Quasar Outflows: in the 4D Eigenvector 1 Context
نویسندگان
چکیده
منابع مشابه
Quasars in the 4D eigenvector 1 context: a stroll down memory lane
Recently some pessimism has been expressed about our lack of progress in understanding quasars over the 50+ year since their discovery (Antonucci, 2013). It is worthwhile to look back at some of the progress that has been made—but still lies under the radar—perhaps because few people are working on optical/UV spectroscopy in this field. Great advances in understanding quasar phenomenology have ...
متن کاملQuasar Feedback and Galactic - scale Outflows
One of the most fascinating astronomical discoveries of the last several decades was the gradual realization that almost every massive galaxy, including our own Milky Way, contains a supermassive black hole in its center. Several lines of evidence suggest a fundamental connection between the black holes residing in galaxy centers and the formation and evolution of their host galaxies. One such ...
متن کاملIntergalactic Magnetic Fields from Quasar Outflows
Outflows from quasars inevitably pollute the intergalactic medium (IGM) with magnetic fields. The short-lived activity of a quasar leaves behind an expanding magnetized bubble in the IGM. We model the expansion of the remnant quasar bubbles and calculate their distribution as a function of size and magnetic field strength at different redshifts. We generically find that by a redshift z ∼ 3, abo...
متن کاملThe Physical Driver of the Optical Eigenvector 1 in Quasar Main Sequence
Quasars are complex sources, characterized by broad band spectra from radio through optical to X-ray band, with numerous emission and absorption features. This complexity leads to rich diagnostics. However, Boroson andGreen (1992) used Principal Component Analysis (PCA), and with this analysis they were able to show significant correlations between the measured parameters. The leading component...
متن کاملQuasar outflows and the formation of dwarf galaxies
In this paper we propose a scenario for the formation of a population of baryon rich, dark matter deficient dwarf galaxies at high redshift from the mass swept out in the Inter-Galactic Medium (IGM) by energetic outflows from luminous quasars. We predict the intrinsic properties of these galaxies, and examine the prospects for their observational detection in the optical, X-ray and radio waveba...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Astronomical Review
سال: 2012
ISSN: 2167-2857,2167-2865
DOI: 10.1080/21672857.2012.11519710