2011ApJ...732L...1K

Query : 2011ApJ...732L...1K

2011ApJ...732L...1K - Astrophys. J., 732, L1 (2011/May-1)

Arecibo PALFA survey and Einstein@Home: binary pulsar discovery by volunteer computing.

KNISPEL B., LAZARUS P., ALLEN B., ANDERSON D., AULBERT C., BHAT N.D.R., BOCK O., BOGDANOV S., BRAZIER A., CAMILO F., CHATTERJEE S., CORDES J.M., CRAWFORD F., DENEVA J.S., DESVIGNES G., FEHRMANN H., FREIRE P.C.C., HAMMER D., HESSELS J.W.T., JENET F.A., KASPI V.M., KRAMER M., VAN LEEUWEN J., LORIMER D.R., LYNE A.G., MACHENSCHALK B., McLAUGHLIN M.A., MESSENGER C., NICE D.J., PAPA M.A., PLETSCH H.J., PRIX R., RANSOM S.M., SIEMENS X., STAIRS I.H., STAPPERS B.W., STOVALL K. and VENKATARAMAN A.

Abstract (from CDS):

We report the discovery of the 20.7 ms binary pulsar J1952+2630, made using the distributed computing project Einstein@Home in Pulsar ALFA survey observations with the Arecibo telescope. Follow-up observations with the Arecibo telescope confirm the binary nature of the system. We obtain a circular orbital solution with an orbital period of 9.4 hr, a projected orbital radius of 2.8 lt-s, and a mass function of f = 0.15 M☉ by analysis of spin period measurements. No evidence of orbital eccentricity is apparent; we set a 2σ upper limit e ≲ 1.7x10–3. The orbital parameters suggest a massive white dwarf companion with a minimum mass of 0.95 M☉, assuming a pulsar mass of 1.4 M☉. Most likely, this pulsar belongs to the rare class of intermediate-mass binary pulsars. Future timing observations will aim to determine the parameters of this system further, measure relativistic effects, and elucidate the nature of the companion star.

Abstract Copyright: ∼

Journal keyword(s): pulsars: general - pulsars: individual: J1952+2630 - stars: neutron - white dwarfs

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 J1952+2630 Psr 19 52.6 +26 30           ~ 44 0

Query : 2011ApJ...732L...1K

Basic data :
PSR J1952+2630 -- Pulsar
Other object types: otypes_help 		gam (2024ApJS,4FGL,...), Psr (PSR)
ICRS coord. (ep=J2000) : 		19 52 36.0 +26 30 00 [ ] D 2011ApJ...732L...1K
FK4 coord. (ep=B1950 eq=1950) : 		19 50 31.6 +26 22 11 [ ]
Gal coord. (ep=J2000) : 		063.2458 -00.3772 [ ]
Proper motions mas/yr : 		-6 0 [2 3 ] ~ 2014MNRAS.437.1485L
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Identifiers (4) :
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PSR J1952+2630 4FGL J1951.6+2621 3HWC J1951+266 1LHAASO J1951+2608

References (44 between 1850 and 2026) (Total 44)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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