J/A+A/596/A86 Lynx-Cancer void sample galaxies HI data (Pustilnik+, 2016)
Study of galaxies in the Lynx-Cancer void.
VI. H I-observations with Nancay Radio Telescope.
Pustilnik S.A., Martin J.-M.
<Astron. Astrophys., 596, A86 (2016)>
=2016A&A...596A..86P 2016A&A...596A..86P (SIMBAD/NED BibCode)
ADC_Keywords: Galaxies, radio ; H I data ; Radial velocities
Keywords: galaxies: dwarf - galaxies: evolution -
galaxies: distances and redshifts -
large-scale structure of Universe - radio lines: galaxies
Abstract:
Void population consists mainly of late-type and low surface
brightness (LSB) dwarf galaxies, whose atomic hydrogen is the main
component of their baryonic matter. Therefore observations of void
galaxy HI are mandatory to understand both their evolution and
dynamics.
Our aim was to obtain integrated HI parameters for a fainter part of
the nearby Lynx-Cancer void galaxy sample (total of 45 objects) with
the Nancay Radio Telescope (NRT) and to conduct the comparative
analysis of the whole 103 void galaxies with known HI data with a
sample of similar galaxies residing in denser environments of the
Local Volume.
For HI observations we used the NRT with its sensitive
antenna/receiver system FORT and standard processing. The comparison
of the void and "control" samples on the parameter M(HI)/LB is
conducted with the non-parametric method "The 2x2 Contingency Table
test".
We obtained new HI data for about 40% of the Lynx-Cancer galaxy
sample. Along with data from the literature, we use for further
analysis data for 103 void objects. The proxy of the evolutional
parameter M(HI)/LB of the void sample is compared with that of 82
galaxies of morphological types 8-10 residing in the Local Volume
groups and aggregates.
At the confidence level of P=0.988, we conclude that for the same
luminosity, these void galaxies are systematically gas-richer, in
average by ∼39%. This result is consistent with the authors' earlier
conclusion on the smaller gas metallicities and evidences for the
slower low-mass galaxy evolution in voids.
Description:
The HI observations were made during the period 2007-2013 with the
Nancay Radio Telescope (NRT).
In Table A.1 we present the main parameters taken from NED1, SDSS2 or
from the literature for all observed 45 void galaxies.
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* *
* Sorry, but the author(s) never supplied the fits spectra as *
* announced in the paper *
* *
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File Summary:
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FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
tablea1.dat 96 45 Parameters of the Lynx-Cancer void sample
galaxies observed with NRT
tablea2.dat 92 45 HI parameters of the observed Lynx-Cancer void
sample galaxies
tablea3.dat 91 59 Lynx-Cancer void sample galaxies with HI data
from literature
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See also:
J/MNRAS/415/1188 : Galaxies in the Lynx-Cancer void (Pustilnik+, 2011)
J/other/AstBu/69.247 : Galaxies in Lynx-Cancer void (Perepelitsyna+, 2014)
Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- SName Short IAU name (JHHMM+DDMM)
11 A1 --- m_SName [ab] Multiplicity index on SName
12 A1 --- n_SName [*1] Note on SName (1)
14- 24 A11 --- Other Other Name or prefix (SDSS or HIPASS)
26- 30 A5 --- MType Morphological type
32- 33 I2 h RAh Right ascension (J2000)
35- 36 I2 min RAm Right ascension (J2000)
38- 42 F5.2 s RAs Right ascension (J2000)
44 A1 --- DE- Declination sign (J2000)
45- 46 I2 deg DEd Declination (J2000)
48- 49 I2 arcmin DEm Declination (J2000)
51- 54 F4.1 arcsec DEs Declination (J2000)
56- 59 I4 km/s Vopt ?=- Heliocentric velocity from optical data
(when available)
61- 62 I2 km/s e_Vopt ? rms uncertainty on Vopt
64- 67 I4 km/s VHI ?=- Heliocentric velocity from HI data
69- 70 I2 km/s e_VHI ? rms uncertainty on VHI
72- 76 F5.2 mag Bmagtot Total B magnitude (2)
78- 83 F6.2 mag BMAG0 Absolute B magnitude corrected for the Galaxy
extinction AB according to Schlafly &
Finkbeiner (2011ApJ...737..103S 2011ApJ...737..103S) (3)
85- 96 A12 --- AName Alternative name
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Note (1): Notes as follows:
* = new object, taken from the updated Lynx-Cancer void sample
(Pustilnik et al. 2016, and in prep.)
