论文标题
seyfert 1星系中Agn风的无处不在,低红移
The ubiquity of AGN winds in Seyfert 1 galaxies at low redshift
论文作者
论文摘要
分析了在z <0.4时检测到的3,896个Seyfert〜1(SY1)星系的光谱,以获取流出的证据。在37%的SY1中,流出的流出显示为[OIII] 5007的宽阔,蓝移,平均最大速度v_max〜1014 km/s $,与AGN风一致。对于每个SY1,我们推断了连续体的黑洞(BH)质量,隆隆光度,爱丁顿的比率和幂律指数,我们将其与恒星形成率(SFR)和宿主形态进行了比较。在两个光谱亚组,仅具有宽阔的Balmer线(SY1B)以及狭窄和宽的(SY1N)线的SY1分开的样品中,我们报告了以下差异(SY1BW和SY1NW),我们报告了以下差异:1)BH质量是系统的,比SY1B的sy1b-sy1 sy1-nsn sy1n-syn sy1n-syn sy1。在SY1BW中,与SY1NW相比,在两组均具有BH质量和降压光度的同时相关,3)在SY1中,Eddington的比率和SFR较高,流出流量和4)SY1的特定恒星形成率(SSFRS)对于它们的形态和质量而言正常;典型的早期型螺旋星系在绿谷,远离淬火政权。从这些结果中,我们得出结论,在SY1S中,AGN风是由更高的吸积率触发的,并且可能辐射发射,并且没有明确的证据表明对恒星形成有影响。
The optical spectra of 3,896 Seyfert~1 (Sy1) galaxies detected with WISE at z < 0.4 were analyzed for evidence of outflows. In 37% of the Sy1s the outflows appear as broad, blue-shifted, of the [OIII]5007, with a mean maximum velocity V_max ~1014 km/s$, consistent with AGN winds. For each Sy1 we deduced that black hole (BH) mass, bolometric luminosity, Eddington ratio and power-law index of the continuum, which we compared with the star formation rate (SFR) and host morphology. Having separated our sample in two spectroscopic subgroups, Sy1s with only broad Balmer lines (Sy1B) and with both narrow and broad (Sy1N) lines and distinguishing those that show as outflow (Sy1Bw and Sy1Nw), we report the following differences: 1) the BH mass is systematically higher and the power-law steeper in the Sy1B-Sy1Bw than in the Sy1N-Sy1Nw, 2) V_max is higher in the Sy1Bw than in the Sy1Nw, correlated in both groups with the BH mass and bolometric luminosity, 3) the Eddington ratio and SFR are higher in the Sy1 with outflows, and 4) the specific star formation rates (sSFRs) of the Sy1s are normal for their morphology and mass; typical of early-type spiral galaxies in the green valley, far from the quenched regime. From these results we conclude that in Sy1s AGN winds are triggered by higher accretion rates and probably radiatively launched, and there is no clear evidence of an effect on the star formation.