Smith, Randall
Senior Astrophysicist
0000-0003-4284-4167
Smith, Randall
Senior Astrophysicist
Satellite Mission Development. X-ray Astronomy: Interstellar Medium, Interstellar Dust, Galaxy Clusters; Atomic Physics: Theoretical Calculations, X-ray Spectroscopy
Positions
- Associate Director, High Energy Astrophysics 2021 -
Background And Education
Education And Training
Professional Biography
- Senior astrophysicist at the Harvard-Smithsonian Center for Astrophysics, primarily working in high-energy astrophysics. I am involved with multiple X-ray observatories, and try to maintain a broad perspective regarding science priorities in astrophysics and their impact on mission requirements and capabilities. My research focuses on processes in the interstellar medium and on maintaining an atomic database (AtomDB) that is used throughout the field to model the spectra of hot collisional plasmas.
Awards And Honors
- Smithsonian Scholarly Studies Award, conferred by Smithsonian Scholarly Studies Awards, 2018
Research And Grants
Co-principal Investigator On
Publications
Selected Publications
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Article
- Xrism Collaboration, Audard, Marc, Awaki, Hisamitsu, Ballhausen, Ralf, Bamba, Aya, Behar, Ehud, Boissay-Malaquin, Rozenn, Brenneman, Laura, Brown, Gregory V., Corrales, Lia, Costantini, Elisa, Cumbee, Renata, Diaz-Trigo, Maria, Done, Chris, Dotani, Tadayasu, Ebisawa, Ken, Eckart, Megan, Eckert, Dominique, Enoto, Teruaki, Eguchi, Satoshi, Ezoe, Yuichiro, Foster, Adam, Fujimoto, Ryuichi, Fujita, Yutaka, Fukazawa, Yasushi et al. 2025. "Overionized plasma in the supernova remnant Sagittarius A East anchored by XRISM observations." Publications of the Astronomical Society of Japan, 77 L1–L8. https://doi.org/10.1093/pasj/psae111. 2025
- Tashiro, Makoto, Kelley, Richard, Watanabe, Shin, Maejima, Hironori, Reichenthal, Lillian, Toda, Kenichi, Hartz, Leslie, Santovincenzo, Andrea, Matsushita, Kyoko, Yamaguchi, Hiroya, Petre, Robert, Williams, Brian, Guainazzi, Matteo, Costantini, Elisa, Takei, Yoh, Ishisaki, Yoshitaka, Fujimoto, Ryuichi, Henegar-Leon, Joy, Sneiderman, Gary, Tomida, Hiroshi, Mori, Koji, Nakajima, Hiroshi, Terada, Yukikatsu, Holland, Matthew, Loewenstein, Michael et al. 2025. "X-Ray Imaging and Spectroscopy Mission." Publications of the Astronomical Society of Japan, https://doi.org/10.1093/pasj/psaf023. 2025
- Waters, Thomas K., Peterson, Colton, Emami, Razieh, Shen, Xuejian, Hernquist, Lars, Smith, Randall, Vogelsberger, Mark, Alcock, Charles, Tremblay, Grant, Liska, Matthew, Forbes, John C., and Moreno, Jorge. 2024. "Gas Morphology of Milky Way–like Galaxies in the TNG50 Simulation: Signals of Twisting and Stretching." The Astrophysical Journal, 961 193. https://doi.org/10.3847/1538-4357/ad165a. 2024
- Qutob, Nadia, Emami, Razieh, Su, Kung-Yi, Smith, Randall, Hernquist, Lars, Triani, Dian P., Hummels, Cameron, Fielding, Drummond, Hopkins, Philip F., Somerville, Rachel S., Ballantyne, David R., Vogelsberger, Mark, Tremblay, Grant, Steiner, James F., Finkbeiner, Douglas, Narayan, Ramesh, Park, Minjung, Grindlay, Josh, Natarajan, Priyamvada, Hayward, Christopher C., Kereš, Dušan, Ponnada, Sam B., Belli, Sirio, Davies, Rebecca, Maheson, Gabriel et al. 2024. "Observational Signatures of AGN Feedback in the Morphology and the Ionization States of Milky Way-like Galaxies." The Astrophysical Journal, 977 72. https://doi.org/10.3847/1538-4357/ad8658. 2024
