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J/AJ/139/2130       ALFA-ZOA precursor observation           (Henning+, 2010)

The Arecibo L-band Feed Array Zone Of Avoidance survey. I. Precursor observations through the inner and outer Galaxy. Henning P.A., Springob C.M., Minchin R.F., Momjian E., Catinella B., McIntyre T., Day F., Muller E., Koribalski B., Rosenberg J.L., Schneider S., Staveley-Smith L., van Driel W. <Astron. J., 139, 2130-2147 (2010)> =2010AJ....139.2130H
ADC_Keywords: Surveys ; Galaxies, radio ; H I data ; Radial velocities Keywords: galaxies: distances and redshifts - galaxies: fundamental parameters - large-scale structure of universe - surveys Abstract: The Arecibo L-band Feed Array (ALFA) is being used to conduct a low-Galactic latitude survey, to map the distribution of galaxies and large-scale structures behind the Milky Way through detection of galaxies' neutral hydrogen (HI) 21cm emission. This Zone of Avoidance (ZOA) survey finds new HI galaxies which lie hidden behind the Milky Way, and also provides redshifts for partially obscured galaxies known at other wavelengths. Before the commencement of the full survey, two low-latitude precursor regions were observed, totaling 138deg2, with 72 HI galaxies detected. Detections through the inner Galaxy generally have no cataloged counterparts in any other waveband, due to the heavy extinction and stellar confusion. Detections through the outer Galaxy are more likely to have Two Micron All Sky Survey counterparts. We present the results of these precursor observations, including a catalog of the detected galaxies, with their HI parameters. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 94 72 HI galaxy parameters from ALFA ZOA precursor observations table2.dat 119 81 Multiwavelength counterparts in the literature of ALFA ZOA precursor detections
See also: II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986) II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003) VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006) J/A+A/505/29 : HI observations of 2MASS galaxies in ZoA (van Driel+, 2009) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name ALFA ZOA designation (JHHMM+DDMM) 12- 13 I2 h RAh Right ascension (J2000.0) 15- 16 I2 min RAm Right ascension (J2000.0) 18- 19 I2 s RAs Right ascension (J2000.0) 20 A1 --- u_RAs Uncertainty flag on RA 22 A1 --- DE- Declination sign (J2000.0) 23- 24 I2 deg DEd Declination (J2000.0) 26- 27 I2 arcmin DEm Declination (J2000.0) 29- 30 I2 arcsec DEs Declination (J2000.0) 31 A1 --- u_DEs Uncertainty flag on DE 33- 38 F6.2 deg GLON Galactic longitude 39 A1 --- u_GLON Uncertainty flag on GLON 40- 45 F6.2 deg GLAT Galactic latitude 46 A1 --- u_GLAT Uncertainty flag on GLAT 48- 51 F4.1 Jy.km/s FHI ? HI flux integral 53- 55 F3.1 Jy.km/s e_FHI ? rms uncertainty on FHI 57- 61 I5 km/s HV Heliocentric velocity (cz) taken as the midpoint of the profile at the 50% level 63- 64 I2 km/s e_HV ? rms uncertainty on HV 65 A1 --- u_HV Uncertainty flag on HV 66- 69 I4 km/s W50 ? Full velocity width of the HI line measured at the 50% level 71- 72 I2 km/s e_W50 ? rms uncertainty on W50 74- 76 I3 km/s W20 ? Full velocity width of the HI line measured at the 20% level 78- 79 I2 km/s e_W20 ? rms uncertainty on W20 81- 83 I3 Mpc DLG ? Distance to the galaxy (1) 85- 89 F5.2 [Msun] logMHI ? HI mass 91- 94 F4.2 [Msun] e_logMHI ? rms uncertainty on logMHI
Note (1): correcting the velocity to the Local Group frame, VLG=VH+300sin(l)cos(b) and taking H0=71km/s/Mpc.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name ALFA ZOA designation (JHHMM+DDMM) 11 A1 --- n_Name [*] note on name (1) 13- 18 F6.2 deg GLON [-180/180] Galactic longitude 20- 23 F4.1 mag AB Foreground extinction in B band estimated by the IRAS DIRBE maps of Schlegel et al. (1998ApJ...500..525S) 25- 42 A18 ---- HI HI counterpart name (2) 44- 46 F3.1 arcsec SepHI ? Angular separation from HI counterpart (literature - ALFA ZOA) 48- 50 I3 km/s dVHI ? Velocity difference from HI counterpart (literature - ALFA ZOA) 53- 69 A17 --- Opt Optical counterpart name (3) 71- 73 F3.1 arcsec SepOpt ? Angular separation from Optical counterpart (literature - ALFA ZOA) 75- 76 A2 --- --- [2M] 77- 92 A16 --- 2MASS 2MASS counterpart name (HHMMDDdd+DDMMDDd) 94- 96 F3.1 arcsec Sep2M ? Angular separation from 2MASS counterpart (literature - ALFA ZOA) 98-101 A4 --- --- [IRAS] 102-111 A10 --- IRAS IRAS counterpart name (HHMMm+DDMM) 113-115 F3.1 arcsec SepIR ? Angular separation from IRAS counterpart (literature - ALFA ZOA) 117-119 I3 km/s dV ? Velocity difference between the ALFA ZOA source and any non-HI velocity measurement (literature - ALFA ZOA)
Note (1): * indicates that the galaxy lies on an edge of the survey region, so parameters are uncertain Note (2): HIPASSJHHMM+DD, CAPHHMM+DD, ADBSHHMMSS+DDMM, HIZOAJHHMM+DD, ZOAGLLL.ll+BB.bb, aka HIPASSJHHMM+DD, UGCNNNNN, IRASHHMMm+DDMM or 2MHHMMDDdd+DDMMDDd Note (3): PGCNNNNNN, UGCNNNNN or ZOAGLLL.ll+BB.bb
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 30-May-2012
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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