Zobrazeno 1 - 10
of 222
pro vyhledávání: '"L. I. Matveenko"'
Publikováno v:
Astronomy Letters. 40:95-110
The structure of the gas-dust complex W3 OH has been investigated in the main hydroxyl radio line at 1665 MHz with the QUASAR system in left- and right-hand circular polarizations. The emission dominates in right-hand circular polarization. Spectra h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c0954770f8387ee9a237ccd4332a3f4
https://doi.org/10.1134/s1063773714030050
https://doi.org/10.1134/s1063773714030050
Autor:
M. G. Abrahamyan, L. I. Matveenko
Publikováno v:
Astrophysics. 55:397-410
Observational data on an active star formation region in the dense molecular cloud Orion KL in the form of H2O maser emission are analyzed in terms of a hydrodynamic whirlwind mechanism for the excitation of bipolar outflows from the disk system. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d5865d77cbe18e9baa5f2d7587ee2b3
https://doi.org/10.1007/s10511-012-9246-5
https://doi.org/10.1007/s10511-012-9246-5
Autor:
V. A. Demichev, L. I. Matveenko
Publikováno v:
Astronomy Reports. 54:986-994
The fine structure of the region of formation of a protostar in the dense molecular cloud OMC-1 of the Orion Nebula was studied during a period of enhanced activity in 1998–1999, with an angular resolution of 50 µas and a velocity resolution of Δ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73156228e67869a2d50c3c277b92755e
https://doi.org/10.1134/s1063772910110041
https://doi.org/10.1134/s1063772910110041
Autor:
V. A. Demichev, L. I. Matveenko
Publikováno v:
Astronomy Reports. 53:79-85
The structure of compact ejections, or bullets, is studied in water-vapor lines at an angular resolution of ∼0.1 milliarcsec. A relationship between the ejections and outbursts in the H2O supermaser emission is found. The bullet speeds reach 12–1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c82d1f50fb910944b21ee84319e0626
https://doi.org/10.1134/s1063772909010090
https://doi.org/10.1134/s1063772909010090
Publikováno v:
Astronomy Reports. 50:951-959
The fine structure of the active region in the Orion KL gas-dust complex has been measured in polarized H2O maser emission (epoch December 12, 1998) with an angular resolution of 0.15 mas, or 0.07 AU, and a velocity resolution of 0.05 km/s. The maser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1639e14251317db94e1d90c8e1a6a7ad
https://doi.org/10.1134/s1063772906120018
https://doi.org/10.1134/s1063772906120018
Autor:
V. A. Demichev, L. I. Matveenko
Publikováno v:
Astronomy Reports. 48:979-987
We have derived the fine structure of the region of the H2O supermaserflare in the Orion Nebula at epoch 1985.8. This structure includes a chain of compact components that extends to 25 AU and has a width of 0.4 AU. The velocities of the components v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa1fdc602e67015acbb4376cbe934363
https://doi.org/10.1134/1.1836021
https://doi.org/10.1134/1.1836021
Publikováno v:
Astronomy Reports. 47:99-109
Radio interferometric observations of an H2O maser flare in the Orion Nebula at epoch 1982.9 have been used to determine the flare’s spatial structure. Antennas in the Crimea, Effelsberg, and Onsala were used. The emission region consists of three
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::406dd1b5ea2d06c7a0396c8388843e40
https://doi.org/10.1134/1.1545573
https://doi.org/10.1134/1.1545573
Publikováno v:
Astronomy Reports. 44:592-610
We present the results of studies of the superfine structure of H2O maser sources in the Orion Nebula. Powerful, low-velocity, compact maser sources are distributed in eight active zones. Highly organized structures in the form of chains of compact c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93d0ef282038e82bf844c62c7c569a1d
https://doi.org/10.1134/1.1307554
https://doi.org/10.1134/1.1307554
Autor:
I. I. Pronik, L. I. Matveenko
Publikováno v:
Astrophysics and Space Science. 164:285-294
The traces of a radio jet from the NGC 1275 galaxy nucleus are revealed in position angle (PA) +45° using the data of published observations at 18, 20, and 73 cm wavelengths. The jet has a distorted form and is seen at 6′–7′ distance from the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e063c8b8063bd0b07e67bc1095e3e2d
https://doi.org/10.1007/bf00658830
https://doi.org/10.1007/bf00658830
Autor:
L. I. Matveenko
Publikováno v:
Extragalactic Radio Sources ISBN: 9780792341222
The structure of the quasar 3C 345 is studied at λ = 49cm. The core has a low-frequency cut off spectrum and α ~ 3. The brightest knot is in the nearest part of the jet. The cocoon wall absorbs low-frequency emission and changes the polarization or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1030c94aaf778e8526e992d81ad71366
https://doi.org/10.1007/978-94-009-0295-4_177
https://doi.org/10.1007/978-94-009-0295-4_177
