【摘 要】
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Narrow-line Seyfert 1(NLS1)galaxies are a sub-class of AGN with relatively lowmass black holes,accreting near the Eddington rate.A small fraction of them is radio-loud and harbors relativistic jets.RX
【出 处】
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国际天文学联合会第312次专题会议
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Narrow-line Seyfert 1(NLS1)galaxies are a sub-class of AGN with relatively lowmass black holes,accreting near the Eddington rate.A small fraction of them is radio-loud and harbors relativistic jets.RXJ23149+22 is a member of the class NLS1 galaxies,and remarkable for its multi-wavelength properties.It is radio-loud,luminous in the infrared,tentatively detected in the gamma-ray regime,has a flat X-ray spectrum and peculiar UV spectrum,and hosts an exceptionally broad and blue-shifted [OⅢ] emission line,indicating the presence of a strong outflow.We present new multi-wavelength data of RXJ23149+22,including radio observations at Effelsberg observatory,optical spectroscopy and monitoring at Xinglong observatory,and optical–X-ray observations with Swift.We discuss the nature of this radio-loud NLS1 galaxy and implications for the NLS1 phenomenon.
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