J/AJ/140/1093 NGC7332/7339 and NGC 1156 HI sources from AGES (Minchin+, 2010)
The Arecibo Galaxy Environment Survey.
III. Observations toward the galaxy pair NGC 7332/7339 and the
isolated galaxy NGC 1156.
Minchin R.F., Momjian E., Auld R., Davies J.I., Valls-Gabaud D.,
Karachentsev I.D., Henning P.A., O'Neil K.L., Schneider S., Smith M.W.L.,
Stage M.D., Taylor R., Van Driel W.
<Astron. J., 140, 1093-1118 (2010)>
=2010AJ....140.1093M 2010AJ....140.1093M
ADC_Keywords: Surveys ; Clusters, galaxy ; Radio sources ; H I data
Keywords: galaxies: individual (NGC 7332, NGC 7339) - radio lines: galaxies -
surveys
Abstract:
Two 5deg2 regions around the NGC 7332/9 galaxy pair and the isolated
galaxy NGC 1156 have been mapped in the 21cm line of neutral hydrogen
(HI) with the Arecibo L-band Feed Array out to a redshift of ∼0.065
(∼20000km/s) as part of the Arecibo Galaxy Environment Survey. One of
the aims of this survey is to investigate the environment of galaxies
by identifying dwarf companions and interaction remnants; both of
these areas provide the potential for such discoveries. The neutral
hydrogen observations were complemented by optical and radio follow-up
observations with a number of telescopes. A total of 87 galaxies were
found, of which 39 (45%) were previously catalogued and 15 (17%) have
prior redshifts. Two dwarf galaxies have been discovered in the
NGC 7332 group and a single dwarf galaxy in the vicinity of NGC 1156.
A parallel optical search of the area revealed one further possible
dwarf galaxy near NGC 7332.
Description:
The HI survey observations of the NGC 1156 region were carried out
using the 305m telescope at Arecibo Observatory between 2005
December and 2006 February and those of the NGC 7332 region between
2006 July and September. Both sets of observations used the Arecibo
L-band Feed Array multibeam system and the fixed-azimuth drift
observing mode to reach an integration time of around 300s/point.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 96 87 HI properties of the AGES galaxies in the
NGC 7332 and NGC 1156 regions
table6.dat 104 88 Optical identifications of galaxies in the
NGC 1156 and NGC 7332 fields
notes.dat 80 35 Individual notes
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See also:
J/MNRAS/383/1519 : Abell 1367 HI sources from AGES (Cortese+, 2008)
J/MNRAS/415/1883 : NGC 7448 HI sources from AGES (Davies+, 2011)
http://www.naic.edu/~ages/public_data.html : AGES databases
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [AGES]
6- 19 A14 --- AGES AGES designation (JHHMMSS+DDMMSS)
21- 22 I2 h RAh HI Right ascension (J2000)
24- 25 I2 min RAm HI Right ascension (J2000)
27- 30 F4.1 s RAs HI Right ascension (J2000)
32- 34 F3.1 s e_RAs rms uncertainty on RA
36 A1 --- DE- HI Declination sign (J2000)
37- 38 I2 deg DEd HI Declination (J2000)
40- 41 I2 arcmin DEm HI Declination (J2000)
43- 44 I2 arcsec DEs HI Declination (J2000)
46- 47 I2 arcsec e_DEs rms uncertainty on Declination
49- 53 I5 km/s HV Heliocentric velocity (1)
55- 56 I2 km/s e_HV rms uncertainty on HV
58- 60 I3 km/s W50 Velocity width of the source line profile
measured at the 50% level of peak maximum (2)
62- 63 I2 km/s e_W50 rms uncertainty on W50
65- 67 I3 km/s W20 Velocity width of the source line profile
measured at the 20% level of peak maximum (2)
69- 70 I2 km/s e_W20 rms uncertainty on W20
72- 76 F5.1 mJy Fpeak Peak flux density at 21cm
78- 81 F4.1 mJy e_Fpeak rms uncertainty on Fpeak
83- 88 F6.3 Jy.km/s Ftot Total (integrated) flux at 21cm
90- 94 F5.3 Jy.km/s e_Ftot rms uncertainty on Ftot
96 I1 --- Flag [0/3] Detection confidence (0/1=good) (3)
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Note (1): Measured as the mid-point of the H i profile at 50% of the peak flux.
Note (2): The velocity widths are not corrected for instrumental broadening,
turbulent motions, disc inclination or cosmological effects.
Note (3): Object flags, defined as follows:
0 = source securely detected in the survey data
1 = source confirmed by follow-up observations
2 = source contaminated by RFI (none of the sources in the regions
reported in this paper have this flag)
3 = marks extended sources, measured as described in Section 2.1.
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- AGES AGES designation (JHHMMSS+DDMMSS)
15 A1 --- n_AGES Note, in notes.dat file
17- 18 I2 h RAh Optical Right ascension (J2000)
20- 21 I2 min RAm Optical Right ascension (J2000)
23- 27 F5.2 s RAs Optical Right ascension (J2000)
29 A1 --- DE- Optical Declination sign (J2000)
30- 31 I2 deg DEd Optical Declination (J2000)
33- 34 I2 arcmin DEm Optical Declination (J2000)
36- 39 F4.1 arcsec DEs Optical Declination (J2000)
41- 45 F5.2 s DRA Offset in right ascension, HI-optical
47- 51 F5.1 arcsec DDE Offset in declination, HI-optical
53- 57 F5.2 mag BJmag ?=- SuperCOSMOS BJ magnitude
59- 63 F5.2 mag Rmag ?=- SuperCOSMOS R magnitude
65- 69 F5.2 Msun/Lsun MHI/LB HI mass to BJ luminosity ratio
71- 74 F4.2 Msun/Lsun e_MHI/LB rms uncertainty on MHI/LB
76- 98 A23 --- Name Literature Name
100-104 I5 km/s RV ? Radial velocity from NED database
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1 A1 --- Note Note code
3- 80 A78 --- Text Text of the note
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History:
From electronic version of the journal
References:
Auld et al., Paper I, 2006MNRAS.371.1617A 2006MNRAS.371.1617A
Cortese et al., Paper II, 2008MNRAS.383.1519C 2008MNRAS.383.1519C, Cat. J/MNRAS/383/1519
Davies et al., Paper IV, 2011MNRAS.415.1883D 2011MNRAS.415.1883D, Cat. J/MNRAS/415/1883
(End) Patricia Vannier [CDS] 15-Mar-2012