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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We take advantage of more than 10 years of monitoring of the eclipsing HMXBsystems LMC X-4, Cen X-3, 4U 1700-377, 4U 1538-522, SMC X-1, IGR J18027-2016,Vela X-1, IGR J17252-3616, XTE J1855-026, and OAO 1657-415 with the ASMon-board RXTE and ISGRI on-board INTEGRAL to update their ephemeris. Theseresults are used to refine previous measurements of the orbital period decay ofall sources (where available) and provide the first accurate values of theapsidal advance in Vela X-1 and 4U 1538-522. Updated values for the masses ofthe neutron stars hosted in the ten HMXBs are also provided, as well as thelong-term lightcurves folded on the sources best determined orbital parameters.These lightcurves reveal complex eclipse ingresses and egresses, that areunderstood mostly as being due to the presence of accretion wakes. The resultsreported in this paper constitute a database to be used for population andevolutionary studies of HMXBs, as well as theoretical modelling of long-termaccretion in wind-fed X-ray binaries.

The ephemeris, orbital decay, and masses of 10 eclipsing HMXBs