QUANTITATIVE EVALUATION OF THE HYPOTHESIS THAT BL LACERTAE OBJECTS ARE QSO REMNANTS

We evaluate with numerical simulations the hypothesis that BL Lacertae objects (BLLs) are the remnants of quasi-stellar objects. This hypothesis is based on their highly peculiar redshift evolution. They have a comoving space density that increases with decreasing redshift, contrary to all other act...

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Published in:Astrophysical journal. Letters 2014-11, Vol.796 (1), p.1-4
Main Author: Borra, E F
Format: Article
Language:English
Subjects:
Active galactic nuclei
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BL LACERTAE OBJECTS
Computer simulation
COMPUTERIZED SIMULATION
DETECTION
Evolution
GALAXIES
GALAXY NUCLEI
JETS
Mathematical models
QUASARS
RED SHIFT
RELATIVISTIC RANGE
SPACE
STAR EVOLUTION
SYNCHROTRON RADIATION
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creator Borra, E F
description We evaluate with numerical simulations the hypothesis that BL Lacertae objects (BLLs) are the remnants of quasi-stellar objects. This hypothesis is based on their highly peculiar redshift evolution. They have a comoving space density that increases with decreasing redshift, contrary to all other active galactic nuclei. We assume that relativistic jets are below detection in young radio-quiet quasars and increase in strength with cosmic time so that they eventually are detected as BLLs. Our numerical simulations fit very well the observed redshift distributions of BLLs. There are strong indications that only the high-synchrotron-peaked BLLs could be QSO remnants.
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2041-8213
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subjects Active galactic nuclei
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
BL LACERTAE OBJECTS
Computer simulation
COMPUTERIZED SIMULATION
DETECTION
Evolution
GALAXIES
GALAXY NUCLEI
JETS
Mathematical models
QUASARS
RED SHIFT
RELATIVISTIC RANGE
SPACE
STAR EVOLUTION
SYNCHROTRON RADIATION
title QUANTITATIVE EVALUATION OF THE HYPOTHESIS THAT BL LACERTAE OBJECTS ARE QSO REMNANTS
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