0 Assigned ID: 2072 ----- Attempting Submission 1 (Sat Mar 02 00:52:45 GMT 2013) ----- HST Phase I Proposal 2072 (hst_cyc21_AR_CLR.apt) successfully submitted. ----- Attempting Submission 2 (Sat Mar 02 00:56:34 GMT 2013) ----- We propose an archival program to perform what will be the largest-ever study of the kinematics of the optical high ionization (or coronal) lines in nearby Active Galactic Nuclei (AGN). The data, most of which were obtained serendipitously as part of several HST campaigns to study either the Halpha or [OIII] emission line profiles, give us high spatial resolution STIS observations of several coronal lines (such as [Ne V], [Fe VII] and [Fe X]) in more than fifty of the nearest AGNs. We will use these extraordinary datasets to: (i) measure the size and power of the Coronal Line Region (CLR), and trends with the AGN properties, (ii) determine the physical conditions (temperature and density) of the coronal gas from ratios of two coronal lines or a coronal line and a lower ionization line present in the spectrum (e.g. [Ne V]/[O III], [Fe X]/[O II], [Fe VII] 3760/ [Fe VII] 6087), (iii) analyze the velocity profiles and the radial velocity curves of [Fe VII], [Fe X] and [Ne V] to detect signatures of outflows in the high-ionization gas, and (iv) in the targets with clear outflow signatures, measure the mass and energy imparted by the AGN outflow into the interstellar medium. AGN/QUASARS Default Medium false false false false false SUPPORTED