论文标题
活性星系中的分子气体加热和改性粉尘特性：生长黑洞还是潮汐冲击？
Molecular Gas Heating and Modified Dust Properties in Active Galaxies: Growing Black Holes or Tidal Shocks?
论文作者
论文摘要
我们研究了被称为活性银河核（AGN）的超质量黑洞（SMBH）以及重力相互作用的生长以及如何影响星系的温暖分子气体和灰尘。我们的分析侧重于z <0.1的630个星系的形态和温暖的ISM特性。我们使用Pan-Starrs调查的Grizy图像将星系对合并，早期合并和非Mergers进行分类。我们使用从旋转H2过渡，粉尘和PAH特征以及9.7微米处的硅酸盐发射或吸收线来对发射的miR光谱测量，以研究引力相互作用如何影响AGN和非AGN宿主中的温暖ISM。我们发现，在AGN主持人中，ISM较温暖，H2与PAH的比率更大，PAH发射线比和硅酸盐强度的值范围更大。我们发现合并的H2发射和非毒品剂之间的统计差异，但是这些差异在统计学上比AGN和非AGN宿主之间的统计学差异不大。
We investigate if and how growing super-massive black holes (SMBH) known as Active Galactic Nuclei (AGN) and gravitational interactions affect the warm molecular gas and dust of galaxies. Our analysis focuses on the morphologies and warm ISM properties of 630 galaxies at z < 0.1. We use grizy images from the Pan-STARRS survey to classify the galaxies into mergers, early mergers, and non-mergers. We use MIR spectroscopic measurements of emission from rotational H2 transitions, dust and PAH features, and silicate emission or absorption lines at 9.7 microns to study how gravitational interactions impact the warm ISM in AGN and non-AGN hosts. We find that in AGN-hosts, the ISM is warmer, the ratios of H2 to PAHs are larger, the PAH emission line ratios and silicate strengths have a wider range of values than in non-AGN hosts. We find some statistical differences between the H2 emission of mergers and non-mergers, but those differences are less statistically significant than those between AGN and non-AGN hosts.
