GGrantIndex
← Search

LLAGN LIKELY HAVE RADIATIVELY-INEFFCIENT ACCRETION FLOWS (RIAFS) WHERE AT LEAST THE INNER ACCRETION DISK IS A SPHERICAL PLASMA WHILE THE OUTER REGIONS MAY BE IN A STANDARD GEOMETRICALLY-THIN ACCRETION DISK. WE PROPOSE TO OBSERVE TWO OF THE BRIGHTEST LLAGN WITH NUSTAR AND XNN-NEWTON. THE NUSTAR DATA WILL PROVIDE FOR THE FIRST TIME COVERAGE OF THESE SOURCES UP TO 50 KEV AND THE NUSTAR+XXM-NEWTON BROAD BAND SPECTRUM WILL ALLOW FOR THE MEASUREMENT (OR PLACING STRINGENT CONTRAINTS) ON THE HIGH ENERGY CUTOFF IN THESE SOURCES ALLOWING FOR A COPARISON TO LUMINOUS AGN. USING THE XXM-NEWTON OM THESE DATA WILL PROVIDE SIMULATANEOUS UV-X-RAY SED THAT CAN BE FIT TO RIAF MODELS. ALL THIS WILL ADD TO THE GROWING NUMBER OF NUSTAR AGN AND EXTEND THE HARD X-RAY PROPERTIES TO VERY LOW EDDINGTON RATES.

$23,971FY2017National Aeronautics and Space AdministrationNASA

George Washington University (The)

Investigators

View source on USAspending →
LLAGN LIKELY HAVE RADIATIVELY-INEFFCIENT ACCRETION FLOWS (RIAFS) WHERE AT LEAST THE INNER ACCRETION DISK IS A SPHERICAL PLASMA WHILE THE OUTER REGIONS MAY BE IN A STANDARD GEOMETRICALLY-THIN ACCRETION DISK. WE PROPOSE TO OBSERVE TWO OF THE BRIGHTEST LLAGN WITH NUSTAR AND XNN-NEWTON. THE NUSTAR DATA WILL PROVIDE FOR THE FIRST TIME COVERAGE OF THESE SOURCES UP TO 50 KEV AND THE NUSTAR+XXM-NEWTON BROAD BAND SPECTRUM WILL ALLOW FOR THE MEASUREMENT (OR PLACING STRINGENT CONTRAINTS) ON THE HIGH ENERGY CUTOFF IN THESE SOURCES ALLOWING FOR A COPARISON TO LUMINOUS AGN. USING THE XXM-NEWTON OM THESE DATA WILL PROVIDE SIMULATANEOUS UV-X-RAY SED THAT CAN BE FIT TO RIAF MODELS. ALL THIS WILL ADD TO THE GROWING NUMBER OF NUSTAR AGN AND EXTEND THE HARD X-RAY PROPERTIES TO VERY LOW EDDINGTON RATES. · GrantIndex