J/A+A/505/29 HI observations of 2MASS galaxies in ZoA (van Driel+, 2009)
HI line observations of 2MASS galaxies in the zone of avoidance.
van Driel W., Schneider S.E., Kraan-Korteweg R.C., Monnier Ragaigne D.
<Astron. Astrophys., 505, 29-44 (2009)>
=2009A&A...505...29V 2009A&A...505...29V
ADC_Keywords: Galaxies, radio ; H I data ; Radio lines ; Infrared sources
Keywords: galaxies: distances and redshifts - galaxies: general -
galaxies: ISM - infrared: galaxies - radio lines: galaxies
Abstract:
A pilot survey has been made to obtain 21cm HI emission line profiles
for 197 objects in the zone of avoidance (ZoA) that were classified as
galaxies in the 2MASS all-sky near-infrared Extended Source Catalog
(2MASX), as well as a further 16 2MASS pre-release working database
sources that did not make it into 2MASX.
One hundred sixteen of the 2MASX sources and the 16 working database
sources were observed using the Nancay radio telescope, usually in
the 325 to 11825km/s range, and the other 81 2MASX sources were
observed with the Arecibo radio telescope in the -500 to 11000km/s
range, and for 9 also in the 9500 to 21000km/s range.
Description:
The Nancay observations were made in the period June-December 2002,
using a total of about 350h of telescope time. A number of follow-up
observations were made to check tentative detections in late 2007 and
in late 2008.
We observed a sample of 81 LSB galaxies in the ZoA from a pre-release
version of the 2MASS working database using the refurbished 305-m
Arecibo Gregorian radio telescope in November 2000 and January 2001,
for a total of about 30h observing time.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 125 24 Nancay: observational data
table2.dat 88 23 Nancay: derived data
table3.dat 104 81 Nancay: non-detections
table4.dat 125 29 Arecibo: observational data
table5.dat 88 29 Arecibo: derived data
table6.dat 104 52 Arecibo: non-detections
table7.dat 96 25 Comparison with published HI data
sp/* . 52 Individual spectra
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See also:
VII/242 : LEDA galaxies with DENIS measurements catalog (Paturel+, 2005)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
Byte-by-byte Description of file: table[14].dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Name Source number used in Figs. 2-4
5 A1 --- n_Name Note on N15 (G1)
7- 22 A16 --- 2MASXJ 2MASX J designation (HHMMSSss+DDMMSSs)
23 A1 --- u_2MASXJ [)] Uncertain 2MASX
24- 30 I7 --- PGC ? PGC number (Cat. VII/237)
32- 48 A17 --- OName Other name
50- 54 F5.2 mag K20mag ? Total Ks magnitude measured within the
rK20 isophotal aperture
56- 59 F4.2 mag J-K ? J-K colour index (G2)
61- 64 F4.2 mag H-K ? H-K colour index (G2)
66- 70 F5.2 arcsec rK20 ? Radius at a surface brightness of
20mag/arcsec2 in the Ks band
72- 75 F4.2 --- b/a ? Infrared axis ratio
76 A1 --- u_b/a [)] Uncertainty flag on axis ratio
77- 81 F5.2 mag BTc ? Total apparent B-band magnitude reduced to
the RC3 system
83- 86 F4.2 arcmin D25 ? Diameter at a visual surface brightness
of approximately 25mag/arcsec2
88 A1 --- l_IHI Limit flag on IHI
89- 93 F5.2 Jy.km/s IHI Integrated HI line flux
95- 98 F4.2 Jy.km/s e_IHI ? rms uncertainty on IHI
100-104 I5 km/s V50 Heliocentric central radial velocity of a
line profile, in the optical convention,
taken as the average of the high and low
velocity edges of the HI profile, measured
at 50% of peak flux density
106-107 I2 km/s e_V50 ? rms uncertainty on V50
109-111 I3 km/s W50 Profile's velocity width at 50% of peak
maximum
112 A1 --- u_W50 [)] Uncertainty flag on W50
114-116 I3 km/s W20 Profile's velocity width at 20% of peak
maximum
118-121 F4.2 mJy rms rms noise level
123-125 I3 mJy Smax Peak flux density of the line
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Byte-by-byte Description of file: table[25].dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- Name Source Name
5 A1 --- n_Name Note on N15 (G1)
7- 12 F6.2 deg GLON Galactic longitude
14- 18 F5.2 deg GLAT Galactic latitude
20- 24 F5.2 mag AB Galactic B-band extinction
26- 30 F5.1 Mpc Dist Galaxy's distance
