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Radio Physics and Radio Astronomy

ISSN Imprimer: 2152-274X
ISSN En ligne: 2152-2758

Archives: Volume 1, 2010 to Volume 3, 2012

Radio Physics and Radio Astronomy

DOI: 10.1615/RadioPhysicsRadioAstronomy.v3.i1.30
pages 19-26

OBSERVATION OF 13CO AND METHANOL LINE EMISSION FROM SUPERNOVA REMNANT KES 79

Valery M. Shulga
Institute of Radio Astronomy of the National Academy of Sciences of Ukraine, Kharkov, Ukraine
S. Y. Zubrin
Institute of Radio Astronomy, National Academy of Sciences of Ukraine, Kharkiv, Ukraine
V. V. Myshenko
Institute of Radio Astronomy, National Academy of Sciences of Ukraine 4, Mystetstv St., Kharkiv, 61002, Ukraine

RÉSUMÉ

Molecular environment of galactic supernova remnant Kes 79 is investigated using results of observations of 13CO and methanol molecular line emission. The 13CO emission line broadening associated with radial velocities about +90 and +105 km/s has been first revealed. The effect suggests new evidence of the possible interaction of supernova remnant Kes 79 with molecular clouds. The line broadening at the radial velocity +105 km/s was observed throughout the remnant surface, while that at +90 km/s was seen near its north-eastern boundary. A methanol maser has been detected in the direction of the OH-molecule emission region observed earlier in Kes 79. It is expected that the maser emission is a result of the supernova remnant interaction with a molecular cloud moving at the radial velocity +90 km/s. The intensity of the detected source is variable with time.