J/A+A/564/A65 Cold gas properties of Herschel Reference Survey (Boselli+, 2014)
Cold gas properties of the Herschel Reference Survey.
I. 12CO(1-0) and HI data.
Boselli A., Cortese L., Boquien M.
<Astron. Astrophys. 564, A65 (2014)>
=2014A&A...564A..65B 2014A&A...564A..65B
ADC_Keywords: Surveys ; Galaxies, radio ; Carbon monoxide
Keywords: galaxies: ISM - galaxies: general - galaxies: spirals -
radio lines: galaxies
Abstract:
We present new 12CO(1-0) observations of 59 late-type galaxies
belonging to the Herschel Reference Survey (HRS), a complete
K-band-selected, volume-limited (15≤D≤25Mpc) sample of nearby
galaxies spanning a wide range in morphological type and luminosity.
We studied different recipes to correct single-beam observations of
nearby galaxies of different sizes and inclinations for aperture
effects. This was done by comparing single-beam and multiple-beam
observations along the major axis, which were corrected for aperture
effects using different empirical or analytical prescriptions, to
integrated maps of several nearby galaxies, including edge-on systems
observed by different surveys. The resulting recipe is an analytical
function determined by assuming that late-type galaxies are 3D
exponentially declining discs with a characteristic scale length
rCO=0.2r24.5, where r24.5 is the optical, g- (or B-) band
isophotal radius at the 24.5mag/arcsec2 (25mag/arcsec2), as well
as a scale height zCO=1/100r24.5. Our new CO data are then
combined with those available in the literature to produce the most
updated catalogue of CO observations for the HRS, now including 225
out of the 322 galaxies of the complete sample. The 3D exponential
disc integration is applied to all the galaxies of the sample to
measure their total CO fluxes, which are later transformed into
molecular gas masses using a constant and a luminosity-dependent XCO
conversion factor. We also collect HI data for 315 HRS galaxies from
the literature and present it in a homogenised form.
Description:
12CO(1-0) and HI data for galaxies of the Herschel Reference Sample
(Boselli et al., 2010, Cat. J/PASP/122/261). The data are either
collected in the literature, or taken from our own observations done
with the 12m Keat Peak radio telescope.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 132 323 The sample
table2.dat 57 91 The 12CO(1-0)observations
table10.dat 72 344 12CO(1-0) central beam data
table11.dat 56 323 The final molecular gas data
table12.dat 39 323 The HI data
refs.dat 83 72 References
sp/* . 93 *Individual spectra associated to table2.dat
--------------------------------------------------------------------------------
Note on sp/*: for HRS 48, there are 3 spectra.
--------------------------------------------------------------------------------
See also:
VI/139 : Herschel Observation Log (Herschel Science Centre, 2013)
J/PASP/122/261 : Herschel Reference Survey Sample (Boselli+, 2010)
J/A+A/543/A161 : Submillimetre obs. of 323 HRS nearby galaxies (Ciesla+, 2012)
J/A+A/544/A101 : Herschel Reference Survey GALEX observations (Cortese+, 2012)
Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- HRS [1/323] Source ID <[BEC2010] HRS NNN> in Simbad
5- 10 I6 --- CGCG ?=- CGCG number
12- 15 I4 --- VCC ?=- VCC number
17- 20 I4 --- UGC ?=- UGC number
22- 26 I5 --- NGC ?=- NGC number
27 A1 --- m_NGC [A] Multiplicity index on NGC
29- 32 I4 --- IC ?=- IC number
34- 35 I2 h RAh Right Ascension (J2000.0)
37- 38 I2 min RAm Right Ascension (J2000.0)
40- 44 F5.2 s RAs Right Ascension (J2000.0)
46 A1 --- DE- Declination sign (J2000.0)
47- 48 I2 deg DEd Declination (J2000.0)
50- 51 I2 arcmin DEm Declination (J2000.0)
53- 56 F4.1 arcsec DEs Declination (J2000.0)
58- 77 A20 --- MType Morphological type
79- 83 F5.2 Mpc Dist Distance
85- 89 F5.2 mag Kstot K-band magnitude
91- 95 F5.2 arcmin D(g) g-band diameter (at 24.5mag/sq.arcsec)
97-101 F5.2 deg i [0/90] Inclination
103-107 I5 km/s Vel [-273/12000] Recessional velocity
109-127 A19 --- Memb Membership (cluster name or "Background")
130 I1 --- HI [0/1] HI availability (0 = non-available data)
132 I1 --- CO [0/1] CO availability (0 = non-available data)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- HRS [1/323] Source ID <[BEC2010] HRS NNN> in Simbad
4 A1 --- m_HRS [NSEW] Multiplicity index on HRS
6- 8 I3 arcsec oRA [-55/55] Pointing offset in right ascension
10- 12 I3 arcsec oDE [-55/55] Pointing offset in declination
14 I1 --- Det [0/1] Detection code: 1=detected, 0=undetected
15 A1 --- u_Det [?] Uncertainty flag on Det
17 I1 --- Run [1/4] Observing run (1-3 in 2008, 4 in 2009)
19- 22 F4.2 mK rms rms in T*R scale
24- 25 I2 --- Nscan Number of 6-min scans (ON+OFF)
27- 30 F4.2 K.km/s I(CO) Intensity of the CO line in T*R scale
(upper limit for undetected galaxies)
