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

Matter at ultra-high densities finds a physical realization inside neutronstars. One key property is their maximum mass, which has far-reachingimplications for astrophysics and the equation of state of ultra dense matter.In this work, we employ Bayesian analysis to scrutinize the mass distributionand maximum mass threshold of galactic neutron stars. We compare two distinctmodels to assess the impact of assuming a uniform distribution for the mostimportant quantity, the cosine of orbital inclination angles ($i$), which hasbeen a common practice in previous analyses. This prevailing assumption yieldsa maximum mass of $2.25$~$M_\odot$ (2.15--3.32~$M_\odot$ within $90\%$confidence), with a strong peak around the maximum value. However, in thesecond model, which indirectly includes observational constraints of $i$, theanalysis supports a mass limit of $2.56^{+0.87}_{-0.58}~M_\odot$ ($2\sigma$uncertainty), a result that points in the same direction as some recent resultsgathered from gravitational wave observations, although their statistics arestill limited. This work stresses the importance of an accurate treatment oforbital inclination angles, and contributes to the ongoing debate about themaximum neutron star mass, further emphasizing the critical role ofuncertainties in the individual neutron star mass determinations.

Mass Distribution and Maximum Mass of Neutron Stars: Effects of Orbital Inclination Angle