2022MNRAS.514.4069J

Query : 2022MNRAS.514.4069J

2022MNRAS.514.4069J - Mon. Not. R. Astron. Soc., 514, 4069-4077 (2022/August-2)

Measuring lens dimensionality in extreme scattering events through wave optics.

JOW D.L. and PEN U.-L.

Abstract (from CDS):

Compact radio sources have been observed to undergo large, frequency-dependent changes in intensity due to lensing by structures in the interstellar medium, in so-called 'extreme scattering events' (ESEs). While the study of astrophysical plasma lensing has primarily focused on the geometric limit of optics, coherent radio sources such as pulsars exhibit wave effects when lensed. The additional phase information provided by interference effects in the wave regime may yield more information about the lens than could be obtained in the geometric regime. In this paper, we show that, using wave effects, one can potentially distinguish a one-dimensional lens (where 'one-dimensional' includes both highly elongated lenses, as well as perfectly axisymmetric lenses) from a fully two-dimensional lens, with minimal assumptions on the form of the lensing potential.

Journal keyword(s): waves - pulsars: general - radio continuum: ISM

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 J1959+2048	Psr	19 59 36.7643141520	+20 48 14.896407996		21.08	20.16	19.53	18.79	G:	854	3

Query : 2022MNRAS.514.4069J

Basic data :

PSR J1959+2048 -- Pulsar

gam (1FGL,2FGL,...), Psr (2022ApJS,PSR), Pl? (2020ApJ), V* (V*), * (Gaia)

19 59 36.7643141520 +20 48 14.896407996 (Optical) [ 0.6353 0.7032 90 ] A 2020yCat.1350....0G

19 57 25.0391949060 +20 40 00.756655463 [ 0.6353 0.7032 90 ]

059.1968896728793 -04.6974899421032 [ 0.6353 0.7032 90 ]

-19.267 -26.560 [1.235 1.244 90] A 2020yCat.1350....0G

1.1878 [1.3556] A 2020yCat.1350....0G

G: E 1992ApJ...400..638A

B 21.08 [0.05] D 2007MNRAS.379.1117R

V 20.16 [0.05] D 2007MNRAS.379.1117R

R 19.53 [0.05] D 2007MNRAS.379.1117R

G 20.172272 [0.024249] C 2020yCat.1350....0G

I 18.79 [0.05] D 2007MNRAS.379.1117R

K 17.8 [0.1] D 2007MNRAS.379.1117R

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`PSR J1959+2048`	`3FGL J1959.5+2047`	`NAME PSR B1957+20 b`	`EQ J195936+204814`
`1FGL J1959.6+2047`	`4FGL J1959.5+2048`	`PSR B1957+20`	`Gaia DR3 1823773960079216896`
`2FGL J1959.5+2047`	`NAME Black Widow`	*`V QX Sge`**	`Gaia DR2 1823773960079216896`

References (854 between 1850 and 2026) (Total 854)
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V* QX Sge Gaia DR3 1823773960079216896 Gaia DR2 1823773960079216896

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