- Xrism Collaboration, Audard, Marc, Awaki, Hisamitsu, Ballhausen, Ralf, Bamba, Aya, Behar, Ehud, Boissay-Malaquin, Rozenn, Brenneman, Laura, Brown, Gregory V., Corrales, Lia, Costantini, Elisa, Cumbee, Renata, Diaz-Trigo, Maria, Done, Chris, Dotani, Tadayasu, Ebisawa, Ken, Eckart, Megan, Eckert, Dominique, Enoto, Teruaki, Eguchi, Satoshi, Ezoe, Yuichiro, Foster, Adam, Fujimoto, Ryuichi, Fujita, Yutaka, Fukazawa, Yasushi et al. 2024. "The XRISM first-light observation: Velocity structure and thermal properties of the supernova remnant N 132D." Publications of the Astronomical Society of Japan, 76 1186–1201. https://doi.org/10.1093/pasj/psae080. 2024
- Xrism Collaboration, Audard, Marc, Awaki, Hisamitsu, Ballhausen, Ralf, Bamba, Aya, Behar, Ehud, Boissay-Malaquin, Rozenn, Brenneman, Laura, Brown, Gregory V., Corrales, Lia, Costantini, Elisa, Cumbee, Renata, Díaz Trigo, María, Done, Chris, Dotani, Tadayasu, Ebisawa, Ken, Eckart, Megan E., Eckert, Dominique, Eguchi, Satoshi, Enoto, Teruaki, Ezoe, Yuichiro, Foster, Adam, Fujimoto, Ryuichi, Fujita, Yutaka, Fukazawa, Yasushi et al. 2024. "The XRISM/Resolve View of the Fe K Region of Cyg X-3." The Astrophysical Journal, 977. https://doi.org/10.3847/2041-8213/ad8ed0. 2024
- Günther, Hans M., Principe, David A., Heilmann, Ralf K., Cheimets, Peter, Hertz, Edward, and Smith, Randall. 2023. "Concept for a critical-angle transmission grating spectrometer for the AXIS probe." Journal of Astronomical Telescopes, Instruments, and Systems, 9 024007. https://doi.org/10.1117/1.JATIS.9.2.024007. 2023
- Yang, Yang, Dipti, Gall, Amy C., O'Neil, Galen, Szypryt, Paul, Hosier, Adam, Foster, Adam, Naing, Aung, Tan, Joseph N., Schultz, David R., Smith, Randall, Brickhouse, Nancy, Ralchenko, Yuri, and Takacs, Endre. 2023. "Determination of Electron Beam Energy in Measuring the Electron-Impact Ionization Cross Section of He-like Fe24 ." Atoms, 11 44. https://doi.org/10.3390/atoms11030044. 2023
- Emami, Razieh, Anantua, Richard, Ricarte, Angelo, Doeleman, Sheperd S., Broderick, Avery, Wong, George, Blackburn, Lindy, Wielgus, Maciek, Narayan, Ramesh, Tremblay, Grant, Alcock, Charles, Hernquist, Lars, Smith, Randall, Liska, Matthew, Natarajan, Priyamvada, Vogelsberger, Mark, Curd, Brandon, and Kramer, Joana A. 2023. "Probing Plasma Composition with the Next Generation Event Horizon Telescope (ngEHT)." Galaxies, 11 11. https://doi.org/10.3390/galaxies11010011. 2023
- Emami, Razieh, Doeleman, Sheperd S., Wielgus, Maciek, Chang, Dominic, Chatterjee, Koushik, Smith, Randall, Liska, Matthew, Steiner, James F., Ricarte, Angelo, Narayan, Ramesh, Tremblay, Grant, Finkbeiner, Douglas, Hernquist, Lars, Chan, Chi-kwan, Blackburn, Lindy, Prather, Ben S., Tiede, Paul, Broderick, Avery E., Vogelsberger, Mark, Alcock, Charles, and Roelofs, Freek. 2023. "The EB Correlation in Resolved Polarized Images: Connections to the Astrophysics of Black Holes." The Astrophysical Journal, 955 6. https://doi.org/10.3847/1538-4357/acdc96. 2023
- Emami, Razieh, Tiede, Paul, Doeleman, Sheperd S., Roelofs, Freek, Wielgus, Maciek, Blackburn, Lindy, Liska, Matthew, Chatterjee, Koushik, Ripperda, Bart, Fuentes, Antonio, Broderick, Avery E., Hernquist, Lars, Alcock, Charles, Narayan, Ramesh, Smith, Randall, Tremblay, Grant, Ricarte, Angelo, Sun, He, Anantua, Richard, Kovalev, Yuri Y., Natarajan, Priyamvada, and Vogelsberger, Mark. 2023. "Tracing Hot Spot Motion in Sagittarius A* Using the Next-Generation Event Horizon Telescope (ngEHT)." Galaxies, 11 23. https://doi.org/10.3390/galaxies11010023. 2023
