Zobrazeno 1 - 10
of 47
pro vyhledávání: '"L. I. Matveyenko"'
Autor:
L. I. Matveyenko, S. S. Sivakon
Publikováno v:
Astronomy Letters. 45:475-489
Based on VLBA observations (NRAO archive) at λ = 2 cm, we have constructed radio maps of the Seyfert galaxy NGC 1275 with a resolution of 25 µas, the epochs of 1995–2015, and at λ = 7 mm (Boston University archive), the epochs of 2000–2015, wi
Autor:
L. I. Matveyenko, S. S. Sivakon
Publikováno v:
Astronomy Letters. 44:754-768
This conclusive paper summarizes the results of our studies of the fine and superfine structure of the blazar OJ 287 at wavelengths of 7 mm and 2 cm in polarized emission with angular resolution is 20 μas. The orientation of the polarization of its
Autor:
S. S. Sivakon, L. I. Matveyenko
Publikováno v:
Astronomy Letters. 44:421-441
We have continued our studies of the fine structure of the active region in the blazar OJ 287 at wavelength λ = 2cm with a resolution of 20 μas, the epochs of 1995–2017. We have identified fragments of two arms along which the surrounding plasma
Autor:
S. S. Sivakon, L. I. Matveyenko
Publikováno v:
Astronomy Letters. 43:796-811
The fine structure of the active region, the bulge, of the blazar OJ 287 has been investigated with a resolution of 20 μas (0.1 pc) at a wavelength of 7 mm, the epochs of 2007–2017. The structure and kinematics correspond to a vortex nature. The s
Publikováno v:
Astronomy Letters. 43:400-415
The kinematics of the superfine structure of the active star-forming region in the dense molecular cloud Orion-KL has been investigated in the Н2О maser emission for the period 1998–2003. It has been established that the surrounding gas inflows o
Autor:
L. I. Matveyenko, S. S. Sivakon
Publikováno v:
Astronomy Letters. 42:639-651
The superfine structure of the object 3C 454.3 has been investigated at λ = 7 mm in polarized emission. The kinematics of the structure is shown to correspond to a vortex. A spiral structure like an Archimedes spiral has been established in the accr
Autor:
S. V. Seleznev, L. I. Matveyenko
Publikováno v:
Astronomy Letters. 42:207-214
The fine structure of the nucleus of the Seyfert galaxy NGC 1275 was investigated in 2005–2010 at a wavelength of 2 cm with a resolution as high as 50 μas. The structure consists of two parallel identical systems, eastern and western, spaced 0.5 p
Autor:
L. I. Matveyenko, S. V. Seleznev
Publikováno v:
Astronomy Letters. 41:712-742
The superfine structure of the active region of the radio galaxy M 87 has been investigated at millimeter and centimeter wavelengths. A disk, a core, a jet, and a counterjet have been identified. The disk is inclined to the plane of the sky at an ang
Autor:
L. I. Matveyenko, S. V. Seleznev
Publikováno v:
Astronomy Letters. 41:743-747
The superfine structure of the bipolar outflow from the radio galaxy Cygnus A has been investigated at a wavelength of 2 cm. The surrounding thermal plasma inflows onto the disk and is transferred in a spiral to the center, with the plasma velocity a
Autor:
S. V. Seleznev, L. I. Matveyenko
Publikováno v:
Astronomy Letters. 40:759-772
The fine structure of the nucleus of the radio galaxy M 87 has been investigated at wavelengths of 2 and 3 cm. Its kinematics is determined by the inflow of the surrounding thermal plasma onto the “accretion disk, ” its transfer in a spiral to th