Variability of Quasars at 10 Microns

Neugebauer, G. and Matthews, K. (1999) Variability of Quasars at 10 Microns. Astronomical Journal, 118 (1). pp. 35-45. ISSN 0004-6256. doi:10.1086/300945. https://resolver.caltech.edu/CaltechAUTHORS:20170215-124414131

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Abstract

Twenty-five low-redshift quasars have been monitored for several decades at five near- and midinfrared wavelengths to detect rapid variations that would indicate that a nonthermal component was present in the "10 μm bump." Such variability has apparently been detected in several radio-loud quasars and in the radio-quiet quasar PG 1535+547. In addition, the structure function of PG 1226+023 shows that an apparently periodic component is present in its near-infrared emission.

Item Type:

Article

Related URLs:

URL	URL Type	Description
https://doi.org/10.1086/300945	DOI	Article
http://iopscience.iop.org/article/10.1086/300945/meta	Publisher	Article
https://arxiv.org/abs/astro-ph/9903363	arXiv	Discussion Paper

Alternate Title:

Variability of Quasars at 10 μm

Additional Information:

© 1999 The American Astronomical Society. Received 1999 March 9; accepted 1999 March 18. This paper is based on the text of the first author's Russell Lecture, delivered before the American Astronomical Society on 1997 January 13. A project of several decades duration cannot be contemplated without the support and help of a large number of people. We thank Lee Armus, Eric Becklin, Jay Elias, James Graham, Todd Hunter, Jon Kawamora, David Shupe, Tom Soifer, and Alycia Weinberger as well as the night assistants Rick Burruss, Juan Carrasco, Gene Hancock, Skip Staples, and Gary Tuton and the entire staffs of Palomar and Mount Wilson Observatories for help obtaining these data. We acknowledge helpful discussions with Lee Armus, Peter Barthel, Roger Blandford, David Hogg, Marcia Neugebauer, Sterl Phinney, Annila Sargent, Tom Soifer, and Alycia Weinberger. Caltech, NSF, and NASA have supported us over the years.

Funders:

Funding Agency	Grant Number
Caltech	UNSPECIFIED
NSF	UNSPECIFIED
NASA	UNSPECIFIED

Issue or Number:

DOI:

10.1086/300945

Record Number:

CaltechAUTHORS:20170215-124414131

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20170215-124414131

Official Citation:

G. Neugebauer and K. Matthews 1999 AJ 118 35

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ID Code:

74326

Collection:

CaltechAUTHORS

Deposited By:

Tony Diaz

Deposited On:

15 Feb 2017 20:53

Last Modified:

11 Nov 2021 05:26

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