J/PAZh/31/563 HI observations of flat galaxies (Mitronova+, 2005)
HI observations of flat galaxies.
Mitronova S.N., Huchtmeier W.K., Karachentsev I.D., Karachentseva V.E.,
Kudrya Yu.N.
<Pis'ma Astron. Zh. 31, 563 (2005)>
=2005PAZh...31..563M 2005PAZh...31..563M
=2005AstL...31..501M 2005AstL...31..501M
ADC_Keywords: Galaxies, optical; H I data ; Radial velocities
Abstract:
Results of HI observations with the 100-m Effelsberg radio telescope
are presented for 94 edge-on spiral galaxies from the Revised Flat
Galaxy Catalog (Karachentsev et al., 1999, Cat. VII/219) and 14
galaxies from the 2MASS-selected Flat Galaxy Catalog (Mitronova et
al., 2004, Bull. Spec. Astron. Obs. Russ. Acad. Sci. 57, 5). The HI
line fluxes, heliocentric radial velocities and the HI line widths are
given for 65 detected galaxies. Their HI profiles are shown as a
mosaic. We calculated some global parameters of the galaxies and
discuss linear correlations between them. Total (indicative)
mass-to-luminosity ratio for the sample galaxies is ranked within
0.4-8.2 with the mean value 3.8 (M☉/L☉), and the mean
fraction of hydrogen mass is 0.13. For 43 undetected objects their rms
noise is also given.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 80 94 Results of the HI observations of RFGC
galaxies with the 100-m radio telescope
table2.dat 84 14 Results of the HI observations of 2MFGC galaxies
with the 100-m radio telescope.
table3.dat 49 50 Optical and HI parameters of galaxies
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See also:
VII/219 : Revised Flat Galaxy Catalogue (RFGC) (Karachentsev+, 1999)
J/other/BSAO/50.5 : Velocities of RFGC galaxies (Karachentsev+, 2000)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- RFGC RFGC galaxy number
6- 7 I2 h RAh Right ascension J2000.0 (hours)
9- 10 I2 min RAm Right ascension J2000.0 (minutes)
12- 15 F4.1 s RAs Right ascension J2000.0 (seconds)
17 A1 --- DE- Declination (2000) (sign)
18- 19 I2 deg DEd Declination J2000.0 (degrees)
21- 22 I2 arcmin DEm Declination J2000.0 (arcminutes)
24- 25 I2 arcsec DEs Declination J2000.0 (arcseconds)
27- 31 F5.2 arcmin amaj Major diameter (1)
33- 36 F4.2 arcmin bmaj Minor diameters (1)
38- 41 F4.1 mag Btot Total B-band magnitude
43 I1 --- TType Morphological type in the Hubble system (G1)
45- 49 F5.1 Jy.km/s F(HI) ? HI-line flux (G2)
50 A1 --- u_F(HI) [:] Uncertainty flag on F (2)
52- 54 I3 mJy Smax ? Maximum flux
56- 57 I2 mJy e_Smax Standard deviation in Smax
60- 63 I4 km/s HRV ? Mean heliocentric radial velocity
64 A1 --- u_HRV [:] Uncertainty flag on HRV (2)
66- 67 I2 km/s e_HRV ? Standard deviation in HRV
70- 72 I3 km/s W50 ? HI line width at 50% of the peak flux level
74- 76 I3 km/s W25 ? HI line width at 25% of the peak flux level
78- 80 I3 km/s W20 ? HI line width at 20% of the peak flux level
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Note (1): Diameter corresponded to the B-band 25 mag arcsec^-2 isophote.
Note (2): It is only statistical errors (the systematic error is ∼10%).
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Galaxy name (1)
15- 16 I2 h RAh Right ascension J2000.0 (hours)
18- 19 I2 min RAm Right ascension J2000.0 (minutes)
21- 24 F4.1 s RAs Right ascension J2000.0 (seconds)
26 A1 --- DE- Declination (2000) (sign)
27- 28 I2 deg DEd Declination J2000.0 (degrees)
30- 31 I2 arcmin DEm Declination J2000.0 (arcminutes)
33- 36 F4.1 arcsec DEs Declination J2000.0 (arcseconds)
38- 41 F4.2 arcmin amaj Major diameter (2)
43- 45 F3.2 arcmin bmaj Minor diameters (2)
47- 51 F5.2 mag Btot ? Total B-band magnitude (2)
53 I1 --- TType Morphological type in the Hubble system (G1)
55- 58 F4.1 Jy.km/s F(HI) ? HI-line flux (G2)
60- 61 I2 mJy Smax ? Maximum flux
63- 64 I2 mJy e_Smax Standard deviation in Smax
67- 70 I4 km/s HRV ? Mean heliocentric radial velocity
72 I1 km/s e_HRV ? Standard deviation in Vn
74- 76 I3 km/s W50 ? HI line width at 50% of the peak flux level
78- 80 I3 km/s W25 ? HI line width at 25% of the peak flux level
82- 84 I3 km/s W20 ? HI line width at 20% of the peak flux level
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Note (1): Galaxy names in known catalogs taken from the NED electronic database
Note (2): Taken from the LEDA electronic database.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- RFGC RFGC galaxy number
6- 9 I4 km/s Vlg Radial velocity reduced to centroid of
the Local Group
11- 13 I3 km/s Wc HI line width at 50% of the peak flux level
corrected for turbulence and relativistic
broadening
16- 19 F4.1 [solMass] log(MHI) Logarithm of the HI mass
22- 25 F4.1 [solMass] log(M25) Logarithm of the galaxy's indicative mass
28- 31 F4.1 [solLum] log(L) Logarithm of the galaxy's total luminosity
34- 37 F4.2 --- MHI/L HI mass-to-luminosity ratio
40- 43 F4.2 --- M25/L Galaxy's total mass-to-luminosity ratio
46- 49 F4.2 --- MHI/M25 Mass fraction of neutral hydrogen
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Global notes:
Note (G1): Morphological type in the Hubble system:
3=Sb, 4=S_bc, 5=SC, 6=S_cd, 7=Sd, 8=Sdm and 9=Sm.
Note (G2): Flux is corrected for the ratio of the galaxy's angular diameter
to the telescope's aperture.
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(End) Veta Avedisova (INASAN) 10-Oct-2005