1 = probable artifact. See text in Sect. 4.
Note (2): In most of the cases, this value is calculated from the total g ad r
magnitudes following Lupton et al. (2005,
http://www.sdss.org/dr5/algorithms/sdssUBVRITransform.html#Lupton2005).
The latter values are obtained in Paper IV (Perepelitsyna et al., 2014,
Cat. J/other/AstBu/69.247) on the photometry of the SDSS DR7
(Abazajian et al., 2009ApJS..182..543A 2009ApJS..182..543A) images.
For galaxies located outside of the SDSS footprint, the B-band magnitudes are
adopted from Pustilnik & Tepliakova (2011, Cat. J/MNRAS/415/1188) where
respective references are given.
The only exception is J0802+0525 for which its B-magnitude is estimated
directly from its SDSS model g and r values since due to a nearby bright
star we were unable to perform own photometry
Note (3): The adopted distances are based on heliocentric velocities V(HI)
from Table A.2. They are calculated according to the prescriptions given in
Paper I (Pustilnik & Tepliakova, 2011, Cat. J/MNRAS/415/1188), accounting for
the large peculiar velocity in this region ΔV~-300km/s
(Tully et al., 2008, Cat. J/ApJ/676/184).
For a few objects, distances were determined using the velocity-independent
(mainly Tip of RGB) methods.
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Byte-by-byte Description of file: tablea2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- SName Short IAU name (JHHMM+DDMM)
11 A1 --- m_SName [ab] Note on SName (1)
12- 13 A2 --- n_SName [* ] Note on SName (1)
15- 18 I4 km/s VHI ?=- Heliocentric velocity of the detected
HI line
20- 21 I2 km/s e_VHI ? rms uncertainty on VHI
23- 27 F5.2 Mpc Dist Adopted distance as in Paper I
(Cat. J/MNRAS/415/1188)
29- 31 I3 km/s W50 ?=- Velocity width of the HI profile at
50% of peak
33- 34 I2 km/s e_W50 ? rms uncertainty on W50
36- 38 I3 km/s W20 ?=- Velocity width of the HI profile at
20% of peak
40- 41 I2 km/s e_W20 ? rms uncertainty on W20
43- 48 F6.3 Jy.km/s FHI Integrated flux of detected HI signal
50- 54 F5.3 Jy.km/s e_FHI rms uncertainty on FHI
56 A1 --- l_logMHI Limit flag on logMHI
57- 60 F4.2 [Msun] logMHI Total HI mass
62- 66 F5.3 [Msun] e_logMHI rms uncertainty on logMHI
68 A1 --- l_MHI/LB Limit flag on MHI/LB
69- 73 F5.2 Msun/Lsun MHI/LB Ratio of HI mass to B luminosity
75- 79 F5.3 Msun/Lsun e_MHI/LB rms uncertainty on MHI/LB
81- 83 I3 min Time Total time ON-source
85- 87 F3.1 mJy rms rms of noise near the HI peak at the velocity
resolution of 10.4km/s
89- 92 F4.1 --- S/N Signal-to-noise ratio for peak value of the
respective HI profile
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Note (1): Notes as follows:
* = HI parameters are adopted based on GMRT data from Chengalur &
Pustilnik (2013MNRAS.428.1579C 2013MNRAS.428.1579C)
** = distance as for IC2520 = J0956+2713, a massive component of pair with
Vhel=1243km/s