- Emami, Razieh, Ricarte, Angelo, Wong, George N., Palumbo, Daniel, Chang, Dominic, Doeleman, Sheperd S., Broderick, Avery E., Narayan, Ramesh, Wielgus, Maciek, Blackburn, Lindy, Prather, Ben S., Chael, Andrew A., Anantua, Richard, Chatterjee, Koushik, Marti-Vidal, Ivan, Gómez, Jose L., Akiyama, Kazunori, Liska, Matthew, Hernquist, Lars, Tremblay, Grant, Vogelsberger, Mark, Alcock, Charles, Smith, Randall, Steiner, James, Tiede, Paul et al. 2023. "Unraveling Twisty Linear Polarization Morphologies in Black Hole Images." The Astrophysical Journal, 950 38. https://doi.org/10.3847/1538-4357/acc8cd. 2023
- Heilmann, Ralf K., Bruccoleri, Alexander R., Burwitz, Vadim, DeRoo, Casey, Garner, Alan, Günther, Hans Moritz, Gullikson, Eric M., Hartner, Gisela, Hertz, Edward, Langmeier, Andreas, Müller, Th, Rukdee, Surangkhana, Schmidt, Thomas, Smith, Randall K., and Schattenburg, Mark L. 2022. "X-Ray Performance of Critical-angle Transmission Grating Prototypes for the Arcus Mission." The Astrophysical Journal, 934 171. https://doi.org/10.3847/1538-4357/ac7a3a. 2022
- Okon, Hiromichi, Tanaka, Takaaki, Uchida, Hiroyuki, Tsuru, Takeshi Go, Seta, Masumichi, Kokusho, Takuma, and Smith, Randall K. 2021. "Investigation of the Physical Origin of Overionized Recombining Plasma in the Supernova Remnant IC 443 with XMM-Newton." The Astrophysical Journal, 921 99. https://doi.org/10.3847/1538-4357/ac1e2c. 2021
- Laha, Sibasish, Reynolds, Christopher S., Reeves, James, Kriss, Gerard, Guainazzi, Matteo, Smith, Randall, Veilleux, Sylvain, and Proga, Daniel. 2021. "Ionized outflows from active galactic nuclei as the essential elements of feedback." Nature Astronomy, 5 13–24. https://doi.org/10.1038/s41550-020-01255-2. 2021
- Heuer, Keri, Foster, Adam R., and Smith, Randall. 2021. "Spectral Implications of Atomic Uncertainties in Optically Thin Hot Plasmas." The Astrophysical Journal, 908 3. https://doi.org/10.3847/1538-4357/abcaff. 2021
- Saha, Preetha, Bharadwaj, Somnath, Chakravorty, Susmita, Roy, Nirupam, Choudhuri, Samir, Günther, Hans Moritz, and Smith, Randall K. 2021. "The auto- and cross-angular power spectrum of the Cas A supernova remnant in radio and X-ray." Monthly Notices of the Royal Astronomical Society, 502 5313–5324. https://doi.org/10.1093/mnras/stab446. 2021
- Seward, Frederick D., Foster, Adam R., Smith, Randall K., and Points, Sean D. 2021. "XMM Observation of the Supernova Remnant J0454-6713 and the Adjacent N9 Superbubble." The Astrophysical Journal, 909 13. https://doi.org/10.3847/1538-4357/abd561. 2021
- Okon, Hiromichi, Tanaka, Takaaki, Uchida, Hiroyuki, Yamaguchi, Hiroya, Tsuru, Takeshi Go, Seta, Masumichi, Smith, Randall K., Yoshiike, Satoshi, Orlando, Salvatore, Bocchino, Fabrizio, and Miceli, Marco. 2020. "Deep XMM-Newton Observations Reveal the Origin of Recombining Plasma in the Supernova Remnant W44." The Astrophysical Journal, 890 62. https://doi.org/10.3847/1538-4357/ab6987. 2020
- Smith, Randall, Hahn, Michael, Raymond, John, Kallman, T., Ballance, C. P., Polito, Vanessa, Del Zanna, Giulio, Gu, Liyi, Hell, Natalie, Cumbee, Renata, Betancourt-Martinez, Gabriele, Costantini, Elisa, and Corrales, Lia. 2020. "Roadmap on cosmic EUV and x-ray spectroscopy." Journal of Physics B Atomic Molecular Physics, 53 092001. https://doi.org/10.1088/1361-6455/ab69aa. 2020
- Barret, Didier, Decourchelle, Anne, Fabian, Andy, Guainazzi, Matteo, Nandra, Kirpal, Smith, Randall, and den Herder, Jan-Willem. 2020. "The Athena space X-ray observatory and the astrophysics of hot plasma." Astronomische Nachrichten, 341 224–235. https://doi.org/10.1002/asna.202023782. 2020
- Kovács, Orsolya E., Bogdán, Ákos, Smith, Randall K., Kraft, Ralph P., and Forman, William R. 2019. "Detection of the Missing Baryons toward the Sightline of H1821 643." The Astrophysical Journal, 872 83. https://doi.org/10.3847/1538-4357/aaef78. 2019
