| Autor: |
D. Kuandykova, M. Khabibullina, A. Borisov, P. Tsybulev, A. Kudryashova, S. Trushkin, N. Bursov |
| Rok vydání: |
2022 |
| Zdroj: |
ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021. |
| Popis: |
With the RATAN-600 radio telescope, we have detected about 1300 radio sources at 4.7 GHz frequency, identified withsources from other catalogs, mostly from the NVSS catalog at 1.4 GHz. From 6 June 2020 to 28 May 2021, the strip (width∼ 35 ′ ) of the sky on the microquasar GRS 1915+105 declination (Dec = +11 ◦ 56 ′ 44 ′′ ) was observed with a four-beamcomplex of four-channel sensitive radiometers, established in the focal line of the ’Western sector’ antenna of the RATAN-600. We summarized the data received in narrow channels to obtain maximum sensitivity of the flux (∼ 3 mJy/beam) inthe 600 MHz frequency band at the center 4.7 GHz frequency. This value is constrained only by the effect of confusion foran antenna beam with dimensions about 1 ′ × 35 ′ . We obtained about 20–25 high-quality day records divided by hours everymonth and 12 average hour drift scans for a year. We plotted and analyzed the light curves for bright variable sources forall 365 days. We identified the detected sources with the objects from the CATS database to plot compiled radio spectra ofthe sources. Most sources were identified as galaxies and quasars. Some supernova remnants were detected in cross-sectionsof the Galactic plane. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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