MusE GAs FLOw and wind (MEGAFLOW) VII. A NOEMA pilot program to probe molecular gas in galaxies with measured circumgalactic gas flows
Jonathan Freundlich,Jonathan Freundlich,Jonathan Freundlich,Nicolas Bouché,Thierry Contini,Emanuele Daddi,Johannes Zabl,Ilane Schroetter,Leindert Boogaard,Johan Richard +9 more
TLDR
In this paper, the authors used IRAM's NOrthern Extended Millimeter Array (NOEMA) to probe the molecular gas reservoirs of six $z=0.6-1.1$ star-forming galaxies whose circumgalactic medium has been observed in absorption along quasar lines-of-sight.Abstract:
We present a pilot program using IRAM's NOrthern Extended Millimeter Array (NOEMA) to probe the molecular gas reservoirs of six $z=0.6-1.1$ star-forming galaxies whose circumgalactic medium has been observed in absorption along quasar lines-of-sight as part of the MusE GAs FLOw and Wind (MEGAFLOW) survey and for which we have estimates of either the accretion or the outflow rate. This program is motivated by testing the quasi equilibrium model and the compaction scenario describing the evolution of galaxies along the main sequence of star formation, which imply tight relations between the gas content, the star formation activity, and the amount of gas flowing in and out. We report individual carbon monoxide CO(4-3), CO(3-2) and dust continuum upper limits, as well as stacked CO detections over the whole sample and the three galaxies identified with outflows. The resulting molecular gas fractions and depletion times are compatible with published scaling relations established within a mass-selected sample, indicating that galaxies selected through their absorption follow similar relations on average. We further detect the dust continuum of three of the quasars and a strong emission line in one of them, which we identify as CO(4-3). Extending the sample to more galaxies and deeper observations will enable to quantify how the molecular gas fraction and depletion time depend on the inflow and ouflow rates.read more
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What about the messenger
TL;DR: In this article, NAFU SA and other role players expressed some criticism about government programmes. The criticism was not so much about the objectives and content of these programmes, but rather about their accessibility, or lack thereof, to emerging farmers.
Bimodal gas accretion in the HORIZON-MareNostrum galaxy formation simulation
TL;DR: The physics of diffuse gas accretion and the properties of the cold and hot modes of accretion on to proto-galaxies between z = 2 and 5.4 are investigated using the large cosmological simulation performed with the ramses code on the MareNostrum supercomputing facility as mentioned in this paper.
Posted Content
The Nature and Evolution of Absorption-Selected Galaxies
TL;DR: In this article, the properties of the absorbing galaxies, the connection between galaxy properties and absorption line signatures, and how a combination of QSO absorption line and conventional faint galaxy techniques can be used to study field galaxy evolution to very large redshifts.
Journal ArticleDOI
MusE GAs FLOw and Wind (MEGAFLOW) VIII. Discovery of a Mgii emission halo probed by a quasar sightline
Johannes Zabl,Johannes Zabl,Nicolas Bouché,Lutz Wisotzki,Joop Schaye,Floriane Leclercq,Thibault Garel,Thibault Garel,Martin Wendt,Martin Wendt,Ilane Schroetter,Ilane Schroetter,Sowgat Muzahid,Sowgat Muzahid,Sebastiano Cantalupo,Sebastiano Cantalupo,Thierry Contini,Roland Bacon,Jarle Brinchmann,Jarle Brinchmann,Johan Richard +20 more
TL;DR: In this paper, the first detection of extended MgII emission from a galaxy's halo that is probed by a quasar sightline was reported using deep (11.2hr) VLT/MUSE data from the MEGAFLOW survey.
