VARIABILITY FEATURES OF THE RADIO SOURCE OT 081 IN CENTIMETER WAVELENGTH RANGE
OT 081 – BL Lac object, intensively studied for many years in a wide range of the electromagnetic spectrum. We used observational data for 1999-2011 years, obtained on radio telescope at Michigan State University (UMRAO) at frequencies 14.5, 8, 4.8 GHz.For the study variability of the radio source...
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Format: | Article |
Language: | English |
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Odessa I. I. Mechnykov National University
2014-10-01
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Series: | Odessa Astronomical Publications |
Online Access: | http://oap.onu.edu.ua/article/view/81295 |
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author | A. L. Sukharev Margo F. Aller |
author_facet | A. L. Sukharev Margo F. Aller |
author_sort | A. L. Sukharev |
collection | DOAJ |
description | OT 081 – BL Lac object, intensively studied for many years in a wide range of the electromagnetic spectrum. We used observational data for 1999-2011 years, obtained on radio telescope at Michigan State University (UMRAO) at frequencies 14.5, 8, 4.8 GHz.For the study variability of the radio source used wavelet method of time series analysis. The values of main periods at three frequencies are ~2.6 and 1.2 years. The shortest periods with values ~0.9, 0.6, 0.4 years were shown in small time intervals (1.5 years). For harmonic components isolated by filtration, determined delay between radio frequencies. Obtained comparison of change between periods fluctuations of radio fluxes and dynamics in the radio jet (image VLBI Mojave, 15.4 GHz). |
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format | Article |
id | doaj.art-e6461a8dad0d479dbddb5d8d4538475f |
institution | Directory Open Access Journal |
issn | 1810-4215 |
language | English |
last_indexed | 2024-12-14T15:38:29Z |
publishDate | 2014-10-01 |
publisher | Odessa I. I. Mechnykov National University |
record_format | Article |
series | Odessa Astronomical Publications |
spelling | doaj.art-e6461a8dad0d479dbddb5d8d4538475f2022-12-21T22:55:41ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152014-10-01271788010.18524/1810-4215.2014.27.8129581295VARIABILITY FEATURES OF THE RADIO SOURCE OT 081 IN CENTIMETER WAVELENGTH RANGEA. L. Sukharev0Margo F. Aller1Radio Astronomical Institute of National Academy Sciences of Ukraine, Observatory "URAN-4"Radio astronomical observatory of Michigan UniversityOT 081 – BL Lac object, intensively studied for many years in a wide range of the electromagnetic spectrum. We used observational data for 1999-2011 years, obtained on radio telescope at Michigan State University (UMRAO) at frequencies 14.5, 8, 4.8 GHz.For the study variability of the radio source used wavelet method of time series analysis. The values of main periods at three frequencies are ~2.6 and 1.2 years. The shortest periods with values ~0.9, 0.6, 0.4 years were shown in small time intervals (1.5 years). For harmonic components isolated by filtration, determined delay between radio frequencies. Obtained comparison of change between periods fluctuations of radio fluxes and dynamics in the radio jet (image VLBI Mojave, 15.4 GHz).http://oap.onu.edu.ua/article/view/81295 |
spellingShingle | A. L. Sukharev Margo F. Aller VARIABILITY FEATURES OF THE RADIO SOURCE OT 081 IN CENTIMETER WAVELENGTH RANGE Odessa Astronomical Publications |
title | VARIABILITY FEATURES OF THE RADIO SOURCE OT 081 IN CENTIMETER WAVELENGTH RANGE |
title_full | VARIABILITY FEATURES OF THE RADIO SOURCE OT 081 IN CENTIMETER WAVELENGTH RANGE |
title_fullStr | VARIABILITY FEATURES OF THE RADIO SOURCE OT 081 IN CENTIMETER WAVELENGTH RANGE |
title_full_unstemmed | VARIABILITY FEATURES OF THE RADIO SOURCE OT 081 IN CENTIMETER WAVELENGTH RANGE |
title_short | VARIABILITY FEATURES OF THE RADIO SOURCE OT 081 IN CENTIMETER WAVELENGTH RANGE |
title_sort | variability features of the radio source ot 081 in centimeter wavelength range |
url | http://oap.onu.edu.ua/article/view/81295 |
work_keys_str_mv | AT alsukharev variabilityfeaturesoftheradiosourceot081incentimeterwavelengthrange AT margofaller variabilityfeaturesoftheradiosourceot081incentimeterwavelengthrange |