32- 35 F4.2 K.km/s e_I(CO) ?=- Uncertainty on the CO line in T*R scale
37 A1 --- --- [(]
38- 41 I4 km/s Vel ?=- Recessional velocity
42 A1 --- u_Vel [)] Uncertainty flag on Vel
44- 46 I3 km/s WCO ?=- Width of the CO line
47 A1 --- n_WCO [a] WCO determined by Gaussian fit (1)
49 A1 --- --- [(]
50- 56 E7.3 K Tpeak ?=- Temperature of the peak emission
57 A1 --- u_Tpeak [)] Uncertainty flag on Tpeak
--------------------------------------------------------------------------------
Note (1): Note as follows:
a = width of the CO line has been determined using the Gaussian definition
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table10.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- HRS [1/323] Source ID <[BEC2010] HRS NNN> in Simbad
5- 10 A6 --- Tel Telescope
12 I1 --- Nb [1/9] Number of independent beams
14- 16 I3 arcsec theta [22/100] Beam FWHM θ
18 I1 --- Det [0/1] Code for detection (1=detected,
0=undetected)
20- 26 F7.2 K.km/s I(CO) ?=- Intensity of the CO line (see "Tscale")
28- 32 F5.2 mK rms [0/89] rms in T*R scale
34- 37 F4.1 km/s dVel [5/31] Velocity resolution
39- 44 A6 --- Tscale Temperature scale (T*A, T*R or Tmb)
46- 47 I2 --- Ref Reference code, in refs.dat file
49- 53 F5.1 Jy/K Jy/K Calibration constant to transform
temperature brightnesses into CO fluxes
55- 62 F8.2 Jy.km/s SCO3D Extrapolated CO flux SCO3D
(upper limit if undetected)
64- 68 F5.3 --- ff [0/1.6] Filling factor of the central beam (G1)
70 I1 --- fu [0/1] data used flag: 1=used, 0=dropped
72 I1 --- Notes [1/3]? Notes (1)
--------------------------------------------------------------------------------
Note (1): Notes as follows:
1 = assumed T*R scale
2 = transformed from the original Table to this scale
3 = partly mapped galaxy, with an assumed beam size θ=36arcsec
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table11.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- HRS [1/323] Source ID
<[BEC2010] HRS NNN> in Simbad
5 I1 --- Det [0/1]?=- Code for CO detection (1=detected,
0=undetected)
7- 13 F7.2 Jy.km/s SCO ?=- Total CO flux
15- 21 F7.2 Jy.km/s e_SCO ?=- Error on the total CO flux
23- 27 F5.2 --- S/N ?=- Signal to noise
29- 33 F5.3 --- ff [0/1.6]?=- Filling factor (G1)
34- 36 A3 --- n_SCO Note on SCO determination (1)
38- 42 F5.2 [Msun] logM(H2)c ?=- Logarithm of the molecular gas mass
(assuming the standard galactic XCO)
44- 47 F4.2 [Msun] logM(H2)v ?=- Logarithm of the molecular gas mass
(assuming a luminosity dependent XCO)
49- 56 A8 --- Ref References to the CO data, in refs.dat file
--------------------------------------------------------------------------------
Note (1): Note as follows:
MA = total CO flux has been determined from Major Axis mapping
Int = total CO flux has been determined from Integrated data
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table12.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 I3 --- HRS [1/323] Source ID <[BEC2010] HRS NNN> in Simbad
5 I1 --- Det1 [0/1]?=- Code for HI detection: 1=detected,
0=undetected
7- 11 F5.2 mJy rms [0/28]?=- rms (when known)
13- 18 F6.2 Jy.km/s SHI ?=- Total HI flux
(upper limit for undetected galaxies)
20- 24 F5.2 [Msun] logM(HI) ?=- Logarithm of the HI mass
26- 28 I3 km/s WHI ?=- Width of the HI line
30- 34 F5.2 [-] HI-def [-0.65/2.08]?=- HI-deficiency parameter (2)
36 I1 --- f_WHI [1/2]?=- Flag: 1=WHI corrected for broadening
and cosmological redshift; 2=uncorrected
38- 39 I2 --- Ref1 ?=- Reference to the HI data, in refs.dat file
--------------------------------------------------------------------------------
Note (2): the deficiency parameter is defined as the difference, in
logarithmic scale, between the expected and the observed HI mass of a
galaxy of given angular size and morphological type (see Boselli and
Gavazzi, 2009A&A...508..201B 2009A&A...508..201B)
--------------------------------------------------------------------------------
Byte-by-byte Description of file: refs.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Ref Reference number
4- 22 A19 --- BibCode BibCode
24- 46 A23 --- Aut Author's name
48- 83 A36 --- Com Comments
--------------------------------------------------------------------------------
Byte-by-byte Description of file: sp/*
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
4- 9 F6.1 km/s HV Heliocentric velocity
14- 24 E11.5 K TR* Temperature scale
--------------------------------------------------------------------------------
Global Notes:
Note (G1): the filling factor is defined as the ratio of the surface
covered by the beam of the telescope to the optical area of the galaxy
Acknowledgements:
Alessandro Boselli, alessandro.boselli(at)lam.fr
History:
* 08-Apr-2014: On-line version
* 12-Jun-2015: Corrected table12, from author
(End) Patricia Vannier [CDS] 18-Nov-2013