Año de inicio
2015
Unidad organizativa
Subvenciones relacionadas:
General
Descripción
Dos cuestiones fundamentales en la Astrofísica son la conversión de gas molecuar en estrellas y cómo este proceso físico depende del entorno en todas las escalas, desde sistemas planetarios, cúmulos estelares, galaxias hasta cúmulos de galaxias. El objectivo principal de este proyecto es el de estudiar la formación y evolución de galaxias a partir de la materia interstellar. Por ello, estudiaremos el gas molecuar frío, el combustible de la formación estelar y el polvo, producto residual del proceso de formación, en galaxias a través del tiempo cósmico. Los estudios están basados, sobre todo, en observaciones en el infrarrojo lejano y en el radio. Nos centraremos en observaciones con interferómetros de radio como son NOEMA, ALMA, ATCA, SMA y VLA. Se preveen estrechas colaboraciones con otros proyectos del IAC, sobre todo para observaciones de galaxias con telescopios de radio. El grupo de trabajo caracterizará las propiedades de la formación estelar de galaxias masivas en el universo lejano a través del tiempo cósmico. Esto nos dará la oportunidad de estudiar la secuencia de formación de galaxias con brote estelar. Además, este grupo de trabajo investigará fuentes selecionadas desde cúmulos de galaxias y del campo para explorar la evolución de galaxias en funcion del entorno. Además, realizaremos estudios complementarios de galaxias locales (seleccionadas desde CALIFA y WEAVE-APERTIF) que servirán de referencia para investigaciones futuras de galaxias a alto redshift.
Miembros
Investigador principal
Helmut
Dannerbauer
Personal del proyecto
Colaboradores
Jesús
Falcón Barroso
José Alfonso
López Aguerri
Ismael
Pérez Fournon
Prof.
Rafael
Rebolo López
Dr.
Alberto Bolatto
Dr.
Caitlin Casey
Dr.
Carlos De Breuck
Dr.
Rob Ivison
Dr.
Bjorn Emonts
Dr.
Matt Lehnert
Dr.
Pablo Pérez-González
Dr.
Glenn van de Ven
Dr.
Wei-Hao Wang
Resultados
- Observaciones de follow-up de una galaxia amplificada con brote estelar a z=2.04 con el radio interferómetro IRAM NOEMA descubrío propiedades del gas molecular extraordinaras y revelo la emision más alta en gas molecuar jamas visto en el universo distante; Dannerbauer et al. 2019, AJ, in prensa (astro-ph/1812.03845).
- Contribuciones con varios articulos de co-autor (parte de colaboraciones internacionales) a la investigacion de cúmulos de galaxias en formacion en el universo lejano y sus miembros via estudios de multi-longitud de ondas.
- Otorgada ayuda externa via el plan naciónal de MINECO para 2018 y 2019 incluyendo fondos para contrarar un postdoc por dos años (AYA2017-84061-P: ´De las primeras sobre-densidades a los proto-cumulos ycúmulos: el papel del entorno´, 141.570 Euro, IP1: H. Dannerbauer, IP2: J. M. Rodríguez-Espinosa).
- Concedido tiempo de observaciones para continuar y finalizar el ATCA programa larga 'COALAS: CO ATCA Legacy Archive of Star-Forming Galaxies' (IP: Helmut Dannerbauer), en total 640 horas (~500.000 Euro). Concedido el IRAM NOEMA programa larga ‘A Comprehensive NOEMA Redshift Survey of the Brightest Herschel Galaxies’ (CoIP: Dannerbauer) of 191 hrs. (~770.000 Euro).
- Organización del mini-symposium 'Build-Up of Galaxy Clusters' durante la IAU XXX Assamblea General en Viena en Agosto de 2018 y del splinter "Collaborative GTC-LMT projects" durante el GTC congreso en Valencia en Diciembre de 2018.
Actividad científica
Publicaciones relacionadas
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Confirming Herschel Candidate Protoclusters from ALMA/VLA CO ObservationsALMA 870 μm continuum imaging has uncovered a population of blends of multiple dusty star-forming galaxies (DSFGs) in sources originally detected with the Herschel Space Observatory. However, their pairwise separations are much smaller than what is found by ALMA follow-up of other single-dish surveys or expected from theoretical simulations. UsingGómez-Guijarro, C. et al.
Fecha de publicación:
22019 -
Probing the high-redshift universe with SPICA: Toward the epoch of reionisation and beyondWith the recent discovery of a dozen dusty star-forming galaxies and around 30 quasars at z > 5 that are hyper-luminous in the infrared (μ L IR > 1013 L⊙, where μ is a lensing magnification factor), the possibility has opened up for SPICA, the proposed ESA M5 mid-/far-infrared mission, to extend its spectroscopic studies toward the epoch ofEgami, E. et al.
