Fast-Growing SMBHs in Fast-Growing Galaxies, at high redshifts: the role of Major Mergers as revealed by ALMA
MetadatosMostrar el registro completo del ítem
We present a long-term, multi-wavelength project to understand the epoch of fastest growth of the most massive black holes by using a sample of 40 luminous quasars at z similar or equal to 4.8. These quasars have rather uniform properties, with typical accretion rates and black hole masses of L/L-Edd similar or equal to 0.7 and M-BH similar or equal to 10(9) M-circle dot. The sample consists of "FIR-bright" sources with a previous Herschel/SPIRE detection, suggesting SFR > 1,000 M-circle dot yr(-1), as well as of "FIR-faint" sources for which Herschel stacking analysis implies a typical SFR of similar to 400 M-circle dot yr(-1). Six of the quasars have been observed by ALMA in [C II] lambda 157.74 mu m line emission and adjacent rest-frame 150 mu m continuum, to study the dusty cold ISM. ALMA detected companion, spectroscopically confirmed sub-mm galaxies (SMGs) for three sources-one FIR-bright and two FIR-faint. The companions are separated by similar to 14-45 kpc from the quasar hosts, and we interpret them as major galaxy interactions. Our ALMA data therefore clearly support the idea that major mergers may be important drivers for rapid, early SMBH growth. However, the fact that not all high-SFR quasar hosts are accompanied by interacting SMGs, and their ordered gas kinematics observed by ALMA, suggest that other processes may be fueling these systems. Our analysis thus demonstrates the diversity of host galaxy properties and gas accretion mechanisms associated with early and rapid SMBH growth.
Artículo de publicación ISI
Cita del ítemFront. Astron. Space Sci. 4:49.
Los siguientes archivos de licencia se asocian a este ítem:
Excepto si se señala otra cosa, la licencia del ítem se describe como Attribution-NonCommercial-NoDerivs 3.0 Chile
Mostrando ítems relacionados por Título, autor o materia.
Shapley Supercluster Survey: ram-pressure stripping versus tidal interactions in the Shapley supercluster Merluzzi, P.; Busarello, G.; Dopita, M. A.; Haines, C. P.; Steinhauser, D.; Bourdin, H.; Mazzotta, P. (2016)We present two new examples of galaxies undergoing transformation in the Shapley supercluster core. These low-mass galaxies are members of the two clusters SC 1329-313 and SC 1327-312 z similar to 0.049). Integral-field ...
Cortés López, Juan; Kenney, Jeffrey; Hardy Raskovan, Eduardo (American Astronomical Society, 2015)We present the stellar and ionized gas kinematics of 13 bright peculiar Virgo cluster galaxies observed with the DensePak Integral Field Unit at the WIYN 3.5m telescope in order to look for kinematic evidence that ...
The virus-p exploration of nearby galaxies (venga): radial gas inflow andshock excitation in ngc 1042 Luo, Rongxin; Hao, Lei; Blanc Mendiberri, Guillermo; Jogee, Shardha; van den Bosch, Remco C. E.; Weinzirl, Tim (IOP Publishing, 2016)NGC 1042 is a late-type bulgeless disk galaxy that hosts low-luminosity active galactic nuclei (AGNs) coincident with a massive nuclear star cluster. In this paper, we present the integral field spectroscopy studies of ...