2013ApJ...773...91A


Query : 2013ApJ...773...91A

2013ApJ...773...91A - Astrophys. J., 773, 91 (2013/August-3)

The Einstein@Home search for radio pulsars and PSR J2007+2722 discovery.

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

Abstract (from CDS):

Einstein@Home aggregates the computer power of hundreds of thousands of volunteers from 193 countries, to search for new neutron stars using data from electromagnetic and gravitational-wave detectors. This paper presents a detailed description of the search for new radio pulsars using Pulsar ALFA survey data from the Arecibo Observatory. The enormous computing power allows this search to cover a new region of parameter space; it can detect pulsars in binary systems with orbital periods as short as 11 minutes. We also describe the first Einstein@Home discovery, the 40.8 Hz isolated pulsar PSR J2007+2722, and provide a full timing model. PSR J2007+2722's pulse profile is remarkably wide with emission over almost the entire spin period. This neutron star is most likely a disrupted recycled pulsar, about as old as its characteristic spin-down age of 404 Myr. However, there is a small chance that it was born recently, with a low magnetic field. If so, upper limits on the X-ray flux suggest but cannot prove that PSR J2007+2722 is at least ∼100 kyr old. In the future, we expect that the massive computing power provided by volunteers should enable many additional radio pulsar discoveries.

Abstract Copyright:

Journal keyword(s): binaries: close - gravitational waves - methods: data analysis - pulsars: general - pulsars: individual: PSR J2007+2722 - surveys

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 7970 * 01 18 38.7751779544 -33 11 20.451013020   10.53 9.07     K3/4III 8 0
2 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2606 2
3 PSR J0737-3039 Psr 07 37 51.248 -30 39 40.83           ~ 380 1
4 3C 190 QSO 08 01 33.5526629491 +14 14 42.815302770   21.07 20.26 18.972   ~ 223 2
5 CPD-63 2495 HXB 13 02 47.6541729594 -63 50 08.625922862 10.34 10.72 9.98 10.03   O9.5Ve 701 0
6 NAME Galactic Center gam 17 45 39.60213 -29 00 22.0000           ~ 12321 0
7 PSR J1821+0155 Psr 18 21 38.88368 +01 55 21.9930           ~ 5 0
8 X Sgr X-4 LXB 18 23 40.57 -30 21 40.6   19.06 18.81     ~ 925 1
9 PSR J1915+1606 Psr 19 15 27.99999 +16 06 27.4034     22.5     ~ 939 1
10 PSR J1952+2630 Psr 19 52.6 +26 30           ~ 18 0
11 PSR J2007+2722 Psr 20 07.0 +27 22           ~ 13 0
12 IRAS 20050+2720 Y*O 20 07 06.549 +27 28 49.10           ~ 100 0
13 NAME IRAS 20050+2720 Cluster Cl* 20 07 06.7 +27 28 53           ~ 83 0
14 NVSS J200715+272243 Rad 20 07 15.86 +27 22 43.5           ~ 1 0
15 PSR J2129+1209C Psr 21 30 01.2030 +12 10 38.159           ~ 175 2

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2021.08.06-05:08:31

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