J/MNRAS/432/1178 2MTF. HI observations of 303 southern galaxies (Hong+, 2013)
2MTF. II. New Parkes 21-cm observations of 303 southern galaxies.
Hong T., Staveley-Smith L., Masters K.L., Springob C.M., Macri L.M.,
Koribalski B.S., Jones D.H., Jarrett T.H., Crook A.C.
<Mon. Not. R. Astron. Soc., 432, 1178-1188 (2013)>
=2013MNRAS.432.1178H 2013MNRAS.432.1178H
ADC_Keywords: Surveys ; Galaxies, radio ; H I data
Keywords: catalogues - surveys - galaxies: distances and redshifts -
galaxies: spiral - radio lines: galaxies
Abstract:
We present new 21-cm neutral hydrogen (HI) observations of spiral
galaxies for the 2MASS Tully-Fisher (2MTF) survey. Using the 64-m
Parkes radio telescope multibeam system we obtain 152 high signal to
noise ratio HI spectra from which we extract 148 high-accuracy (<5%
error) velocity widths and derive reliable rotation velocities. The
observed sample consists of 303 southern (δ←40°) galaxies
selected from the 2MASS Redshift Survey with Ks<11.25mag, cz<10000km/s
and axis ratio b/a<0.5. The HI observations reported in this paper
will be combined with new HI spectra from the Green Bank and Arecibo
telescopes, together producing the most uniform Tully-Fisher survey
ever constructed (in terms of sky coverage). In particular, due to its
near-infrared selection, 2MTF will be significantly more complete at
low Galactic latitude (|b|<15°) and will provide a more reliable
map of peculiar velocities in the local Universe.
Description:
The southern galaxies were observed in six semesters between 2006 and
2012 using the 21-cm Parkes multibeam receiver.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 122 152 HI parameters of 152 well-detected Parkes
galaxies of 2MASS Tully-Fisher Survey
table3.dat 48 115 115 non-detected Parkes galaxies of
2MASS Tully-Fisher Survey
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See also:
VIII/77 : HI spectral properties of galaxies (Springob+, 2005)
J/ApJS/199/26 : The 2MASS Redshift Survey (2MRS) (Huchra+, 2012)
J/MNRAS/443/1044 : GBT HI 21cm obs. of 1194 spiral galaxies (Masters+, 2014)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 A16 --- 2MASX 2MASX designation (HHMMSSss+DDMMSSs) (VII/233)
19- 27 F9.5 deg RAdeg Right ascension (J2000)
28- 35 F8.4 deg DEdeg Declination (J2000)
37- 40 I4 km/s V2mrs Heliocentric redshift from the 2MRS (Huchra
et al. 2012, J/ApJS/199/26)
42- 43 I2 --- TT ?=99 RC3 morphological type T
45- 48 F4.2 --- b/a [0/1] Co-added axis ratio (b/a) from the 2MASX
50- 55 F6.2 Jy.km/s Fint Observed integrated 21cm HI line flux
57- 60 F4.2 Jy.km/s e_Fint rms uncertainty on Fint
62- 65 I4 km/s VHI Heliocentric systemic velocity of the
HI profile (1)
67- 69 I3 km/s WF50 Width measured at 50% of the value of
fp-σrms on a linear fit of
both sides of the profile
71- 73 I3 km/s WM50 Width measured at 50% of the mean flux of
the profile
75- 77 I3 km/s W2P50 Width measured at 50% of each of the two
fp-σrms values
79- 81 I3 km/s WP50 Width measured at 50% of the
fp-σrms value
83- 85 I3 km/s WP20 Width measured at 20% of the
fp-σrms value
87- 88 I2 km/s e_WF50 rms uncertainty on WF50
90- 91 I2 km/s e_WM50 rms uncertainty on WM50
93- 94 I2 km/s e_W2P50 rms uncertainty on W2P50
96- 97 I2 km/s e_WP50 rms uncertainty on WP50
99-100 I2 km/s e_WP20 rms uncertainty on WP20
102-104 I3 km/s Wc Corrected value of the WF50 measurement
106-109 F4.1 km/s e_Wc rms uncertainty on Wc
111-116 F6.2 --- S/N Signal-to-noise ratio (S/N=fp/σ_rms)
118-122 F5.3 --- lambda Velocity width instrumental correction
parameter λ (see Springob et al.
2005ApJS..160..149S 2005ApJS..160..149S)
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Note (1): generated by the fitting algorithm discussed in Section 2.1.2, taken
as the midpoint of the velocity at 50% level of fp-σrms.
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Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 16 A16 --- 2MASX 2MASX designation (HHMMSSss+DDMMSSs)
18- 25 F8.4 deg RAdeg Right ascension (J2000)
27- 34 F8.4 deg DEdeg Declination (J2000)
36- 40 I5 km/s V2mrs Heliocentric redshift from the 2MRS
(Huchra et al. 2012, J/ApJS/199/26)
42- 46 F5.2 mJy rms rms
48 A1 --- Flag [Y/N] Peak detected at 20mJy (1)
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Note (1): Flag as follows:
Y = one or more peaks with flux Speak≥20mJy is found on the HIPASS spectrum
in the velocity region of V2MRS±200km/s
N = no peaks with flux Speak≥20mJy are found on the HIPASS spectrum in the
velocity region of V2MRS±200km/s
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History:
From electronic version of the journal
References:
Masters et al., Paper I 2008AJ....135.1738M 2008AJ....135.1738M
Masters et al., Paper III 2014MNRAS.443.1044M 2014MNRAS.443.1044M, Cat. J/MNRAS/443/1044
(End) Patricia Vannier [CDS] 08-Jul-2014