Галактика и Метагалактика
Построены карты нетеплового фонового радиоизлучения Галактики в диапазоне 10-25 МГц с наивысшей для декаметрового диапазона чувствительностью и разрешающей способностью.
R-2 Northern Sky Survey
- The total observation time - more than 1 500 days
- Observation period - 1980 to 2003
Оbservation parameters for the Northen Sky Survey
| Frequency(MHz) | 12.6 | 14.7 | 16.7 | 20.0 | 25.0 |
| Bandwidth(kHz) | 10 | 10 | 10 | 40 | 40 |
| HPBW(ra*dec) | 55*67 | 47*58 | 41*51 | 34*42 | 28*34 |
| Fluctuation Sensitivity (J/beam) Galactic plane | 85.1 | 45.5 | 37.6 | 20.5 | 16.5 |
| Fluctuation Sensitivity (J/beam) off Galactic Plane | 65.3 | 40.2 | 29.6 | 14.5 | 11.4 |
Изучены пространственная и спектральная структуры галактических остатков сверхновых (более 10).
Table of SNR observed at UTR-2
| № | DEC1950(g m) | RA1950(h m) | Name | Publication |
| 1 | -03 57 – 03 13 | 17 38 – 19 40 | W44, L=320 (SNR’s) | - |
| 2 | 01 50 – 13 00 | 06 00 – 07 05 | Monocer. Neb., PKS0646+06 (SNR’s) | 1982DoUkr…….44A |
| 3 | 02 49 – 09 11 | 18 45 – 19 55 | W50, L=400 (SNR’s) | 1987XIXth Gal&ExtgalRA, Abstr. |
| 4 | 13 55 – 19 23 | 05 30 – 06 40 | PKS0607+17 (SNR) | 1988A&A…200..185K |
| 5 | 21 31 – 23 30 | 05 54 – 06 33 | IC 443 (SNR) | 2006RPh&RA (in Russian) |
| 6 | 27 34 – 32 26 | 18 39 – 21 40 | Cygnus Loop, L=650 (SNR’s) | 2006 XXVI GA IAU, Abs. book |
| 7 | 44 45 – 49 10 | 04 05 – 05 15 | HB9 (SNR), S216 (PN) | 1988SvA....32..634K, 1987KFNT….3…11A |
| 8 | 48 12 – 52 48 | 20 10 – 21 20 | HB21 (SNR) | 1989KFNT….5…44K |
| 9 | 60 55 – 65 30 | 01 40 – 02 50 | HB3, 3C58 (SNR’s) | 2006RPh&RA (in Russian) |
| 10 | 70 00 – 74 33 | 23 20 – 00 50 | CTA1 (SNR) | 1990SvA….34..197K |
Map of SNR’s observed at UTR-2
Обнаружено и изучено поглощение фонового радиоизлучения в более чем 10 протяженных эмиссионных туманностях (областях HII).
HII Regions
| № | DEC1950(g m) | RA1950(h m) | Name | Publication |
| 1 | -03 40 – 01 10 | 04 22 – 06 18 | Barnard’s Loop, IC434 (HII) | 1992SvA....36..246A |
| 2 | -01 00 – 04 00 | 06 05 – 07 08 | Sh280,282,284 (HII) | 1988AbramenkovPhD |
| 3 | 02 50 – 08 15 | 06 00 – 07 05 | NGC2237, Rosette nebula (HII) | 1978Ap&SS..54..187K |
| 4 | 06 00 – 12 00 | 05 10 – 06 07 | Sh264 (HII) | 1988AbramenkovPhD |
| 5 | 06 50 – 12 50 | 06 05 – 07 05 | NGC2264 (HII) | 1982SvA....26..160A |
| 6 | 31 50 – 36 50 | 04 45 – 05 45 | IC405, 410 (HII) | 1983SvA....27...32A |
| 7 | 33 50 – 39 00 | 03 30 – 04 30 | NGC 1499 (HII) | 1978Ap&SS..58..347K |
| 8 | 41 30 – 46 10 | 20 40 – 21 55 | Sh117, 119 (HII) | 1992Ap.....35..274A |
| 9 | 50 40 – 55 10 | 03 30 – 04 35 | Sh205,206,209, (HII),L1407(dust cloud) | 1985SvA....29..616A |
| 10 | 57 15 – 62 05 | 02 05 – 03 35 | W4,W5,Sh202 (HII) | 1992SvA....36..374A |
Physical parameters of HII regions and volume density of the Galactic background at 25 MHz
| HII region | Te, K | EM,pc*cm-6 | tau(25MHz) | l (g) | L (pc) | n (K*ps-1) |
| S 117 | 7100 | 5400 | 6.5 | 85 | 1040 | 18.5 ± 2 |
| S 119 | 5200 | 500 | 0.9 | 87 | 870 | 19 ± 2.5 |
| S 190 | 4900 | 1500 | 3 | 135 | 2200 | 10.5 ± 0.5 |
| S 202 | 1500 | 80 | 1.2 | 141 | 1000 | 25 ± 2 |
| S 220 | 4400 | 13000 | 30 | 161 | 490 | 26 ± 3 |
| S 229 | 6400 | 630 | 0.8 | 172 | 650 | 30 ± 4 |
| S 236 | 11000 | 8000 | 8 | 174 | 3000 | 7.2 ± 1 |
| S 264 | 2800 | 200 | 0.8 | 195 | 500 | 25 ± 2 |
| S 273 | 4100 | 275 | 0.7 | 203 | 710 | 21 ± 4 |
| S 275 | 3600 | 3500 | 10 | 206 | 1500 | 12 ± 1 |
| S 276 | 5900 | 220 | 0.4 | 209 | 500 | 13 ± 2 |
| S 277 | 6000 | 1350 | 2.1 | 207 | 500 | 20 ± 3 |
| S 280 | 2000 | 1400 | 6.4 | 209 | 1500 | 11.5 ± 1 |
| S 282 | 4900 | 430 | 0.9 | 210 | 1500 | 12.5 ± 1 |
| S 284 | 2000 | 1550 | 9.7 | 212 | 5200 | 3.7 ± 0.5 |
Изучено излучение пылевых и молекулярных облаков, галактик и скоплений галактик.