Fecha de publicación:
122018 -
MAHALO Deep Cluster Survey II. Characterizing massive forming galaxies in the Spiderweb protocluster at z = 2.2This paper is the second in a series presenting the results of our deep H α-line survey towards protoclusters at z > 2, based on narrow-band imaging with the Subaru Telescope. This work investigates massive galaxies in a protocluster region associated with a radio galaxy (PKS 1138 - 262), the Spiderweb galaxy, at z = 2.2. Our 0.5 mag deeper narrowShimakawa, Rhythm et al.
Fecha de publicación:
122018 -
The second-closest gamma-ray burst: sub-luminous GRB 111005A with no supernova in a super-solar metallicity environmentWe report the detection of the radio afterglow of a long gamma-ray burst (GRB) 111005A at 5-345 GHz, including very long baseline interferometry observations with a positional error of 0.2 mas. The afterglow position is coincident with the disc of a galaxy ESO 58049 at z = 0.01326 (˜1″ from its centre), which makes GRB 111005A the second-closestMichałowskI, M. J. et al.
Fecha de publicación:
92018 -
Deciphering the Activity and Quiescence of High-redshift Cluster Environments: ALMA Observations of Cl J1449+0856 at z = 2We present Atacama Large Millimeter/submillimeter Array observations of the 870 μm continuum and CO(4-3) line emission in the core of the galaxy cluster Cl J1449+0856 at z = 2, a near-IR-selected, X-ray-detected system in the mass range of typical progenitors of today’s massive clusters. The 870 μm map reveals six F 870μm > 0.5 mJy sources spreadStrazzullo, V. et al.
Fecha de publicación:
72018 -
Resolving the ISM at the Peak of Cosmic Star Formation with ALMA: The Distribution of CO and Dust Continuum in z ˜ 2.5 Submillimeter GalaxiesWe use Atacama Large Millimeter Array (ALMA) observations of four submillimeter galaxies (SMGs) at z ˜ 2-3 to investigate the spatially resolved properties of the interstellar medium (ISM) at scales of 1-5 kpc (0.″1-0.″6). The velocity fields of our sources, traced by the 12CO(J = 3-2) emission, are consistent with disk rotation to the first orderCalistro Rivera, G. et al.
Fecha de publicación:
82018 -
An ALMA survey of CO in submillimetre galaxies: companions, triggering, and the environment in blended sourcesWe present ALMA observations of the mid-J 12CO emission from six single-dish selected 870-μm sources in the Extended Chandra Deep Field-South and UKIDSS Ultra-Deep Survey fields. These six single-dish submillimetre sources were selected based on previous ALMA continuum observations, which showed that each comprised a blend of emission from two orWardlow, J. L. et al.
Fecha de publicación:
92018 -
Merger-driven star formation activity in Cl J1449+0856 at z = 1.99 as seen by ALMA and JVLAWe use Atacama Large Millimetre Array and Jansky Very Large Array observations of the galaxy cluster Cl J1449+0856 at z = 1.99, in order to study how dust-obscured star formation, interstellar medium content, and active galactic nuclei activity are linked to environment and galaxy interactions during the crucial phase of high-z cluster assembly. WeCoogan, R. T. et al.
Fecha de publicación:
92018 -
A simultaneous search for high-z LAEs and LBGs in the SHARDS surveyWe have undertaken a comprehensive search for both Lyman alpha emitters (LAEs) and Lyman break galaxies (LBGs) in the Survey for High-z Absorption Red and Dead Sources (SHARDS) Survey of the Great Observatories Origins Deep Survey North field. SHARDS is a deep imaging survey, made with the 10.4 m Gran Telescopio Canarias, employing 25 medium bandArrabal Haro, P. et al.
Fecha de publicación:
82018 -
The Dust and [C II] Morphologies of Redshift ∼4.5 Sub-millimeter Galaxies at ∼200 pc Resolution: The Absence of Large Clumps in the Interstellar Medium at High-redshiftWe present deep, high-resolution (0.″03, 200 pc) ALMA Band 7 observations covering the dust continuum and [C II] λ157.7 μm emission in four z ∼ 4.4–4.8 sub-millimeter galaxies (SMGs) selected from the ALESS and AS2UDS surveys. The data show that the rest-frame 160 μm (observed 345 GHz) dust emission is consistent with smooth morphologies on kpcGullberg, B. et al.
Fecha de publicación:
52018 -
Giant galaxy growing from recycled gas: ALMA maps the circumgalactic molecular medium of the Spiderweb in [C I]The circumgalactic medium (CGM) of the massive Spiderweb Galaxy, a conglomerate of merging proto-cluster galaxies at z = 2.2, forms an enriched interface where feedback and recycling act on accreted gas. This is shown by observations of [C I], CO(1-0), and CO(4-3) performed with the Atacama Large Millimeter Array and Australia Telescope CompactEmonts, B. H. C. et al.
