2019ApJ...885L..37Z

Query : 2019ApJ...885L..37Z

2019ApJ...885L..37Z - Astrophys. J., 885, L37-L37 (2019/November-2)

Wide bandwidth observations of pulsars C, D, and J in 47 Tucanae.

ZHANG L., HOBBS G., MANCHESTER R.N., LI D., WANG P., DAI S., WANG J., KACZMAREK J.F., CAMERON A.D., TOOMEY L., ZHU W., ZHI Q., MIAO C., YUAN M., ZHANG S. and TAO Z.

Abstract (from CDS):

We report the first wide-band observations of pulsars C, D, and J in the globular cluster 47 Tucanae (NGC 104) using the Ultra-Wideband Low (UWL) receiver system recently installed on the Parkes 64 m radio telescope. The wide frequency range of the UWL receiver (704-4032 MHz), along with the well-calibrated system, allowed us to obtain flux density measurements and polarization pulse profiles. The mean pulse profiles have significant linear and circular polarization, allowing for determination of the Faraday rotation measure for each pulsar. Precise measurements of the dispersion measures show a significant deviation in the value for pulsar D compared to earlier results. Searches for new pulsars in the cluster are ongoing and we have determined optimal bands for such searches using the Parkes UWL receiver system.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): Globular star clusters - Radio continuum emission - Pulsars

Simbad objects: 6

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Number of rows : 6
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 J0024-7204C Psr 00 23 50.371 -72 04 31.44           ~ 65 1
2 PSR J0023-7203J Psr 00 23 59.40735 -72 03 58.7914           ~ 91 1
3 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
4 PSR J0024-72D Psr 00 24 13.818 -72 04 43.83           ~ 62 1
5 PSR J0437-47 Psr 04 37 15.7994581776 -47 15 08.544351636           DC 1032 0
6 MCG-02-24-007 LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1077 1

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