SILVERRUSH. III. Deep Optical and Near-Infrared Spectroscopy for Lya and UV-Nebular Lines of Bright Lya Emitters at z=6-7
Takatoshi Shibuya,Masami Ouchi,Yuichi Harikane,Michael Rauch,Yoshiaki Ono,Shiro Mukae,Ryo Higuchi,Takashi Kojima,Suraphong Yuma,Chien-Hsiu Lee,Hisanori Furusawa,Akira Konno,Crystal L. Martin,Kazuhiro Shimasaku,Yoshiaki Taniguchi,Masakazu A. R. Kobayashi,Masaru Kajisawa,Tohru Nagao,Tomotsugu Goto,Nobunari Kashikawa,Yutaka Komiyama,Haruka Kusakabe,Rieko Momose,Kimihiko Nakajima,Masayuki Tanaka,Shiang-Yu Wang +25 more
Reads0
Chats0
TLDR
In this article, Li et al. presented Lya and UV-nebular emission line properties of bright Lya emitters (LAEs) at z=6-7 with a luminosity of log L_Lya/[erg s-1] = 43-44 identified in the 21-deg2 area of the SILVERRUSH early sample developed with the Subaru Hyper Suprime-Cam (HSC) survey data.Abstract:
We present Lya and UV-nebular emission line properties of bright Lya emitters (LAEs) at z=6-7 with a luminosity of log L_Lya/[erg s-1] = 43-44 identified in the 21-deg2 area of the SILVERRUSH early sample developed with the Subaru Hyper Suprime-Cam (HSC) survey data. Our optical spectroscopy newly confirm 21 bright LAEs with clear Lya emission, and contribute to make a spectroscopic sample of 96 LAEs at z=6-7 in SILVERRUSH. From the spectroscopic sample, we select 7 remarkable LAEs as bright as Himiko and CR7 objects, and perform deep Keck/MOSFIRE and Subaru/nuMOIRCS near-infrared spectroscopy reaching the 3sigma-flux limit of ~ 2x10^{-18} erg s-1 for the UV-nebular emission lines of He II1640, C IV1548,1550, and O III]1661,1666. Except for one tentative detection of C IV, we find no strong UV-nebular lines down to the flux limit, placing the upper limits of the rest-frame equivalent widths (EW_0) of ~2-4 A for He II, C IV, and O III] lines. Here we also investigate the VLT/X-SHOOTER spectrum of CR7 whose 6 sigma detection of He II is claimed by Sobral et al. Although two individuals and the ESO-archive service carefully re-analyze the X-SHOOTER data that are used in the study of Sobral et al., no He II signal of CR7 is detected, supportive of weak UV-nebular lines of the bright LAEs even for CR7. Spectral properties of these bright LAEs are thus clearly different from those of faint dropouts at z~7 that have strong UV-nebular lines shown in the various studies. Comparing these bright LAEs and the faint dropouts, we find anti-correlations between the UV-nebular line EW_0 and UV-continuum luminosity, which are similar to those found at z~2-3.read more
Citations
More filters
Journal ArticleDOI
Science with the Murchison Widefield Array: Phase I results and Phase II opportunities
Adam P. Beardsley,Melanie Johnston-Hollitt,Cathryn M. Trott,Jonathan C. Pober,John Morgan,Divya Oberoi,D. L. Kaplan,Christene Lynch,G. E. Anderson,Patrick I. McCauley,Steve Croft,C. W. James,O. I. Wong,Chenoa D. Tremblay,Ray P. Norris,Ray P. Norris,Iver H. Cairns,Colin J. Lonsdale,Paul Hancock,Bryan Gaensler,N. D. R. Bhat,W. Li,Natasha Hurley-Walker,Joseph R. Callingham,Nick Seymour,Shintaro Yoshiura,R. C. Joseph,Keitaro Takahashi,Marcin Sokolowski,James Miller-Jones,Jai Verdhan Chauhan,Ivan S. Bojičić,Miroslav Filipovic,Denis Leahy,H. Su,W. W. Tian,S. J. McSweeney,B. W. Meyers,S. Kitaeff,S. Kitaeff,Tessa Vernstrom,G. Gürkan,George Heald,Mengyao Xue,C. J. Riseley,C. J. Riseley,S. W. Duchesne,Judd D. Bowman,Daniel C. Jacobs,Brian Crosse,David Emrich,Thomas M. O. Franzen,Thomas M. O. Franzen,L. Horsley,D. Kenney,Miguel F. Morales,D. Pallot,K. Steele,Steven Tingay,Mark Walker,Randall B. Wayth,Andrew Williams,Chen Wu +62 more
TL;DR: The Murchison Widefield Array (MWA) as discussed by the authors is an open access telescope dedicated to studying the low-frequency (80-300 MHz) southern sky since beginning operations in mid-2013, the MWA has opened a new observational window in the southern hemisphere enabling many science areas.
