Subvenciones relacionadas:
General
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
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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A Tale of Three: Magnetic Fields along the Orion Integral-shaped Filament as Revealed by the JCMT BISTRO SurveyAs part of the B-fields In Star-forming Region Observations survey, we present James Clerk Maxwell Telescope (JCMT) 850 μm polarimetric observations toward the Orion integral-shaped filament (ISF) that covers three portions known as OMC-1, OMC-2, and OMC-3. The magnetic field threading the ISF seen in the JCMT POL-2 map appears as a tale of threeWu, Jintai et al.
Fecha de publicación:
122024 -
The JCMT BISTRO Survey: The Magnetic Fields of the IC 348 Star-forming RegionWe present 850 μm polarization observations of the IC 348 star-forming region in the Perseus molecular cloud as part of the B-fields In STar-forming Region Observation survey. We study the magnetic properties of two cores (HH 211 MMS and IC 348 MMS) and a filamentary structure of IC 348. We find that the overall field tends to be more perpendicularChoi, Youngwoo et al.
Fecha de publicación:
122024 -
JWST/NIRCam Paβ Narrowband Imaging Reveals Ordinary Dust Extinction for Hα Emitters within the Spiderweb Protocluster at z = 2.16We combine JWST/NIRCam and Subaru/MOIRCS dual Paβ+Hα narrowband imaging to trace the dust attenuation and the star formation activities of a sample of 43 Hα emitters at the core of one of the most massive and best-studied clusters in formation at the cosmic noon: the Spiderweb protocluster at z = 2.16. We find that most Hα emitters display Paβ/HαPérez-Martínez, Jose Manuel et al.
Fecha de publicación:
122024 -
JWST/NIRCam Narrowband Survey of Paβ Emitters in the Spiderweb Protocluster at z = 2.16We report the initial result of our Paβ narrowband imaging on a protocluster with the JWST Near Infrared Camera (NIRCam). As NIRCam enables deep narrowband imaging of rest-frame near-infrared lines at z > 1, we target one of the most studied protoclusters, the Spiderweb protocluster at z = 2.16, in which previous studies have confirmed more than aShimakawa, Rhythm et al.
Fecha de publicación:
122024 -
Revealing the Quiescent Galaxy Population in the Spiderweb Protocluster at z = 2.16 with Deep HST/WFC3 Slitless SpectroscopyWe report the Hubble Space Telescope Wide Field Camera 3 G141 grism slitless spectroscopy observation of the core region of the Spiderweb protocluster at z = 2.16. We analyzed the spectra of all objects in a field of view and identified 40 protocluster members, recovering 19 previously identified Hα emitters in addition to revealing 21 new membersNaufal, Abdurrahman et al.
Fecha de publicación:
122024 -
ASW<SUP>2</SUP>DF: Census of the obscured star formation in a galaxy cluster in formation at z = 2.2We report the results of the deep and wide Atacama Large Millimeter/submillimeter Array (ALMA) 1.2 mm mapping of the Spiderweb protocluster at z = 2.16. The observations were divided into six contiguous fields covering a survey area of 19.3 arcmin 2. With ∼13h of on-source time, the final maps in the six fields reach the 1σ rms noise in a range ofZhang, Y. H. et al.
Fecha de publicación:
122024 -
Spectroscopic analysis of the strongly lensed SN Encore: constraints on cosmic evolution of Type Ia supernovaeStrong gravitational lensing magnifies the light from a background source, allowing us to study these sources in detail. Here, we study the spectra of a $z = 1.95$ lensed Type Ia supernova (SN Ia) SN Encore for its brightest image A, taken 39 d apart. We infer the spectral age with template matching using the supernova identification (SNID )Dhawan, S. et al.
Fecha de publicación:
122024 -
Atacama Large Aperture Submillimeter Telescope (AtLAST) science: The hidden circumgalactic mediumOur knowledge of galaxy formation and evolution has incredibly progressed through multi-wavelength observational constraints of the interstellar medium (ISM) of galaxies at all cosmic epochs. However, little is known about the physical properties of the more diffuse and lower surface brightness reservoir of gas and dust that extends beyond ISMLee, Minju et al.
Fecha de publicación:
62024 -
Atacama Large Aperture Submillimeter Telescope (AtLAST) science: Surveying the distant UniverseDuring the most active period of star formation in galaxies, which occurs in the redshift range 1 < z < 3, strong bursts of star formation result in significant quantities of dust, which obscures new stars being formed as their UV/optical light is absorbed and then re-emitted in the infrared, which redshifts into the mm/sub-mm bands for these earlyvan Kampen, Eelco et al.
Fecha de publicación:
62024 -
MeerKAT observations of Herschel protocluster candidatesHigh-redshift protoclusters consisting of dusty starbursts are thought to play an important role in galaxy evolution. Their dusty nature makes them bright in the far-infrared (FIR)/submm but difficult to find in optical/near-infrared (NIR) surveys. Radio observations are an excellent way to study these dusty starbursts, as dust is transparent inDing, Y. et al.
