2001MNRAS.322..486B

Query : 2001MNRAS.322..486B

2001MNRAS.322..486B - Mon. Not. R. Astron. Soc., 322, 486-498 (2001/April-2)

The HI Parkes All Sky Survey: southern observations, calibration and robust imaging.

BARNES D.G., STAVELEY-SMITH L., DE BLOK W.J.G., OOSTERLOO T., STEWART I.M., WRIGHT A.E., BANKS G.D., BHATHAL R., BOYCE P.J., CALABRETTA M.R., DISNEY M.J., DRINKWATER M.J., EKERS R.D., FREEMAN K.C., GIBSON B.K., GREEN A.J., HAYNES R.F., TE LINTEL HEKKERT P., HENNING P.A., JERJEN H., JURASZEK S., KESTEVEN M.J., KILBORN V.A., KNEZEK P.M., KORIBALSKI B., KRAAN-KORTEWEG R.C., MALIN D.F., MARQUARDING M., MINCHIN R.F., MOULD J.R., PRICE R.M., PUTMAN M.E., RYDER S.D., SADLER E.M., SCHROEDER A., STOOTMAN F., WEBSTER R.L., WILSON W.E. and YE T.

Abstract (from CDS):

The acquisition of Hi Parkes All Sky Survey (HIPASS) southern sky data commenced at the Australia Telescope National Facility's Parkes 64-m telescope in 1997 February, and was completed in 2000 March. HIPASS is the deepest Hi survey yet of the sky south of declination +2°, and is sensitive to emission out to 170 h 75 -1Mpc. The characteristic root mean square noise in the survey images is 13.3mJy. This paper describes the survey observations, which comprise 23020 eight-degree scans of 9-min duration, and details the techniques used to calibrate and image the data. The processing algorithms are successfully designed to be statistically robust to the presence of interference signals, and are particular to imaging point (or nearly point) sources. Specifically, a major improvement in image quality is obtained by designing a median-gridding algorithm which uses the median estimator in place of the mean estimator.

Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): instrumentation: detectors - methods: observational - methods: statistical - techniques: image processing - surveys - radio lines: galaxies

Simbad objects: 11

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Number of rows : 11
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 NGC 45 Sy2 00 14 04.0072128696 -23 10 55.132646808 11.92 11.21 10.73 10.58 10.4 ~ 269 1
2 NGC 55 rG 00 14 53.602 -39 11 47.86 8.54 8.58 7.87 7.84   ~ 828 2
3 NGC 247 LSB 00 47 08.554 -20 45 37.44 10.11 9.61 9.10 8.87   ~ 480 2
4 NGC 253 SyG 00 47 33.134 -25 17 19.68   8.03   6.94 8.1 ~ 3588 2
5 NGC 300 GiG 00 54 53.4465638304 -37 41 03.168402396 8.83 8.69 8.13 7.46   ~ 1614 2
6 MCG-02-24-007 LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1077 1
7 ESO 214-17 AG? 10 40 18.8625655656 -48 33 55.477947312   11.9   12.0 11.9 ~ 22 0
8 ESO 264-35 AG? 10 42 50.49 -47 37 03.5   14.05   13.00 13.9 ~ 20 0
9 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
10 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1332 2
11 NGC 7793 GiG 23 57 49.7540045856 -32 35 27.701550744 10.26 9.74 9.28 9.06 9.7 ~ 1188 2

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