J/A+A/408/465 LSB galaxies in near-infrared. III. (Monnier-Ragaigne+, 2003)
A search for Low Surface Brightness galaxies in the near-infrared.
III. Nancay HI line observations.
Monnier Ragaigne D., van Driel W., Schneider S.E., Balkowski C.,
Jarrett T.H.
<Astron. Astrophys. 408, 465 (2003)>
=2003A&A...408..465M 2003A&A...408..465M
ADC_Keywords: Galaxy catalogs ; Galaxies, photometry ; Photometry, infrared ;
H I data
Keywords: galaxies: distances and redshifts - galaxies: general -
galaxies: ISM - infrared: galaxies - radio lines: galaxies
Abstract:
A total of 334 Low Surface Brightness galaxies detected in the 2MASS
all-sky near-infrared survey have been observed in the 21 cm H I line
using the Nancay telescope. All have a Ks-band mean central surface
brightness, measured within a 5" radius, fainter than 18mag/arcsec2
and a Ks-band isophotal radius at the 20mag/arcsec2 level larger
than 20". We present global H I line parameters for the 171 clearly
detected objects and the 23 marginal detections, as well as upper
limits for the undetected objects. The 171 clear detections comprise
50 previously uncatalogued objects and 41 objects with a PGC entry
only.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3a.dat 49 171 Detected objects - identifications and coordinates
table3b.dat 129 177 Detected objects - basic data
table4a.dat 51 23 Marginal detections - identifications and coordinates
table4b.dat 116 24 Marginal detections - identifications and coordinates
table5a.dat 51 116 Undetected objects - identifications and coordinates
table5b.dat 81 125 Undetected objects - basic data
fig1a.ps 76 6679 Nancay 21-cm H I line spectra of detected objects
fig1b.ps 76 6371 Figure 1 continued
fig1c.ps 76 5992 Figure 1 continued
fig1d.ps 76 5853 Figure 1 continued
fig1e.ps 76 5983 Figure 1 continued
fig1f.ps 76 5615 Figure 1 continued
fig1g.ps 76 5961 Figure 1 continued
fig1h.ps 76 2240 Figure 1 continued
fig2a.ps 76 6335 Nancay 21-cm H I line spectra of marginal detections
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See also:
J/A+A/405/99 : LSB galaxies in near-infrared. I. (Monnier-Ragaigne+, 2003)
J/A+A/408/67 : LSB galaxies in near-infrared. II. (Monnier-Ragaigne+, 2003)
Byte-by-byte Description of file: table3a.dat table4a.dat table5a.dat
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Bytes Format Units Label Explanations
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1 A1 --- --- [(]
2- 7 A6 --- ID Identification of the galaxy
8 A1 --- f_2MASXi [)] Source names in brackets are not found in
later versions of the public 2MASS database
10- 23 A14 --- 2MASXi 2MASS designation (hhmmsss+ddmmss, J2000.0)
25 A1 --- f_ID [*] *: L737O has no entry in table5b.dat
27- 33 I7 --- PGC ? PGC number
36- 55 A20 ---- OName Other name
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Byte-by-byte Description of file: table3b.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1 A1 --- --- [(]
2- 7 A6 --- ID Identification of the galaxy
8 A1 --- m_ID [ab] Multiplicity index on ID, when two
line profiles detected in the same spectrum
9 A1 --- --- [)] Source names in brackets are not found
in later versions of the public 2MASS
database
11- 15 F5.2 mag K20 ? Total magnitude measured within the
rK20 isophotal aperture
17- 20 F4.2 mag J-Ks ? J-Ks colour index
22- 26 F5.2 mag/arcsec+2 SuBrK5 ? Mean central surface brightness measured
within a radius of 5" around the source's
center in the Ks band
28- 31 F4.2 --- b/a ? b/a ratio (ellipticity)
33- 36 F4.1 arcsec r(K20) ? Fiducial aperture in the Ks band
38- 42 F5.2 mag BTc ? Total apparent B-band magnitude (G1)
44- 47 F4.2 arcmin D25 ? Isophotal B-band diameter measured at a
surface brightness level of
25mag/arcsec2
49- 53 F5.2 mag/arcsec+2 SuBrB25 ? Mean B-band surface brightness within
the 25mag/arcsec2 isophote
55- 59 A5 --- MType Morphological type
61- 63 F3.1 mJy rms rms noise level in a spectrum
65- 68 F4.1 Jy.km/s I(HI) Integrated 21cm line flux
70- 74 I5 km/s V(HI) ? Heliocentric central radial velocity of
21cm line profile
76- 79 F4.1 km/s e_V(HI) ? rms uncertainty on V(HI)
