Zobrazeno 1 - 10
of 125
pro vyhledávání: '"Mangum, Jeffrey"'
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:
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:
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:
Gorski, M. D., Aalto, S., König, S., Wethers, C. F., Yang, C., Muller, S., Onishi, K., Sato, M., Falstad, N., Mangum, Jeffrey G., Linden, S. T., Combes, F., Martín, S., Imanishi, M., Wada, Keiichi, Barcos-Muñoz, L., Stanley, F., García-Burillo, S., van der Werf, P. P., Evans, A. S., Henkel, C., Viti, S., Harada, N., Díaz-Santos, T., Gallagher, J. S., González-Alfonso, E.
Publikováno v:
A&A 684, L11 (2024)
How galaxies regulate nuclear growth through gas accretion by supermassive black holes (SMBHs) is one of the most fundamental questions in galaxy evolution. One potential way to regulate nuclear growth is through a galactic wind that removes gas from
Externí odkaz:
http://arxiv.org/abs/2403.16759
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
Autor:
Behrens, Erica, Mangum, Jeffrey G., Holdship, Jonathan, Viti, Serena, Harada, Nanase, Martin, Sergio, Sakamoto, Kazushi, Muller, Sebastien, Tanaka, Kunihiko, Nakanishi, Kouichiro, Herrero-Illana, Ruben, Yoshimura, Yuki, Aladro, Rebeca, Colzi, Laura, Emig, Kimberly L., Henkel, Christian, Huang, Ko-Yun, Humire, P. K., Meier, David S., Rivilla, Victor M.
We analyze HCN and HNC emission in the nearby starburst galaxy NGC 253 to investigate its effectiveness in tracing heating processes associated with star formation. This study uses multiple HCN and HNC rotational transitions observed using ALMA via t
Externí odkaz:
http://arxiv.org/abs/2209.06244
Autor:
Holdship, Jonathan, Mangum, Jeffrey G., Viti, Serena, Behrens, Erica, Harada, Nanase, Martín, Sergio, Sakamoto, Kazushi, Muller, Sebastien, Tanaka, Kunihiko, Nakanishi, Kouichiro, Herrero-Illana, Rubén, Yoshimura, Yuki, Aladro, Rebeca, Colzi, Laura, Emig, Kimberly L., Henkel, Christian, Nishimura, Yuri, Rivilla, Víctor M., van der Werf, Paul P.
The cosmic ray ionization rate (CRIR) is a key parameter in understanding the physical and chemical processes in the interstellar medium. Cosmic rays are a significant source of energy in star formation regions, which impacts the physical and chemica
Externí odkaz:
http://arxiv.org/abs/2204.03668
Autor:
Harada, Nanase, Martín, Sergio, Mangum, Jeffrey G., Sakamoto, Kazushi, Muller, Sebastien, Tanaka, Kunihiko, Nakanishi, Kouichiro, Herrero-Illana, Rubén, Yoshimura, Yuki, Mühle, Stefanie, Aladro, Rebeca, Colzi, Laura, Rivilla, Víctor M., Aalto, Susanne, Behrens, Erica, Henkel, Christian, Holdship, Jonathan, Humire, P. K., Meier, David S., Nishimura, Yuri, van der Werf, Paul P., Viti, Serena
Molecular abundances are sensitive to UV-photon flux and cosmic-ray ionization rate. In starburst environments, the effects of high-energy photons and particles are expected to be stronger. We examine these astrochemical signatures through multiple t
Externí odkaz:
http://arxiv.org/abs/2109.06476
Autor:
Gorski, Mark, Aalto, Susanne, Mangum, Jeffrey, Momjian, Emmanuel, Black, John, Falstad, Niklas, Gullberg, Bitten, König, Sabine, Onishi, Kyoko, Sato, Mamiko, Stanley, Flora
Publikováno v:
A&A 654, A110 (2021)
We present the first search for the 5.29 GHz methanimine($\rm{CH}_2\rm{NH}$) $1_{10}-1_{11}$ transition toward a sample of galaxy nuclei. We target seven galaxies that host Compact Obscured Nuclei (CONs) with the Karl G. Jansky Very Large Array. Thes
Externí odkaz:
http://arxiv.org/abs/2108.06331