Insurance Underwriter, Chicago Mutual Insurance Company, Chicago, IL, 2000 ­ 2004

· · · · ·


Research Interests

Dwarf Galaxies, Starburst Galaxies, Galaxy Evolution, Galaxy Radio Continuum Observations, Combining Radio single-
dish and Interferometer Data

Observing Experience

Radio Astronomy · NRAO, Robert C. Byrd Green Bank Telescope: over 635 hours of observing for mapping HI regions around starburst and quiescent dwarf galaxies; data calibration, baseline subtraction, testing and implementing different gridding functions for optimal HI imaging; approximately 35 hours of L-
band radio continuum observing with unique, self-
made observing scripts; examining various methods and software packages for combining single dish and interferometer data, 2010 ­ 2012 · NRAO, Very Large Array: B-
, C-
, and D-
array data calibration, combination and development and testing of multi-
scale clean imaging techniques for HI spectral line LITTLE THINGS survey, 2008 ­ 2012 Optical Astronomy · Kitt Peak National Observatory 4-
meter + Echelle spectrograph: Long term status for 5 semesters in 2008 ­ 2011, total of 26 nights, using Echelle as a long-
slit spectrograph to obtain integrated light Mg Ib stellar absorption spectra on a sample of four dwarf galaxies; data reductions accomplished in IRAF and analysis performed in IDL with personally written computer codes · Lowell Observatory 72" and 42" telescopes: Johnson's U, B, and V-
band photometry; H photometry; data reductions and analysis completed in IRAF 1




Scientific Talks

Colloquia: · "The Evolution of Dwarf Irregular Galaxy NGC 1569: A Kinematic Study of the Stars and Gas," Lowell Observatory, Flagstaff, AZ, 2011 July · "NGC 1569: Definitely an Irregular Dwarf," Northern Arizona University, Flagstaff, AZ, 2010 July Journal Club Talks: · "A Tidally Distorted Dwarf Galaxy Near NGC 4449 (Rich et al. 2009)," Green Bank, WV, 2012 February · "Dwarf-
dwarf Galaxy Interactions and Mergers," University of Chicago, Chicago, IL, 2011 October · "Stellar and Gas Kinematics of dIm Galaxy NGC 1569," NRAO, Green Bank, WV, 2011 September · "The Shape of Dwarf Irregular Galaxies: NGC 1569 Definitely an Irregular Dwarf," University of Hertfordshire, Hatfield, England, 2010 March · "Simulations of Young Clusters (Offner, S., Hansen, C., and Krumholz, M. 2009)," Lowell Observatory, Flagstaff, AZ, 2009 October · "Stellar and Gas Kinematics of Dwarf Irregular Galaxies," Lowell Observatory, Flagstaff, AZ, 2009 May · "The Connection Between Jets, Accretion Disks, and Black Hole Mass in Blazars (Wang, J., Luo, B., and Ho, L. 2004)," Lowell Observatory, Flagstaff, AZ, 2008 December · "Stellar and Gas Kinematics of Dwarf Irregular Galaxies," Lowell Observatory, Flagstaff, AZ, 2009 June; NRAO, Socorro, NM, 2008 October

Conferences, Workshops, and Meetings

· Star Formation in Dwarf Galaxies, Flagstaff, AZ, 2012 June, Contributed Talk · Global Properties of HI in Galaxies, Green Bank, WV, 2012 April, Contributed Talk · Dynamics of Low-
Mass Stellar Systems: From Star Clusters to Dwarf Galaxies, Santiago, Chile, · · · · · ·
2011 April, Poster A Universe of Dwarf Galaxies, Lyon, France, June 2010, Poster Unveiling the Mass: Extracting and Interpreting Galaxy Masses, Kingston, Ontario, Canada, June 2009, Poster The NASA Center for Astronomy Education Workshop: Improving the College Introductory Astronomy Survey Course for Non-
Science Majors Through Active Engagement, Seattle, WA, 2011 January Fifth NAIC/NRAO Single-
Dish Summer School, Puerto Rico, 2009 July 10th Summer Synthesis Imaging Workshop, Albuquerque, NM, 2006 June LITTLE THINGS Team Meetings: 2


Flagstaff, AZ, 2012 June; Austin, TX, 2012 January; Socorro, NM, 2011 March; Heidelberg, Germany, 2010 March; Socorro, NM, 2008 September · American Astronomical Society (AAS) Meetings: 219th Meeting, Austin, TX, 2012 January; 217th Meeting, Seattle, WA, 2011 January; 215th Meeting, Washington, D.C., 2010 January; 213th Meeting, Long Beach, CA, 2009 January

Teaching and Public Outreach Experience

Mentor for REU student Sarah Jean Wood, Summer 2012 Lowell Observatory Navajo-
Hopi Astronomy Outreach Program, 2008-
2011 Astronomy 1010 Lab Practicum: Astronomy of the Solar System, 2004-
2008 Astronomy 1020 Lab Practicum: Stellar and Galactic Astronomy, 2004-
2008 Supervised and judged Georgia Science Olympiad, Middle School Regional Tournament, 2005-
2007 · Mathematics tutor for Northern Illinois University Student Athletic Department, 1998-
2000

· · · · ·

References


Dr. Felix J. "Jay" Lockman National Radio Astronomy O PO Box 2 Green Bank, WV 24944 USA Email: jlockman@nrao.edu Phone: (304) 456-
2302

bservatory



Dr. Deidre A. Hunter Lowell Observatory 1400 W. Mars Hill Rd. Flagstaff, AZ 86001 USA Email: dah@lowell.edu Phone: (928) 233-
3225



