J/A+A/506/677 HI in Local Supercluster dwarf galaxies (Huchtmeier+, 2009)
HI-observations of dwarf galaxies in the Local Supercluster.
Huchtmeier W.K., Karachentsev I.D., Karachentseva V.E.
<Astron. Astrophys., 506, 677-680 (2009)>
=2009A&A...506..677H 2009A&A...506..677H (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, radio ; H I data ; Morphology ; Radial velocities
Keywords: galaxies: dwarf - galaxies: evolution - galaxies: ISM
Abstract:
We have observed 71 dwarf galaxies of low surface brightness using the
100-m radio telescope at Effelsberg in a search for new members of 27
northern galaxy groups with characteristic distances of 8 to 15Mpc.
We present radial velocities, HI-fluxes, and HI line widths for 17
detected galaxies as well as upper limits for the remaining undetected
objects.
Description:
The HI observations were completed using the 100-m radiotelescope,
which has a half power beam width of 9.3' at a wavelength of 21cm.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table12.dat 131 17 Observational data and derived parameters for
the detected galaxies
table3.dat 63 54 Observational data - upper limits
notes.dat 80 60 Individual notes
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See also:
J/A+A/319/67 : HI observations of dwarf galaxies in voids (Huchtmeier+ 1997)
J/A+A/366/428 : HI observations of nearby dwarf galaxies (Karachentsev+ 2001)
J/MNRAS/352/478 : HI obs. of low surface brightness dwarf gal. (Roberts+, 2004)
Byte-by-byte Description of file: table12.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Galaxy Galaxy name (G1)
13- 14 I2 h RAh ? Right ascension (J2000)
16- 17 I2 min RAm ? Right ascension (J2000)
19- 22 F4.1 s RAs ? Right ascension (J2000)
24 A1 --- DE- Declination sign (J2000)
25- 26 I2 deg DEd ? Declination (J2000)
28- 29 I2 arcmin DEm ? Declination (J2000)
31- 32 I2 arcsec DEs ? Declination (J2000)
34- 37 F4.2 arcmin Size1 Optical size (G2)
38 A1 --- --- [x]
39- 42 F4.2 arcmin Size2 Optical size (G2)
44- 48 F5.2 mag Bmag Blue apparent magnitude estimated bye eye
on the POSS-II (1)
50- 51 A2 --- T Morphological type estimated on POSS-II
53- 56 I4 km/s ORV ? Optical heliocentric radial velocity (2)
58- 59 I2 km/s e_ORV ? rms uncertainty on ORV
61- 63 F3.1 Jy.km/s FHI Measured HI flux
65- 68 F4.2 Jy.km/s e_FHI rms uncertainty on FHI
70- 71 I2 mJy FHIp Observed HI peak flux
73 I1 mJy e_FHIp rms uncertainty on FHIp
75- 78 I4 km/s HIRV HI heliocentric radial velocity derived
from the midpoint of the line at 50% of
the peak
80 I1 km/s e_HIRV rms uncertainty on HIRV
82- 84 I3 km/s W50 HI line width at the level of 50% of the
line peak
86- 88 I3 km/s W25 ? HI line width at the level of 25% of
the line peak
90- 93 I4 km/s VLG Heliocentric velocity reduced to the
motion of the Local Group
95- 98 F4.1 Mpc Dist Distance (assuming H0=73km/s/Mpc)
100-102 F3.1 kpc Diam Linear diameter (A0,i)
104-108 F5.1 mag BMAG Absolute B magnitude corrected for
Galactic extinction
110-113 F4.2 10+8solMass MHI Total HI mass
115-118 F4.2 10+8solMass e_MHI rms uncertainty on MHI
120-123 F4.2 10+8solLum LB Total blue luminosity
125-129 F5.2 solMass/solLum MHI/LB HI mass to B luminosity ratio
131 A1 --- n_Galaxy [*] * indicates a note in notes.dat file
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Note (1): with an estimated error of ∼0.5mag.
Note (2): according to SDSS DR4.
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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- 13 A13 --- Galaxy Galaxy name (G1)
15- 16 I2 h RAh ? Right ascension (J2000)
18- 19 I2 min RAm ? Right ascension (J2000)
21- 24 F4.1 s RAs ? Right ascension (J2000)
26 A1 --- DE- Declination sign (J2000)
27- 28 I2 deg DEd ? Declination (J2000)
30- 31 I2 arcmin DEm ? Declination (J2000)
33- 34 I2 arcsec DEs ? Declination (J2000)
36- 39 F4.2 arcmin Size1 Optical size (G2)
40 A1 --- --- [x]
41- 44 F4.2 arcmin Size2 Optical size (G2)
46- 48 A3 --- T Morphological type
50- 54 A5 --- Group Group membership suggested by its position
56- 59 I4 km/s RVc ? Radial velocity used for the center of the
observed velocity band
61 I1 mJy rms rms noise of the observed spectrum
63 A1 --- n_Galaxy [*] * indicates a note in notes.dat file
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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- 11 A11 --- Galaxy Galaxy name
13- 80 A68 --- Note Text of the note
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Global notes:
Note (G1): Galaxy names dJHHMM+DDMM identified as
[HKK2009] dJHHMM+DDMM in Simbad.
Note (G2): Optical dimensions in arcmin estimated by eye on the POSS-II
corresponding approximately to the blue surface brightness level at
∼26.5mag/arcsec2 (Holmberg level).
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 12-Jan-2010