Zobrazeno 1 - 10
of 356
pro vyhledávání: '"Cheung, Alex"'
Autor:
Yang, Hongjing, Yee, Jennifer C., Hwang, Kyu-Ha, Qian, Qiyue, Bond, Ian A., Gould, Andrew, Hu, Zhecheng, Zhang, Jiyuan, Mao, Shude, Zhu, Wei, Albrow, Michael D., Chung, Sun-Ju, Han, Cheongho, Jung, Youn Kil, Ryu, Yoon-Hyun, Shin, In-Gu, Shvartzvald, Yossi, Cha, Sang-Mok, Kim, Dong-Jin, Kim, Hyoun-Woo, Kim, Seung-Lee, Lee, Chung-Uk, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W., Zang, Weicheng, Abe, Fumio, Barry, Richard, Bennett, David P., Bhattacharya, Aparna, Donachie, Martin, Fujii, Hirosane, Fukui, Akihiko, Hirao, Yuki, Itow, Yoshitaka, Kirikawa, Rintaro, Kondo, Iona, Koshimoto, Naoki, Li, Man Cheung Alex, Matsubara, Yutaka, Muraki, Yasushi, Miyazaki, Shota, Olmschenk, Greg, Ranc, Clément, Rattenbury, Nicholas J., Satoh, Yuki, Shoji, Hikaru, Silva, Stela Ishitani, Sumi, Takahiro, Suzuki, Daisuke, Tanaka, Yuzuru, Tristram, Paul J., Yamawaki, Tsubasa, Yonehara, Atsunori
In this work, we update and develop algorithms for KMTNet tender-love care (TLC) photometry in order to create an new, mostly automated, TLC pipeline. We then start a project to systematically apply the new TLC pipeline to the historic KMTNet microle
Externí odkaz:
http://arxiv.org/abs/2311.04876
Autor:
Chow, Alex, Li, Sung Kei, Broadhurst, Tom, Lim, Jeremy, Li, Man Cheung Alex, Nianias, James, Summers, Jake, Windhorst, Rogier
The first science image released by the JWST reveals numerous galaxies in the distant background of the galaxy cluster SMACS J0723.3-7327. Some have claimed redshifts of up to $z \simeq 20$, challenging standard cosmological models for structure form
Externí odkaz:
http://arxiv.org/abs/2310.09790
Autor:
Yang, Hongjing, Zang, Weicheng, Gould, Andrew, Yee, Jennifer C., Hwang, Kyu-Ha, Christie, Grant, Sumi, Takahiro, Zhang, Jiyuan, Mao, Shude, Albrow, Michael D., Chung, Sun-Ju, Han, Cheongho, Jung, Youn Kil, Ryu, Yoon-Hyun, Shin, In-Gu, Shvartzvald, Yossi, Cha, Sang-Mok, Kim, Dong-Jin, Kim, Hyoun-Woo, Kim, Seung-Lee, Lee, Chung-Uk, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W., Drummond, John, Maoz, Dan, McCormick, Jennie, Natusch, Tim, Penny, Matthew T., Zhu, Wei, Bond, Ian A., Abe, Fumio, Barry, Richard, Bennett, David P., Bhattacharya, Aparna, Donachie, Martin, Fujii, Hirosane, Fukui, Akihiko, Hirao, Yuki, Itow, Yoshitaka, Kirikawa, Rintaro, Kondo, Iona, Koshimoto, Naoki, Li, Man Cheung Alex, Matsubara, Yutaka, Muraki, Yasushi, Miyazaki, Shota, Olmschenk, Greg, Ranc, Clément, Rattenbury, Nicholas J., Satoh, Yuki, Shoji, Hikaru, Silva, Stela Ishitani, Suzuki, Daisuke, Tanaka, Yuzuru, Tristram, Paul J., Yamawaki, Tsubasa, Yonehara, Atsunori
Follow-up observations of high-magnification gravitational microlensing events can fully exploit their intrinsic sensitivity to detect extrasolar planets, especially those with small mass ratios. To make followup more uniform and efficient, we develo
Externí odkaz:
http://arxiv.org/abs/2205.12584
Autor:
Han, Cheongho, Gould, Andrew, Hirao, Yuki, Lee, Chung-Uk, Albrow, Michael D., Chung, Sun-Ju, Hwang, Kyu-Ha, Jung, Youn Kil, Kim, Doeon, Mao, Shude, Ryu, Yoon-Hyun, Shin, In-Gu, Shvartzvald, Yossi, Yee, Jennifer C., Zang, Weicheng, Cha, Sang-Mok, Kim, Dong-Jin, Kim, Hyoun-Woo, Kim, Seung-Lee, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W., Abe, Fumio, Barry, Richard, Bennett, David P., Bhattacharya, Aparna, Bond, Ian, Donachie, Martin, Fujii, Hirosane, Fukui, Akihiko, Itow, Yoshitaka, Kirikawa, Rintaro, Kondo, Iona, Koshimoto, Naoki, Li, Man Cheung Alex, Matsubara, Yutaka, Muraki, Yasushi, Miyazaki, Shota, Ranc, Clément, Rattenbury, Nicholas J., Satoh, Yuki, Shoji, Hikaru, Sumi, Takahiro, Suzuki, Daisuke, Tanaka, Yuzuru, Tristram, Paul J., Yamawaki, Tsubasa, Yonehara, Atsunori
We investigate the microlensing event KMT-2021-BLG-0322, for which the light curve exhibits three distinctive sets of caustic-crossing features. It is found that the overall features of the light curve are approximately described by a binary-lens (2L
Externí odkaz:
http://arxiv.org/abs/2109.02210
Autor:
Ranc, Clément, Bennett, David P., Barry, Richard K., Koshimoto, Naoki, Skowron, Jan, Hirao, Yuki, Bond, Ian A., Sumi, Takahiro, Bathe-Peters, Lars, Abe, Fumio, Bhattacharya, Aparna, Donachie, Martin, Fujii, Hirosane, Fukui, Akihiko, Silva, Stela Ishitani, Itow, Yoshitaka, Kirikawa, Rintaro, Kondo, Iona, Li, Man Cheung Alex, Matsubara, Yutaka, Muraki, Yasushi, Miyazaki, Shota, Olmschenk, Greg, Rattenbury, Nicholas J., Satoh, Yuki, Shoji, Hikaru, Suzuki, Daisuke, Tanaka, Yuzuru, Tristram, Paul J., Yamawaki, Tsubasa, Yonehara, Atsunori
Characterizing a planet detected by microlensing is hard if the planetary signal is weak or the lens-source relative trajectory is far from caustics. However, statistical analyses of planet demography must include those planets to accurately determin
Externí odkaz:
http://arxiv.org/abs/2107.03400
Autor:
Han, Cheongho, Udalski, Andrzej, Kim, Doeone, Jung, Youn Kil, Lee, Chung-Uk, Bond, Ian A., Albrow, Michael D., Chung, Sun-Ju, Gould, Andrew, Hwang, Kyu-Ha, Kim, Hyoun-Woo, Ryu, Yoon-Hyun, Shin, In-Gu, Shvartzvald, Yossi, Zang, Weicheng, Yee, Jennifer C., Cha, Sang-Mok, Kim, Dong-Jin, Kim, Seung-Lee, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W., Kim, Chun-Hwey, Kim, Woong-Tae, Mróz, Przemek, Szymański, Michał K., Skowron, Jan, Poleski, Radek, Soszyński, Igor, Pietrukowicz, Paweł, Kozłowski, Szymon, Ulaczyk, Krzysztof, Rybicki, Krzysztof A., Iwanek, Patryk, Wrona, Marcin, Gromadzki, Mariusz, Abe, Fumio, Barry, Richard, Bennett, David P., Bhattacharya, Aparna, Donachie, Martin, Fujii, Hirosane, Fukui, Akihiko, Itow, Yoshitaka, Hirao, Yuki, Kirikawa, Rintaro, Kondo, Iona, Li, Man Cheung Alex, Matsubara, Yutaka, Muraki, Yasushi, Miyazaki, Shota, Ranc, Clément, Rattenbury, Nicholas J., Satoh, Yuki, Shoji, Hikaru, Suematsu, Haruno, Sumi, Takahiro, Suzuki, Daisuke, Tanaka, Yuzuru, Tristram, Paul J., Yamakawa, Takeharu, Yamawaki, Tsubasa, Yonehara, Atsunori
We investigate the gravitational microlensing event KMT-2019-BLG-1715, of which light curve shows two short-term anomalies from a caustic-crossing binary-lensing light curve: one with a large deviation and the other with a small deviation. We identif
