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Start Over Author "Seiji Fujimoto" Journal monthly notices of the royal astronomical society
2 results on '"Seiji Fujimoto"'

1. ALMA Lensing Cluster Survey

Author

Franz E. Bauer, Kotaro Kohno, G. B. Caminha, Seiji Fujimoto, Daniel Espada, Jorge González-López, Nicolas Laporte, Johan Richard, Karina Caputi, Richard S. Ellis, Bunyo Hatsukade, Adi Zitrin, Masami Ouchi, G. B. Brammer, Francesco Valentino, Georgios E. Magdis, Minju Lee, Yiping Ao, Masamune Oguri, Eiichi Egami, Kirsten Kraiberg Knudsen, Yuki Yoshimura, Tao Wang, Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), and Astronomy

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, galaxies: high-redshift, 0103 physical sciences, Cluster (physics), Astrophysics::Solar and Stellar Astrophysics, galaxies: formation, Formation rate, 010303 astronomy & astrophysics, Astrophysics::Galaxy Astrophysics, Physics, 010308 nuclear & particles physics, Star formation, Image (category theory), gravitational lensing: strong, Astronomy and Astrophysics, Astrophysics - Astrophysics of Galaxies, Redshift, Galaxy, Supernova, Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Spectral energy distribution, Astrophysics::Earth and Planetary Astrophysics, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], galaxies: evolution, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We report the discovery of an intrinsically faint, quintuply-imaged, dusty galaxy MACS0600-z6 at a redshift $z=$6.07 viewed through the cluster MACSJ0600.1-2008 ($z$=0.46). A $\simeq4\sigma$ dust detection is seen at 1.2mm as part of the ALMA Lensing Cluster Survey (ALCS), an on-going ALMA Large program, and the redshift is secured via [C II] 158 $\mu$m emission described in a companion paper. In addition, spectroscopic follow-up with GMOS/Gemini-North shows a break in the galaxy's spectrum, consistent with the Lyman break at that redshift. We use a detailed mass model of the cluster and infer a magnification $\mu\gtrsim$30 for the most magnified image of this galaxy, which provides an unprecedented opportunity to probe the physical properties of a sub-luminous galaxy at the end of cosmic reionisation. Based on the spectral energy distribution, we infer lensing-corrected stellar and dust masses of $\rm{2.9^{+11.5}_{-2.3}\times10^9}$ and $\rm{4.8^{+4.5}_{-3.4}\times10^6}$ $\rm{M_{\odot}}$ respectively, a star formation rate of $\rm{9.7^{+22.0}_{-6.6} M_{\odot} yr^{-1}}$, an intrinsic size of $\rm{0.54^{+0.26}_{-0.14}}$ kpc, and a luminosity-weighted age of 200$\pm$100 Myr. Strikingly, the dust production rate in this relatively young galaxy appears to be larger than that observed for equivalent, lower redshift sources. We discuss if this implies that early supernovae are more efficient dust producers and the consequences for using dust mass as a probe of earlier star formation., Comment: submitted to MNRAS, revised version after including referee's comments

Published
2021
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2. The ALPINE−ALMA [C <scp>ii</scp>] Survey: on the nature of an extremely obscured serendipitous galaxy

