Signatures of Accretion Disks in Quasar Microlensing：（签名的吸积盘类星体透镜）.pdfVIP

下载本文档

1
0
约 12页
2017-06-30 发布于浙江
举报
版权申诉

Signatures of Accretion Disks in Quasar Microlensing：（签名的吸积盘类星体透镜）.pdf

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

Signatures of Accretion Disks in Quasar Microlensing：（签名的吸积盘类星体透镜）

Signatures of Accretion Disks in Quasar Microlensing 1 Andrew Gould Dept of Astronomy, Ohio State University, Columbus, OH 43210 6 9 Jordi Miralda-Escud´e 9 1 Dept of Physics Astronomy, University of Pennsylvania, Philadelphia, PA 19104 c e e-mail gould@payne.mps.ohio-state.edu D 4 e-mail jordi@llull.physics.upenn.edu 1 1 Abstract v 4 We propose that relative variability on short time-scales of the multiple images 4 1 of a lensed quasar, after removal of the time delay, may be caused by hot spots 2 or other moving structures in the accretion disk crossing microlens caustics caused 1 6 by stellar mass objects in the lensing galaxy. Such variability has been reported 9 in the two images of 0957+561. The short durations would be due to the high / h rotation speed of the disk (v/c ∼ 0.1), rather than planetary mass objects in p −3 - the slowly moving (v/c ∼ 10 ) lens. This interpretation could be conﬁrmed o r by ﬁnding periodicity, or correlations of the spectral and ﬂux variations due to t s the Doppler eﬀect in the disk. We also propose another signature of stationary a : accretion disks (with no intrinsic variability): the gradient of the magniﬁcation over v i the accretion disk should cause a relative color change between the images whose X sign and amplitude are correlated with the time derivative of the