- Bulbul, Esra, Foster, Adam, Brown, Gregory V., Bautz, Mark W., Beiersdorfer, Peter, Hell, Natalie, Kilbourne, Caroline, Kraft, Ralph, Kelley, Richard, Leutenegger, Maurice A., Miller, Eric D., Porter, F. Scott, and Smith, Randall K. 2019. "Laboratory Measurements of X-Ray Emission from Highly Charged Argon Ions." The Astrophysical Journal, 870 21. https://doi.org/10.3847/1538-4357/aaee7d. 2019
- Zhang, Gao-Yuan, Slavin, Jonathan D., Foster, Adam, Smith, Randall K., ZuHone, John A., Zhou, Ping, and Chen, Yang. 2019. "Nonequilibrium Ionization in Mixed-morphology Supernova Remnants." The Astrophysical Journal, 875 81. https://doi.org/10.3847/1538-4357/ab0f9a. 2019
- Dauser, Thomas, Falkner, Sebastian, Lorenz, Maximilian, Kirsch, Christian, Peille, Philippe, Cucchetti, Edoardo, Schmid, Christian, Brand, Thorsten, Oertel, Mirjam, Smith, Randall, and Wilms, Jörn. 2019. "SIXTE: a generic X-ray instrument simulation toolkit." Astronomy and Astrophysics, 630 A66. https://doi.org/10.1051/0004-6361/201935978. 2019
- Cui, Xiaohong, Foster, Adam R., Yuasa, Takayuki, and Smith, Randall K. 2019. "X-Ray Spectra from Plasmas with High-energy Electrons: κ-distributions and e−─e− Bremsstrahlung." The Astrophysical Journal, 887 182. https://doi.org/10.3847/1538-4357/ab5304. 2019
- Hitomi Collaboration, Aharonian, Felix, Akamatsu, Hiroki, Akimoto, Fumie, Allen, Steven W., Angelini, Lorella, Audard, Marc, Awaki, Hisamitsu, Axelsson, Magnus, Bamba, Aya, Bautz, Marshall W., Blandford, Roger, Brenneman, Laura W., Brown, Gregory V., Bulbul, Esra, Cackett, Edward M., Chernyakova, Maria, Chiao, Meng P., Coppi, Paolo S., Costantini, Elisa, de Plaa, Jelle, de Vries, Cor P., den Herder, Jan-Willem, Done, Chris, Dotani, Tadayasu et al. 2018. "Detection of polarized gamma-ray emission from the Crab nebula with the Hitomi Soft Gamma-ray Detector." Publications of the Astronomical Society of Japan, 70 113. https://doi.org/10.1093/pasj/psy118. 2018
- Jin, Chichuan, Ponti, Gabriele, Haberl, Frank, Smith, Randall, and Valencic, Lynne. 2018. "Effects of interstellar dust scattering on the X-ray eclipses of the LMXB AX J1745.6-2901 in the Galactic Centre." Monthly Notices of the Royal Astronomical Society, 477 3480–3506. https://doi.org/10.1093/mnras/sty869. 2018
- Zhang, Gao-Yuan, Foster, Adam, and Smith, Randall. 2018. "Eigenvalue Method for NEI Unit in FLASH Code." The Astrophysical Journal, 864 79. https://doi.org/10.3847/1538-4357/aad692. 2018
- Yamaguchi, Hiroya, Tanaka, Takaaki, Wik, Daniel R., Rho, Jeonghee, Bamba, Aya, Castro, Daniel, Smith, Randall K., Foster, Adam R., Uchida, Hiroyuki, Petre, Robert, and Williams, Brian J. 2018. "Evidence for Rapid Adiabatic Cooling as an Origin of the Recombining Plasma in the Supernova Remnant W49B Revealed by NuSTAR Observations." The Astrophysical Journal Letters, 868 L35. https://doi.org/10.3847/2041-8213/aaf055. 2018
- Cappelluti, Nico, Bulbul, Esra, Foster, Adam, Natarajan, Priyamvada, Urry, Megan C., Bautz, Mark W., Civano, Francesca, Miller, Eric, and Smith, Randall K. 2018. "Searching for the 3.5 keV Line in the Deep Fields with Chandra: The 10 Ms Observations." The Astrophysical Journal, 854 179. https://doi.org/10.3847/1538-4357/aaaa68. 2018
- Danehkar, Ashkbiz, Nowak, Michael A., Lee, Julia C., Kriss, Gerard A., Young, Andrew J., Hardcastle, Martin J., Chakravorty, Susmita, Fang, Taotao, Neilsen, Joseph, Rahoui, Farid, and Smith, Randall K. 2018. "The Ultra-fast Outflow of the Quasar PG 1211 143 as Viewed by Time-averaged Chandra Grating Spectroscopy." The Astrophysical Journal, 853 165. https://doi.org/10.3847/1538-4357/aaa427. 2018
