J/AJ/153/6 Local Tully-Fisher relation for dwarf galaxies (Karachentsev+, 2017) ================================================================================ The Local Tully-Fisher relation for dwarf galaxies. Karachentsev I.D., Kaisina E.I., Kashibadze O.G. =2017AJ....153....6K (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Galaxy catalogs ; Morphology Keywords: catalogs - cosmology: dark matter - galaxies: dwarf - galaxies: kinematics and dynamics Abstract: We study different incarnations of the Tully-Fisher (TF) relation for the Local Volume (LV) galaxies taken from Updated Nearby Galaxy Catalog. The UNGC sample contains 656 galaxies with W_50_ HI-line-width estimates, mostly belonging to low-mass dwarfs. Of them, 296 objects have distances measured with accuracies better than 10%. For the sample of 331 LV galaxies having baryonic masses logM_bar_>5.8logM_{Sun}_, we obtain a relation logM_bar_=2.49logW_50_+3.97 with an observed scatter of 0.38dex. The largest factors affecting the scatter are observational errors in K-band magnitudes and W_50_ line widths for the tiny dwarfs, as well as uncertainty of their inclinations. We find that accounting for the surface brightness of the LV galaxies or their gas fraction, specific star-formation rate, or isolation index does not essentially reduce the observed scatter on the baryonic TF diagram. We also notice that a sample of 71 dSph satellites of the Milky Way and M31 with a known stellar velocity dispersion {sigma}* tends to follow nearly the same bTF relation, having slightly lower masses than that of late-type dwarfs. Description: The raw observational data on 402 galaxies of the LV, including 71 dSphs, are compiled in Table 5. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table5.dat 81 402 Initial data for local volume galaxies -------------------------------------------------------------------------------- See also: VIII/89 : Northern HI Parkes All Sky Survey Catalogue (HIPASS) (Wong+, 2006) VIII/73 : HI Parkes All Sky Survey Catalogue (HIPASS) (Meyer+, 2004) VII/155 : Third Reference Cat. of Bright Galaxies (RC3) (de Vaucouleurs+ 1991) J/AJ/151/52 : The HIZOA-S survey (Staveley-Smith+, 2016) J/AJ/147/13 : Disturbers of nearby giant galaxies (Karachentsev+, 2014) J/AJ/146/46 : Star Formation Rate in nearby galaxies (Karachentsev+, 2013) J/AJ/145/101 : Updated nearby galaxy catalog (Karachentsev+, 2013) J/AJ/128/16 : HIPASS Bright Galaxy Catalog (Koribalski+, 2004) J/AJ/127/2031 : Catalog of neighboring galaxies (Karachentsev+, 2004) J/A+A/377/801 : Fourth list of the Karachentsev catalog (Huchtmeier+, 2001) J/A+AS/141/469 : First list of the Karachentsev catalog (Huchtmeier+, 2000) http://www.sao.ru/lv/lvgdb/ : Catalog and Atlas of the Local Volume Galaxies Byte-by-byte Description of file: table5.dat -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 18 A18 --- Name Galaxy name in well-known catalogs 20- 21 I2 h RAh Hour of Right Ascension (J2000) 23- 24 I2 min RAm Minute of Right Ascension (J2000) 26- 29 F4.1 s RAs Second of Right Ascension (J2000) 31 A1 --- DE- Sign of the Declination (J2000) 32- 33 I2 deg DEd Degree of Declination (J2000) 35- 36 I2 arcmin DEm Arcminute of Declination (J2000) 38- 39 I2 arcsec DEs Arcsecond of Declination (J2000) 41- 42 I2 --- TT [-3/10]? Morphology type code (1) 44- 47 F4.2 --- b/a [0/1]? Apparent axial ratio (2) 49- 51 I3 km/s W50 [3/510]? H I line with at 50% level from maximum (W_50_) (3) 52 A1 --- f_W50 [*] Flag "*" when W50 was determined by a relation Gaussian function (4) 54- 58 F5.2 Mpc Dist [0.02/17] Galaxy distance 60- 63 A4 --- f_Dist Flag for method used to obtain Dist (CMD, Cep, HB, RR, TRGB, or mem) (5) 65- 69 F5.2 [Lsun] logLKs [3.19/11]? Log K_S_ band luminosity (log(L_K_)) 71- 75 F5.2 [Msun] logMHI [1.12/10.31]? Log hydrogen mass (logM_HI_) 77- 81 F5.2 [Msun] logMb [2.97/10.88]? Log of baryonic mass (M_bar_) (6) -------------------------------------------------------------------------------- Note (1): According to the classification by de Vaucouleurs et al. 1976 (Cat. VII/112) defined as follows: -3 = S0^-^; -2 = S0^0^; -1 = S0^+^; 1 = Sa; 2 = Sab; 3 = Sb; 4 = Sbc; 5 = Sc; 6 = Scd; 7 = Sd; 8 = Sdm; 9 = Sm; 10 = Im. Note (2): Corresponding to the Holmberg isophote (~26.5mag/arcsec^2^) in B band. Note (3): The main source of W_50_ data was LEDA, as well as the HI Parkes All-Sky Survey (HIPASS; Koribalski et al. 2004, Cat. J/AJ/128/16; Meyer et al. 2004, Cat. VIII/73; Wong et al. 2006, Cat. VIII/89; Staveley-Smith et al. 2016, Cat. J/AJ/151/52) and the Arecibo Legacy Fast ALFA Survey (ALFALFA; Giovanelli et al. 2005AJ....130.2598G; Haynes et al. 2011, Cat. J/AJ/142/170). The references to individual W_50_ measurements are presented in the Local Volume Galaxies (LVG) database (Kaisina et al. 2012AstBu..67..115K, http://www.sao.ru/lv/lvgdb/). Note (4): Galaxy has only a dispersion and thus its W_50_ was determined by a relation Gaussian function W_*_=2{sqrt}(2ln2)*{sigma}_*_. Note (5): Methods used to obtain the distance are defined as follows: TRGB = By the Tip of the Red Giant Branch; Cep = From the Cepheid luminosity; mem = From galaxy membership in known groups with measured distances of other members; CMD = By the Color Magnitude Diagram using some prominent features or simultaneous distance and stellar population fitting; HB = By the Horizontal Branch; RR = From the luminosity of RR Lyrae stars. Note (6): Logarithm of baryonic mass with parameters {Upsilon}^*^=0.60,{eta}=1.33. See text Section 6 for additional details. -------------------------------------------------------------------------------- History: From electronic version of the journal ================================================================================ (End) Prepared by [AAS]; Sylvain Guehenneux [CDS] 13-Jun-2017