U
Una Hwang
Researcher at Goddard Space Flight Center
Publications - 48
Citations - 3705
Una Hwang is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Supernova remnant & Supernova. The author has an hindex of 24, co-authored 48 publications receiving 3568 citations. Previous affiliations of Una Hwang include Johns Hopkins University & Pennsylvania State University.
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Journal ArticleDOI
The X-Ray Observatory Suzaku
Kazuhisa Mitsuda,Mark W. Bautz,Hajime Inoue,Richard L. Kelley,Katsuji Koyama,Hideyo Kunieda,Kazuo Makishima,Yoshiaki Ogawara,Robert Petre,Tadayuk Takahashi,Hiroshi Tsunemi,Nicholas E. White,Naohisa Anabuki,Lorella Angelini,Keith A. Arnaud,Hisamitsu Awaki,Aya Bamba,Kevin R. Boyce,Gregory V. Brown,Kai Wing Chan,Jean Cottam,Tadayasu Dotani,John P. Doty,Ken Ebisawa,Yuichiro Ezoe,Andrew C. Fabian,Enectali Figueroa,Ryuichi Fujimoto,Yasushi Fukazawa,Tae Furusho,Akihiro Furuzawa,Keith C. Gendreau,Richard E. Griffiths,Yoshito Haba,Kenji Hamaguchi,Ilana M. Harrus,Günther Hasinger,Isamu Hatsukade,Kiyoshi Hayashida,Patrick Henry,Junko S. Hiraga,Stephen S. Holt,Ann Hornschemeier,John P. Hughes,Una Hwang,Manabu Ishida,Yoshitaka Ishisaki,Naoki Isobe,Masayuki Itoh,Naoko Iyomoto,Steven M. Kahn,Tuneyoshi Kamae,Hideaki Katagiri,Jun Kataoka,Haruyoshi Katayama,Nobuyuki Kawai,Caroline Kllbourne,Kenzo Kinugasa,Steve Klssel,Shunji Kitamoto,Mitsuhiro Kohama,Takayoshi Kohmura,Motohide Kokubun,Taro Kotani,J. Kotoku,Aya Kubota,Greg Madejski,Yoshitomo Maeda,Fumiyoshi Makino,Alex Markowitz,Chiho Matsumoto,Hironori Matsumoto,Masaru Matsuoka,Kyoko Matsushita,Dan McCammon,Tatehiko Mihara,Kazutami Misakl,Emi Miyata,Tsunefumi Mizuno,Koji Mori,Hideyuki Mori,Mikio Morii,Harvey Moseley,Koji Mukai,Hiroshi Murakami,Toshio Murakami,Richard Mushotzky,Fumiaki Nagase,M. Namiki,Hitoshi Negoro,Kazuhiro Nakazawa,John A. Nousek,Takashi Okajima,Yasushi Ogasaka,Takaya Ohashi,T. Oshima,Naomi Ota,Masanobu Ozaki,H. Ozawa,Arvind Parmar,W. D. Pence,F. Scott Porter,James Reeves,George R. Ricker,Ikuya Sakurai,Wilton T. Sanders,Atsushi Senda,Peter J. Serlemitsos,Ryo Shibata,Yang Soong,Randall K. Smith,Motoko Suzuki,Andrew Szymkowiak,Hiromitsu Takahashi,Toru Tamagawa,Keisuke Tamura,Takayuki Tamura,Yasuo Tanaka,Makoto Tashiro,Yuzuru Tawara,Yukikatsu Terada,Yuichi Terashima,Hiroshi Tomida,Ken'ichi Torii,Yohko Tsuboi,Masahiro Tsujimoto,Takeshi Go Tsuru,Martin J. L. Turner,Yoshihiro Ueda,Shiro Ueno,M. Ueno,Shin'ichiro Uno,Yuji Urata,Shin Watanabe,Norimasa Yamamoto,Kazutaka Yamaoka,Noriko Y. Yamasaki,Koujun Yamashita,Makoto Yamauchi,Shigeo Yamauchi,Tahir Yaqoob,Daisuke Yonetoku,Atsumasa Yoshida +142 more
TL;DR: In this paper, the authors summarized the spacecraft, in-orbit performance, operations, and data processing that are related to observations of the Suzaku X-ray observatory, including high-sensitivity wide-band Xray spectroscopy.
Journal ArticleDOI
Evidence for shock acceleration of high-energy electrons in the supernova remnant SN1006
Katsuji Koyama,Robert Petre,Eric V. Gotthelf,Eric V. Gotthelf,Una Hwang,M. Matsuura,M. Ozaki,Stephen S. Holt +7 more
TL;DR: In this paper, X-ray observations of the remnant of supernova 1006, made by the ASCA satellite, indicate that emission from the edges of the supernova remnant shell is dominated by radiation from electrons accelerated to energies of ~ 100 TeV within the shock front.