Journal ArticleDOI
CHORUS. II. Subaru/HSC Determination of the Lyα Luminosity Function at z = 7.0: Constraints on Cosmic Reionization Model Parameter
Ryohei Itoh,Masami Ouchi,Haibin Zhang,Akio K. Inoue,Ken Mawatari,Takatoshi Shibuya,Yuichi Harikane,Yoshiaki Ono,Haruka Kusakabe,Kazuhiro Shimasaku,Seiji Fujimoto,Ikuru Iwata,Ikuru Iwata,Masaru Kajisawa,Nobunari Kashikawa,Satoshi Kawanomoto,Yutaka Komiyama,Yutaka Komiyama,Chien-Hsiu Lee,Tohru Nagao,Yoshiaki Taniguchi +20 more
TL;DR: In this paper, the authors presented the Ly$\\alpha$ luminosity function (LF) derived from 34 Ly$-alpha$ emitters (LAEs) at $z=7.0$ on the sky of $3.1$ deg$^2, the largest sample compared to those in the literature obtained at a redshift of 6.5$.
Journal ArticleDOI
SILVERRUSH. VII. Subaru/HSC Identifications of Protocluster Candidates at z ˜ 6-7: Implications for Cosmic Reionization
Ryo Higuchi,Masami Ouchi,Masami Ouchi,Yoshiaki Ono,Takatoshi Shibuya,Jun Toshikawa,Yuichi Harikane,Takashi Kojima,Yi-Kuan Chiang,Eiichi Egami,Nobunari Kashikawa,Roderik Overzier,Akira Konno,Akio K. Inoue,Kenji Hasegawa,Seiji Fujimoto,Tomotsugu Goto,Shogo Ishikawa,Kei Ito,Yutaka Komiyama,Masayuki Tanaka +20 more
TL;DR: The first program from the Japanese Cabinet Office, Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan Society for the Promotion of Science (JSPS), Japan Science and technology Agency (JST), Toray Science Foundation; NAOJ; Kavli IPMU; KEK; ASIAA; Princeton University; National Aeronautics and Space Administration [NNX08AR22G]; National Science Foundation [AST-1238877]; Ehime University; KAKENHI through the Japan Society For the Promotion OF Science [23244025
Journal ArticleDOI
The Recent Burstiness of Star Formation in Galaxies at z ∼ 4.5 from Hα Measurements
TL;DR: In this paper, the burstiness of the recent star formation history (SFH) of 221z ~ 4.5 main-sequence galaxies at log(M/M⊙) > 9.7 was investigated by comparing their ultra-violet (UV) continuum, Hα luminosity, and Hα equivalent width (EW).