Dust and molecular clouds, galaxy, galactic clusters
| № | DEC1950(g m) | RA1950(h m) | Name | Publication |
| 1 | 25 30 | 04 15 – 05 10 | Heiles2 (dust cloud) | 1982SvA....26..303A |
| 2 | 25 46 – 30 42 | 12 20 – 13 31 | Coma (Gal. Cluster) | - |
| 3 | 29 20 – 34 10 | 03 10 – 04 10 | Per OB-2 (dust cloud) | 1988AbramenkovPhD |
| 4 | 37 40 – 42 19 | 09 08 – 10 15 | Min. brightness region | - |
| 5 | 38 41 – 43 20 | 00 05 – 01 15 | M31 (Galaxy) | 1991 IRA NASU,Prp.49(in Ru.) |
| 6 | 63 17 – 64 52 | 16 56 – 17 26 | A2255 (Gal. Cluster) | - |
| 7 | 69 11 – 70 49 | 08 38 – 09 38 | UMC (molecular cloud) | - |
Andromeda Nebula
Clusters of galaxies
Составлен наиболее полный в декаметровом диапазоне волн каталог радиоисточников северного неба (около 4000 объектов).
- UTR-2 catalogue coverage of the Northern sky. Sizes of individual sources on the figure represent their flux densities. Shaded region is the Galactic disk: |b| < 15°. 2300 discrete sources were detected.
- Results of source count made for UTR-2 survey. Dashed area is the confidence region calculated for confused radio sources. The data in the range of fluxes from 20 to 80 Jy correspond to power law dependence with exponent of 1.84.
Литература:
- Sidorchuk K.M., Konovalenko A. A., Rucker H. O., Lecacheux A., Denis L., SidorchukM. A., Rashkovskij S. L.,Dorovskij V., Zakharenko V. V. «New Methods and Equipement of Decametric Radioastronomy for Continuum Observation at the UTR-2 Radio Telescope»/Kinematics and physics of celestial bodies: 2005, № 5, p. 57 – 60.
- Н.М. Василенко, Д.В.Муха, М.А. Сидорчук, К.М. Сидорчук «Построение и обработка радиокарт Северного неба по наблюдениям в континууме на радиотелескопе УТР-2.» /Радиофизика и радиоастрономия, 2005, т.10, №3, с 244 - 253.
- N.M. Vasilenko, M.A. Sidorchuk , D.V. Muha, S.M. Zakharenko. Very Low Frequency Continuum Survey of the Northern Sky. // XXVIth General Assembly, August 14-25, 2006, Prague, Abstract book, JD12-45. – P. 370.
- S.Ya. Braude, K.M. Sidorchuk, M.A. Sidorchuk, S.L. Rashkovsky, A.P. Miroshnichenko, S.M. Zakharenko. Decameter Discrete Sources Survey of the Northern Sky using the UTR-2 Radio Telescope. // XXVIth General Assembly, August 14-25, 2006, Prague, Abstract book, JD12-44. – P. 370.
- M.A. Sidorchuk, E.A Abramenkov. Observations of the Supernova Remnants HB3, IC443, Cygnus Loop and come others in the direction l=65° at UTR-2 Radio Telescope // XXVIth General Assembly, August 14-25, 2006, Prague, Abstract book, JD12-41. – P. 369.
- Сидорчук М.А., Абраменков Е. А. Остатки вспышек сверхновых НВ3, 3С58 и IC443 в декаметровом диапазоне длин волн //Радиофизика и радиоастрономия – 2006. – Т. 11. – №2. – С. 134-154.
- M.A. Sidorchuk, K.M. Sidorchuk, N.M. Vasilenko, E.A Abramenkov, D.V., Muha, S.M. Zakharenko. Decametric continuum investigations at UTR-2. // Astrophysics in the LOFAR era., Scientific workshop, April 23-27, 2007, Emmen (NL).