J/MNRAS/346/787 HIDEEP survey (Minchin+, 2003)
HIDEEP - an extragalactic blind survey for very low column-density neutral
hydrogen.
Minchin R.F., Disney M.J., Boyce P.J., De Blok W.J.G., Parker Q.A.,
Banks G.D., Freeman K.C., Garcia D.A., Gibson B.K., Grossi M., Haynes R.F.,
Knezek P.M., Lang R.H., Malin D.F., Price R.M., Stewart I.M., Wright A.E.
<Mon. Not. R. Astron. Soc., 346, 787-802 (2003)>
=2003MNRAS.346..787M 2003MNRAS.346..787M
ADC_Keywords: Surveys ; Galaxies, radio ; H I data ; Radial velocities
Keywords: surveys - galaxies: distances and redshifts - radio lines: galaxies
Abstract:
We have carried out an extremely long integration time (9000s/beam)
21-cm blind survey of 60deg2 in Centaurus using the Parkes multibeam
system. We find that the noise continues to fall as sqrt(tobs)
throughout, enabling us to reach an H I column-density limit of
4.2x1018cm-2 for galaxies with a velocity width of 200km/s in the
central 32deg2 region, making this the deepest survey to date in
terms of column density sensitivity. The H I data are complemented by
very deep optical observations from digital stacking of multi-exposure
UK Schmidt Telescope R-band films, which reach an isophotal level of
26.5Rmag/arcsec2 (27.5Bmag/arcsec2). 173 H I sources have been
found, 96 of which have been uniquely identified with optical
counterparts in the overlap area.
Description:
HIDEEP was carried out in a region of Centaurus centred on
RA=13h40m00s, DE=30°00'00" (J2000) with 1024 spectral channels
covering 1280 to 12700km/s. As a result of the shape of the Parkes
multibeam footprint, the survey has a sensitivity as good as or better
than HIPASS over 6x10deg2 with a uniform sensitivity over the central
4x8deg2 area. This region lies in the supergalactic plane, 30° from
the galactic plane. The HIDEEP volume includes the Cen A group (Banks
et al., 1999ApJ...524..612B 1999ApJ...524..612B) and the outer parts of the Centaurus
cluster. The observations were carried out in the southern autumns of
1997, 1998, 1999 and 2000.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 102 173 H I properties of HIDEEP galaxies
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See also:
VIII/73 : HI Parkes All Sky Survey Catalogue (HIPASS) (Meyer+, 2004)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- --- [HIDEEP]
8- 18 A11 --- HIDEEP HIDEEP designation (JHHMM-DDMMA)
20- 21 I2 h RAh Right ascension (J2000)
23- 24 I2 min RAm Right ascension (J2000)
26- 29 F4.1 s RAs Right ascension (J2000)
31 A1 --- DE- Declination sign (J2000)
32- 33 I2 deg DEd Declination (J2000)
35- 36 I2 arcmin DEm Declination (J2000)
38- 39 I2 arcsec DEs Declination (J2000)
41- 44 F4.1 mJy sigma Noise per channel per beam
46- 51 F6.1 Jy.km/s FHI HI integrated flux
53- 57 F5.1 Jy.km/s e_FHI rms uncertainty on FHI
59- 62 I4 mJy Speak Peak flux
64- 68 I5 km/s HRV Systemic heliocentric velocity
72- 74 I3 km/s DV20 Velocity width at 20% of the peak flux
77- 81 F5.1 Mpc Dist Distance
83- 89 F7.3 10+8solMass MHI HI mass
91- 96 F6.3 10+8solMass e_MHI rms uncertainty on MHI
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History:
Prepared from Electronic Version.
(End) James Marcout, Patricia Vannier [CDS] 15-Jan-2004