2020RNAAS...4...65F

Query : 2020RNAAS...4...65F

2020RNAAS...4...65F - Research Notes of the AAS, 4, 65 (2020/May-0)

A Population-Informed Mass Estimate for Pulsar J0740+6620.

FARR W.M. and CHATZIIOANNOU K.

Abstract (from CDS):

Galactic double neutron star systems have a tight mass distribution around ∼1.35M⊙, but the mass distribution of all known pulsars is broader (Tauris et al. ). Here we reconstruct the Alsing et al. (), Antoniadis et al. () bimodal mass distribution of pulsars observed in binary systems, incorporating data from observations of J0740+6620 which were not available at the time of those works. Because J0740+6620 is an outlier in the mass distribution with non-negligible uncertainty in its mass measurement, its mass receives a large correction from the population, becoming ${m}_{{\rm{J}}0740+6620}={2.03}_{-0.08}^{+0.10}\,{M}_{\odot }$ (median and 68% CI). Stochastic samples from our population model, including population-informed pulsar mass estimates, are available at https://github.com/farr/AlsingNSMassReplication and archived at Farr & Chatziioannou ().

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Neutron stars

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 PSR J0740+6620 Psr 07 40 45.799 +66 20 33.60           ~ 395 0

Query : 2020RNAAS...4...65F

Basic data :
PSR J0740+6620 -- Pulsar
Other object types: otypes_help 		gam (3FGL,4FGL,...), Psr (2022ApJS,PSR), BL? (2021MNRAS)
ICRS coord. (ep=J2000) : 		07 40 45.799 +66 20 33.60 (Radio) [ ] C 2018ApJ...859...93L
FK4 coord. (ep=B1950 eq=1950) : 		07 35 53.012 +66 27 30.42 [ ]
Gal coord. (ep=J2000) : 		149.729709 +29.599376 [ ]
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Identifiers (5) :
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PSR J0742+6620 4FGL J0741.0+6618 PSR J0740+6620
3FGL J0740.8+6621 FL8Y J0741.0+6618

References (395 between 1850 and 2026) (Total 395)
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