J/A+A/408/67 LSB galaxies in near-infrared. II. (Monnier-Ragaigne+, 2003)
A search for Low Surface Brightness galaxies in the near-infrared.
II. Arecibo HI line observations.
Monnier-Ragaigne D., van Driel W., O'Neil K., Schneider S.E., Balkowski C.,
Jarrett T.H.
<Astron. Astrophys. 408, 67 (2003)>
=2003A&A...408...67M 2003A&A...408...67M
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 367 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 Arecibo telescope. All have a Ks-band mean central surface
brightness, measured within a 5" radius, fainter than
18mag/arcsec2. We present global H I line parameters for the 107
clearly detected objects and the 21 marginal detections, as well as
upper limits for the undetected objects. The 107 clear detections
comprise 15 previously uncatalogued objects and 36 with a PGC entry
only.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 100 24 Comparison with published HI data
table3a.dat 50 107 Detected objects -
identifications and coordinates
table4a.dat 47 21 Marginal detections -
identifications and coordinates
table5a.dat 50 237 Undetected objects -
identifications and coordinates
table3b.dat 133 108 Detected objects - basic data
table4b.dat 114 21 Marginal detections - basic data
table5b.dat 84 271 Undetected objects - basic data
fig2a.ps 76 5112 Arecibo 21-cm H I line spectra of the clearly
detected objects
fig2b.ps 76 5267 Figure 2 continued
fig2c.ps 76 6152 Figure 2 continued
fig2d.ps 76 6044 Figure 2 continued
fig2e.ps 76 3246 Figure 2 continued
fig3.ps 76 5304 Arecibo 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/408/465 : LSB galaxies in near-infrared. III. (Monnier-Ragaigne+, 2003)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- ID Identification of the galaxy
11- 23 A13 --- OName Other name
26- 29 I4 km/s V(HI) Heliocentric central radial velocity of 21cm
line profile
32- 36 F5.2 Jy.km/s I(HI) ? Integrated 21cm line flux
40- 42 I3 km/s W(50) ? Width velocity at 50% of peak maximum
47 A1 --- Tel [AN] Telescopes, Arecibo (A) or Nancay (N)
53-102 A50 --- Ref Reference
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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- 6 A6 --- ID Identification of the galaxy
7 A1 --- n_ID [)] Source names in brackets are not found in
later versions of the public 2MASS database
9- 22 A14 --- 2MASXi 2MASS name (hhmmsss+ddmmss, J2000.0)
24 A1 --- f_ID [*] *: S396N has no entry in table3b.dat
26- 32 I7 --- PGC ? PGC number
35- 54 A20 --- OName Other name
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Byte-by-byte Description of file: table3b.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 --- 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- 61 A7 --- MType Morphological type
63- 66 F4.2 mJy rms rms noise level in a spectrum
68 A1 --- l_I(HI) Limit flag on I(HI)
69- 72 F4.2 Jy.km/s I(HI) Integrated 21cm line flux
74 A1 --- l_V(HI) Limit flag on V(HI)
75- 79 I5 km/s V(HI) ? Heliocentric central radial velocity of
21cm line profile
81- 82 I2 km/s e_V(HI) ? rms uncertainty on V(HI)
84- 88 I5 km/s V(opt) ? Mean heliocentric optical radial velocity
90- 92 I3 km/s W(50) ? Velocity widths at 50% of peak maximum
94- 96 I3 km/s W(20) ? Velocity widths at 20% of peak maximum
98 A1 --- n_Dist [(] Note (1)
99-103 F5.1 Mpc Dist Distance
105 A1 --- n_logM(HI) [(] Note (2)
106-110 F5.2 [solMass] logM(HI) Total HI mass
112-116 F5.2 [solLum] logL(K) Absolute magnitude in the Ks band (G2)
118-122 F5.2 [solLum] logL(B) ? Absolute magnitude in the B band (G2)
124-127 F4.2 --- M(HI)/LK Mass-to-Ks luminosity ratio
129-132 F4.2 --- M(HI)/LB ? Mass-to-blue luminosity ratio
133 A1 --- --- [)]
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Note (1): For L224O: Our H I spectrum of the target galaxy, NGC 464,
shows two detections, at 5803 and 6673km/s. It is impossible to assign
the detections to the objects, as neither has a known optical
redshift. For the distance dependent parameters listed for L224Oa and
L224Ob it was assumed that the H I is associated with NGC 464.