Author

S. Bardelli, Paolo Cassata, G. C. Jones, Michele Ginolfi, Andreas L. Faisst, L. Morselli, Livia Vallini, Matthieu Béthermin, O. Le Fevre, D. Vergani, Y. Fudamoto, Miroslava Dessauges-Zavadsky, G. Rodighiero, E. Zucca, Edo Ibar, Margherita Talia, John D. Silverman, Dominik Riechers, Brian C. Lemaux, Peter Capak, Daniel Schaerer, Seiji Fujimoto, A. Enia, Médéric Boquien, Lin Yan, Andrea Cimatti, Chiara Mancini, L. Rodríguez-Muñoz, F. Loiacono, G. Zamorani, M. Romano, Nimish P. Hathi, Carlotta Gruppioni, Anton M. Koekemoer, Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Romano, M., Cassata, P., Morselli, L., Lemaux, B. C., Bethermin, M. M., Capak, P., Faisst, A., Le Fevre, O., Schaerer, D., Silverman, J., Yan, L., Bardelli, S., Boquien, M., Cimatti, A., Dessauges-Zavadsky, M., Enia, A., Fudamoto, Y., Fujimoto, S., Ginolfi, M., Gruppioni, C., Hathi, N. P., Ibar, E., Jones, G. C., Koekemoer, A. M., Loiacono, F., Mancini, C., Riechers, D. A., Rodighiero, G., Rodriguez-Munoz, L., Talia, M., Vallini, L., Vergani, D., Zamorani, G., Zucca, E., Romano M., Cassata P., Morselli L., Lemaux B.C., Bethermin M.M., Capak P., Faisst A., Le Fevre O., Schaerer D., Silverman J., Yan L., Bardelli S., Boquien M., Cimatti A., Dessauges-Zavadsky M., Enia A., Fudamoto Y., Fujimoto S., Ginolfi M., Gruppioni C., Hathi N.P., Ibar E., Jones G.C., Koekemoer A.M., Loiacono F., Mancini C., Riechers D.A., Rodighiero G., Rodriguez-Munoz L., Talia M., Vallini L., Vergani D., Zamorani G., and Zucca E.

Subjects
Stellar mass, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, MASS, 01 natural sciences, Luminosity, Settore FIS/05 - Astronomia e Astrofisica, galaxies: high-redshift, 0103 physical sciences, STAR-FORMING GALAXIES, PHOTOMETRIC REDSHIFTS, 010303 astronomy & astrophysics, Reionization, evolution [galaxies], Astrophysics::Galaxy Astrophysics, COSMOS, Physics, galaxies: evolution, SUBMILLIMETER GALAXIES, INTERSTELLAR-MEDIUM, [SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph], 010308 nuclear & particles physics, Star formation, Astronomy and Astrophysics, DUST CONTENT, Atacama Large Millimeter Array, Astrophysics - Astrophysics of Galaxies, Galaxy, Redshift, STELLAR, [SDU]Sciences of the Universe [physics], Space and Planetary Science, Astrophysics of Galaxies (astro-ph.GA), Spectral energy distribution, Astrophysics::Earth and Planetary Astrophysics, EMISSION, FAR-INFRARED SPECTROSCOPY, high-redshift [galaxies]
Abstract

We report the serendipitous discovery of a bright galaxy (Gal-A) observed as part of the ALMA Large Program to INvestigate [CII] at Early times (ALPINE). While this galaxy is detected both in line and continuum emission in ALMA Band 7, it is completely dark in UV/optical filters and only presents a marginal detection in the UltraVISTA Ks band. We discuss the nature of the observed ALMA line, i.e. whether the emission comes from [CII] at z~4.6, or from high-J CO transitions at z~2.2. In the first case we find a [CII]-to-FIR luminosity ratio of log(L_[CII]/L_FIR)=-2.5, consistent with the average value for local star-forming galaxies (SFGs); in the second case, instead, the source would lie outside of the empirical relations between L_CO and L_FIR found in the literature. At both redshifts, we derive the star-formation rate (SFR) from the ALMA continuum, and the stellar mass (M*) by using stellar population synthesis models as input for LePHARE spectral energy distribution (SED) fitting. Exploiting our results, we believe that Gal-A is a Main-Sequence (MS), dusty SFG at z=4.6 (i.e. [CII] emitter) with log(SFR/[M/yr])~1.4 and log(M*/M)~9.7. This work underlines the crucial role of the ALPINE survey in making a census of this class of objects, in order to unveil their contribution to the global star-formation rate density (SFRD) of the Universe at the end of the Reionisation epoch., Comment: 13 pages, 6 figures. Submitted to MNRAS

Published
2020
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