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/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report detailed, long term near-infrared (NIR) light curves of GRS1915+105 in 2007-2008, covering its long "soft state" for the first time. Fromour NIR monitoring and the X-ray data of the All Sky Monitor (ASM) onboardRossi X-ray Timing Explorer (RXTE), we discovered that the NIR flux dropped by> 1 mag during short X-ray flares with a time-scale of days. With thetermination of the soft state, the H-Ks color reddened and the anti-correlationpattern was broken. The observed H-Ks color variation suggests that thedominant NIR source was an accretion disk during the soft state. The shortX-ray flares during the soft state were associated with spectral hardening inX-rays and increasing radio emission indicating jet ejection. The temporal NIRfading during the X-ray flares, hence, implies a sudden decrease of thecontribution of the accretion disk when the jet is ejected.

Anti-Correlation of the Near-Infrared and X-Ray Variations of the Microquasar GRS 1915+105 in Soft State