Meredith Clark Powell
Ph.D. Physics (Expected 2019)
University of California, Davis
B.S. Physics, Astrophysics Emphasis – Summa Cum Laude
GPA: 3.93; Minor: Music
Yale University Physics Department
Research Assistant – Advisor: Prof. C. Megan Urry
- Studied the multi-scale environments of accreting supermassive black holes in various multi-wavelength surveys
- Supervised three undergraduates for summer projects
- 3 semesters of leading discussions/study sessions for introductory physics course
- 1 semester of teaching lab session for introductory physics course
- 2 semesters of leading study sessions for upper division astrophysics course
UC Davis Physics Department
Honors Thesis – Advisor: Prof. Tony Tyson
- Measured the stacked weak lens signal of galaxy clusters in the Deep Lens Survey as a function of projected radius and redshift
Physics Learning Assistant
- Assisted in the discussion/lab section for the physics series geared towards biology majors
University of Illinois, Champaign-Urbana
- Measured the acoustic properties of the viola via phase sensitive harmonic analyses
Successful Proposals as PI
Palomar DBSP, “Completing a Census of Black Hole Masses and Accretion Rates in the Local Universe,” 3 nights, 2018B
Palomar DBSP, “A Census of Supermassive Black Hole Growth Across the Universe,” 3 nights, 2018A
Palomar DBSP, “Completing a Census of Black Hole Masses and Accretion Rates in the Local Universe,” 5 nights, 2017B
NuSTAR, “What is Causing the New, Extreme Variability in Mrk 1018?,”40 ks, 2017 ($43k)
"Clustering of Hard X-ray AGN," Are AGN Special? 2018
Invited Talk: "Black Hole Mass Estimates of Swift/BAT AGN," Palomar Science Meeting, 2018
“Clustering of Hard X-ray selected AGN” (poster), NERQUAM #28, 2018
Invited Talk: “AGN Clustering in the BAT Sample,” American Astronomical Society, 231, 2018
“Markarian 1018 returns to the shadows after 30 years as a Type 1 AGN,” Unveiling the Physics Behind Extreme AGN Variability, 2017
“Probing the Properties of AGN Clustering in the Local Universe with Swift-BAT,” The X-ray Universe, 2017
“The Role of Mergers in Quenching Star Formation” (poster), Hidden Monsters, 2016
“Studying the Role of Mergers in Black Hole - Galaxy Co-evolution via a Morphological Analysis of Redshift 1 Galaxies,” American Astronomical Society, 228, 2016
Honors and Awards
NASA CT Space Grant Graduate Research Fellowship
Leigh Page Prize, Yale University Physics Department
Saxon Patten Prize, UC Davis Physics Department
Citation for Outstanding Performance, UC Davis Physics Department
Membership to Sigma Pi Sigma (Undergraduate Physics Honor Society)
UC Davis Symphony Orchestra - Principal Violist
Observing facilities used: SOAR (4 nights), Keck (6 nights), Palomar (15 nights), Chandra, NuSTAR
Computer programming experience in Python, C/C++, R
X-ray data analysis experience using XSpec, CIAO, NuSTARDAS, and Sherpa
Optical/NIR Imaging and spectral data analysis experience with IRAF and ds9
Experience with html and SQL
Proposal Review Service
NASA ADAP Review Panel, 2018
First Author articles
M. C. Powell, B. Husemann, G. R. Tremblay, M. Krumpe, T. Urrutia, S. A. Baum, G. Busch, F. Combes, S. M. Croom, T. A. Davis, A. Eckart, C. P. O’Dea, M. Perez-Torres, J. Scharwachter, I. Smirnova-Pinchukova, and C. M. Urry. "The Close AGN Reference Survey (CARS): No Evidence of Galaxy-Scale Hot Outflows in Two Nearby AGN." 2018, A&A, in press.
M. C. Powell, N. Cappelluti, C.M. Urry, M. Koss, A. Finoguenov, C. Ricci, B. Trakhtenbrot, V. Allevato, M. Ajello, K. Oh, K. Schawinski, N. Secrest. “The Swift/BAT AGN Spectroscopic Survey -- IX. The Clustering Environments of an Unbiased Sample of Local AGN” 2018, ApJ, 858, 110.
M. C. Powell, C. M. Urry, C. Cardamone, B. D. Simmons, K. Schawinski, S. Young, M. Kawakatsu. “Morphology and the Color-Mass Diagram as Clues to Galaxy Evolution at z~1.” 2017, ApJ, 835, 22.