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Byte-by-byte Description of file: tablea3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 10 A10 --- SName Short IAU name (JHHMM+DDMM)
12 A1 --- n_SName [*] Note on SName (1)
14- 25 A12 --- Other Other Name or prefix (SDSS or HIPASS)
27- 30 A4 --- MType Morplhological type
32- 33 I2 h RAh Right ascension (J2000)
35- 36 I2 min RAm Right ascension (J2000)
38- 42 F5.2 s RAs Right ascension (J2000)
44 A1 --- DE- Declination sign (J2000)
45- 46 I2 deg DEd Declination (J2000)
48- 49 I2 arcmin DEm Declination (J2000)
51- 54 F4.1 arcsec DEs Declination (J2000)
56- 59 I4 km/s Vopt ?=- Heliocentric velocity from optical data
(when available)
61- 65 F5.2 mag Bmagtot Total B magnitude (2)
67- 72 F6.2 mag BMAG0 Absolute B magnitude corrected for the Galaxy
extinction AB according to Schlafly &
Finkbeiner (2011ApJ...737..103S 2011ApJ...737..103S)
74- 79 F6.2 Jy.km/s FHI Integrated flux of detected HI signal
81- 85 F5.2 Msun/Lsun MHI/LB Ratio of HI mass to B luminosity
87- 91 A5 --- Ref Reference (2)
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Note (1): Notes as follows:
* = Galaxy from the updated sample
Note (2): References as follows:
HR89 = Huchtmeier & Richter (1989, Cat. VIII/68)
Sch90 = Schneider et al. (1990ApJS...72..245S 1990ApJS...72..245S)
Sch92 = Schneider et al. (1992, Cat. J/ApJS/81/5)
Sp05 = Springob et al. (2005ApJS..160..149S 2005ApJS..160..149S, Cat. VIII/77)
KKH01 = Karachentsev et al. (2001, Cat. J/A+A/366/428)
Sw02 = Swaters et al. (2002, Cat. J/A+A/390/863)
MV00 = Matthews & van Driel (2000A&AS..143..421M 2000A&AS..143..421M)
CP13 = Chengalur & Pustilnik (2013MNRAS.428.1579C 2013MNRAS.428.1579C)
AL11 = Haynes et al. (2011, Cat. J/AJ/142/170)
Beg08 = Begum et al. (2008MNRAS.386.1667B 2008MNRAS.386.1667B)
ONe04 = O'Neil (2004, Cat. J/AJ/128/2080)
MU08 = Matthews & Uson (2008AJ....135..291M 2008AJ....135..291M)
Ch06 = Chengalur et al. (2006MNRAS.371.1849C 2006MNRAS.371.1849C)
PMM16 = Pustilnik et al. (2016MNRAS.463..670P 2016MNRAS.463..670P)
Ch15 = Chengalur et al. (2015MNRAS.448.1634C 2015MNRAS.448.1634C)
Can14 = Cannon et al. (2014ApJ...787L...1C 2014ApJ...787L...1C)
PM07 = Pustilnik & Martin (2007A&A...464..859P 2007A&A...464..859P)
Hir16 = Hirschauer et al. (2016ApJ...822..108H 2016ApJ...822..108H)
PB11 = Popping & Braun (2011, Cat. J/A+A/528/A28)
CPE16 = Chengalur et al. (2015MNRAS.448.1634C 2015MNRAS.448.1634C)
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History:
From electronic version of the journal
References:
Pustilnik & Tepliakova, Paper I 2011MNRAS.415.1188P 2011MNRAS.415.1188P, J/MNRAS/415/1188
Pustilnik et al., Paper II 2011AstBu..66..255P 2011AstBu..66..255P
Pustilnik et al., Paper III 2011MNRAS.417.1335P 2011MNRAS.417.1335P
Pustilnik et al., Paper IV 2014AstBu..69..247P 2014AstBu..69..247P, J/other/AstBu/69.247
Chengalur et al., Paper V 2015MNRAS.448.1634C 2015MNRAS.448.1634C
Pustilnik et al., Paper VII 2016MNRAS.463..670P 2016MNRAS.463..670P
(End) Patricia Vannier [CDS] 21-Mar-2017