- Smith, Lisa F., Arcand, Kimberly Kowal, Smith, Benjamin K., Smith, Randall K., Bookbinder, Jay, and Smith, Jeffrey K. 2017. "Black holes and vacuum cleaners: Using metaphor, relevance, and inquiry in labels for space images." Psychology of Aesthetics, Creativity, and the Arts, 11, (3) 359–374. https://doi.org/10.1037/aca0000130. 2017
- Smith, Lisa, Arcand, Kimberly Kowal, Smith, Randall, Bookbinder, Jay, and Smith, Jeffrey. 2017. "Capturing the many faces of an exploded star: communicating complex and evolving astronomical data." Journal of Science Communication, 16, (05). https://doi.org/10.22323/2.16050202. 2017
- Slavin, Jonathan D., Smith, Randall K., Foster, Adam, Winter, Henry D., Raymond, John C., Slane, Patrick O., and Yamaguchi, Hiroya. 2017. "Numerical Simulations of Supernova Remnant Evolution in a Cloudy Interstellar Medium." The Astrophysical Journal, 846 77. https://doi.org/10.3847/1538-4357/aa8552. 2017
- Bulbul, Esra, Randall, Scott W., Bayliss, Matthew, Miller, Eric, Andrade-Santos, Felipe, Johnson, Ryan, Bautz, Mark, Blanton, Elizabeth L., Forman, William R., Jones, Christine, Paterno-Mahler, Rachel, Murray, Stephen S., Sarazin, Craig L., Smith, Randall K., and Ezer, Cemile. 2016. "Probing the Outskirts of the Early-Stage Galaxy Cluster Merger A1750." The Astrophysical Journal, 818 131. https://doi.org/10.3847/0004-637X/818/2/131. 2016
- Franse, Jeroen, Bulbul, Esra, Foster, Adam, Boyarsky, Alexey, Markevitch, Maxim, Bautz, Mark, Iakubovskyi, Dmytro, Loewenstein, Mike, McDonald, Michael, Miller, Eric, Randall, Scott W., Ruchayskiy, Oleg, and Smith, Randall K. 2016. "Radial Profile of the 3.5 keV Line Out to R200 in the Perseus Cluster." The Astrophysical Journal, 829 124. https://doi.org/10.3847/0004-637X/829/2/124. 2016
- Bulbul, Esra, Markevitch, Maxim, Foster, Adam, Miller, Eric, Bautz, Mark, Loewenstein, Mike, Randall, Scott W., and Smith, Randall K. 2016. "Searching for the 3.5 keV Line in the Stacked Suzaku Observations of Galaxy Clusters." The Astrophysical Journal, 831 55. https://doi.org/10.3847/0004-637X/831/1/55. 2016
- Yamaguchi, Hiroya, Katsuda, Satoru, Castro, Daniel, Williams, Brian J., Lopez, Laura A., Slane, Patrick O., Smith, Randall K., and Petre, Robert. 2016. "The Refined Shock Velocity of the X-Ray Filaments in the RCW 86 Northeast Rim." The Astrophysical Journal Letters, 820 L3. https://doi.org/10.3847/2041-8205/820/1/L3. 2016
- Hitomi Collaboration, Aharonian, Felix, Akamatsu, Hiroki, Akimoto, Fumie, Allen, Steven W., Anabuki, Naohisa, Angelini, Lorella, Arnaud, Keith, Audard, Marc, Awaki, Hisamitsu, Axelsson, Magnus, Bamba, Aya, Bautz, Marshall, Blandford, Roger, Brenneman, Laura, Brown, Gregory V., Bulbul, Esra, Cackett, Edward, Chernyakova, Maria, Chiao, Meng, Coppi, Paolo, Costantini, Elisa, de Plaa, Jelle, den Herder, Jan-Willem, Done, Chris et al. 2016. "The quiescent intracluster medium in the core of the Perseus cluster." Nature, 535 117–121. https://doi.org/10.1038/nature18627. 2016
- The quiescent intracluster medium in the core of the Perseus cluster. Nature. 535:117-121. 2016
- Smith, Lisa F., Arcand, Kimberly K., Smith, Jeffrey K., Smith, Randall K., and Bookbinder, Jay. 2015. "Is That Real? Understanding Astronomical Images." Journal of Media and Communication Studies, 7, (5) 88–100. https://doi.org/10.5897/JMCS2015.0446. 2015
- Auchettl, Katie, Slane, Patrick, Castro, Daniel, Foster, Adam R., and Smith, Randall K. 2015. "Multi-wavelength Analysis of the Galactic Supernova Remnant MSH 11-61A." The Astrophysical Journal, 810 43. https://doi.org/10.1088/0004-637X/810/1/43. 2015
