NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 1 of 671
Discovery of the double Doppler-shifted emission-line systems in the X-ray spectrum of SS 433
Author and Affiliation:
Kotani, Taro(Inst. of Space and Astronautical Science, Kanagawa, Japan)
Kawai, Nobuyuki(Inst. of Physical and Chemical Research, Saitama, Japan)
Aoki, Takashi(Inst. of Space and Astronautical Science, Kanagawa, Japan)
Doty, John(Massachusetts Inst. of Technology, Cambridge, MA, United States)
Matsuoka, Masaru(Inst. of Physical and Chemical Research, Saitama, Japan)
Mitsuda, Kazuhisa(Inst. of Space and Astronautical Science, Kanagawa, Japan)
Nagase, Fumiaki(Inst. of Space and Astronautical Science, Kanagawa, Japan)
Ricker, George(Massachusetts Inst. of Technology, Cambridge, MA, United States)
White, Nick E.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Abstract: We have used the CCD X-ray spectrometers on ASCA and resolved the X-ray emission line from the jet of SS 433 both into Doppler-shifted components with two distinct velocities, and into emission from different ionization states of iron, i.e., Fe XXV and Fe XXVI. This is the first direct detection of the two Doppler shifted beams in the X-ray spectra of SS 433 and allows the radial velocity of the jet along the line of sight to be determined with an accuracy comparable to the optical spectroscopy. We also found pairs of emission lines from other atomic species, such as ionized silicon and sulfur, with the Doppler shifts consistent with each other. This confirms the origin of the X-ray emission in the high temperature plasma in the jets.
Publication Date: Jan 01, 1994
Document ID:
19950036817
(Acquired Dec 28, 1995)
Accession Number: 95A68416
Subject Category: ASTRONOMY
Document Type: Journal Article
Publication Information: PASJ: Publications of the Astronomical Society of Japan (ISSN 0004-6264); 46; 4; p. L147-L150
Publisher Information: Japan
Financial Sponsor: NASA; United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: DOPPLER EFFECT; EMISSION SPECTRA; IRON; PLASMA JETS; X RAY ASTRONOMY; X RAY BINARIES; X RAY SPECTRA; CHARGE COUPLED DEVICES; IMAGING SPECTROMETERS; OPTICAL EMISSION SPECTROSCOPY; RADIAL VELOCITY; SATELLITE-BORNE INSTRUMENTS; SILICON; SULFUR
Imprint And Other Notes: PASJ: Publications of the Astronomical Society of Japan vol. 46, no. 4 p. L147-L150 1994
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 19, 2011
Contact Us