Wavy Stratus under Photon Surfing over Luminous Disks

• FUKUE, Jun

Abstract

type:Article

In a geometrically thin cloud layer under photon surfing over an infinite disk with uniform brightness, a wavy fluctuation automatically amplifies itself. This is a new type of instability for an inhomogeneous stratus moving at a relativistic speed in intense radiation fields. Under radiative flux and drag forces, the equilibrium speed of a wave top can reach ultra-relativistic speed, although the equilibrium speed of a wave base remains in the mildly relativistic regime (～0.45c) due to radiation drag. That is, the equilibrium speed of the wavy stratus with wavelength lambda becomes 0.99 c(Lorentz factor gamma ～ 10) at height z ～ 10 lambda. As a result, the radiation-drag limit in the astrophysical jets can be broken. The terminal speed, which depends on the strength of radiation fields as well as the wavelength, is also obtained.

Journal

• PASJ : publications of the Astronomical Society of Japan

  PASJ : publications of the Astronomical Society of Japan 55 451-459, 2003-04-25

  Astronomical Society of Japan

Keywords

• accretion
• accretion disks
• astrophysical jets
• gamma rays: bursts
• instabilities
• radiation

Details

• CRID: 1050564287757337856
• NII Article ID: 10023926720
• NII Book ID: AA1082896X
• ISSN: 00046264
• NDL BIB ID: 6514796
• Web Site: http://ir.lib.osaka-kyoiku.ac.jp/dspace/handle/123456789/1194
• Web Site: http://id.ndl.go.jp/bib/6514796
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6514796
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • NDL
  • CiNii Articles
  • KAKEN