The Ni isotopic composition of Ryugu reveals a common accretion region for carbonaceous chondrites

Autor: Spitzer, Fridolin, Kleine, Thorsten, Burkhardt, Christoph, Hopp, Timo, Yokoyama, Tetsuya, Abe, Yoshinari, Aléon, Jérôme, Alexander, Conel M. O'D., Amari, Sachiko, Amelin, Yuri, Bajo, Ken-ichi, Bizzarro, Martin, Bouvier, Audrey, Carlson, Richard W., Chaussidon, Marc, Choi, Byeon-Gak, Dauphas, Nicolas, Davis, Andrew M., Di Rocco, Tommaso, Fujiya, Wataru, Fukai, Ryota, Gautam, Ikshu, Haba, Makiko K., Hibiya, Yuki, Hidaka, Hiroshi, Homma, Hisashi, Hoppe, Peter, Huss, Gary R., Ichida, Kiyohiro, Iizuka, Tsuyoshi, Ireland, Trevor R., Ishikawa, Akira, Itoh, Shoichi, Kawasaki, Noriyuki, Kita, Noriko T., Kitajima, Kouki, Komatani, Shintaro, Krot, Alexander N., Liu, Ming-Chang, Masuda, Yuki, Morita, Mayu, Moynier, Fréderic, Motomura, Kazuko, Nakai, Izumi, Nagashima, Kazuhide, Nguyen, Ann, Nittler, Larry, Onose, Morihiko, Pack, Andreas, Park, Changkun, Piani, Laurette, Qin, Liping, Russell, Sara S., Sakamoto, Naoya, Schönbächler, Maria, Tafla, Lauren, Tang, Haolan, Terada, Kentaro, Terada, Yasuko, Usui, Tomohiro, Wada, Sohei, Wadhwa, Meenakshi, Walker, Richard J., Yamashita, Katsuyuki, Yin, Qing-Zhu, Yoneda, Shigekazu, Young, Edward D., Yui, Hiroharu, Zhang, Ai-Cheng, Nakamura, Tomoki, Naraoka, Hiroshi, Noguchi, Takaaki, Okazaki, Ryuji, Sakamoto, Kanako, Yabuta, Hikaru, Abe, Masanao, Miyazaki, Akiko, Nakato, Aiko, Nishimura, Masahiro, Okada, Tatsuaki, Yada, Toru, Yogata, Kasumi, Nakazawa, Satoru, Saiki, Takanao, Tanaka, Satoshi, Terui, Fuyuto, Tsuda, Yuichi, Watanabe, Sei-ichiro, Yoshikawa, Makoto, Tachibana, Shogo, Yurimoto, Hisayoshi

Publikováno v: Science Advances 10, 39, eadp2426 (2024)

The isotopic compositions of samples returned from Cb-type asteroid Ryugu and Ivuna-type (CI) chondrites are distinct from other carbonaceous chondrites, which has led to the suggestion that Ryugu and CI chondrites formed in a different region of the

Externí odkaz: http://arxiv.org/abs/2410.04192

Components of star formation in NGC 253 : Non-negative Matrix Factorization Analysis with the ALCHEMI integrated intensity images

Autor: Kishikawa, Ryo, Harada, Nanase, Saito, Toshiki, Aalto, Susanne, Colzi, Laura, Gorski, Mark, Henkel, Christian, Mangum, Jeffrey G., Martín, Sergio, Muller, Sebastian, Nishimura, Yuri, Rivilla, Víctor M., Sakamoto, Kazushi, van der Werf, Paul, Viti, Serena

It is essential to examine the physical or chemical properties of molecular gas in starburst galaxies to reveal the underlying mechanisms characterizing starbursts. We used non-negative matrix factorization (NMF) to extract individual molecular or ph

Externí odkaz: http://arxiv.org/abs/2411.03867

Observation of chiral domain walls in an octupole-ordered antiferromagnet

Autor: Tsukamoto, Moeta, Xu, Zhewen, Higo, Tomoya, Kondou, Kouta, Sasaki, Kento, Asakura, Mihiro, Sakamoto, Shoya, Gambardella, Pietro, Miwa, Shinji, Otani, YoshiChika, Nakatsuji, Satoru, Degen, Christian L., Kobayashi, Kensuke

Spin chirality in antiferromagnets offers new opportunities for spintronics. The kagome antiferromagnet Mn3Sn is a paradigmatic material in which the antiferromagnetic order parameter can be detected and controlled by electrical means. However, direc

Externí odkaz: http://arxiv.org/abs/2410.23607

Whole-disk sampling of molecular clouds in M83

Autor: Hirota, Akihiko, Koda, Jin, Egusa, Fumi, Sawada, Tsuyoshi, Sakamoto, Kazushi, Heyer, Mark, Lee, Amanda M, Maeda, Fumiya, Boissier, Samuel, Calzetti, Daniela, Elmegreen, Bruce G., Harada, Nanase, Ho, Luis C., Kobayashi, Masato I. N., Kuno, Nario, Madore, Barry F., Martín, Sergio, Meyer, Jennifer Donovan, Muraoka, Kazuyuki, Watanabe, Yoshimasa

We present a catalog of clouds identified from the $^{12}$CO (1--0) data of M83, which was observed using Atacama Large Millimeter/submillimeter Array (ALMA) with a spatial resolution of $\sim$46 pc and a mass sensitivity of $\sim$10$^4$ $M_{\odot}$

Externí odkaz: http://arxiv.org/abs/2410.05424

Boosting Perturbed Gradient Ascent for Last-Iterate Convergence in Games

Autor: Abe, Kenshi, Sakamoto, Mitsuki, Ariu, Kaito, Iwasaki, Atsushi

This paper presents a payoff perturbation technique, introducing a strong convexity to players' payoff functions in games. This technique is specifically designed for first-order methods to achieve last-iterate convergence in games where the gradient

Externí odkaz: http://arxiv.org/abs/2410.02388