- Marlowe, Hannah, McEntaffer, Randall L., Allured, Ryan, DeRoo, Casey T., Donovan, Benjamin D., Miles, Drew M., Tutt, James H., Burwitz, Vadim, Menz, Benedikt, Hartner, Gisela D., Smith, Randall K., Cheimets, Peter, Hertz, Edward, Bookbinder, Jay A., Günther, Ramses, Yanson, Alex, Vacanti, Giuseppe, and Ackermann, Marcelo. 2015. "Performance testing of an off-plane reflection grating and silicon pore optic spectrograph at PANTER." Journal of Astronomical Telescopes, Instruments, and Systems, 1 045004. https://doi.org/10.1117/1.JATIS.1.4.045004. 2015
- Bulbul, Esra, Markevitch, Maxim, Foster, Adam, Smith, Randall K., Loewenstein, Michael, and Randall, Scott W. 2014. "Detection of an Unidentified Emission Line in the Stacked X-Ray Spectrum of Galaxy Clusters." The Astrophysical Journal, 789 13. https://doi.org/10.1088/0004-637X/789/1/13. 2014
- Yamaguchi, Hiroya, Badenes, Carles, Petre, Robert, Nakano, Toshio, Castro, Daniel, Enoto, Teruaki, Hiraga, Junko S., Hughes, John P., Maeda, Yoshitomo, Nobukawa, Masayoshi, Safi-Harb, Samar, Slane, Patrick O., Smith, Randall K., and Uchida, Hiroyuki. 2014. "Discriminating the Progenitor Type of Supernova Remnants with Iron K-shell Emission." The Astrophysical Journal Letters, 785 L27. https://doi.org/10.1088/2041-8205/785/2/L27. 2014
- Yadav, Naveen, Ray, Alak, Chakraborti, Sayan, Stockdale, Christopher, Chandra, Poonam, Smith, Randall, Roy, Rupak, Bose, Subhash, Dwarkadas, Vikram, Sutaria, Firoza, and Pooley, David. 2014. "Electron Cooling in a Young Radio Supernova: SN 2012aw." The Astrophysical Journal, 782 30. https://doi.org/10.1088/0004-637X/782/1/30. 2014
- Smith, Lisa, Arcand, Kimberly Kowal, Smith, Jeffrey, Smith, Randall, Bookbinder, Jay, and Watzke, Megan. 2014. "Examining perceptions of astronomy images across mobile platforms." Journal of Science Communication, 13, (02). https://doi.org/10.22323/2.13020201. 2014
- Yamaguchi, Hiroya, Eriksen, Kristoffer A., Badenes, Carles, Hughes, John P., Brickhouse, Nancy S., Foster, Adam R., Patnaude, Daniel J., Petre, Robert, Slane, Patrick O., and Smith, Randall K. 2014. "New Evidence for Efficient Collisionless Heating of Electrons at the Reverse Shock of a Young Supernova Remnant." The Astrophysical Journal, 780 136. https://doi.org/10.1088/0004-637X/780/2/136. 2014
- Smith, Randall K., Foster, Adam R., Edgar, Richard J., and Brickhouse, Nancy S. 2014. "Resolving the Origin of the Diffuse Soft X-Ray Background." The Astrophysical Journal, 787 77. https://doi.org/10.1088/0004-637X/787/1/77. 2014
- Zhang, Shuinai, Wang, Q. Daniel, Ji, Li, Smith, Randall K., Foster, Adam R., and Zhou, Xin. 2014. "Spectral Modeling of the Charge-exchange X-Ray Emission from M82." The Astrophysical Journal, 794 61. https://doi.org/10.1088/0004-637X/794/1/61. 2014
- Seward, F. D. and Smith, Randall K. 2013. "Azimuthal Structure of the Cyg X-2 X-Ray Dust Halo." The Astrophysical Journal, 769 17. https://doi.org/10.1088/0004-637X/769/1/17. 2013
- McCollough, Michael L., Smith, Randall K., and Valencic, L. A. 2013. "Cygnus X-3's Little Friend." The Astrophysical Journal, 762 2. https://doi.org/10.1088/0004-637X/762/1/2. 2013
- Valencic, Lynne A. and Smith, Randall K. 2013. "Interstellar Abundances toward X Per, Revisited." The Astrophysical Journal, 770 22. https://doi.org/10.1088/0004-637X/770/1/22. 2013
- Chakraborti, Sayan, Ray, Alak, Smith, Randall, Ryder, Stuart, Yadav, Naveen, Sutaria, Firoza, Dwarkadas, Vikram V., Chandra, Poonam, Pooley, David, and Roy, Rupak. 2013. "The Progenitor of SN 2011ja: Clues from Circumstellar Interaction." The Astrophysical Journal, 774 30. https://doi.org/10.1088/0004-637X/774/1/30. 2013