Fecha de publicación:
62018 -
The EDGE-CALIFA survey: validating stellar dynamical mass models with CO kinematicsDeriving circular velocities of galaxies from stellar kinematics can provide an estimate of their total dynamical mass, provided a contribution from the velocity dispersion of the stars is taken into account. Molecular gas (e.g. CO), on the other hand, is a dynamically cold tracer and hence acts as an independent circular velocity estimate withoutLeung, G. Y. C. et al.
Fecha de publicación:
62018 -
Red, redder, reddest: SCUBA-2 imaging of colour-selected Herschel sourcesHigh-redshift, luminous, dusty star-forming galaxies (DSFGs) constrain the extremity of galaxy formation theories. The most extreme are discovered through follow-up on candidates in large area surveys. Here, we present extensive 850 μm SCUBA-2 follow-up observations of 188 red DSFG candidates from the Herschel Multitiered Extragalactic SurveyDuivenvoorden, S. et al.
Fecha de publicación:
62018 -
An Extreme Protocluster of Luminous Dusty Starbursts in the Early UniverseWe report the identification of an extreme protocluster of galaxies in the early universe whose core (nicknamed Distant Red Core, DRC, because of its very red color in Herschel SPIRE bands) is formed by at least 10 dusty star-forming galaxies (DSFGs), spectroscopically confirmed to lie at {z}spec}=4.002 via detection of [C I](1–0), 12CO(6–5), 12COOteo, I. et al.
Fecha de publicación:
32018 -
Candidate high-z protoclusters among the Planck compact sources, as revealed by Herschel-SPIREBy determining the nature of all the Planck compact sources within 808.4 deg2 of large Herschel surveys, we have identified 27 candidate protoclusters of dusty star-forming galaxies (DSFGs) that are at least 3σ overdense in either 250, 350, or 500 μm sources. We find roughly half of all the Planck compact sources are resolved by Herschel intoGreenslade, J. et al.
Fecha de publicación:
52018 -
A molecular gas-rich GRB host galaxy at the peak of cosmic star formationWe report the detection of the CO(3-2) emission line from the host galaxy of gamma-ray burst (GRB) 080207 at z = 2.086. This is the first detection of molecular gas in emission from a GRB host galaxy beyond redshift 1. We find this galaxy to be rich in molecular gas with a mass of 1.1 × 10^{11} M_{{\odot }} assuming αCO = 4.36 M_{{\odot }} (K km s^Arabsalmani, M. et al.
Fecha de publicación:
52018 -
The EDGE-CALIFA survey: the influence of galactic rotation on the molecular depletion time across the Hubble sequenceWe present a kpc-scale analysis of the relationship between the molecular depletion time (τ^mol_dep) and the orbital time (τorb) across the field of 39 face-on local galaxies, selected from the EDGE-CALIFA sample. We find that, on average, 5 per cent of the available molecular gas is converted into stars per orbital time, or τ^mol_dep˜ 20 τ_orbColombo, D. et al.
Fecha de publicación:
42018 -
The Herschel Bright Sources (HerBS): sample definition and SCUBA-2 observationsWe present the Herschel Bright Sources (HerBS) sample, a sample of bright, high-redshift Herschel sources detected in the 616.4 deg2 Herschel Astrophysical Terahertz Large Area Survey. The HerBS sample contains 209 galaxies, selected with a 500 μm flux density greater than 80 mJy and an estimated redshift greater than 2. The sample consists of aBakx, Tom J. L. C. et al.
Fecha de publicación:
12018 -
A dusty star-forming galaxy at z = 6 revealed by strong gravitational lensingSince their discovery, submillimetre-selected galaxies1,2 have revolutionized the field of galaxy formation and evolution. From the hundreds of square degrees mapped at submillimetre wavelengths3-5, only a handful of sources have been confirmed to lie at z > 5 (refs 6-10) and only two at z ≥ 6 (refs 11,12). All of these submillimetre galaxies areZavala, J. A. et al.
Fecha de publicación:
12018 -
Molecular gas in the Herschel-selected strongly lensed submillimeter galaxies at z 2-4 as probed by multi-J CO linesWe present the IRAM-30 m observations of multiple-J CO (Jup mostly from 3 up to 8) and [C I](3P2 → 3P1) ([C I](2-1) hereafter) line emission in a sample of redshift 2-4 submillimeter galaxies (SMGs). These SMGs are selected among the brightest-lensed galaxies discovered in the Herschel-Astrophysical Terahertz Large Area Survey (H-ATLAS). FortyYang, C. et al.
Fecha de publicación:
122017