Journal ArticleDOI
The evolution of rest-frame UV properties, Ly α EWs, and the SFR–stellar mass relation at z ∼ 2–6 for SC4K LAEs
Sergio Da Graça Santos,David Sobral,Jorryt Matthee,João Calhau,Elisabete da Cunha,Elisabete da Cunha,B. Ribeiro,Ana Paulino-Afonso,Pablo Arrabal Haro,Pablo Arrabal Haro,Josh Butterworth +10 more
TL;DR: In this paper, the authors explore deep rest-frame UV to FIR data in the COSMOS field to measure the individual spectral energy distributions (SED) of the ~4000 SC4K Lyman-alpha (Lya) emitters (LAEs) at z~2-6.
References
More filters
Journal ArticleDOI
Planck 2015 results - XIII. Cosmological parameters
Peter A. R. Ade,Nabila Aghanim,Monique Arnaud,M. Ashdown,J. Aumont,Carlo Baccigalupi,A. J. Banday,A. J. Banday,R. B. Barreiro,James G. Bartlett,James G. Bartlett,N. Bartolo,N. Bartolo,E. Battaner,Richard A. Battye,K. Benabed,Alain Benoit,A. Benoit-Lévy,A. Benoit-Lévy,J.-P. Bernard,J.-P. Bernard,Marco Bersanelli,Marco Bersanelli,P. Bielewicz,P. Bielewicz,J. J. Bock,Anna Bonaldi,Laura Bonavera,J. R. Bond,Julian Borrill,Julian Borrill,François R. Bouchet,Francois Boulanger,M. Bucher,Carlo Burigana,Carlo Burigana,R. C. Butler,Erminia Calabrese,Jean-François Cardoso,Jean-François Cardoso,Jean-François Cardoso,A. Catalano,A. Catalano,Anthony Challinor,A. Chamballu,A. Chamballu,A. Chamballu,Ranga-Ram Chary,H. C. Chiang,H. C. Chiang,Jens Chluba,P. R. Christensen,Sarah E. Church,David L. Clements,S. Colombi,L. P. L. Colombo,L. P. L. Colombo,C. Combet,A. Coulais,B. P. Crill,A. Curto,A. Curto,F. Cuttaia,Luigi Danese,R. D. Davies,R. J. Davis,P. de Bernardis,A. de Rosa,G. de Zotti,G. de Zotti,Jacques Delabrouille,F.-X. Désert,E. Di Valentino,Clive Dickinson,Jose M. Diego,Klaus Dolag,Klaus Dolag,H. Dole,H. Dole,S. Donzelli,Olivier Doré,Marian Douspis,A. Ducout,A. Ducout,Jo Dunkley,X. Dupac,George Efstathiou,F. Elsner,F. Elsner,Torsten A. Enßlin,H. K. Eriksen,Marzieh Farhang,Marzieh Farhang,James R. Fergusson,Fabio Finelli,Olivier Forni,Olivier Forni,M. Frailis,A. A. Fraisse,E. Franceschi,A. Frejsel,S. Galeotta,S. Galli,K. Ganga,C. Gauthier,C. Gauthier,M. Gerbino,M. Gerbino,M. Gerbino,Tuhin Ghosh,M. Giard,M. Giard,Y. Giraud-Héraud,Elena Giusarma,E. Gjerløw,J. González-Nuevo,J. González-Nuevo,Krzysztof M. Gorski,Krzysztof M. Gorski,Serge Gratton,A. Gregorio,A. Gregorio,Alessandro Gruppuso,Jon E. Gudmundsson,Jon E. Gudmundsson,Jon E. Gudmundsson,Jan Hamann,Jan Hamann,F. K. Hansen,Duncan Hanson,Duncan Hanson,Duncan Hanson,D. L. Harrison,George Helou,Sophie Henrot-Versille,C. Hernández-Monteagudo,D. Herranz,S. R. Hildebrandt,E. Hivon,Michael P. Hobson,W. A. Holmes,Allan Hornstrup,W. Hovest,Zhiqi Huang,Kevin M. Huffenberger,G. Hurier,Andrew H. Jaffe,T. R. Jaffe,T. R. Jaffe,W. C. Jones,Mika Juvela,E. Keihänen,Reijo Keskitalo,Theodore Kisner,R. Kneissl,R. Kneissl,J. Knoche,Lloyd Knox,Martin Kunz,Martin Kunz,Martin Kunz,Hannu Kurki-Suonio,Guilaine Lagache,Guilaine Lagache,Anne Lähteenmäki,Anne Lähteenmäki,J.