CaltechAUTHORS
  A Caltech Library Service

Spectrophotometry and Infrared Photometry of BL Lacertae

Oke, J. B. and Neugebauer, G. and Becklin, E. E. (1969) Spectrophotometry and Infrared Photometry of BL Lacertae. Astrophysical Journal, 156 (1). L41-L43. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20170228-132118823

[img] PDF - Published Version
See Usage Policy.

224kB

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20170228-132118823

Abstract

The absolute spectral-energy distribution of BL Lacertae from 0.315 to 2.2 μ indicates that the optical radiation might be a continuation of the observed radio synchrotron flux. The very steep slope of the spectral-energy distribution suggests that the object is not a quasi-stellar radio source. Only one very faint spectral feature may exist, and no redshift can be derived.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1086/180345DOIArticle
http://adsabs.harvard.edu/doi/10.1086/180345ADSArticle
Additional Information:© 1969 The University of Chicago. Received February 17, 1969. We thank Dr. Wallace Sargent for calling our attention to BL Lac, and Mr. Gary Tuton for assistance in making the 200-inch observations. This research was supported by grant NGL 05-002-007 from the National Aeronautics and Space Administration. The multichannel spectrometer and auxiliary equipment were provided by grant DA-ARO-D-31-124-G705 of the Advanced Research Projects Agency.
Funders:
Funding AgencyGrant Number
NASANGL 05-002-007
Advanced Research Projects Agency (ARPA)DA-ARO-D-31-124-G705
Issue or Number:1
Record Number:CaltechAUTHORS:20170228-132118823
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170228-132118823
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74595
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:28 Feb 2017 21:41
Last Modified:03 Oct 2019 16:40

Repository Staff Only: item control page