Landing page for project EY042

IRAS 14070+0525 is an OH gigamaser galaxy that exhibits the most luminous OH maser emission and extraordinarily broad line profiles, spanning approximately 2400 km/s, a characteristic that may be linked to the presence of multiple nuclei or complex dynamical environments. Previous VLBA observations showed that both radio continuum emission and OH emission are significantly resolved. Concurrently, VLA-A observations have localized the radio continuum emission distributing in several hundred mas. Additionally, it is commonly accepted that OH megamaser emission is associated with radio continuum emission and is likely to be distributed within a range of 100 pc to several hundred pc, which can be effectively studied by the resolution of EVN-only, concatenated MERLIN and EVN, and MERLIN-only data. Thus, we propose 8 hrs EVN+MERLIN L-band observation of the OH gigamaser galaxy IRAS 14070+0525. The main aim is to study the radio structure of the OH line emission and radio continuum emission with multi-scale observational data. Then we can study the possible cause for the properties of this rare OH gigamaser for its highest OH line luminoisy and broadest line profile.

This data is part of the archive of VLBI data maintained by JIVE on behalf of the EVN, a network of radio telescopes located primarily in Europe and Asia, with additional antennas in South Africa. The EVN archive itself has the DOI https://doi.org/10.17616/R3Z197