J/A+A/391/887 Redshifts in the Hydra/Antlia Extension (Kraan-Korteweg+, 2002)
Parkes HI observations of galaxies. behind the southern Milky Way.
I. The Hydra/Antlia region (l≃266° to 296°).
Kraan-Korteweg R.C., Henning P.A., Schroeder A.C.
<Astron. Astrophys. 391, 887 (2002)>
=2002A&A...391..887K 2002A&A...391..887K
ADC_Keywords: Galaxy catalogs ; Galaxies, radio ; Radio lines ;
Radial velocities ; Morphology
Keywords: catalogs - surveys - ISM: dust, extinction -
galaxies: fundamental parameters - radio lines: galaxies -
cosmology: large-scale structure of the Universe
Abstract:
As part of our program to map the large-scale distribution of galaxies
behind the Milky Way, we used the Parkes 210 ft (64m) radio telescope
for pointed HI observations of a sample of low surface-brightness (due
to heavy obscuration) spiral galaxies selected from the deep optical
Zone of Avoidance (ZOA) galaxy catalog in the Hydra/Antlia region
(Kraan-Korteweg, 2000, Cat. J/A+AS/141/123). Searching a
simultaneous velocity range of either 300 to 5500km/s or 300 to
10500km/s to an rms level of typically 2-4mJy resulted in detections
in 61 of the 139 pointings, leading to a total of 66 detections (an
additional detection was made in a reference position, and two other
pointings revealed two and four independent signals respectively).
Except for 2 strong HI emitters identified in the shallow Zone of
Avoidance HI survey (Henning et al., 2000AJ....119.2686H 2000AJ....119.2686H), all HI
detections are new.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 134 66 HI-properties of galaxies detected in the
ZOA with the Parkes radio telescope
table2.dat 135 87 Galaxies observed with the Parkes radio telescope
but not detected
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See also:
II/125 : IRAS catalogue of Point Sources, Version 2.0 (IPAC 1986)
J/A+A/297/617 : Hydra/Antlia extension redshifts (Kraan-Korteweg+, 1995)
J/A+AS/127/463 : Crux region redshifts (Fairall+ 1998)
J/A+A/352/39 : Great Attractor region redshifts (Woudt+, 1999)
J/A+AS/141/123 : Galaxies behind Southern Milky Way. (Kraan-Korteweg 2000)
J/A+A/380/441 : Galaxies behind Southern Milky Way. II. (Woudt+, 2001)
J/ApJS/89/57 : IRAS galaxies behind southern Milky Way (Yamada+, 1993)
J/MNRAS/287/472 : Southern Milky Way galaxies velocities (Di Nella+ 1997)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 A3 --- --- [RKK]
4- 7 I4 --- RKK ? Identification as in Kraan-Korteweg, 1995,
Cat. J/A+A/297/617
8 A1 --- n_RKK [BOa] Remark (G1)
10- 17 A8 --- OName Other identification (1)
19 A1 --- IRAS [I] Code for counterpart in IRAS Point Source
Catalog II/125 (G2)
21- 22 I2 h RAh Right ascension (J2000)
24- 25 I2 min RAm Right ascension (J2000)
27- 30 F4.1 s RAs Right ascension (J2000)
32 A1 --- DE- Declination sign (J2000)
33- 34 I2 deg DEd Declination (J2000)
36- 37 I2 arcmin DEm Declination (J2000)
39- 40 I2 arcsec DEs Declination (J2000)
41 A1 --- u_DEs Uncertainty flag on position
43- 48 F6.2 deg GLON Galactic longitude
50- 55 F6.2 deg GLAT Galactic latitude
58- 61 A4 --- MType Morphological type
64- 66 I3 arcsec MajAxis ? Major axis
67 A1 --- --- [x]
68- 70 I3 arcsec MinAxis ? Minor axis
73- 76 F4.1 mag Bmag ? B magnitude estimated from the
IIIaJ ESO/SRC film copy
79- 82 F4.2 mag E(B-V) ? Extinction according to Schlegel et al.,
1998ApJ...500..525S 1998ApJ...500..525S
85- 87 I3 arcsec Diamec ? Extinction-corrected large diameter
90- 93 F4.1 mag Bmagec ? Extinction-corrected magnitude
96-100 I5 km/s HRV Heliocentric HI radial velocity
101 A1 --- u_HRV [*:] Code for uncertainty (1)
103-105 I3 km/s V50% Velocity width at 50%
106 A1 --- u_V50% [*:] Code for uncertainty (1)
108-110 I3 km/s V20% Velocity width at 20%
111 A1 --- u_V20% [*:] Code for uncertainty (1)
113-117 F5.2 Jy.km/s FHI HI flux
118 A1 --- u_FHI [*:] Code for uncertainty (2)
120-123 F4.1 mJy rms rms noise level
126-130 I5 km/s Vel ? Independent velocity determination
132 A1 --- --- [(]
133 A1 --- r_Vel [1-9] Source of individual velocity
determination (G3)
134 A1 --- --- [)]
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Note (1): In three of the pointed observations (RKK1037, RKK1919 and RKK1947)
more than one 21-cm detection was identified within the beam and
covered velocity range. Some of these HI detections do not have an
optical counterpart (INV#). RKK1919B INV1 has no position.