Journal ArticleDOI
ISM masses and the star formation law at Z = 1 to 6 // ALMA observations of dust continuum in 145 galaxies in the COSMOS survey field
N. Z. Scoville,Kartik Sheth,Herve Aussel,P. Vanden Bout,Peter Capak,Angelo Bongiorno,Caitlin M. Casey,Lena Murchikova,Jin Koda,J. Álvarez-Márquez,Nicholas Lee,Clotilde Laigle,H. J. McCracken,O. Ilbert,Alexandra Pope,David S Sanders,J. Chu,Sune Toft,Rob Ivison,S. Manohar +19 more
TL;DR: In this paper, the authors used ALMA Cycle 2 observations of the long wavelength dust emission in 145 star-forming galaxies to probe the evolution of star forming ISM and found that the galaxies with highest star formation rates (SFRs) at = 2.2 and 4.4 have gas masses up to 100 times that of the Milky Way and gas mass fractions reaching 50 to 80%, i.e. gas masses 1 - 4 times their stellar masses.
References
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Padgett,Nikhil Padmanabhan,Martin Paegert,Nathalie Palanque-Delabrouille,Kaike Pan,John K. Parejko,Isabelle Pâris,Changbom Park,Petchara Pattarakijwanich,Marcos Pellejero-Ibanez,Marcos Pellejero-Ibanez,Joshua Pepper,Joshua Pepper,Will J. Percival,Ismael Perez-Fournon,Ismael Perez-Fournon,Ignasi Pe´rez-Ra`fols,Patrick Petitjean,Matthew M. Pieri,Matthew M. Pieri,Marc H. Pinsonneault,Gustavo F. Porto de Mello,Francisco Prada,Francisco Prada,Abhishek Prakash,Adrian M. Price-Whelan,Pavlos Protopapas,M. Jordan Raddick,Mubdi Rahman,Beth Reid,Beth Reid,James Rich,Hans-Walter Rix,Annie C. Robin,Constance M. Rockosi,T. S. Rodrigues,T. S. Rodrigues,Sergio Rodríguez-Torres,Sergio Rodríguez-Torres,Natalie A. Roe,Ashley J. Ross,Ashley J. Ross,Nicholas P. Ross,Graziano Rossi,John J. Ruan,Jose Alberto Rubino-Martin,Jose Alberto Rubino-Martin,Eli S. Rykoff,Salvador Salazar-Albornoz,Mara Salvato,Lado Samushia,Lado Samushia,Ariel G. Sánchez,Basilio X. Santiago,Conor Sayres,Ricardo P. Schiavon,David J. Schlegel,Sarah J. Schmidt,Donald P. Schneider,Mathias Schultheis,Axel Schwope,Claudia G. Scóccola,Claudia G. Scóccola,Caroline Scott,Kris Sellgren,Hee-Jong Seo,Aldo Serenelli,Neville Shane,Yue Shen,Yue Shen,Matthew Shetrone,Yiping Shu,V. Silva Aguirre,Thirupathi Sivarani,Mike Skrutskie,Anže Slosar,Verne V. Smith,Flavia Sobreira,Diogo Souto,Keivan G. Stassun,Keivan G. Stassun,Matthias Steinmetz,Dennis Stello,Dennis Stello,Michael A. Strauss,Alina Streblyanska,Alina Streblyanska,Nao Suzuki,Molly E. C. Swanson,Jonathan C. Tan,Jamie Tayar,Ryan Terrien,Aniruddha R. Thakar,Daniel Thomas,Daniel Thomas,Neil Thomas,Benjamin A. Thompson,Jeremy L. Tinker,Rita Tojeiro,Nicholas W. Troup,Mariana Vargas-Magaña,Jose Alberto Vazquez,Licia Verde,Licia Verde,Matteo Viel,Nicole P. Vogt,David A. Wake,David A. Wake,Ji Wang,Benjamin A. Weaver,David H. Weinberg,Benjamin J. Weiner,Martin White,Martin White,John C. Wilson,John P. Wisniewski,W. M. Wood-Vasey,Christophe Ye`che,Donald G. York,Nadia L. Zakamska,Olga Zamora,Olga Zamora,Gail Zasowski,Idit Zehavi,Gong-Bo Zhao,Gong-Bo Zhao,Zheng Zheng,Xu Zhou,Zhimin Zhou,Hu Zou,Guangtun Zhu +363 more
TL;DR: The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrogram, and a novel optical interferometer.