Fecha de publicación:
112024 -
Euclid preparation: L. Calibration of the halo linear bias in Λ(v)CDM cosmologiesThe Euclid mission, designed to map the geometry of the dark Universe, presents an unprecedented opportunity for advancing our understanding of the cosmos through its photometric galaxy cluster survey. Central to this endeavor is the accurate calibration of the mass- and redshift-dependent halo bias (HB), which is the focus of this paper. Our aimEuclid Collaboration et al.
Fecha de publicación:
112024 -
The RAdio Galaxy Environment Reference Survey (RAGERS): Evidence of an anisotropic distribution of submillimeter galaxies in the 4C 23.56 protocluster at z = 2.48Context. High-redshift radio(-loud) galaxies (HzRGs) are massive galaxies with powerful radio-loud active galactic nuclei (AGNs) and serve as beacons for protocluster identification. However, the interplay between HzRGs and the large-scale environment remains unclear. Aims. To understand the connection between HzRGs and the surrounding obscuredZhou, D. et al.
Fecha de publicación:
102024 -
NOEMA formIng Cluster survEy (NICE): Characterizing eight massive galaxy groups at 1.5 < z < 4 in the COSMOS fieldThe NOrthern Extended Millimeter Array (NOEMA) formIng Cluster survEy (NICE) is a NOEMA large programme targeting 69 massive galaxy group candidates at z > 2 over six deep fields with a total area of 46 deg 2. Here we report the spectroscopic confirmation of eight massive galaxy groups at redshifts 1.65 ≤ z ≤ 3.61 in the Cosmic Evolution SurveySillassen, Nikolaj B. et al.
Fecha de publicación:
102024 -
An ALMA survey of submillimetre galaxies in the Extended Chandra Deep Field South: an unbiased study of SMG environments measured with narrow-band imagingSubmillimetre galaxies (SMGs) are some of the most extreme star-forming systems in the Universe, whose place in the framework of galaxy evolution is as yet uncertain. It has been hypothesized that SMGs are progenitors of local early-type galaxies, requiring that SMGs generally reside in galaxy cluster progenitors at high redshift. We test thisCornish, Thomas M. et al.
Fecha de publicación:
92024 -
The Radio Galaxy Environment Reference Survey (RAGERS): a submillimetre study of the environments of massive radio-quiet galaxies at z = 1-3Measuring the environments of massive galaxies at high redshift is crucial to understanding galaxy evolution and the conditions that gave rise to the distribution of matter we see in the Universe today. While high-z radio galaxies (HzRGs) and quasars tend to reside in protocluster-like systems, the environments of their radio-quiet counterparts areCornish, Thomas M. et al.
Fecha de publicación:
92024 -
The MAGPI Survey: massive slow rotator population in place by z 0.3We use the 'Middle Ages Galaxy Properties with Integral field spectroscopy' (MAGPI) survey to investigate whether galaxies have evolved in the distribution of their stellar angular momentum in the past 3-4 Gyr, as probed by the observational proxy for spin, λ R. We use 2D stellar kinematics to measure λ R along with detailed photometric models toDerkenne, Caro et al.
Fecha de publicación:
72024 -
SN 2020pvb: A Type IIn-P supernova with a precursor outburstWe present photometric and spectroscopic datasets for SN 2020pvb, a Type IIn-P supernova (SN) that is similar to SNe 1994W, 2005cl, 2009kn, and 2011ht, with a precursor outburst detected (PS1 w band ∼-13.8 mag) around four months before the B-band maximum light. SN 2020pvb presents a relatively bright light curve that peaked at M B = −17.95 ± 0.30Elias-Rosa, N. et al.
Fecha de publicación:
62024 -
Star-formation activity of low-mass galaxies at the peak epoch of galaxy formation probed by deep narrow-band imagingLow-mass galaxies at high redshifts are the building blocks of more massive galaxies at later times and are thus key populations for understanding galaxy formation and evolution. We have made deep narrow-band observations for two protoclusters and the general field in COSMOS at z ~ 2. In a clumpy young protocluster, USS1558-003, at z = 2.53, weDaikuhara, Kazuki et al.
Fecha de publicación:
62024 -
Lensed Type Ia Supernova "Encore" at z = 2: The First Instance of Two Multiply Imaged Supernovae in the Same Host GalaxyA bright (m F150W,AB = 24 mag), z = 1.95 supernova (SN) candidate was discovered in JWST/NIRCam imaging acquired on 2023 November 17. The SN is quintuply imaged as a result of strong gravitational lensing by a foreground galaxy cluster, detected in three locations, and remarkably is the second lensed SN found in the same host galaxy. The previousPierel, J. D. R. et al.
Fecha de publicación:
62024 -
JWST Photometric Time-delay and Magnification Measurements for the Triply Imaged Type Ia "SN H0pe" at z = 1.78Supernova (SN) SN H0pe is a gravitationally lensed, triply imaged, Type Ia SN (SN Ia) discovered in James Webb Space Telescope imaging of the PLCK G165.7+67.0 cluster of galaxies. Well-observed multiply imaged SNe provide a rare opportunity to constrain the Hubble constant (H 0), by measuring the relative time delay between the images and modelingPierel, J. D. R. et al.
Fecha de publicación:
52024