-M. Lamarre,Anthony Lasenby,Massimiliano Lattanzi,Charles R. Lawrence,J. P. Leahy,R. Leonardi,Julien Lesgourgues,Julien Lesgourgues,François Levrier,Antony Lewis,Michele Liguori,Michele Liguori,P. B. Lilje,M. Linden-Vørnle,M. López-Caniego,M. López-Caniego,Philip Lubin,J. F. Macías-Pérez,G. Maggio,Davide Maino,Davide Maino,N. Mandolesi,N. Mandolesi,A. Mangilli,A. Mangilli,A. Marchini,Michele Maris,Peter G. Martin,M. Martinelli,E. Martínez-González,Silvia Masi,Sabino Matarrese,Sabino Matarrese,P. McGehee,Peter Meinhold,Alessandro Melchiorri,Jean-Baptiste Melin,L. Mendes,A. Mennella,A. Mennella,M. Migliaccio,Marius Millea,Subhasish Mitra,Subhasish Mitra,M.-A. Miville-Deschênes,M.-A. Miville-Deschênes,A. Moneti,L. Montier,L. Montier,Gianluca Morgante,Daniel J. Mortlock,Adam Moss,Dipak Munshi,J. A. Murphy,Pavel Naselsky,Federico Nati,Paolo Natoli,Paolo Natoli,Calvin B. Netterfield,Hans Ulrik Nørgaard-Nielsen,F. Noviello,Dmitry Novikov,I. D. Novikov,I. D. Novikov,C. A. Oxborrow,F. Paci,L. Pagano,F. Pajot,Roberta Paladini,Daniela Paoletti,Bruce Partridge,F. Pasian,G. Patanchon,T. J. Pearson,O. Perdereau,L. Perotto,Francesca Perrotta,Valeria Pettorino,F. Piacentini,M. Piat,E. Pierpaoli,Davide Pietrobon,Stéphane Plaszczynski,Etienne Pointecouteau,Etienne Pointecouteau,G. Polenta,G. Polenta,L. Popa,G. W. Pratt,G. Prézeau,Simon Prunet,J.-L. Puget,Jörg P. Rachen,Jörg P. Rachen,William T. Reach,Rafael Rebolo,Rafael Rebolo,M. Reinecke,Mathieu Remazeilles,Mathieu Remazeilles,Mathieu Remazeilles,C. Renault,A. Renzi,I. Ristorcelli,I. Ristorcelli,Graca Rocha,C. Rosset,M. Rossetti,M. Rossetti,G. Roudier,G. Roudier,G. Roudier,B. Rouillé d'Orfeuil,Michael Rowan-Robinson,Jose Alberto Rubino-Martin,Jose Alberto Rubino-Martin,Ben Rusholme,Najla Said,Valentina Salvatelli,Valentina Salvatelli,Laura Salvati,M. Sandri,D. Santos,M. Savelainen,Giorgio Savini,Douglas Scott,Michael Seiffert,Paolo Serra,E. P. S. Shellard,Locke D. Spencer,M. Spinelli,V. Stolyarov,V. Stolyarov,V. Stolyarov,R. Stompor,R. Sudiwala,R. A. Sunyaev,R. A. Sunyaev,D. Sutton,A.-S. Suur-Uski,J.-F. Sygnet,J. A. Tauber,Luca Terenzi,Luca Terenzi,L. Toffolatti,L. Toffolatti,L. Toffolatti,M. Tomasi,M. Tomasi,M. Tristram,Tiziana Trombetti,Tiziana Trombetti,M. Tucci,J. Tuovinen,Marc Türler,G. Umana,Luca Valenziano,Jussi-Pekka Väliviita,F. Van Tent,P. Vielva,Fabrizio Villa,L. A. Wade,Benjamin D. Wandelt,Benjamin D. Wandelt,Ingunn Kathrine Wehus,Ingunn Kathrine Wehus,Martin White,Simon D. M. White,Althea Wilkinson,D. Yvon,Andrea Zacchei,Andrea Zonca +337 more
TL;DR: In this article, the authors present a cosmological analysis based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation.
