2015ApJ...805..156S

Query : 2015ApJ...805..156S

2015ApJ...805..156S - Astrophys. J., 805, 156 (2015/June-1)

PSR J1930-1852: a pulsar in the widest known orbit around another neutron star.

SWIGGUM J.K., ROSEN R., McLAUGHLIN M.A., LORIMER D.R., HEATHERLY S., LYNCH R., SCOLES S., HOCKETT T., FILIK E., MARLOWE J.A., BARLOW B.N., WEAVER M., HILZENDEGER M., ERNST S., CROWLEY R., STONE E., MILLER B., NUNEZ R., TREVINO G., DOEHLER M., CRAMER A., YENCSIK D., THORLEY J., ANDREWS R., LAWS A., WENGER K., TETER L., SNYDER T., DITTMANN A., GRAY S., CARTER M., McGOUGH C., DYDIW S., PRUETT C., FINK J. and VANDERHOUT A.

Abstract (from CDS):

In the summer of 2012, during a Pulsar Search Collaboratory workshop, two high-school students discovered J1930-1852, a pulsar in a double neutron star (DNS) system. Most DNS systems are characterized by short orbital periods, rapid spin periods, and eccentric orbits. However, J1930-1852 has the longest spin period (Pspin ∼ 185 ms) and orbital period (Pb ∼ 45 days) yet measured among known, recycled pulsars in DNS systems, implying a shorter than average and/or inefficient recycling period before its companion went supernova. We measure the relativistic advance of periastron for J1930-1852, ω = 0.00078 (4) deg/yr, which implies a total mass (Mtot = 2.59 (4) M☉) consistent with other DNS systems. The 2σ constraints on Mtot place limits on the pulsar and companion masses (mp < 1.32M☉ and mc > 1.30 M☉ respectively). J1930-1852's spin and orbital parameters challenge current DNS population models and make J1930-1852 an important system for further investigation.

Abstract Copyright: ∼

Journal keyword(s): pulsars: general - pulsars: individual: J1930-1852 - stars: evolution - stars: neutron

Simbad objects: 14

goto Full paper

goto View the references in ADS

Number of rows : 14
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 J0453+16 Psr 04 53 38 +16 01.0           ~ 3 0
2 PSR J0737-3039A Psr 07 37 51.24669 -30 39 40.6895           ~ 317 1
3 PSR J0737-3039 Psr 07 37 51.248 -30 39 40.83           ~ 445 1
4 PSR J0737-3039B Psr 07 37 51.24927 -30 39 40.7195           ~ 222 1
5 PSR J1518+4904 Psr 15 18 16.832 +49 04 34.19           ~ 201 1
6 PSR B1534+11 Psr 15 37 09.9603 +11 55 55.554           ~ 453 1
7 PSR J1753-2240 Psr 17 53 39.847 -22 40 42.00           ~ 53 1
8 PSR J1756-2251 Psr 17 56 46.63 -22 51 59.4           ~ 153 1
9 PSR B1809-17.6 Psr 18 11 55.034 -17 36 37.70           ~ 114 1
10 PSR J1829+2456 Psr 18 29 34.6668 +24 56 18.193           ~ 89 1
11 PSR J1906+0749 Psr 19 06 48.67 +07 46 28.6           ~ 172 1
12 PSR J1915+1606 Psr 19 15 27.99999 +16 06 27.4034     22.5     ~ 1032 1
13 PSR J1930+1852 Psr 19 30 30.13 +18 52 14.1           ~ 110 1
14 PSR J2129+1209C Psr 21 30 01.2030 +12 10 38.159           ~ 215 2

To bookmark this query, right click on this link: simbad:objects in 2015ApJ...805..156S and select 'bookmark this link' or equivalent in the popup menu