Multifrequency observations of the red QSO 1413 + 135

Joel N. Bregman; Marcia J. Lebofsky; Margo F. Aller; George H. Rieke; Hugh D. Aller; Philip E. Hodge; A. E. Glassgold; Patrick J. Huggins

doi:10.1038/293714a0

Multifrequency observations of the red QSO 1413 + 135

Joel N. Bregman
, Marcia J. Lebofsky
, Margo F. Aller
, George H. Rieke
, Hugh D. Aller
, Philip E. Hodge
, A. E. Glassgold
, Patrick J. Huggins

Research output: Contribution to journal › Article › peer-review

58 Scopus citations

Abstract

The extremely red QSO 1413 + 135 shows characteristics typical of BL Lac objects - no emission lines, is embedded in a luminous galaxy, is subject to rapid radio and IR variability, has an inverted radio spectrum and shows substantial IR polarization. The rapid steepening of the nonthermal spectrum at λ < 5 μm is interpreted as synchrotron emission from an electron distribution that ends sharply at some maximum energy. The X-ray emission is probably inverse Compton radiation. We calculate that the optically thin emitting region is compact, has a large magnetic field and exhibits bulk relativistic motion towards the observer. The most energetic electrons in the emitting region have a Lorentz factor of 10²-10³.

Original language	English (US)
Pages (from-to)	714-717
Number of pages	4
Journal	Nature
Volume	293
Issue number	5835
DOIs	https://doi.org/10.1038/293714a0
State	Published - 1981

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@article{a0c40398058740ba8a38abc601fcfaf8,

title = "Multifrequency observations of the red QSO 1413 + 135",

abstract = "The extremely red QSO 1413 + 135 shows characteristics typical of BL Lac objects - no emission lines, is embedded in a luminous galaxy, is subject to rapid radio and IR variability, has an inverted radio spectrum and shows substantial IR polarization. The rapid steepening of the nonthermal spectrum at λ < 5 μm is interpreted as synchrotron emission from an electron distribution that ends sharply at some maximum energy. The X-ray emission is probably inverse Compton radiation. We calculate that the optically thin emitting region is compact, has a large magnetic field and exhibits bulk relativistic motion towards the observer. The most energetic electrons in the emitting region have a Lorentz factor of 102-103.",

author = "Bregman, \{Joel N.\} and Lebofsky, \{Marcia J.\} and Aller, \{Margo F.\} and Rieke, \{George H.\} and Aller, \{Hugh D.\} and Hodge, \{Philip E.\} and Glassgold, \{A. E.\} and Huggins, \{Patrick J.\}",

year = "1981",

doi = "10.1038/293714a0",

language = "English (US)",

volume = "293",

pages = "714--717",

journal = "Nature",

issn = "0028-0836",

publisher = "Nature Research",

number = "5835",

}

TY - JOUR

T1 - Multifrequency observations of the red QSO 1413 + 135

AU - Bregman, Joel N.

AU - Lebofsky, Marcia J.

AU - Aller, Margo F.

AU - Rieke, George H.

AU - Aller, Hugh D.

AU - Hodge, Philip E.

AU - Glassgold, A. E.

AU - Huggins, Patrick J.

PY - 1981

Y1 - 1981

N2 - The extremely red QSO 1413 + 135 shows characteristics typical of BL Lac objects - no emission lines, is embedded in a luminous galaxy, is subject to rapid radio and IR variability, has an inverted radio spectrum and shows substantial IR polarization. The rapid steepening of the nonthermal spectrum at λ < 5 μm is interpreted as synchrotron emission from an electron distribution that ends sharply at some maximum energy. The X-ray emission is probably inverse Compton radiation. We calculate that the optically thin emitting region is compact, has a large magnetic field and exhibits bulk relativistic motion towards the observer. The most energetic electrons in the emitting region have a Lorentz factor of 102-103.

AB - The extremely red QSO 1413 + 135 shows characteristics typical of BL Lac objects - no emission lines, is embedded in a luminous galaxy, is subject to rapid radio and IR variability, has an inverted radio spectrum and shows substantial IR polarization. The rapid steepening of the nonthermal spectrum at λ < 5 μm is interpreted as synchrotron emission from an electron distribution that ends sharply at some maximum energy. The X-ray emission is probably inverse Compton radiation. We calculate that the optically thin emitting region is compact, has a large magnetic field and exhibits bulk relativistic motion towards the observer. The most energetic electrons in the emitting region have a Lorentz factor of 102-103.

UR - https://www.scopus.com/pages/publications/0040618432

UR - https://www.scopus.com/pages/publications/0040618432#tab=citedBy

U2 - 10.1038/293714a0

DO - 10.1038/293714a0

M3 - Article

AN - SCOPUS:0040618432

SN - 0028-0836

VL - 293

SP - 714

EP - 717

JO - Nature

JF - Nature

IS - 5835

ER -

Multifrequency observations of the red QSO 1413 + 135

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