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J/A+A/325/473       HCG HI-deficiency (Huchtmeier 1997)

HI-deficiency in Hickson compact groups of galaxies Huchtmeier W.K. <Astron. Astrophys. 325, 473 (1997)> =1997A&A...325..473H
ADC_Keywords: Clusters, galaxy ; Radio lines Keywords: galaxies: clusters - galaxies: interstellar matter Abstract: We present HI observations of 54 Hickson Compact Groups (HCG) of which 41 have been detected in the 21-cm line of neutral hydrogen. For 13 objects upper limits have been obtained. The integrated MHI/LB values of the observed HCGs scatter over a large range of values showing strong HI-deficiencies for a great number of objects. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1 96 58 Observational data table2 65 75 *Global parameters of Hickson compact groups of galaxies (Cat. VII/85) tables.tex 81 325 LaTeX version of the tables
Note to table2: Derived global parameter for the combined sample of HCGs (i.e. data from Williams and Rood (1987ApJS...63..265W) and from table1 See also: VII/85 : Hickson Compact Groups of Galaxies (Hickson 1982) Byte-by-byte Description of file: table1
Bytes Format Units Label Explanations
1- 2 I2 --- HCG HCG number (1) 3 A1 --- m_HCG Multiplicity index on HCG 5- 6 I2 h RAh Right ascension (1950.0) 8- 9 I2 min RAm Right ascension (1950.0) 11- 12 I2 s RAs Right ascension (1950.0) 14 A1 --- DE- Declination sign 15- 16 I2 deg DEd Declination (1950.0) 18- 19 I2 arcmin DEm Declination (1950.0) 21- 22 I2 arcsec DEs Declination (1950.0) 24- 29 F6.4 --- z Optical redshift 31 I1 --- Nspir ? Total number of spiral galaxies (2) 33 I1 --- Ngal ? Total number of galaxies (2) 35- 39 F5.2 10+10solLum LB Blue luminosity (3) 41- 45 F5.2 Jy.km/s SHI ? Measured HI flux 46 A1 --- u_SHI Uncertainty flag on SHI 48- 52 F5.1 mJy Peak ? Observed peak of the line (4) 54- 56 F3.1 mJy e_Peak rms uncertainty on Peak 58- 62 I5 km/s HRVHI ? HI heliocentric radial velocity (5) 64- 67 F4.1 km/s e_HRVHI ? rms uncertainty on HRVHI 69- 72 I4 km/s LW50 ? Linewidth at a level of 50% of line peak 73 A1 --- u_LW50 Uncertainty flag on LW50 75- 78 I4 km/s LW25 ? Linewidth at a level of 25% of line peak 79 A1 --- u_LW25 Uncertainty flag on LW25 81- 84 I4 km/s LW20 ? Linewidth at a level of 20% of line peak 85 A1 --- u_LW20 Uncertainty flag on LW20 87- 88 A2 --- l_MHI/LB [≤] Limit flag on MHI/LB 89- 93 F5.3 Sun MHI/LB Relative HI-content MHI/LB of the group
Note (1): Individual notes: HCG4 b and a: HI-data for the profiles at the optical velocities of components b and a HCG14 c and a: HI-data for the profiles at the optical velocities of components c and a HCG22, HCG42 and HCG68: data from Huchtmeier (1994A&A...286..389H) HCG41, HCG78: HI data correspond to individual galaxies in the velocity range searched Note (2): Total numbers in the brightest three magnitudes Note (3): Integrated blue luminosity of all member galaxies later than type E within the velocity interval searched for HI Note (4): For non-detections, only the rms noise is shown Note (5): Velocity derived from the midpoint of the line at 25% and 20% of the peak
Byte-by-byte Description of file: table2
Bytes Format Units Label Explanations
1- 3 I3 --- HCG HCG number (1) 5- 6 I2 h RAh Right ascension (1950.0) 8- 9 I2 min RAm Right ascension (1950.0) 11- 12 I2 s RAs Right ascension (1950.0) 14 A1 --- DE- Declination sign 15- 16 I2 deg DEd Declination (1950.0) 18- 19 I2 arcmin DEm Declination (1950.0) 21- 22 I2 arcsec DEs Declination (1950.0) 24- 29 F6.4 --- z Optical redshift 31- 35 I5 km/s HRVHI ? HI heliocentric radial velocity 37- 39 I3 Mpc Dist Assumed distance 41- 45 F5.2 10+10solLum LB Blue luminosity (2) 47- 48 A2 --- l_MHI [≤] Limit flag on HI mass 49- 53 F5.2 10+9solMass MHI Total HI mass 55- 56 A2 --- l_MHI/LB [≤] Limit flag on MHI/LB 57- 61 F5.3 Sun MHI/LB HI mass to blue luminosity ratio
Note (1): Individual notes: HCG22, HCG42 and HCG68: data from Huchtmeier (1994A&A...286..389H) HCG41, HCG78: HI data correspond to individual galaxies in the velocity range searched Note (2): Blue luminosity of all group members later than than type E within the velocity interval of the HI observations
Acknowledgements: Walter Huchtmeier
(End) Patricia Bauer [CDS] 24-Apr-1997
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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