Journal ArticleDOI
The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
Shadab Alam,Franco D. Albareti,Carlos Allende Prieto,F. Anders,Scott F. Anderson,Brett H. Andrews,Eric Armengaud,Éric Aubourg,Stephen Bailey,Julian E. Bautista,Rachael L. Beaton,Timothy C. Beers,Chad F. Bender,Andreas A. Berlind,Florian Beutler,Vaishali Bhardwaj,Jonathan C. Bird,Dmitry Bizyaev,Cullen H. Blake,Michael R. Blanton,Michael Blomqvist,John J. Bochanski,Adam S. Bolton,Jo Bovy,A. Shelden Bradley,W. N. Brandt,Dorothée Brauer,J. Brinkmann,Peter J. Brown,Joel R. Brownstein,Angela Burden,Etienne Burtin,Nicolás G. Busca,Zheng Cai,Diego Capozzi,A. C. Rosell,Ricardo Carrera,Yen-Chi Chen,Cristina Chiappini,S. Drew Chojnowski,Chia-Hsun Chuang,Nicolas Clerc,Johan Comparat,Kevin R. Covey,Rupert A. C. Croft,Antonio J. Cuesta,Katia Cunha,Luiz N. da Costa,Nicola Da Rio,James R. A. Davenport,Kyle S. Dawson,Nathan De Lee,Timothée Delubac,Rohit Deshpande,Letícia Dutra-Ferreira,Tom Dwelly,Anne Ealet,Garrett Ebelke,Edward M. Edmondson,Daniel J. Eisenstein,Stephanie Escoffier,Massimiliano Esposito,Xiaohui Fan,Emma Fernández-Alvar,Diane Feuillet,Nurten Filiz Ak,Hayley Finley,Alexis Finoguenov,Kevin Flaherty,Scott W. Fleming,Andreu Font-Ribera,Jonathan B. Foster,Peter M. Frinchaboy,Jessica Galbraith-Frew,D. A. García-Hernández,Ana G. Pérez,Patrick Gaulme,Jian Ge,Ricardo Génova-Santos,Luan Ghezzi,Bruce Gillespie,Léo Girardi,Daniel Goddard,Satya Gontcho A Gontcho,Jonay I. González Hernández,Eva K. Grebel,Jan Niklas Grieb,Nolan Grieves,James E. Gunn,Hong Guo,Paul Harding,Sten Hasselquist,Suzanne L. Hawley,Michael R. Hayden,Fred R. Hearty,Shirley Ho,David W. Hogg,Kelly Holley-Bockelmann,Jon A. Holtzman,K. Honscheid,Joseph Huehnerhoff,Linhua Jiang,Jennifer A. Johnson,Karen Kinemuchi,D. Kirkby,Francisco S. Kitaura,Mark A. Klaene,Jean-Paul Kneib,X. Koenig,Charles R. Lam,Ting-Wen Lan,Dustin Lang,Pierre Laurent,Jean-Marc Le Goff,Alexie Leauthaud,Khee-Gan Lee,Young Sun Lee,Timothy C. Licquia,Jian Liu,Dan Long,Martin Lopez-Corredoira,Diego Lorenzo-Oliveira,Sara Lucatello,Britt Lundgren,Robert H. Lupton,Claude E. Mack,Suvrath Mahadevan,Marcio A. G. Maia,Steven R. Majewski,Elena Malanushenko,Viktor Malanushenko,Arturo Manchado,Marc Manera,Qingqing Mao,Claudia Maraston,Robert C. Marchwinski,Daniel Margala,Sarah L. Martell,Marie Martig,Karen L. Masters,Cameron K. McBride,Peregrine M. McGehee,Ian D. McGreer,Richard G. McMahon,Brice Ménard,M. L. Menzel,Andrea Merloni,Szabolcs Mészáros,Adam A. Miller,Jordi Miralda-Escudé,Hironao Miyatake,Antonio D. Montero-Dorta,Surhud More,Xan Morice-Atkinson,Heather