Interacción entre el RSN G359.1-0.5 y el medio interestelar

EPPENS, L.K.; REYNOSO, E M; COMBI, J.A.; LAZENDIC-GALLOWAY, J.

Congreso; 61 Reunión de la Asociación Argentina de Astronomía; 2019

G359.1-0.5 is a supernova remnant near the Galactic center region that belongs to the mixed morphology type, showing a radio continuum shell and diffuse thermal X-ray emission inside. Earlier molecular studies around the location of G359.1-0.5 revealed an annular CO structure in the velocity range from −190−190 to −60 kms−1−60 kms−1 with an HI counterpart, both concentric with the remnant. Six OH masers at 1720~MHz along the edge of the radio-continuum shell were detected at velocities around −5 kms−1−5 kms−1 , largely different from those found in previous molecular studies.In this work, we identify a molecular structure in the 1212 CO and 1313 CO J=1-0 lines between the velocities −12.48−12.48 and +1.83 kms−1+1.83 kms−1 which contains CO clumps apparently related to the OH masers. In addition, analyzing XMM-Newton archival data, we found evidence that part of the interior gas is not in ionization equilibrium. Finally, based on the collected data, we suggest a likely astrophysical scenario for G359.5-0.1.