- Lopez, Laura A., Pearson, Sarah, Ramirez-Ruiz, Enrico, Castro, Daniel, Yamaguchi, Hiroya, Slane, Patrick O., and Smith, Randall K. 2013. "Unraveling the Origin of Overionized Plasma in the Galactic Supernova Remnant W49B." The Astrophysical Journal, 777 145. https://doi.org/10.1088/0004-637X/777/2/145. 2013
- Bautz, Marshall W., Cash, Webster C., Davis, John E., Heilmann, Ralf K., Huenemoerder, David P., Schattenburg, Mark L., McEntaffer, Randall, Smith, Randall, Wolk, Scott J., Zhang, William W., Jordan, Steven P., and Lillie, Charles F. 2012. "Concepts for high-performance soft X-ray grating spectroscopy in a moderate-scale mission." Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8443 15. https://doi.org/10.1117/12.926810. 2012
- Plucinsky, Paul P., Beardmore, Andrew P., DePasquale, Joseph M., Dewey, Daniel, Foster, Adam, Haberl, Frank, Miller, Eric D., Pollock, A. M. T., Posson-Brown, Jennifer L. L., Sembay, Steve, and Smith, Randall K. 2012. "Cross-calibration of the x-ray instruments onboard the Chandra, Suzaku, Swift, and XMM- Newton Observatories using the SNR 1E 0102.2-7219." Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8443 12. https://doi.org/10.1117/12.926506. 2012
- de Plaa, J., Zhuravleva, I., Werner, N., Kaastra, J. S., Churazov, E., Smith, Randall K., Raassen, A. J. J., and Grange, Y. G. 2012. "Estimating turbulent velocities in the elliptical galaxies NGC 5044 and NGC 5813." Astronomy and Astrophysics, 539 34. https://doi.org/10.1051/0004-6361/201118404. 2012
- Bulbul, G. Esra, Smith, Randall K., Foster, Adam, Cottam, Jean, Loewenstein, Michael, Mushotzky, Richard, and Shafer, Richard. 2012. "High-resolution XMM-Newton Spectroscopy of the Cooling Flow Cluster A3112." The Astrophysical Journal, 747 32. https://doi.org/10.1088/0004-637X/747/1/32. 2012
- Davis, John E., Bautz, Marshall W., Dewey, Daniel, Heilmann, Ralf K., Houck, John C., Huenemoerder, David P., Marshall, Herman L., Nowak, Michael A., Schattenburg, Mark L., Schulz, Norbert S., and Smith, Randall K. 2012. "Raytracing with MARX: x-ray observatory design, calibration, and support." Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8443. https://doi.org/10.1117/12.926937. 2012
- Smith, Randall K., Bookbinder, Jay, Garcia, Michael, Hornschemeier, Ann, Petre, Robert, and Ptak, Andrew. 2012. "Science metrics for a NASA large optic x-ray microcalorimeter mission." Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8443. https://doi.org/10.1117/12.926534. 2012
- Takahashi, Tadayuki, Mitsuda, Kazuhisa, Kelley, Richard, Aarts, Henri, Aharonian, Felix, Akamatsu, Hiroki, Akimoto, Fumie, Allen, Steve, Anabuki, Naohisa, Angelini, Lorella, Arnaud, Keith, Asai, Makoto, Audard, Marc, Awaki, Hisamitsu, Azzarello, Philipp, Baluta, Chris, Bamba, Aya, Bando, Nobutaka, Bautz, Mark, Blandford, Roger, Boyce, Kevin, Brown, Greg, Cackett, Ed, Chernyakova, Mara, Coppi, Paolo et al. 2012. "The ASTRO-H X-ray Observatory." Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8443. https://doi.org/10.1117/12.926190. 2012
- Bookbinder, Jay A., Smith, Randall K., Bandler, Simon, Garcia, Michael, Hornschemeier, Ann, Petre, Robert, and Ptak, Andrew. 2012. "The Advanced X-ray Spectroscopic Imaging Observatory (AXSIO)." Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, 8443 17. https://doi.org/10.1117/12.927309. 2012
- Foster, A. R., Ji, L., Smith, Randall K., and Brickhouse, Nancy S. 2012. "Updated Atomic Data and Calculations for X-Ray Spectroscopy." The Astrophysical Journal, 756 128. https://doi.org/10.1088/0004-637X/756/2/128. 2012
