2019A&A...627A.134A

Query : 2019A&A...627A.134A

2019A&A...627A.134A - Astronomy and Astrophysics, volume 627A134-134 (2019/7-1)

Unified radio interferometric calibration and imaging with joint uncertainty quantification.

ARRAS P., FRANK P., LEIKE R., WESTERMANN R. and ENSSLIN T.A.

Abstract (from CDS):

The data reduction procedure for radio interferometers can be viewed as a combined calibration and imaging problem. We present an algorithm that unifies cross-calibration, self-calibration, and imaging. Because it is a Bayesian method, this algorithm not only calculates an estimate of the sky brightness distribution, but also provides an estimate of the joint uncertainty which entails both the uncertainty of the calibration and that of the actual observation. The algorithm is formulated in the language of information field theory and uses Metric Gaussian Variational Inference (MGVI) as the underlying statistical method. So far only direction-independent antenna-based calibration is considered. This restriction may be released in future work. An implementation of the algorithm is contributed as well.

Abstract Copyright: © P. Arras et al. 2019

Journal keyword(s): techniques: interferometric - methods: statistical - methods: data analysis - instrumentation: interferometers

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	NAME Lupus SN	SNR	15 02 22.1	-42 05 49						~	1407	1

Query : 2019A&A...627A.134A

Basic data :

NAME Lupus SN -- SuperNova Remnant
Other object types:	`X (1E,1ES,...)`, `SNR (2009BASI,AJG,...)`, `Rad (GRS,MRC,...)`, `SN* (SN)`, `gam (TeV)`
ICRS coord. (ep=J2000) :	`15 02 22.1 -42 05 49 [ 3000 3000 90 ] D 1990PKS...C......0W`
FK4 coord. (ep=B1950 eq=1950) :	`14 59 05.6 -41 54 02 [ 3000 3000 90 ]`
Gal coord. (ep=J2000) :	`327.4109 +14.4674 [ 3000 3000 90 ]`
Angular size (arcmin):	`30.0 30.0 90 (Rad) D` `2014BASI...42...47G`

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`NAME Lupus SN`	`H 1506-42`	`PKS 1459-419`	`SN 1006`
`AJG 37`	`KOHX 1`	`PKS J1502-4205`	`TeV J1502-419`
`1E 1459.6-4146`	`1M 1457-416`	`SNR G327.6+14.6`	`2U 1440-39`
`1ES 1500-41.5`	`MRC 1459-417`	`SNR G327.6+14.5`	`3U 1439-39`
`GRS G327.60 +14.60`	`MSH 14-4-15`	`SN 1006A`	`4U 1458-41`
`1H 1458-416`	`PKS 1459-41`	`SN 1016`	`XSS J15031-4149`

References (1407 between 1850 and 2026) (Total 1407)
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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Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : NAME Lupus SN

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PKS 1459-41 PKS 1459-419 PKS J1502-4205

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