English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Pro

Presents the zaia usage as premium feature

ZAIA

Presents AI Discovery search usage as a premium feature

AI Discovery

Presents AI Discovery explain and summary usage as a premium feature

Content Analysis

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Presents the pdf analysis as premium feature

PDF Analysis

1500 Top-up

3000 Top-up

Zendy Basic

2500 Top-up

Zendy Unlimited

Presents the access of premium content as premium feature

Premium Content

Rossi X-ray Timing Explorer (RXTE)/Proportional Counter Array (PCA)observations of IGR J19294+1816 covering two outburst episodes are reported.The first outburst happened during MJD 54921-54925 (2009 C.E.) and the secondone happened during MJD 55499-55507 (2010 C.E.). In both the cases the PCAobservations were made during the decay phase of the outburst, with the sourceexhibiting temporal and spectral evolution with the change in flux. At thebright flux level an absorption feature at 35.5 keV is detected in the spectrawhich may be attributed to Cyclotron Resonance Scattering Feature correspondingto a magnetic field of B = 4.13*10^12 Gauss. This is also detected at a lowersignificance in two other observations. In addition an Fe line emission at 6.4keV is prominently detected during the highest flux. X-ray pulsations aredetected in 9 out of 10 observations; no pulsations were found in theobservation with the lowest flux level. During this observation with the lowestflux the pulsation phenomenon becomes detectable only at the soft X-ray bands.

Timing and Spectral Study of IGR J19294+1816 with RXTE: Discovery of Cyclotron Feature