REVIEW 5 cited by
Evidence of polar and ultralow supernova kicks from the orbits of Be X-ray binaries
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
abstract
Supernovae, the explosive deaths of massive stars, create heavy elements and form black holes and neutron stars. These compact objects often receive a velocity at formation, a "kick" whose physical origin remains debated. We investigate kicks in Be X-ray binaries, containing a neutron star and a rapidly spinning companion. We identify two distinct populations: one with kicks below $10\,\rm{km}\,\rm{s}^{-1}$, much lower than theoretical predictions, and another with kicks around $100\,\rm{km}\,\rm{s}^{-1}$, that shows evidence for being aligned within 5 degrees of the progenitor's rotation axis. The distribution of progenitor masses for the two populations have medians around $2.3\,\rm{M}_\odot$ and $4.9\,\rm{M}_\odot$, corresponding to stars with birth masses of about $10\,\rm{M}_\odot$ and $15\,\rm{M}_\odot$. The second component matches the low-velocity mode observed in isolated pulsars. Combined with the known high-velocity component, which dominates isolated pulsars, this suggests three distinct kick modes. These results reveal previously unrecognized diversity in neutron-star formation.
Forward citations
Cited by 5 Pith papers
-
Pulsar Rockets and Gaia Neutron Star Binaries
The pulsar rocket force is exactly zero in ideal force-free electrodynamics, and Gaia neutron star eccentricities require rockets only for certain pre-supernova binary configurations.
-
On Bimodality in the Eccentricity Distribution of Galactic Double Neutron Stars
A broken neutron-star remnant mass relation plus weak ultra-stripped supernova kicks can reproduce the apparent eccentricity gap in Galactic double neutron stars.
-
The Kick Velocity Distribution of Isolated Neutron Stars
Using 48 young pulsars with parallax distances, the authors infer a log-normal natal kick distribution with μ=5.60, σ=0.68, peaking at 150 to 200 km/s, and claim Hobbs et al. (2005) missed a Jacobian correction.
-
Natal kick by early-asymmetrical pairs of jets to the neutron star of supernova remnant S147
Two close-in-time episodes of unequal, opposite jets, not a single jet pair, can explain the bipolar ears and the ~570 km/s kick of the neutron star in remnant S147.
-
Progenitor models of supernovae interacting with their binary companions
Binary interaction shapes most core-collapse supernova progenitors; late mass-transfer makes a few percent interacting SNe, and 3–27% of H-poor SNe may show periodic compact-object–companion interaction.
Discussion (0). Sign in to comment.