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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 (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. ************************************************************************** * * * Sorry, but the author(s) never supplied the fits spectra as * * announced in the paper * * * ************************************************************************** File Summary:
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
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
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) (3) 85- 96 A12 --- AName Alternative name
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) 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.
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
Note (1): Notes as follows: * = HI parameters are adopted based on GMRT data from Chengalur & Pustilnik (2013MNRAS.428.1579C) ** = distance as for IC2520 = J0956+2713, a massive component of pair with Vhel=1243km/s
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) 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)
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) Sch92 = Schneider et al. (1992, Cat. J/ApJS/81/5) Sp05 = Springob et al. (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) CP13 = Chengalur & Pustilnik (2013MNRAS.428.1579C) AL11 = Haynes et al. (2011, Cat. J/AJ/142/170) Beg08 = Begum et al. (2008MNRAS.386.1667B) ONe04 = O'Neil (2004, Cat. J/AJ/128/2080) MU08 = Matthews & Uson (2008AJ....135..291M) Ch06 = Chengalur et al. (2006MNRAS.371.1849C) PMM16 = Pustilnik et al. (2016MNRAS.463..670P) Ch15 = Chengalur et al. (2015MNRAS.448.1634C) Can14 = Cannon et al. (2014ApJ...787L...1C) PM07 = Pustilnik & Martin (2007A&A...464..859P) Hir16 = Hirschauer et al. (2016ApJ...822..108H) PB11 = Popping & Braun (2011, Cat. J/A+A/528/A28) CPE16 = Chengalur et al. (2015MNRAS.448.1634C)
History: From electronic version of the journal References: Pustilnik & Tepliakova, Paper I 2011MNRAS.415.1188P, J/MNRAS/415/1188 Pustilnik et al., Paper II 2011AstBu..66..255P Pustilnik et al., Paper III 2011MNRAS.417.1335P Pustilnik et al., Paper IV 2014AstBu..69..247P, J/other/AstBu/69.247 Chengalur et al., Paper V 2015MNRAS.448.1634C Pustilnik et al., Paper VII 2016MNRAS.463..670P
(End) Patricia Vannier [CDS] 21-Mar-2017
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