Proceedings ArticleDOI
The ASTRO-H mission
Tadayuki Takahashi,Kazuhisa Mitsuda,Richard L. Kelley,Felix Aharonian,Fumie Akimoto,Steve Allen,Naohisa Anabuki,Lorella Angelini,Keith A. Arnaud,Hisamitsu Awaki,Aya Bamba,Nobutaka Bando,Mark W. Bautz,Roger Blandford,Kevin R. Boyce,Greg Brown,Mara Chernyakova,Paolo De Coppi,Elisa Costantini,Jean Cottam,John Crow,Jelle de Plaa,Cor P. de Vries,Jan-Willem den Herder,Michael J. DiPirro,Chris Done,Tadayasu Dotani,Ken Ebisawa,Teruaki Enoto,Yuichiro Ezoe,Andrew C. Fabian,Ryuichi Fujimoto,Yasushi Fukazawa,Stefan Funk,Akihiro Furuzawa,Massimiliano Galeazzi,Poshak Gandhi,Keith C. Gendreau,Kirk Gilmore,Yoshito Haba,K. Hamaguchi,Isamu Hatsukade,Kiyoshi Hayashida,Junko S. Hiraga,Kazuyuki Hirose,Ann Hornschemeier,John P. Hughes,Una Hwang,Ryo Iizuka,Kazunori Ishibashi,Manabu Ishida,Kosei Ishimura,Yoshitaka Ishisaki,Naoki Isobe,Masayuki Ito,Naoko Iwata,Jelle Kaastra,Timothy R. Kallman,Tuneyoshi Kamae,Hideaki Katagiri,Jun Kataoka,Satoru Katsuda,Madoka Kawaharada,Nobuyuki Kawai,Shigeo Kawasaki,Dmitry Khangaluyan,Caroline A. Kilbourne,Kenzo Kinugasa,Shunji Kitamoto,Tetsu Kitayama,Takayoshi Kohmura,Motohide Kokubun,Tatsuro Kosaka,Taro Kotani,Katsuji Koyama,Aya Kubota,Hideyo Kunieda,Philippe Laurent,Francois Lebrun,Olivier Limousin,Michael Loewenstein,Knox S. Long,Grzegorz Madejski,Yoshitomo Maeda,Kazuo Makishima,Maxim Markevitch,Hironori Matsumoto,Kyoko Matsushita,Dan McCammon,Jon M. Miller,Shin Mineshige,Kenji Minesugi,Takuya Miyazawa,Tsunefumi Mizuno,Koji Mori,Hideyuki Mori,Koji Mukai,Hiroshi Murakami,Toshio Murakami,Richard F. Mushotzky,Yujin E. Nakagawa,Takao Nakagawa,Hiroshi Nakajima,Takeshi Nakamori,Kazuhiro Nakazawa,Yoshiharu Namba,Masaharu Nomachi,Stephen L. O'Dell,Hiroyuki Ogawa,Mina Ogawa,Keiji Ogi,Takaya Ohashi,Masanori Ohno,Masayuki Ohta,Takashi Okajima,Naomi Ota,Masanobu Ozaki,F. B. S. Paerels,Stéphane Paltani,Arvind Parmar,Robert Petre,M. Pohl,Scott Porter,Brian D. Ramsey,Christopher S. Reynolds,Shin-ichiro Sakai,Rita M. Sambruna,G. Sato,Yoichi Sato,Peter J. Serlemitsos,Maki Shida,Takanobu Shimada,Keisuke Shinozaki,Peter Shirron,Randall K. Smith,Gary A. Sneiderman,Yang Soong,Lukasz Stawarz,Hiroyuki Sugita,Andrew Szymkowiak,Hiroyasu Tajima,Hiromitsu Takahashi,Yoh Takei,T. Tamagawa,Takayuki Tamura,Keisuke Tamura,Takaaki Tanaka,Yasayuki Tanaka,Yasuo Tanaka,Makoto Tashiro,Yuzuru Tawara,Yukikatsu Terada,Yuichi Terashima,Francesco Tombesi,Hiroshi Tomida,Miyako Tozuka,Yohko Tsuboi,Masahiro Tsujimoto,Hiroshi Tsunemi,Takeshi Go Tsuru,Hiroyuki Uchida,Yasunobu Uchiyama,Hideki Uchiyama,Yoshihiro Ueda,Shin'ichiro Uno,Meg Urry,Shin Watanabe,Nicholas E. White,Takahiro Yamada,Hiroya Yamaguchi,Kazutaka Yamaoka,Noriko Y. Yamasaki,Makoto Yamauchi,Shigeo Yamauchi,Yoichi Yatsu,Daisuke Yonetoku,Atsumasa Yoshida +176 more
TL;DR: The ASTRO-H mission is the sixth in a series of highly successful X-ray missions initiated by the Institute of Space and Astronautical Science (ISAS) as discussed by the authors.
Journal ArticleDOI
ASCA Observations of the Large Magellanic Cloud Supernova Remnant Sample: Typing Supernovae from Their Remnants
John P. Hughes,Ichizo Hayashi,David J. Helfand,Una Hwang,Masayuki Itoh,Robert P. Kirshner,Katsuji Koyama,Thomas H. Markert,Hiroshi Tsunemi,Jonathan W. Woo +9 more
TL;DR: Nomoto, Thielemann, & Yokoi as mentioned in this paper showed that the major products of nucleosynthesis in Type Ia supernovae are the elements from silicon to iron.
Journal ArticleDOI
Thermal and Nonthermal Emission from the Forward Shock in Tycho's Supernova Remnant
TL;DR: In this paper, Chandra X-ray images of Tycho's supernova remnant were used to delineate its outer shock as a thin, smooth rim along the straight northeastern edge and most of the circular western half.