Journal ArticleDOI
Planck 2015 results. XIII. Cosmological parameters
Peter A. R. Ade,Nabila Aghanim,Monique Arnaud,M. Ashdown,J. Aumont,Carlo Baccigalupi,A. J. Banday,R. B. Barreiro,James G. Bartlett,N. Bartolo,E. Battaner,Richard A. Battye,K. Benabed,Alain Benoit,A. Benoit-Lévy,J.-P. Bernard,Marco Bersanelli,P. Bielewicz,J. J. Bock,Anna Bonaldi,Laura Bonavera,J. R. Bond,Julian Borrill,François R. Bouchet,F. Boulanger,M. Bucher,Carlo Burigana,R. C. Butler,Erminia Calabrese,Jean-François Cardoso,A. Catalano,Anthony Challinor,A. Chamballu,Ranga-Ram Chary,H. C. Chiang,Jens Chluba,P. R. Christensen,Sarah E. Church,David L. Clements,S. Colombi,L. P. L. Colombo,C. Combet,A. Coulais,B. P. Crill,A. Curto,F. Cuttaia,Luigi Danese,R. D. Davies,R. J. Davis,P. de Bernardis,A. de Rosa,G. de Zotti,Jacques Delabrouille,F.-X. Désert,E. Di Valentino,Clive Dickinson,Jose M. Diego,Klaus Dolag,H. Dole,S. Donzelli,Olivier Doré,Marian Douspis,A. Ducout,Jo Dunkley,X. Dupac,George Efstathiou,F. Elsner,Torsten A. Ensslin,H. K. Eriksen,Marzieh Farhang,James R. Fergusson,Fabio Finelli,Olivier Forni,M. Frailis,A. A. Fraisse,E. Franceschi,A. Frejsel,S. Galeotta,S. Galli,K. Ganga,C. Gauthier,Martina Gerbino,Tuhin Ghosh,M. Giard,Y. Giraud-Héraud,Elena Giusarma,E. Gjerløw,J. González-Nuevo,Krzysztof M. Gorski,Serge Gratton,A. Gregorio,Alessandro Gruppuso,Jon E. Gudmundsson,Jan Hamann,F. K. Hansen,Duncan Hanson,D. L. Harrison,George Helou,Sophie Henrot-Versille,C. Hernández-Monteagudo,D. Herranz,S. R. Hildebrandt,E. Hivon,Michael P. Hobson,W. A. Holmes,Allan Hornstrup,W. Hovest,Zhiqi Huang,Kevin M. Huffenberger,G. Hurier,Andrew H. Jaffe,T. R. Jaffe,W. C. Jones,Mika Juvela,E. Keihänen,Reijo Keskitalo,Theodore Kisner,R. Kneissl,J. Knoche,Lloyd Knox,Martin Kunz,Hannu Kurki-Suonio,Guilaine Lagache,Anne Lähteenmäki,J.-M. Lamarre,Anthony Lasenby,Massimiliano Lattanzi,Charles R. Lawrence,J. P. Leahy,R. Leonardi,Julien Lesgourgues,François Levrier,Antony Lewis,Michele Liguori,P. B. Lilje,M. Linden-Vørnle,M. López-Caniego,Philip Lubin,J. F. Macías-Pérez,G. Maggio,Davide Maino,N. Mandolesi,A. Mangilli,A. Marchini,Peter G. Martin,M. Martinelli,E. Martínez-González,Silvia Masi,Sabino Matarrese,Pasquale Mazzotta,P. McGehee,Peter Meinhold,Alessandro Melchiorri,J.-B. Melin,L. Mendes,A. Mennella,M. Migliaccio,M. Millea,S. Mitra,M.