SUMMARY OF SEQUENCE NUMBER 400092

SUMMARY OF SEQUENCE NUMBER 400092

Title: TOO OBSERVATION OF THE RELATIVISTIC JET SOURCE CYGNUS X-3

Observer: ELSNER

Subject Category: BH and NS Binaries

Seq: 400092 ObsId: 00425

Long-term Plan bin: no LTS bin

ABSTRACT

In Feb 1997, during a major radio flare in Cyg X-3, a 120 milli-arcsecond radio jet, which exhibited relativistic (~0.9 c) expansion, was observed. Although Chandra would be unable to resolve such a jet, a high-resolution spectra taken during a major flare may contain Doppler shifted emission lines revealing the presence of an x-ray jet. Observations of Cyg X-3 during such a flare offers the very interesting possibility of studying the dynamics of jet formation and propagation through the study of emission lines with the high spectral resolution afforded by the HETG/ACIS SI configuration. The 20 ks length of the observation permits coverage over one complete 4.8 hour cycle. A second 20 ks observation 3 days later provides data for studying the spectral evolution that surely accompanies su

TARGET SUMMARY

TARGET NAME RADEC TIME SI GRAT TYPE TC ROLL PRE PHASE MULTI PRI
CYG X-3
308.106250
40.957694
20.00000
ACIS-S
HETG
DDT
yes
no
no
no
no
5

IMAGES

(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)

Roll/Visibility

PARAMETERS

Obscat Parameters