Externí odkaz:
http://arxiv.org/abs/2104.00293
Autor:
Zang, Weicheng, Hwang, Kyu-Ha, Udalski, Andrzej, Wang, Tianshu, Zhu, Wei, Sumi, Takahiro, Yee, Jennifer C., Gould, Andrew, Mao, Shude, Zhang, Xiangyu, Albrow, Michael D., Chung, Sun-Ju, Han, Cheongho, Jung, Youn Kil, Ryu, Yoon-Hyun, Shin, In-Gu, Shvartzvald, Yossi, Cha, Sang-Mok, Kim, Dong-Jin, Kim, Hyoun-Woo, Kim, Seung-Lee, Lee, Chung-Uk, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W., Mróz, Przemek, Skowron, Jan, Szymański, Michał K., Soszyński, Igor, Pietrukowicz, Paweł, Kozłowski, Szymon, Ulaczyk, Krzysztof, Rybicki, Krzysztof A., Iwanek, Patryk, Wrona, Marcin, Gromadzki, Mariusz, Bond, Ian A., Abe, Fumio, Barry, Richard, Bennett, David P., Bhattacharya, Aparna, Donachie, Martin, Fujii, Hirosane, Fukui, Akihiko, Hirao, Yuki, Itow, Yoshitaka, Kirikawa, Rintaro, Kondo, Iona, Koshimoto, Naoki, Li, Man Cheung Alex, Matsubara, Yutaka, Muraki, Yasushi, Miyazaki, Shota, Olmschenk, Greg, Ranc, Clément, Rattenbury, Nicholas J., Satoh, Yuki, Shoji, Hikaru, Silva, Stela Ishitani, Suzuki, Daisuke, Tanaka, Yuzuru, Tristram, Paul J., Yamawaki, Tsubasa, Yonehara, Atsunori, Beichman, Charles A., Bryden, Geoffery, Novati, Sebastiano Calchi, Carey, Sean, Gaudi, B. Scott, Henderson, Calen B., Johnson, Samson
In order to exhume the buried signatures of "missing planetary caustics" in the KMTNet data, we conducted a systematic anomaly search to the residuals from point-source point-lens fits, based on a modified version of the KMTNet EventFinder algorithm.
Externí odkaz:
http://arxiv.org/abs/2103.11880
Autor:
Zang, Weicheng, Han, Cheongho, Kondo, Iona, Yee, Jennifer C., Lee, Chung-Uk, Gould, Andrew, Mao, Shude, de Almeida, Leandro, Shvartzvald, Yossi, Zhang, Xiangyu, Albrow, Michael D., Chung, Sun-Ju, Hwang, Kyu-Ha, Jung, Youn Kil, Ryu, Yoon-Hyun, Shin, In-Gu, Cha, Sang-Mok, Kim, Dong-Jin, Kim, Hyoun-Woo, Kim, Seung-Lee, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W., Drummond, John, Tan, Thiam-Guan, Júnior, José Dias do Nascimento, Maoz, Dan, Penny, Matthew T., Zhu, Wei, Bond, Ian A., Abe, Fumio, Barry, Richard, Bennett, David P., Bhattacharya, Aparna, Donachie, Martin, Fujii, Hirosane, Fukui, Akihiko, Hirao, Yuki, Itow, Yoshitaka, Kirikawa, Rintaro, Koshimoto, Naoki, Li, Man Cheung Alex, Matsubara, Yutaka, Muraki, Yasushi, Miyazaki, Shota, Ranc, Clément, Rattenbury, Nicholas J., Satoh, Yuki, Shoji, Hikaru, Sumi, Takahiro, Suzuki, Daisuke, Tanaka, Yuzuru, Tristram, Paul J., Yamawaki, Tsubasa, Yonehara, Atsunori, Petric, Andreea, Burdullis, Todd, Fouqué, Pascal
We report the discovery of KMT-2020-BLG-0414Lb, with a planet-to-host mass ratio $q_2 = 0.9$--$1.2 \times 10^{-5} = 3$--$4~q_{\oplus}$ at $1\sigma$, which is the lowest mass-ratio microlensing planet to date. Together with two other recent discoverie
Externí odkaz:
http://arxiv.org/abs/2103.01896
Autor:
Yee, Jennifer C., Zang, Weicheng, Udalski, Andrzej, Ryu, Yoon-Hyun, Green, Jonathan, Hennerley, Steve, Marmont, Andrew, Sumi, Takahiro, Mao, Shude, Gromadzki, Mariusz, Mróz, Przemek, Skowron, Jan, Poleski, Radoslaw, Szymański, Michał K., Soszyński, Igor, Pietrukowicz, Paweł, Kozłowski, Szymon, Ulaczyk, Krzysztof, Rybicki, Krzysztof A., Iwanek, Patryk, Wrona, Marcin, Albrow, Michael D., Chung, Sun-Ju, Gould, Andrew, Han, Cheongho, Hwang, Kyu-Ha, Jung, Youn Kil, Kim, Hyoun-Woo, Shin, In-Gu, Shvartzvald, Yossi, Cha, Sang-Mok, Kim, Dong-Jin, Kim, Seung-Lee, Lee, Chung-Uk, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W., Bachelet, Etienne, Christie, Grant, Hundertmark, Markus P. G., Maoz, Dan, McCormick, Jennie, Natusch, Tim, Penny, Matthew T., Street, Rachel A., Tsapras, Yiannis, Beichman, Charles A., Bryden, Geoffery, Novati, Sebastiano Calchi, Carey, Sean, Gaudi, B. Scott, Henderson, Calen B., Johnson, Samson, Zhu, Wei, Bond, Ian A., Abe, Fumio, Barry, Richard, Bennett, David P., Bhattacharya, Aparna, Donachie, Martin, Fujii, Hirosane, Fukui, Akihiko, Hirao, Yuki, Silva, Stela Ishitani, Itow, Yoshitaka, Kirikawa, Rintaro, Kondo, Iona, Koshimoto, Naoki, Li, Man Cheung Alex, Matsubara, Yutaka, Muraki, Yasushi, Miyazaki, Shota, Olmschenk, Greg, Ranc, Clément, Rattenbury, Nicholas J., Satoh, Yuki, Shoji, Hikaru, Suzuki, Daisuke, Tanaka, Yuzuru, Tristram, Paul J., Yamawaki, Tsubasa, Yonehara, Atsunori
We report the analysis of OGLE-2019-BLG-0960, which contains the smallest mass-ratio microlensing planet found to date (q = 1.2--1.6 x 10^{-5} at 1-sigma). Although there is substantial uncertainty in the satellite parallax measured by Spitzer, the m
Externí odkaz:
http://arxiv.org/abs/2101.04696
Autor:
Zang, Weicheng, Shvartzvald, Yossi, Udalski, Andrzej, Yee, Jennifer C., Lee, Chung-Uk, Sumi, Takahiro, Zhang, Xiangyu, Yang, Hongjing, Mao, Shude, Novati, Sebastiano Calchi, Gould, Andrew, Zhu, Wei, Beichman, Charles A., Bryden, Geoffery, Carey, Sean, Gaudi, B. Scott, Henderson, Calen B., Mróz, Przemek, Skowron, Jan, Poleski, Radoslaw, Szymański, Michał K., Soszyński, Igor, Pietrukowicz, Paweł, Kozłowski, Szymon, Ulaczyk, Krzysztof, Rybicki, Krzysztof A., Iwanek, Patryk, Wrona, Marcin, Albrow, Michael D., Chung, Sun-Ju, Han, Cheongho, Hwang, Kyu-Ha, Jung, Youn Kil, Ryu, Yoon-Hyun, Shin, In-Gu, Cha, Sang-Mok, Kim, Dong-Jin, Kim, Hyoun-Woo, Kim, Seung-Lee, Lee, Dong-Joo, Lee, Yongseok, Park, Byeong-Gon, Pogge, Richard W., Bond, Ian A., Abe, Fumio, Barry, Richard, Bennett, David P., Bhattacharya, Aparna, Donachie, Martin, Fujii, Hirosane, Fukui, Akihiko, Hirao, Yuki, Itow, Yoshitaka, Kirikawa, Rintaro, Kondo, Iona, Koshimoto, Naoki, Li, Man Cheung Alex, Matsubara, Yutaka, Muraki, Yasushi, Miyazaki, Shota, Ranc, Clément, Rattenbury, Nicholas J., Satoh, Yuki, Shoji, Hikaru, Suzuki, Daisuke, Tanaka, Yuzuru, Tristram, Paul J., Yamawaki, Tsubasa, Yonehara, Atsunori, Bachelet, Etienne, Hundertmark, Markus P. G., Jaimes, R. Figuera, Maoz, Dan, Penny, Matthew T., Street, Rachel A., Tsapras, Yiannis
We report the discovery and analysis of a planet in the microlensing event OGLE-2018-BLG-0799. The planetary signal was observed by several ground-based telescopes, and the planet-host mass ratio is $q = (2.65 \pm 0.16) \times 10^{-3}$. The ground-ba
Externí odkaz:
http://arxiv.org/abs/2010.08732