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J/MNRAS/457/2366    Southern ZOA galaxies 21cm HI-line             (Said+, 2016)

NIR Tully-Fisher in the Zone of Avoidance. II. 21 cm H I-line spectra of southern ZOA galaxies. Said K., Kraan-Korteweg R.C., Staveley-Smith L., Williams W.L., Jarrett T.H., Springob C.M. <Mon. Not. R. Astron. Soc., 457, 2366-2376 (2016)> =2016MNRAS.457.2366S (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, radio ; H I data ; Redshifts Keywords: galaxies: distances and redshifts - galaxies: spiral - cosmology: observations - large-scale structure of Universe - infrared: galaxies - radio lines: galaxies Abstract: High-accuracy HI profiles and linewidths are presented for inclined ((b/a)o<0.5) spiral galaxies in the southern Zone of Avoidance (ZOA). These galaxies define a sample for use in the determinations of peculiar velocities using the near-infrared Tully-Fisher (TF) relation. The sample is based on the 394 HI-selected galaxies from the Parkes HI Zone of Avoidance survey (HIZOA). Follow-up narrow-band Parkes HI observations were obtained in 2010 and 2015 for 290 galaxies, while for the further 104 galaxies, sufficiently high signal-to-noise (S/N) spectra were available from the original HIZOA data. All 394 spectra are reduced and parametrized in the same systematic way. Five different types of linewidth measurements were derived, and a Bayesian mixture model was used to derive conversion equations between these five widths. Of the selected and measure galaxies, 342 have adequate signal to noise (S/N≥5) for use in TF distance estimation. The average value of the S/N ratio of the sample is 14.7. We present the HI parameters for these galaxies. The sample will allow a more accurate determination of the flow field in the southern ZOA which bisects dynamically important large-scale structures such as Puppis, the Great Attractor, and the Local Void. Description: Data were collected in 2010 and 2015 using the 21cm MB receiver on the 64-m Parkes Radio Telescope in narrow-band mode, using only the high-efficiency seven inner beams. Beam-switching mode allows one beam ON the source and the other six OFF source, which reduces the noise by a factor of 2. Each target was observed for at least 35 min of ON-source integration time, with the 8MHz bandwidth split into 1024 channels. This results in a velocity resolution of 1.6km/s. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 156 103 HI derived parameters for the good HIZOA profiles (velocity resolution of 27km/s) table3.dat 156 237 HI derived parameters for the narrow-band profiles (velocity resolution of 3.3km/s)
See also: J/AJ/129/220 : HI Parkes Zone of Avoidance Survey (Donley+, 2005) J/AJ/151/52 : The HIZOA-S survey (Staveley-Smith+, 2016) J/MNRAS/462/3386 : Deep NIR catalogue ofHIZOA galaxies (Said+, 2016) Byte-by-byte Description of file: table2.dat table3.dat
Bytes Format Units Label Explanations
1- 9 A9 --- HIZOA HIZOA designation (JHHMM-DDA) (1) 11- 12 I2 h RAh Right ascension (J2000) of the fitted position in HIZOA 14- 15 I2 min RAm Right ascension (J2000) of the fitted position in HIZOA 17- 21 F5.2 s RAs Right ascension (J2000) of the fitted position in HIZOA 23 A1 --- DE- Declination sign (J2000) of the fitted position in HIZOA 24- 25 I2 deg DEd Declination (J2000) of the fitted position in HIZOA 27- 28 I2 arcmin DEm Declination (J2000) of the fitted position in HIZOA 30- 33 F4.1 arcsec DEs Declination (J2000) of the fitted position in HIZOA 35- 42 F8.4 deg GLON Galactic longitude 44- 51 F8.4 deg GLAT Galactic latitude 53- 57 F5.1 Jy.km/s IFHI Integrated HI flux 59- 61 F3.1 Jy.km/s e_IFHI rms uncertainty on IFHI 63- 70 F8.2 km/s HV Heliocentric velocity measured as the mid-point of the 50 per cent of the profile using the WF50 algorithm 72- 76 F5.2 km/s e_HV rms uncertainty on HV 78- 84 F7.3 --- WP20 Linewidth at 20 per cent of the peak flux-rms 86- 91 F6.2 --- e_WP20 rms uncertainty on WP20 93- 98 F6.2 --- WM50 Linewidth at 50 per cent of the mean flux 100-104 F5.2 --- e_WM50 rms uncertainty on WM50 106-111 F6.2 --- WP50 Linewidth at 50 per cent of the peak flux-rms 113-118 F6.2 --- e_WP50 rms uncertainty on WP50 120-125 F6.2 --- WF50 Linewidth at 50 per cent of the peak flux-rms measured with a polynomial fit to both sides of the profile 127-131 F5.2 --- e_WF50 rms uncertainty on WF50 133-138 F6.2 --- W2P50 Linewidth at 50 per cent of the peak flux-rms measured at each of the two peaks 140-144 F5.2 --- e_W2P50 rms uncertainty on W2P50 146-149 F4.1 mJy rms rms noise 151-156 F6.2 --- SNR S/N ratio
Note (1): HIZOA ID as reported in the HIZOA survey publications (Donley et al. 2005, Cat. J/AJ/129/220; Staveley-Smith et al. 2016, Cat. J/AJ/151/52; Kraan-Korteweg et al., in preparation).
History: From electronic version of the journal References: Said et al., Paper I 2015MNRAS.447.1618S Said et al., Paper III 2016MNRAS.462.3386S, Cat. J/MNRAS/462/3386
(End) Patricia Vannier [CDS] 27-Jul-2017
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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