G. Busch, B. Husemann, I. Smirnova-Pinchukova, A. Eckart, S. A. Baum, F. Combes, S. M. Croom, T. A. Davis, N. Fazeli, C. Fischer, M. Gaspari, ,R. Klein, M. Krumpe, R. McElroy, C. P. O’Dea, M. A. Perez-Torres, M. C. Powell, A. Sanchez-Monge, J. Scharwachter, G. R. Tremblay, and T. Urrutia. "The Close AGN Reference Survey (CARS): SOFIA detects spatially-resolved [C II] emission in the luminous AGN HE0433-1028." 2018, ApJL, in press.
R. E. Bär, B. Trakhtenbrot, K. Oh, M. J. Koss, O. I. Wong, C. Ricci, K. Schawinski, A. K. Weigel, L. F. Sartori, K. Ichikawa, N. J. Secrest, D. Stern, F. Pacucci, R. Mushotzky,
M. C. Powell, F. Ricci, K. L. Smith, I. Lamperti, and C. M. Urry. "BAT AGN Spectroscopic Survey -- XIII. The nature of the most luminous obscured AGN in the low-redshift universe." 2018, submitted to MNRAS.
M. Brightman, M. Balokovic, M. Koss, D. M. Alexander, A. Annuar, H. Earnshaw, P. Gandhi, F. A.Harrison, A. E. Hornschemeier, B. Lehmer, M. C. Powell, A. Ptak, B. Rangelov, T. P. Roberts, D. Stern, D. J. Walton, A. Zezas. "A Long hard-X-ray Look at the Dual Active Galactic Nuclei of M51 with NUSTAR." 2018, ApJ, in press.
Tremblay, G. R., Combes, F., Oonk, J. B. R., Russell, H. R., McDonald, M. A., Gaspari, M., Husemann, B., Nulsen, P. E. J., McNamara, B. R., Hamer, S. L., O’Dea, C. P., Baum, S. A., Davis, T. A., Donahue, M., Voit, G. M., Edge, A. C., Blanton, E. L., Bremer, M. N., Bulbul, E., Clarke, T. E., David, L. P., Edwards, L. O. V., Eggerman, D., Fabian, A. C., Forman, W. R., Jones, C., Kerman, N., Kraft, R. P., Li, Y., Powell, M., Randall, S., Salome, P., Simionescu, A., Su, Y., Sun, M., Urry C. M., Vantyghem, A. N., Wilkes, B. J., & ZuHone, ´ J. A. “A Galaxy-Scale Fountain of Cold Molecular Gas Pumped by a Black Hole.” 2018, ApJ, in press.
M. Krumpe, B. Husemann, G. R. Tremblay, T. Urrutia, M. Powell, T. A. Davis, J. Scharwächter, J. Dexter, G. Busch, F. Combes, S. M. Croom, A. Eckart, R. E. McElroy, M. Perez-Torres, G. Leung. “The Close AGN Reference Survey (CARS): Mrk 1018 halts dimming and experiences strong short-term variability” 2017, A&A, 607, L9.
B. Husemann, G. R. Tremblay, T. Davis, G. Busch, R. McElroy, J. Neumann, T. Urrutia, M. Krumpe, J. Scharwaechter, M. Powell, M. Perez-Torrez and the CARS Team. "The Close AGN Reference Survey (CARS)." 2017, The ESO Messenger, 169, 42.
N. Blagorodnova, S. Gezari, T. Hung , S. R. Kulkarni, S. B. Cenko, D. R. Pasham, L. Yan, I. Arcavi, S. Ben-Ami, B. D. Bue, T. Cantwell, Y. Cao, A. J. Castro-Tirado, R. Fender, C. Fremling, A. Gal-Yam, A. Y. Q. Ho, A. Horesh, G. Hosseinzadeh, M. M. Kasliwal, A. K. .H. Kong, R. R. Laher, G. Leloudas, R. Lunnan, F. J. Masci, K. Mooley, J. D. Neill, P. Nugen, M. Powell, A. F. Valeev, P. M. Vreeswijk, R. Walters, P. Wozniak. “iPTF16fnl: a faint and fast tidal disruption event in an E+A galaxy.” 2017, ApJ, 844, 46.
B. Husemann, T. Urrutia, G. R. Tremblay, M. Krumpe, J. Dexter, G. Busch, F. Combes, S. M. Croom, T. A. Davis, A. Eckart, R. E. McElroy, M. Perez-Torres, M. Powell and J. Scharwächter. “The Close AGN Reference Survey (CARS): What is Causing Mrk 1018’s return to the Shadows after 30 Years?” 2016, A&A, 593, L4.
R. E. McElroy, B. Husemann, S. M. Croom, T. A. Davis, V. N. Bennert, G. Busch, F. Combes, A. Eckart, M. Perez-Torres, M. Powell, J. Scharwächter, G. R. Tremblay and T. Urrutia. “The Close AGN Reference Survey (CARS): Mrk 1018 Returns to the Shadows after 30 Years as a Seyfert 1.” 2016, A&A, 593, L8.