L. Morrison,Demitri Muna,Adam D. Myers,Jeffrey A. Newman,Mark C. Neyrinck,Duy Cuong Nguyen,Robert C. Nichol,David L. Nidever,Pasquier Noterdaeme,Sebastián E. Nuza,Julia E. O'Connell,Robert W. O'Connell,R. W. O'Connell,Ricardo L. C. Ogando,Matthew D. Olmstead,Audrey Oravetz,Daniel Oravetz,Keisuke Osumi,Russell Owen,Deborah Padgett,Nikhil Padmanabhan,Martin Paegert,Nathalie Palanque-Delabrouille,Kaike Pan,John K. Parejko,Changbom Park,Isabelle Pâris,Petchara Pattarakijwanich,Marcos Pellejero-Ibanez,Joshua Pepper,Will J. Percival,Ismael Perez-Fournon,Ignasi Pérez-Ràfols,Patrick Petitjean,Matthew M. Pieri,Marc H. Pinsonneault,Gustavo F. Porto de Mello,Francisco Prada,Abhishek Prakash,Adrian M. Price-Whelan,M. Jordan Raddick,Mubdi Rahman,Beth Reid,James Rich,Hans-Walter Rix,Annie C. Robin,Constance M. Rockosi,Thaíse S. Rodrigues,Sergio Rodríguez-Rottes,Natalie A. Roe,Ashley J. Ross,Nicholas P. Ross,Graziano Rossi,John J. Ruan,Jose Alberto Rubino-Martin,Eli S. Rykoff,Salvador Salazar-Albornoz,Mara Salvato,Lado Samushia,Ariel G. Sánchez,Basilio X. Santiago,Conor Sayres,Ricardo P. Schiavon,David J. Schlegel,Sarah J. Schmidt,Donald P. Schneider,Mathias Schultheis,Axel Schwope,Claudia G. Scóccola,Kris Sellgren,Hee-Jong Seo,Neville Shane,Yue Shen,Matthew Shetrone,Yiping Shu,Thirupathi Sivarani,M. F. Skrutskie,Anže Slosar,Verne V. Smith,Flavia Sobreira,Keivan G. Stassun,Matthias Steinmetz,Michael A. Strauss,Alina Streblyanska,Molly E. C. Swanson,Jonathan C. Tan,Jamie Tayar,Ryan Terrien,Aniruddha R. Thakar,Daniel Thomas,Benjamin A. Thompson,Jeremy L. Tinker,Rita Tojeiro,Nicholas W. Troup,Mariana Vargas-Magaña,Jose Alberto Vazquez,Licia Verde,Matteo Viel,Nicole P. Vogt,David A. Wake,Ji Wang,Benjamin A. Weaver,David H. Weinberg,Benjamin J. Weiner,Martin White,John C. Wilson,John P. Wisniewski,W. M. Wood-Vasey,Christophe Yèche,Donald G. York,Nadia L. Zakamska,Olga Zamora,Gail Zasowski,Idit Zehavi,Gong-Bo Zhao,Zheng Zheng,Xu Zhou,Zhimin Zhou,Guangtun Zhu,Hu Zou +273 more
TL;DR: The third generation of the Sloan Digital Sky Survey (SDSS-III) took data from 2008 to 2014 using the original SDSS wide-field imager, the original and an upgraded multi-object fiber-fed optical spectrograph, a new near-infrared high-resolution spectrogram, and a novel optical interferometer as discussed by the authors.
Journal ArticleDOI
How do galaxies get their gas
TL;DR: In this article, the authors show that at low z < 1, the cosmic star formation rate degrades due to geometry, as the typical cross section of filaments begins to exceed that of the galaxies at their intersections.