Zobrazeno 1 - 10
of 149
pro vyhledávání: '"Harada, Nanase"'
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
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
Autor:
Behrens, Erica, Mangum, Jeffrey G., Viti, Serena, Holdship, Jonathan, Huang, Ko-Yun, Bouvier, Mathilde, Butterworth, Joshua, Eibensteiner, Cosima, Harada, Nanase, Martin, Sergio, Sakamoto, Kazushi, Muller, Sebastien, Tanaka, Kunihiko, Colzi, Laura, Henkel, Christian, Meier, David S., Rivilla, Victor M., van der Werf, Paul P.
We use a neural network model and ALMA observations of HCN and HNC to constrain the physical conditions, most notably the cosmic-ray ionization rate (CRIR, zeta), in the Central Molecular Zone (CMZ) of the starburst galaxy NGC 253. Using output from
Externí odkaz:
http://arxiv.org/abs/2409.13821
Autor:
Takekawa, Shunya, Oka, Tomoharu, Tsujimoto, Shiho, Yokozuka, Hiroki, Harada, Nanase, Kaneko, Miyuki, Enokiya, Rei, Iwata, Yuhei
We report the discovery of a characteristic trend in the intensity ratios of SiO emissions across the Central Molecular Zone (CMZ) of our Galaxy. Using the Nobeyama Radio Observatory 45-m telescope, we conducted large-scale, high-sensitivity imaging
Externí odkaz:
http://arxiv.org/abs/2408.09252
Autor:
Nagashima, Yuzuki, Saito, Toshiki, Ikarashi, Soh, Takano, Shuro, Nakanishi, Kouichiro, Harada, Nanase, Nakajima, Taku, Taniguchi, Akio, Tosaki, Tomoka, Bamba, Kazuharu
Star formation rate (SFR) is a fundamental parameter for describing galaxies and inferring their evolutionary course. HII regions yield the best measure of instantaneous SFR in galaxies, although the derived SFR can have large uncertainties depending
Externí odkaz:
http://arxiv.org/abs/2407.15931
The HNC/HCN ratio is observationally known as a thermometer in Galactic interstellar molecular clouds. A recent study has alternatively suggested that the HNC/HCN ratio is affected by the ultraviolet (UV) field, not by the temperature. We aim to stud
Externí odkaz:
http://arxiv.org/abs/2405.09029
Autor:
Bao, Min, Harada, Nanase, Kohno, Kotaro, Yoshimura, Yuki, Egusa, Fumi, Nishimura, Yuri, Tanaka, Kunihiko, Nakanishi, Kouichiro, Martín, Sergio, Mangum, Jeffrey G., Sakamoto, Kazushi, Muller, Sébastien, Bouvier, Mathilde, Colzi, Laura, Emig, Kimberly L., Meier, David S., Henkel, Christian, Humire, Pedro, Huang, Ko-Yun, Rivilla, Víctor M., van der Werf, Paul, Viti, Serena
The physical properties of galactic molecular outflows are important as they could constrain outflow formation mechanisms. We study the properties of the southwest (SW) outflow streamer including gas kinematics, optical depth, dense gas fraction, and
Externí odkaz:
http://arxiv.org/abs/2404.04791
Autor:
Lin, Lihwai, Pan, Hsi-An, Ellison, Sara L., Harada, Nanase, Jimenez-Donaire, Maria J., French, K. Decker, Baker, William M., Hsieh, Bau-Ching, Koyama, Yusei, Lopez-Coba, Carlos, Michiyama, Tomonari, Rowlands, Kate, Sanchez, Sebastian F., Thorp, Mallory
We present ALMA observations of two dense gas tracers, HCN(1-0) and HCO$^{+}$(1-0), for three galaxies in the green valley and two galaxies on the star-forming main sequence with comparable molecular gas fractions as traced by the CO(1-0) emissions,
Externí odkaz:
http://arxiv.org/abs/2401.05976
Autor:
Harada, Nanase, Meier, David S., Martín, Sergio, Muller, Sebastien, Sakamoto, Kazushi, Saito, Toshiki, Gorski, Mark D., Henkel, Christian, Tanaka, Kunihiko, Mangum, Jeffrey G., Aalto, Susanne, Aladro, Rebeca, Bouvier, Mathilde, Colzi, Laura, Emig, Kimberly L., Herrero-Illana, Rubén, Huang, Ko-Yun, Kohno, Kotaro, König, Sabine, Nakanishi, Kouichiro, Nishimura, Yuri, Takano, Shuro, Rivilla, Víctor M., Viti, Serena, Watanabe, Yoshimasa, van der Werf, Paul P., Yoshimura, Yuki
Molecular lines are powerful diagnostics of the physical and chemical properties of the interstellar medium (ISM). These ISM properties, which affect future star formation, are expected to differ in starburst galaxies from those of more quiescent gal
Externí odkaz:
http://arxiv.org/abs/2401.02578
Autor:
Tanaka, Kunihiko, Mangum, Jeffrey G., Viti, Serena, Martin, Sergio, Harada, Nanase, Sakamoto, Kazushi, Muller, Sebastien, Yoshimura, Yuki, Nakanishi, Kouichiro, Illana, Ruben Herrero, Emig, Kimberly L., Muhle, S., Kaneko, Hiroyuki, Tosaki, Tomoka, Behrens, Erica, Rivilla, Victor M., Colzi, Laura, Nishimura, Yuri, Humire, P. K., Bouvier, Mathilde, Huang, Ko-Yun, Butterworth, Joshua, Meier, David S., van der Werf, Paul P.
We present a spatially-resolved excitation analysis for the central molecular zone (CMZ) of the starburst galaxy NGC 253 using the data from the ALMA Large program ALCHEMI, whereby we explore parameters distinguishing NGC 253 from the quiescent Milky
Externí odkaz:
http://arxiv.org/abs/2311.12106