32- 35 F4.2 mag k(J-K) k-correction to the J-K colour index
37- 40 F4.1 kpc RK20 ? Total Ks-band magnitude measured within
the rK20 isophotal aperture
42- 46 F5.2 [solMass] logMHI Total HI mass
48- 52 F5.2 [solLum] logLK ? K-band luminosity
54- 58 F5.2 [Sun] log(MHI/LK) ? HI mass to Ks luminosity ratio
60- 64 F5.2 [solLum] logLB ? B-band luminosity
66- 70 F5.2 [Sun] log(MHI/LB) ? HI mass to B luminosity ratio
72- 76 F5.1 km/s vrot ? Rotation speed corrected for inclination
78- 82 F5.2 [solMass] logMdyn ? Dynamical mass
84- 88 F5.2 [-] log(Mb/Mdyn) ? Ratio of the combined HI and stellar
baryonic mass as a fraction of the
total dynamical mass (2)
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Note (2): where Mbaryon=0.8LK+1.4MHI (McGaugh et al., 2000ApJ...533L..99M 2000ApJ...533L..99M)
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Byte-by-byte Description of file: table[36].dat
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Bytes Format Units Label Explanations
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1- 16 A16 --- 2MASXJ 2MASX J designation (HHMMSSss+DDMMSSs)
17 A1 --- n_2MASXJ [*] Note on velocity search range (1)
19- 25 I7 --- PGC ? PGC number
27- 47 A21 --- OName Other name
49- 54 F6.2 deg GLON [-10/360] Galactic longitude
56- 60 F5.2 deg GLAT Galactic latitude
62- 66 F5.2 mag AB Galactic B-band extinction in this direction
in the Milky Way, as estimated by Schlegel
et al. (1998ApJ...500..525S 1998ApJ...500..525S)
68- 72 F5.2 mag K20mag Total Ks magnitude measured within the r_K20
isophotal aperture
74- 77 F4.2 mag J-K J-K colour index, within the r_K20 isophotal
aperture (G2)
79- 82 F4.2 mag H-K H-K colour index, within the r_K20 isophotal
aperture (G2)
84- 87 F4.1 mJy rms ? rms noise level or sigma in the HI spectrum
(only in table)
89- 92 F4.2 mJy rmslo ? rms noise level or sigma in the HI spectrum
in the -500 to 11000km/s search range
(only in table6)
94- 97 F4.2 mJy rmshi ? rms noise level or sigma in the HI spectrum
in the 9500 to 21000km/s search range
(only in table6)
99-102 I4 km/s Vopt ? Heliocentric radial velocity of the galaxy,
measured in the optical
104 I1 --- r_Vopt [/5]? Reference for Vopt (2)
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Note (1): * indicates sources searched for in the -275 to 11225km/s range,
all others were searched for in the 325 to 11825km/s range.
Note (2): References as follows:
1 = Huchra et al. (1983, Cat. VII/193)
2 = Wegner et al. (2003, Cat. J/AJ/126/2268)
3 = West et al. (1981A&AS...46...57W 1981A&AS...46...57W)
4 = Tully (2002, private communitation)
5 = Takata et al. (1994, Cat. <J/A+AS/104/529)
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Source number used in Figs. 2-4
11 A1 --- n_Name Note on N15 (G1)
13- 17 F5.2 Jy.km/s IHI ? Integrated HI line flux
19- 21 F3.1 Jy.km/s e_IHI ? rms uncertainty on IHI
23- 27 I5 km/s VHI ? Heliocentric systemic radial velocity of the
galaxy, measured in the HI line
29 I1 km/s e_VHI ? rms uncertainty on VHI
31- 33 I3 km/s W50 ? HI profile velocity width at 50% of peak
maximum
35- 44 A10 --- Tel Radio telescope where the observations were
made
46- 96 A51 --- Ref Literature reference
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Global notes:
Note (G1): No. N15: galaxy ESO 371-27 was detected in the beam centred on
the undetected target, ESO 371-26.
Note (G2): Not corrected for extinction, hence reddened depending on the
foreground dust column density by the amount of fJ-K=0.12AB and
fH-K=0.05AB
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Byte-by-byte Description of file: sp/*
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Bytes Format Units Label Explanations
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5- 15 F11.5 km/s HRV heliocentric radial velocity
22- 35 F14.11 Jy Svs Velocity-smoothed flux density
39- 50 F12.9 Jy Sv Flux density at full velocity resolution
56- 67 F12.9 Jy Base ? Fitted and subtracted baseline
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History:
18-Jan-2010: Spectra added
Acknowledgements:
Wim van Driel, wim.vandriel(at)obspm.fr
(End) Patricia Vannier [CDS] 06-Oct-2009