THE DISCOVERY OF PULSED IRON LINE EMISSION FROM CENTAURUS X-3

Authors
DAY CSR NAGASE F ASAI K TAKESHIMA T
Citation
Csr. Day et al., THE DISCOVERY OF PULSED IRON LINE EMISSION FROM CENTAURUS X-3, The Astrophysical journal, 408(2), 1993, pp. 656-659
Citations number
20
Categorie Soggetti
Astronomy & Astrophysics
Journal title
The Astrophysical journal → ACNP
ISSN journal
0004637X
Volume
408
Issue
2
Year of publication
1993
Part
1
Pages
656 - 659
Database
ISI
SICI code
0004-637X(1993)408:2<656:TDOPIL>2.0.ZU;2-I
Abstract
We present the first discovery of pulsed iron line emission from an X- ray binary, namely Cen X-3. Compared with the continuum pulsations, th e iron line pulsations are shallow (50% change in amplitude), smeared (the profile is a single-peaked sinusoid) and phase-shifted (by about half a cycle). We also discuss the constraints on the origin of the li ne imposed by this discovery and by other observations.