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15 GHz Monitoring of Gamma-ray Blazars with the OVRO 40 Meter Telescope in Support of Fermi

Richards, J. L. and Max-Moerbeck, W. and Pavlidou, V. and Pearson, T. J. and Readhead, A. C. S. and Stevenson, M. A. and Healey, S. E. and Romani, R. W. and Shaw, M. S. and Fuhrmann, L. and Angelakis, E. and Zensus, J. A. and Grainge, K. and Taylor, G. B. and Scargle, J. D. (2010) 15 GHz Monitoring of Gamma-ray Blazars with the OVRO 40 Meter Telescope in Support of Fermi. In: X-Ray astronomy-2009 : present status, multi-wavelength approach and future perspectives. AIP Conference Proceedings. No.1248. American Institute of Physics , Melville, NY, pp. 503-504. ISBN 978-0-7354-0795-4 . https://resolver.caltech.edu/CaltechAUTHORS:20110418-145515760

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Abstract

Since mid-2007, we have been monitoring similar to 1200 sources at 15 GHz with the 40 M Telescope at the Owens Valley Radio Observatory. Our sample, mostly blazars, is monitored at least twice per week, yielding densely-sampled light curves. A large fraction of the sources in our sample exhibit significant variation in 15 GHz flux density, enabling variability studies and cross-correlations with other bands. Additionally, many have been detected by the Fermi Gamma-ray Space Telescope. We compare our data with gamma-ray data from Fermi and find a statistically significant flux density correlation after accounting for red shift and selection biases using a new Monte Carlo method. The OVRO program is a part of the F-GAMMA project, which also obtains monthly 2.6 - 270 GHz radio spectra for a smaller, overlapping blazar sample.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.3475321 DOIArticle
http://link.aip.org/link/?APCPCS/1248/503/1PublisherArticle
ORCID:
AuthorORCID
Pearson, T. J.0000-0001-5213-6231
Readhead, A. C. S.0000-0001-9152-961X
Additional Information:© 2010 American Institute of Physics. Issue Date: 15 July 2010. This work is supported in part by NASA NNX08AW31G and the NSF AST-0808050.
Funders:
Funding AgencyGrant Number
NASANNX08AW31G
NSFAST-0808050
Subject Keywords:gamma-ray spectroscopy, astronomical telescopes, quasars, astronomical observatories, redshift
Series Name:AIP Conference Proceedings
Issue or Number:1248
Classification Code:PACS: 95.85.Pw; 95.55.Ka; 98.54.Cm; 95.45.+i; 98.62.Py
Record Number:CaltechAUTHORS:20110418-145515760
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110418-145515760
Official Citation:15 GHz Monitoring of Gamma-ray Blazars with the OVRO 40 Meter Telescope in Support of Fermi J. L. Richards, W. Max-Moerbeck, V. Pavlidou, T. J. Pearson, A. C. S. Readhead, M. A. Stevenson, S. E. Healey, R. W. Romani, M. S. Shaw, L. Fuhrmann, E. Angelakis, J. A. Zensus, K. Grainge, G. B. Taylor, and J. D. Scargle, AIP Conf. Proc. 1248, 503 (2010), DOI:10.1063/1.3475321
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:23373
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:23 Jun 2011 21:46
Last Modified:03 Oct 2019 02:45

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