-A. Miville-Deschênes,A. Moneti,L. Montier,Gianluca Morgante,Daniel J. Mortlock,Adam Moss,Dipak Munshi,J. A. Murphy,Pavel Naselsky,Federico Nati,Paolo Natoli,Calvin B. Netterfield,Hans Ulrik Nørgaard-Nielsen,F. Noviello,Dmitry Novikov,I. D. Novikov,C. A. Oxborrow,F. Paci,L. Pagano,F. Pajot,R. Paladini,Daniela Paoletti,Bruce Partridge,F. Pasian,G. Patanchon,T. J. Pearson,O. Perdereau,L. Perotto,Francesca Perrotta,Valeria Pettorino,F. Piacentini,M. Piat,E. Pierpaoli,Davide Pietrobon,Stéphane Plaszczynski,Etienne Pointecouteau,G. Polenta,L. Popa,G. W. Pratt,G. Prézeau,Simon Prunet,J.-L. Puget,Jörg P. Rachen,William T. Reach,Rafael Rebolo,M. Reinecke,Mathieu Remazeilles,C. Renault,A. Renzi,I. Ristorcelli,Graca Rocha,C. Rosset,M. Rossetti,G. Roudier,B. Rouillé d'Orfeuil,Michael Rowan-Robinson,Jose Alberto Rubino-Martin,Ben Rusholme,Najla Said,Valentina Salvatelli,L. Salvati,M. Sandri,D. Santos,M. Savelainen,Giorgio Savini,Douglas Scott,Michael Seiffert,Paolo Serra,E. P. S. Shellard,Locke D. Spencer,M. Spinelli,V. Stolyarov,R. Stompor,R. Sudiwala,R. A. Sunyaev,D. Sutton,A.-S. Suur-Uski,J.-F. Sygnet,J. A. Tauber,Luca Terenzi,L. Toffolatti,M. Tomasi,M. Tristram,T. Trombetti,M. Tucci,J. Tuovinen,M. Turler,G. Umana,Luca Valenziano,Jussi-Pekka Väliviita,B. Van Tent,P. Vielva,Fabrizio Villa,L. A. Wade,Benjamin D. Wandelt,Ingunn Kathrine Wehus,Martin White,Simon D. M. White,Althea Wilkinson,D. Yvon,Andrea Zacchei,Andrea Zonca +260 more
TL;DR: In this paper, the authors present results based on full-mission Planck observations of temperature and polarization anisotropies of the CMB, which are consistent with the six-parameter inflationary LCDM cosmology.
Journal ArticleDOI
Secondary standard stars for absolute spectrophotometry
J. B. Oke,James E. Gunn +1 more
TL;DR: In this article, the absolute spectral energy distribution for the primary standard star Alpha Lyrae was adopted and absolute fluxes for the four very metal-deficient F type subdwarfs HD 19445, HD 84937, BD + 26.2606 deg, and BD + 17.4703 deg.
Journal ArticleDOI
Atlas of quasar energy distributions
Martin Elvis,Belinda Jane Wilkes,Jonathan C. McDowell,Richard F. Green,Jill Bechtold,Steven P. Willner,M. S. Oey,M. S. Oey,Elisha Polomski,Elisha Polomski,Roc Cutri +10 more
TL;DR: In this article, the spectral energy distributions (SEDs) of normal, nonblazar, quasars over the whole available range (radio to 10 keV X-rays) of the electromagnetic spectrum are presented.