Zobrazeno 1 - 10
of 223
pro vyhledávání: '"Gregory V. Brown"'
Autor:
XRISM Collaboration, Marc Audard, Hisamitsu Awaki, Ralf Ballhausen, Aya Bamba, Ehud Behar, Rozenn Boissay-Malaquin, Laura Brenneman, Gregory V. Brown, Lia Corrales, Elisa Costantini, Renata Cumbee, Maria Diaz Trigo, Chris Done, Tadayasu Dotani, Ken Ebisawa, Megan E. Eckart, Dominique Eckert, Teruaki Enoto, Satoshi Eguchi, Yuichiro Ezoe, Adam Foster, Ryuichi Fujimoto, Yutaka Fujita, Yasushi Fukazawa, Kotaro Fukushima, Akihiro Furuzawa, Luigi Gallo, Javier A. García, Liyi Gu, Matteo Guainazzi, Kouichi Hagino, Kenji Hamaguchi, Isamu Hatsukade, Katsuhiro Hayashi, Takayuki Hayashi, Natalie Hell, Edmund Hodges-Kluck, Ann Hornschemeier, Yuto Ichinohe, Manabu Ishida, Kumi Ishikawa, Yoshitaka Ishisaki, Jelle Kaastra, Timothy Kallman, Erin Kara, Satoru Katsuda, Yoshiaki Kanemaru, Richard Kelley, Caroline Kilbourne, Shunji Kitamoto, Shogo Kobayashi, Takayoshi Kohmura, Aya Kubota, Maurice Leutenegger, Michael Loewenstein, Yoshitomo Maeda, Maxim Markevitch, Hironori Matsumoto, Kyoko Matsushita, Dan McCammon, Brian McNamara, François Mernier, Eric D. Miller, Jon M. Miller, Ikuyuki Mitsuishi, Misaki Mizumoto, Tsunefumi Mizuno, Koji Mori, Koji Mukai, Hiroshi Murakami, Richard Mushotzky, Hiroshi Nakajima, Kazuhiro Nakazawa, Jan-Uwe Ness, Kumiko Nobukawa, Masayoshi Nobukawa, Hirofumi Noda, Hirokazu Odaka, Shoji Ogawa, Anna Ogorzalek, Takashi Okajima, Naomi Ota, Stephane Paltani, Robert Petre, Paul Plucinsky, Frederick S. Porter, Katja Pottschmidt, Kosuke Sato, Toshiki Sato, Makoto Sawada, Hiromi Seta, Megumi Shidatsu, Aurora Simionescu, Randall Smith, Hiromasa Suzuki, Andrew Szymkowiak, Hiromitsu Takahashi, Mai Takeo, Toru Tamagawa, Keisuke Tamura, Takaaki Tanaka, Atsushi Tanimoto, Makoto Tashiro, Yukikatsu Terada, Yuichi Terashima, Yohko Tsuboi, Masahiro Tsujimoto, Hiroshi Tsunemi, Takeshi Tsuru, Hiroyuki Uchida, Nagomi Uchida, Yuusuke Uchida, Hideki Uchiyama, Yoshihiro Ueda, Shinichiro Uno, Jacco Vink, Shin Watanabe, Brian J. Williams, Satoshi Yamada, Shinya Yamada, Hiroya Yamaguchi, Kazutaka Yamaoka, Noriko Yamasaki, Makoto Yamauchi, Shigeo Yamauchi, Tahir Yaqoob, Tomokage Yoneyama, Tessei Yoshida, Mihoko Yukita, Irina Zhuravleva, Xin Xiang, Takeo Minezaki, Margaret Buhariwalla, Dimitra Gerolymatou, Scott Hagen
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 1, p L25 (2024)
We present an analysis of the first two XRISM/Resolve spectra of the well-known Seyfert-1.5 active galactic nucleus (AGN) in NGC 4151, obtained in 2023 December. Our work focuses on the nature of the narrow Fe K _α emission line at 6.4 keV, the stro
Externí odkaz:
https://doaj.org/article/5d83f682f7f5495191f4acac34927e55
Autor:
Peter Beiersdorfer, Jaan K. Lepson, Gregory V. Brown, Natalie Hell, Elmar Träbert, Michael Hahn, Daniel W. Savin
Publikováno v:
Atoms, Vol 10, Iss 4, p 148 (2022)
A multitude of weaker Fe IX lines have been predicted in the vicinity of the strong 171 Å line that dominates the spectra of many astrophysical and laboratory sources. Some of these weaker lines have only recently been identified in the laboratory,
Externí odkaz:
https://doaj.org/article/402c0ef04f14474a898eb15d358ee857
Autor:
Elmar Träbert, Peter Beiersdorfer, Gregory V. Brown, Natalie Hell, Jaan K. Lepson, Alexander J. Fairchild, Michael Hahn, Daniel W. Savin
Publikováno v:
Atoms, Vol 10, Iss 4, p 115 (2022)
The Fe IX spectrum features two lines in the extreme ultraviolet whose ratio has been rated among the best density diagnostics in the solar spectrum. One line is an E1-allowed intercombination transition at 244.909 Å, the other an E1-forbidden M2 tr
Externí odkaz:
https://doaj.org/article/af3e8b4d6fee4dafac7c41b524f62835
Autor:
Yoshitaka Ishisaki, Richard L. Kelley, Hisamitsu Awaki, Jesus C. Balleza, Kim R. Barnstable, Thomas G. Bialas, Rozenn Boissay-Malaquin, Gregory V. Brown, Edgar R. Canavan, Renata S. Cumbee, Timothy M. Carnahan, Meng P. Chiao, Brian J. Comber, Elisa Costantini, Jan-Willem A. den Herder, Johannes Dercksen, Cor P. de Vries, Michael J. DiPirro, Megan E. Eckart, Yuichiro Ezoe, Carlo Ferrigno, Ryuichi Fujimoto, Nathalie Gorter, Steven M. Graham, Martin Grim, Leslie S. Hartz, Ryota Hayakawa, Takayuki Hayashi, Natalie Hell, Akio Hoshino, Yuto Ichinohe, Manabu Ishida, Kumi Ishikawa, Bryan L. James, Steven J. Kenyon, Caroline A. Kilbourne, Mark O. Kimball, Shunji Kitamoto, Maurice A. Leutenegger, Yoshitomo Maeda, Dan McCammon, Joseph J. Miko, Misaki Mizumoto, Takashi Okajima, Atsushi Okamoto, Stephane Paltani, Frederick S. Porter, Kosuke Sato, Toshiki Sato, Makoto Sawada, Keisuke Shinozaki, Russell Shipman, Peter J. Shirron, Gary A. Sneiderman, Yang Soong, Richard Szymkiewicz, Andrew E. Szymkowiak, Yoh Takei, Keisuke Tamura, Masahiro Tsujimoto, Yuusuke Uchida, Stephen Wasserzug, Michael C. Witthoeft, Rob Wolfs, Shinya Yamada, Susumu Yasuda
Publikováno v:
Space Telescopes and Instrumentation 2022: Ultraviolet to Gamma Ray.
Autor:
Peter Beiersdorfer, Natalie Hell, Elmar Träbert, R. L. Kelley, Caroline A. Kilbourne, Gregory V. Brown, D. Panchenko, F. S. Porter
Publikováno v:
Canadian Journal of Physics. 98:239-242
We report the measurements of the n = 3 → n = 2 L-shell X-ray transitions of neon-like Eu53+. These include all seven allowed electric dipole (E1) transitions, five electric quadrupole (E2) transitions, and one magnetic quadrupole (M2) transition.
Publikováno v:
Physical Review E. 105
We have inferred the energy distribution of trapped ions in an electron beam ion trap (EBIT) from simulations of the spatial distribution of Fe^{13+} ions and a comparison with measured visible light images of the ion cloud. We simulated the cloud of
Autor:
Thomas Lockard, Gregory V. Brown, Richard L. Kelley, F. Scott Porter, Natalie Hell, Megan E. Eckart, Caroline A. Kilbourne, Jörn Wilms, Peter Beiersdorfer, Maurice A. Leutenegger
Publikováno v:
X-Ray Spectrometry. 49:218-233
Autor:
Richard L. Kelley, Ming Feng Gu, Michael MacDonald, Megan E. Eckart, Caroline A. Kilbourne, Natalie Hell, Gregory V. Brown, Chintan Shah, Maurice A. Leutenegger, Antonia Hubbard, F. Scott Porter
We report measurements of electron-impact excitation cross sections for the strong K-shell n=2-1 transitions in S XV using the LLNL EBIT-I electron beam ion trap, two crystal spectrometers, and the EBIT Calorimeter Spectrometer. The cross sections ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbfa1801d9a2bd2550d347c20841edff
http://arxiv.org/abs/2106.06493
http://arxiv.org/abs/2106.06493
Autor:
Howard A. Scott, Klaus Widmann, Mark Foord, Mehul Patel, Gregory V. Brown, R. A. London, Duane A. Liedahl, Heather D. Whitley, M. Martin, M. J. MacDonald, J. Nilsen, Ronnie Shepherd, Robert Heeter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68d1dffcb32ca48bffe69906d29b2802
https://doi.org/10.2172/1773266
https://doi.org/10.2172/1773266
Autor:
Richard L. Kelley, Maurice A. Leutenegger, Megan E. Eckart, Renata Cumbee, Makoto Sawada, Frederick S. Porter, Natalie Hell, Shinya Yamada, Caroline A. Kilbourne, Yoshitaka Ishisaki, Tomomi Watanabe, Michaell Witthoeft, Gregory V. Brown
Publikováno v:
Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray.
The Resolve detector system is calibrated on the ground in three stages: at the focal plane assembly, at the calorimeter spectrometer insert, and at the full instrument level. We have just completed the first two stages and have measured the detailed