Dr. Douglas R. Gies Regents' Professor Department of Physics and Astronomy Georgia State University PO Box 4106 Atlanta, GA 30302-
4106 USA Email: gies@chara.gsu.edu





Funding
· NRAO Postdoctoral Fellowship -
$5000 per annum, 2011 September ­ 2013 August · NRAO Student Observing Support ­ $13,500, 2010 May ­ 2011 July

Professional Organizations

· Sigma Pi Sigma Physics Honor Society, 2009-
present · American Astronomical Society ­ Full Member, Planetary Society, Golden Key International
Honor Society, National Scholars Honor Society, 2007-
present





3


Technical Skills · In-
depth knowledge of multi-
scale cleaning algorithms for imaging interferometer data · Practiced in combining single-
dish and interferometer data for both radio continuum and spectral line datasets · Proficient in IRAF, AIPS, IDL, GIPSY, KARMA, CASA, Word, Excel, PowerPoint



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Publications List
Doctorate of Philosophy in Astronomy Dissertation "The Evolution of Dwarf-
Irregular Galaxy NGC 1569: A Kinematic Study of the Stars and Gas" (2011). Johnson, Megan C., Physics and Astronomy Dissertations. Paper 50. http://digitalarchive.gsu.edu/phy_astr_diss/50

Refereed Journal Publications

8. "GBT Observations of LITTLE THINGS Dwarf Galaxies: Combining Single-
Dish and Interferometer Data", Johnson, M.C., Hunter, D. A., et al. 2012, in preparation 7. "The Stellar and Gas Kinematics of DDO 46 and DDO 168," Johnson, M.C., Hunter, D. A., Oh, S.-
H., Wood, S. J. et al. 2012, in preparation 6. "Deep Neutral Hydrogen GBT Observations around NGC 4163 and NGC 4214," Johnson, M.C. 2012, in preparation 5. "Determining the Nature of the Extended HI Structure Around LITTLE THINGS Dwarf Galaxy NGC 1569," Johnson, M.C. 2013, 145, 146 4. "The Stellar and Gas Kinematics of LITTLE THINGS Dwarf Irregular Galaxy NGC 1569," Johnson, M.C., Hunter, D. A., Oh, S.-
H., Zhang, H.-
X., Elmegreen, B., Brinks, E., Tollerud, E., and Herrmann, K. 2012, Astronomical Journal, 144, 152 3. "LITTLE THINGS," Hunter, D. A., Ficut-
Vicas, D., Ashley, T., Brinks, E., Cigan, P., Elmegreen, B. G., Heesen, V., Herrmann, K. A., Johnson, M., Oh, S.-
H., Rupen, M. P., Schruba, A., Simpson, C. E., Walter, F., Westpfahl, D. J., Young, L. M., and Zhang, H.-
X. 2012, Astronomical Journal, 144, 134 2. "Continuum Halos in Nearby Galaxies: An EVLA Survey (CHANG-
ES). II. First Results on NGC 4631," Irwin, J., Beck, R., Benjamin, R. A., Dettmar, R.-
J., English, J., Heald, G., Henriksen, R. N., Johnson, M., Krause, M., Li, J.-
T., Miskolczi, A., Mora, S. C., Murphy, E. J., Oosterloo, T., Porter, T. A., Rand, R. J., Saikia, D. J., Schmidt, P., Strong, A. W., Walterbos, R., Wang, Q. D., Wiegert, T. 2012, Astronomical Journal, 144, 44 1. "Continuum Halos in Nearby Galaxies: An EVLA Survey (CHANG-
ES). I. Introduction to the Survey," Irwin, J., Beck, R., Benjamin, R. A., Dettmar, R.-
J., English, J., Heald, G., Henriksen, R. N., Johnson, M., Krause, M., Li, J.-
T., Miskolczi, A., Mora, S. C., Murphy, E. J., Oosterloo, T., Porter, T. A., Rand, R. J., Saikia, D. J., Schmidt, P., Strong, A. W., Walterbos, R., Wang, Q. D., Wiegert, T. 2012, Astronomical Journal, 144, 43

Other Publications

7. "The Lowell Observatory Navajo-
Hopi Astronomy Outreach Program," Herrmann, K. A., Hunter, D. A., Bosh, A. S., Johnson, M., and Schindler, K. 2012, ASPC, 457, 257 1


6. "NGC 1569: Stellar and Gas Kinematics and Dark Matter Content," Johnson, M.C., Oh, S., Zhang, H., Hunter, D. A., Tollerud, E., Elmegreen, B., Brinks, E., and LITTLE THINGS Team 2012, AAS, 21914806J 5. "NGC 1569 stellar and gas kinematics," Johnson, M.C. 2012, AAS, 21910604J 4. "Merging or Interacting? Determining the Nature of the Large-
Scale Structure Around NGC 1569," Jackson, M.C., Hunter, D. A., and Lockman, F. J. 2011, A Universe of Dwarf Galaxies, editors Koleva, M., Prugniel, P., and Vauglin, I. (European Astronomical Society Publication Series), 48, 167 3. "Understanding the Structure of NGC 1569 and Dwarf Irregular Galaxies", Jackson, M.C., Hunter, D. A, Oh, S. H., and LITTLE THINGS Team 2011, AAS, 21732803J 2. "The Stellar and Gas Structure of NGC 1569", Jackson, M.C., Hunter, D. A, Oh, S. H. 2010, AAS, 21545710J 1. "The Stellar and Gas Structure of NGC 1569", Jackson, M.C., Hunter, D. A 2009, AAS, 21341906J



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