Fast-Growing SMBHs in Fast-Growing Galaxies, at High Redshifts: The Role of Major Mergers as Revealed by ALMA

PDF Version Also Available for Download.

Description

This article presents 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 ≃ 4.8.

Physical Description

6 p.

Creation Information

Trakhtenbrot, Benny; Lira, Paulina; Netzer, Hagai; Cicone, Claudia; Maiolino, Roberto & Shemmer, Ohad November 30, 2017.

Context

This article is part of the collection entitled: UNT Scholarly Works and was provided by UNT College of Arts and Sciences to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

Who

People and organizations associated with either the creation of this article or its content.

Authors

Publisher

Provided By

UNT College of Arts and Sciences

The UNT College of Arts and Sciences educates students in traditional liberal arts, performing arts, sciences, professional, and technical academic programs. In addition to its departments, the college includes academic centers, institutes, programs, and offices providing diverse courses of study.

Contact Us

What

Descriptive information to help identify this article. Follow the links below to find similar items on the Digital Library.

Degree Information

Description

This article presents 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 ≃ 4.8.

Physical Description

6 p.

Notes

Abstract: 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 ≃
4.8. These quasars have rather uniform properties, with typical accretion rates and black
hole masses of L/LEdd ≃ 0.7 and MBH ≃ 109 M⊙. The sample consists of “FIR-bright”
sources with a previous Herschel/SPIRE detection, suggesting SFR >1,000M⊙ yr−1, as
well as of “FIR-faint” sources for which Herschel stacking analysis implies a typical SFR
of ∼400M⊙ yr−1. Six of the quasars have been observed by ALMA in [C II] λ157.74μm
line emission and adjacent rest-frame 150μm 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
∼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.

Source

  • Frontiers in Astronomy and Space Sciences, 2017. Lausanne, Switzerland: Frontiers Research Foundation

Language

Item Type

Identifier

Unique identifying numbers for this article in the Digital Library or other systems.

Publication Information

  • Publication Title: Frontiers in Astronomy and Space Sciences
  • Volume: 4
  • Pages: 1-6
  • Peer Reviewed: Yes

Collections

This article is part of the following collection of related materials.

UNT Scholarly Works

Materials from the UNT community's research, creative, and scholarly activities and UNT's Open Access Repository. Access to some items in this collection may be restricted.

What responsibilities do I have when using this article?

When

Dates and time periods associated with this article.

Submitted Date

  • September 30, 2017

Accepted Date

  • November 6, 2017

Creation Date

  • November 30, 2017

Added to The UNT Digital Library

  • May 1, 2018, 12:41 a.m.

Usage Statistics

When was this article last used?

Yesterday: 0
Past 30 days: 0
Total Uses: 4

Interact With This Article

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

Trakhtenbrot, Benny; Lira, Paulina; Netzer, Hagai; Cicone, Claudia; Maiolino, Roberto & Shemmer, Ohad. Fast-Growing SMBHs in Fast-Growing Galaxies, at High Redshifts: The Role of Major Mergers as Revealed by ALMA, article, November 30, 2017; Lausanne, Switzerland. (digital.library.unt.edu/ark:/67531/metadc1132751/: accessed July 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Arts and Sciences.