Note (2): Code for uncertainty :
":" for uncertainty value
"*" for slightly underestimated value
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- --- [RKK]
4- 7 I4 --- RKK ? Identification as in Kraan-Korteweg, 1995,
Cat. J/A+A/297/617
8 A1 --- n_RKK [BOa] Remark (G1)
9 A1 --- Note [*] Note (1)
10- 17 A8 --- OName Other identification
19 A1 --- IRAS [IQP] Code for counterpart in IRAS Point
Source Catalog II/125 (G2)
21- 22 I2 h RAh Right ascension (J2000)
24- 25 I2 min RAm Right ascension (J2000)
27- 30 F4.1 s RAs Right ascension (J2000)
32 A1 --- DE- Declination sign (J2000)
33- 34 I2 deg DEd Declination (J2000)
36- 37 I2 arcmin DEm Declination (J2000)
39- 40 I2 arcsec DEs Declination (J2000)
41 A1 --- u_DEs Uncertainty flag on position
43- 48 F6.2 deg GLON Galactic longitude
50- 55 F6.2 deg GLAT Galactic latitude
58- 61 A4 --- MType Morphological type
64- 66 I3 arcsec MajAxis ? Major axis
67 A1 --- --- [x]
68- 70 I3 arcsec MinAxis ? Minor axis
73- 76 F4.1 mag Bmag ? B magnitude estimated from the
IIIaJ ESO/SRC film copy
79- 82 F4.2 mag E(B-V) ? Extinction according to Schlegel et al.,
1998ApJ...500..525S 1998ApJ...500..525S
85- 87 I3 arcsec Diamec ? Extinction-corrected large diameter
90- 93 F4.1 mag Bmagec ? Extinction-corrected magnitude
96- 99 I4 km/s Vlowlim ? Low velocity limit of searched
velocity range
101 A1 --- --- [-]
103-107 I5 km/s Vhighlim ? High velocity limit of searched
velocity range
109-111 F3.1 mJy rms ? rms of searched velocity range
113-117 I5 km/s Vlowend ? Low velocity end of perturbed
velocity interval
118 A1 --- u_Vlowend [)] Uncertainty flag on Vlowend
119 A1 --- --- [-]
121-125 I5 km/s Vhighend ? High velocity end of perturbed
velocity interval
126 A1 --- u_Vhighend [)] Uncertainty flag on Vhighend
127-131 I5 km/s Vel ? Independent velocity determination
133 A1 --- --- [(]
134 A1 --- r_Vel [1-6 M] Source of individual velocity
determination (G3)
135 A1 --- --- [)]
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Note (1): Some of the spectra of the non-detections listed in Table 2 do
reveal a positive signal. Comparing the recession velocities with
independent optical data proves, however, that the observed HI
emission in four of the pointings does not originate from the targeted
object but from a neighbour at close angular distance. An "*"
indicates these HI emissions.
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Global notes:
Note (G1): Remarks:
The B and O are indications that they were detected at the position of
that galaxy with the name before it, where
B means that it was a second detection in the same HI profile;
O it was detected first as a negative signal due to OFF observation
(10.5arcmin earlier in RA) of the originally observed object;
a means indicates that the Parkes telescope was actually not pointed
towards the galaxy listed in Table 1 but towards another galaxy at
small angular separation, hence the HI flux could be slightly
underestimated (indicated later on with a * in the columns of the
HI properties).
Note (G2): Code for counterpart in IRAS PSC:
I: certain identification
P: possible identification
Q: questionable
See Kraan-Korteweg, 2000, Cat. J/A+AS/141/123 for more details.
Note (G3): Source of individual velocity determination:
1: Kraan-Korteweg et al., 1995, Cat. J/A+A/297/617
2: Visvanathan & Yamada, 1996, Cat. J/ApJS/107/521
3: Fairall et al., 1998, Cat. J/A+A/127/463
4: Strauss et al., 1992, Cat. II/174
5: Fisher et al., 1995, Cat. VII/185
6: The NED data compilation (prior to 1992)
7: Henning et al., 2000AJ....119.2686H 2000AJ....119.2686H
8: Dressler, 1991, Cat. J/ApJS/75/241
9: Gordon S. 2002, PhD Thesis, University of Queensland, submitted;
Gordon S., Koribalski B., Jones K. 2002, to be submitted to MNRAS
M: for observations made with the multifiber spectrograph MEFOS at
the 3.6m telescope of ESO which will be submitted shortly to A&A
(Woudt P.A., Kraan-Korteweg R.C., Cayatte C., Balkowski C., 2002)
Acknowledgements: Renee Kraan-Korteweg
History:
* 15-Jan-2003: 2 corrections have been made in table2, in the positions
of the sources RKK0972 and RKK2603 (e-mail exchange with the author)
(End) Patricia Bauer [CDS] 12-Jul-2002