81- 85 I5 km/s V(opt) ? Mean heliocentric optical radial velocity
87- 89 I3 km/s W(50) ? Velocity widths at 50% of peak maximum
90 A1 --- u_W(50) Uncertainty flag on W(50).
92- 94 I3 km/s W(20) ? Velocity widths at 20% of peak maximum
95 A1 --- u_W(20) Uncertainty flag on W(20).
97-101 F5.1 Mpc Dist Distance
103-107 F5.2 [solMass] logM(HI) Total HI mass
109-113 F5.2 [solLum] logL(K) Absolute magnitude in the Ks band (G2)
115-119 F5.2 [solLum] logL(B) ? Absolute magnitude in the B band (G2)
121-124 F4.2 --- M(HI)/LK Mass-to-Ks luminosity ratio
126-129 F4.2 --- M(HI)/LB ? Mass-to-blue luminosity ratio
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Byte-by-byte Description of file: table4b.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 7 A6 --- ID Identification of the galaxy
8 A1 --- m_ID [ab] Multiplicity index on ID, when two
line profiles detected in the same spectrum
10- 14 F5.2 mag K20 ? Total magnitude measured within the
rK20 isophotal aperture
16- 19 F4.2 mag J-Ks ? J-Ks colour index
21- 25 F5.2 mag/arcsec+2 SuBrK5 ? Mean central surface brightness measured
within a radius of 5" around the source's
center in the Ks band
27- 30 F4.2 --- b/a ? b/a ratio (ellipticity)
32- 35 F4.1 arcsec r(K20) ? Fiducial aperture in the Ks band
37- 41 F5.2 mag BTc ? Total apparent B-band magnitude (G1)
43- 46 F4.2 arcmin D25 ? Isophotal B-band diameter measured at a
surface brightness level of
25mag/arcsec2
48- 52 F5.2 mag/arcsec+2 SuBrB25 ? Mean B-band surface brightness within
the 25mag/arcsec2 isophote
54- 58 A5 --- MType Morphological type
60- 62 F3.1 mJy rms rms noise level in a spectrum
64- 66 F3.1 Jy.km/s I(HI) Integrated 21cm line flux
68- 72 I5 km/s V(HI) ? Heliocentric central radial velocity of
21cm line profile
74- 78 I5 km/s V(opt) ? Mean heliocentric optical radial velocity
80- 82 I3 km/s W(50) ? Velocity widths at 50% of peak maximum
84- 88 F5.1 Mpc Dist Distance
90- 94 F5.2 [solMass] logM(HI) Total HI mass
96-100 F5.2 [solLum] logL(K) Absolute magnitude in the Ks band (G2)
102-106 F5.2 [solLum] logL(B) ? Absolute magnitude in the B band (G2)
108-111 F4.2 --- M(HI)/LK Mass-to-Ks luminosity ratio
113-116 F4.2 --- M(HI)/LB ? Mass-to-blue luminosity ratio
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Byte-by-byte Description of file: table5b.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1 A1 --- --- [(]
2- 7 A6 --- ID Identification of the galaxy
8 A1 --- --- [)] Source names in brackets are not found
in later versions of the public 2MASS
database
9 A1 --- f_ID [*] *: L709P has no entry in table5a.dat
10- 14 F5.2 mag K20 ? Total magnitude measured within the
rK20 isophotal aperture
16- 19 F4.2 mag J-Ks ? J-Ks colour index
21- 25 F5.2 mag/arcsec+2 SuBrK5 ? Mean central surface brightness measured
within a radius of 5" around the source's
center in the Ks band
27- 30 F4.2 --- b/a ? b/a ratio (ellipticity)
32- 35 F4.1 arcsec r(K20) ? Fiducial aperture in the Ks band
37- 41 F5.2 mag BTc ? Total apparent B-band magnitude (G1)
43- 46 F4.2 arcmin D25 ? Isophotal B-band diameter measured at a
surface brightness level of 25mag/arcsec2
48- 52 F5.2 mag/arcsec+2 SuBrB25 ? Mean B-band surface brightness within
the 25mag/arcsec2 isophote
54- 58 A5 --- MType Morphological type
60- 63 F4.1 mJy rms rms noise level in a spectrum
65- 68 F4.1 Jy.km/s I(HI) Integrated 21cm line flux (2)
70- 73 F4.2 --- M(HI)/LK ? Mass-to-Ks luminosity ratio (2)
75- 78 F4.2 --- M(HI)/LB ? Mass-to-blue luminosity ratio (2)
80- 81 A2 --- Search Search mode (3)
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Note (2): Estimated upper limits to IHI and MHI are 3σ values
for 250km/s wide, flat-topped profiles
Note (3): Two different line search modes were used:
lo in the -500 to 10500km/s range
hi in the 9500 to 20500km/s range.
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Global notes:
Note (G1): Reduced to the RC3 system and corrected for galactic extinction,
inclination and redshift effects.
Note (G2): LK (resp. LB) is expressed in L_☉,K (resp. L☉,B),
and calculated using an absolute solar Ks (resp. B) -band magnitude of
3.33 (resp. 5.48) (Allen, 1973, Astrophysical Quantities).
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Acknowledgements: Wim van Driel
(End) Patricia Bauer [CDS] 12-Sep-2003