Note (2): For S490P: H I profile partially outside our search range.
For S2834O: Two H I lines were detected in our spectrum, at 5615 and
9802km/s. For the distance dependent parameters listed for S2834Oa/b
it was assumed that the H I is associated with the target galaxy.
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Byte-by-byte Description of file: table4b.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- ID Identification of the galaxy
8- 12 F5.2 mag K20 Total magnitude measured within the rK20
isophotal aperture
14- 17 F4.2 mag J-Ks J-Ks colour index
19- 23 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
25- 28 F4.2 --- b/a b/a ratio
30- 33 F4.1 arcsec r(K20) Fiducial aperture in the Ks band
35- 39 F5.2 mag BTc ? Total apparent B-band magnitude (G1)
41- 44 F4.2 arcmin D25 ? Isophotal B-band diameter measured at a
surface brightness level of 25mag/arcsec2
46- 50 F5.2 mag/arcsec+2 SuBrB25 ? Mean B-band surface brightness within
the 25mag/arcsec2 isophote
52- 56 A5 --- MType Morphological type
58- 61 F4.2 mJy rms rms noise level in a spectrum
63- 66 F4.2 Jy.km/s I(HI) Integrated line flux
68- 72 I5 km/s V(HI) Heliocentric central radial velocity of a
line profile
74- 77 I4 km/s V(opt) ? Mean heliocentric optical radial velocity
79- 81 I3 km/s W(50) Velocity widths at 50% of peak maximum
83- 87 F5.1 Mpc Dist Distance
89- 92 F4.2 [solMass] logM(HI) Total HI mass
94- 98 F5.2 [solLum] logL(K) Absolute magnitude in the Ks band (G2)
100-104 F5.2 [solLum] logL(B) ? Absolute magnitude in the B band (G2)
106-109 F4.2 --- M(HI)/LK Mass-to-Ks luminosity ratio
111-114 F4.2 --- M(HI)/LB ? Mass-to-blue luminosity ratio
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Byte-by-byte Description of file: table5b.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- ID Identification of the galaxy
8- 12 F5.2 mag K20 Total magnitude measured within the rK20
isophotal aperture
14- 17 F4.2 mag J-Ks J-Ks colour index
19- 22 F4.2 mag H-Ks H-Ks colour index
24- 28 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
30- 33 F4.2 --- b/a b/a ratio
35- 38 F4.1 arcsec r(K20) Fiducial aperture in the Ks band
40- 44 F5.2 mag BTc ? Total apparent B-band magnitude (1)
46- 49 F4.2 arcmin D25 ? Isophotal B-band diameter measured at a
surface brightness level of 25mag/arcsec2
51- 55 F5.2 mag/arcsec+2 SuBrB25 ? Mean B-band surface brightness within
the 25mag/arcsec2 isophote
57- 60 A4 --- MType Morphological type
62- 65 F4.2 mJy rms rms noise level in a spectrum
67- 70 F4.2 Jy.km/s I(HI) Integrated line flux (2)
72- 75 F4.2 --- M(HI)/LK Mass-to-Ks luminosity ratio
77- 80 F4.2 --- M(HI)/LB ? Mass-to-blue luminosity ratio
83- 84 A2 --- Search Search mode (3)
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Note (1): Reduced to the RC3 system and corrected for galactic extinction,
inclination and redshift effects.
Note (2): Estimated upper limits to I(HI) are for 250km/s wide, flat-topped
profiles
Note (3): 3 different line search modes were used:
lo in the -500 to 11000km/s range,
hi in the 9500 to 21000km/s range
kv for objects with previously known redshifts;
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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