- Chakraborti, Sayan, Yadav, Naveen, Ray, Alak, Smith, Randall, Chandra, Poonam, and Pooley, David. 2012. "X-Ray Emission from SN 2004dj: A Tale of Two Shocks." The Astrophysical Journal, 761 100. https://doi.org/10.1088/0004-637X/761/2/100. 2012
- Sanders, J. S., Fabian, A. C., and Smith, Randall K. 2011. "Constraints on turbulent velocity broadening for a sample of clusters, groups and elliptical galaxies using XMM-Newton." Monthly Notices of the Royal Astronomical Society, 410 1797–1812. https://doi.org/10.1111/j.1365-2966.2010.17561.x. 2011
- Koutroumpa, Dimitra, Smith, Randall K., Edgar, Richard J., Kuntz, Kip D., Plucinsky, Paul P., and Snowden, Steven L. 2011. "XMM-Newton Observations of MBM 12: More Constraints on the Solar Wind Charge Exchange and Local Bubble Emissions." The Astrophysical Journal, 726 91. https://doi.org/10.1088/0004-637X/726/2/91. 2011
- Smith, Randall K., Chen, Guo-Xin, Kirby, Kate, and Brickhouse, Nancy S. 2009. "A New Calculation of Ne IX Line Diagnostics." The Astrophysical Journal, 700 679–683. 2009
- Tüllmann, Ralph, Long, Knox S., Pannuti, Thomas G., Winkler, P. F., Plucinsky, Paul P., Gaetz, Terrance J., Williams, Ben, Kuntz, Kip D., Pietsch, Wolfgang, Blair, William P., Haberl, Frank, and Smith, Randall K. 2009. "Chandra ACIS Survey of M33 (ChASeM33): The Enigmatic X-Ray Emission from IC131." The Astrophysical Journal, 707 1361–1371. 2009
- Smith, Randall K., Chen, Guo-Xin, Kirby, Kate, and Brickhouse, Nancy S. 2009. "Erratum: "A New Calculation of Ne IX Line Diagnostics" (2009, ApJ, 700, 679)." The Astrophysical Journal, 701 2034. https://doi.org/10.1088/0004-637X/701/2/2034. 2009
- Valencic, Lynne A., Smith, Randall K., Dwek, Eli, Graessle, Dale, and Dame, T. M. 2009. "Examining Dust Grain Models Using the Reddening and X-Ray Dust Halo of Terzan 2." The Astrophysical Journal, 692 502–510. https://doi.org/10.1088/0004-637X/692/1/502. 2009
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Conference Paper
- Ray, Alak, Chakraborti, Sayan, Yadav, Naveen, Smith, Randall, Chandra, Poonam, Pooley, David, and McCray, Richard A. 2014. "A tale of two shocks in SN 2004dj." from IAU Symposium. 296, 108–111. https://doi.org/10.1017/S1743921313009319. 2014
- Yadav, Naveen, Ray, Alak, Chakraborti, Sayan, Stockdale, Christopher, Chandra, Poonam, Smith, Randall, Roy, Rupak, Dwarkadas, Vikram, Sutaria, Firoza, Pooley, Dave, Kumar, Brijesh, Bose, Subhash, and McCray, Richard A. 2014. "Radio Observations Of A Nearby Type IIP SN 2012aw." from IAU Symposium. 296, 112–115. https://doi.org/10.1017/S1743921313009320. 2014
- Chakraborti, Sayan, Ray, Alak, Smith, Randall, Ryder, Stuart, Yadav, Naveen, Sutaria, Firoza, Dwarkadas, Vikram V., Chandra, Poonam, Pooley, David, Roy, Rupak, and McCray, Richard A. 2014. "The strange case of SN 2011ja and its host." from IAU Symposium. 296, 342–343. https://doi.org/10.1017/S1743921313009733. 2014
- Ptak, Andrew, Bandler, Simon R., Bookbinder, Jay, Kelley, Richard L., Petre, Robert, Smith, Randall K., and Smith, Stephen. 2013. "Designing the x-ray microcalorimeter spectrometer for optimal science return." from Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series. 8859, 03. https://doi.org/10.1117/12.2024423. 2013
- Bookbinder, Jay, Petre, Robert, Ptak, Andrew, and Smith, Randall K. 2013. "The AXSIO mission and its technologies." from Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series. 8859, 02. https://doi.org/10.1117/12.2024583. 2013
Contact
Location
- Smithsonian Astrophysical Observatory Academic Department
