J/AJ/147/13ivo://CDS.VizieR/J/AJ/147/13doi:10.26093/cds/vizier.51470013CDSKarachentsev I.D.Kaisina E.I.Makarov D.I.2017-12-15T10:55:42Z2014-08-28T12:22:14ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiesThe Updated Nearby Galaxy Catalog (UNGC) contains the most comprehensive summary of distances, radial velocities, and luminosities for 800 galaxies located within 11Mpc from us. The high density of observables in the UNGC makes this sample indispensable for checking results of N-body simulations of cosmic structures on a ~1Mpc scale. The environment of each galaxy in the UNGC was characterized by a tidal index {Theta}_1_, depending on the separation and mass of the galaxy's main disturber (MD). We grouped UNGC galaxies with a common MD in suites, and ranked suite members according to their {Theta}_1_. All suite members with positive {Theta}_1_ are assumed to be physical companions of the MD. About 58% of the sample are members of physical groups. The distribution of suites by the number of members, n, follows a relation N(n)~n^-2^. The 20 most populated suites contain 468 galaxies, i.e., 59% of the UNGC sample. The fraction of MDs among the brightest galaxies is almost 100% and drops to 50% at M_B_=-18^m^. We discuss various properties of MDs, as well as galaxies belonging to their suites. The suite abundance practically does not depend on the morphological type, linear diameter, or hydrogen mass of the MD, the tightest correlation being with the MD dynamical mass. Dwarf galaxies around MDs exhibit well-known segregation effects: the population of the outskirts has later morphological types, richer HI contents, and higher rates of star formation activity. Nevertheless, there are some intriguing cases where dwarf spheroidal galaxies occur at the far periphery of the suites, as well as some late-type dwarfs residing close to MDs. Comparing simulation results with galaxy groups, most studies assume the Local Group is fairly typical. However, we recognize that the nearby groups significantly differ from each other and there is considerable variation in their properties. The suites of companions around the Milky Way and M31, consisting of the Local Group, do not quite seem to be a typical nearby group. The multiplicity of nearby groups of the number of their physical members can be described by the Hirsh-like index h_g_=9, indicating that the Local Volume contains nine groups with populations exceeding nine companions to their MDs.2014AJ....147...13Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/147/13CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/145/101 : Updated nearby galaxy catalog (Karachentsev+, 2013)J/ApJ/676/184 : Peculiar motion away from the Local Void (Tully+, 2008)J/AJ/127/2031 : Catalog of neighboring galaxies (Karachentsev+, 2004)http://www.sao.ru/lv/lvgdb : Database on the Local Volume Galaxieshttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/147/13https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/147/13http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/147/13https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/147/13https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/147/13http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/147/13GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/147/13/table1 (Local Volume (LV) galaxies ranked according to their main disturbers and tidal indices)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/147/13/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/147/13/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/147/13/table1?GETtext/xml+votable180.050000true149.38569.0430560.0055555555555555565/6878 6/287 393 396 619 739 764 816 901 955 973 1768 2031 2079 2110 2119 2120 2121 2122 2130 2144 2155 2169 2216 2234 2272 2282 2297 2313 2320 2321 2332 2377 2382 2409 2417 2565 2567 2572 2573 2604 2611 2622 2628 2668 2676 2709 2717 2728 2746 2755 2758 2767 2774 2777 2781 2789 2830 2852 2873 2892 3042 3250 3260 3278 3299 3304 3381 3389 3436 3483 3506 3543 3558 3561 3699 3860 4121 4181 4313 4410 4419 4433 4507 4511 4518 4522 4533 4537 4650 4928 5008 5039 5067 5142 5174 5180 5196 5203 5230 5283 5285 5287 5329 5339 5419 5489 5504 5584 5607 5633 5635 5636 5641 5862 5876 5890 5939 5959 5975 5978 5982 5983 5987 5995 6021 6108 6399 6502 6560 6752 6772 6773 6921 6981 7243 7265 7416 7471 7483 7523 7530 7577 7579 7580 7582 7583 7599 7600 7602 7603 7604 7606 7607 7609 7611 7612 7618 7622 7624 7627 7628 7649 7650 7743 7769 7786 7799 7878 7941 7946 7952 7956 7970 8028 8120 8745 8908 10153 10183 10265 10266 10278 10308 10444 10479 10532 10538 10561 10607 10627 10637 10656 10659 10671 10755 10756 10761 10762 10767 10769 10778 10784 10787 10793 10798 10799 10800 10808 10809 10810 10815 10818 10840 10841 10842 10847 10856 10863 10878 10881 10883 10888 10889 10896 10898 10899 10900 10901 10905 10908 10910 10911 10929 10934 10935 10941 10943 10945 10950 10954 10959 10970 10976 10977 10979 10980 10981 10999 11006 11016 11019 11027 11030 11037 11041 11043 11045 11072 11080 11084 11092 11093 11120 11127 11140 11143 11161 11172 11227 11232 11270 11434 11444 11448 11450 11639 11691 11696 11719 11802 11933 11944 11961 12199 12687 13505 13637 13655 13667 13668 13672 14149 15558 15560 15585 15590 15592 15594 15595 16016 16076 16414 16441 16459 16519 16544 16580 16595 16605 16655 16682 16687 16695 16697 16701 16744 16779 16833 17165 17229 18041 18397 18398 18419 18429 18926 19678 19779 19833 19990 20262 20416 20437 20440 20476 20510 20532 20605 20769 20809 20814 20929 20931 20964 21026 21027 21089 21362 21363 22039 22348 22379 22427 22495 22751 22995 23593 23609 23634 23684 24437 24602 24632 24713 24715 24912 24934 24952 24956 25077 25079 25080 25081 25083 25344 25425 25428 25431 25761 25779 26047 26055 26130 26134 26136 26148 26259 26265 26270 26294 26315 26328 26329 26342 26360 26362 26365 26487 26554 26680 26790 26796 26803 26808 26811 26814 26858 26980 27000 27024 27025 27030 27055 27152 27207 27229 27285 27351 27383 27441 27482 27487 27496 27502 27504 27506 27507 27508 27510 27516 27518 27519 27568 27580 27588 27591 27596 27600 27603 27604 27611 27613 27643 27677 27715 27719 27721 27729 27736 27750 27862 27865 27890 27904 27916 27926 27932 27937 27940 27946 27982 28003 28015 28025 28032 28035 28077 28087 28100 28126 28136 28147 28149 28152 28156 28167 28172 28173 28178 28186 28200 28201 28288 28315 28356 28361 28471 28475 28476 28492 28493 28494 28496 28505 28510 28511 28518 28521 28526 28535 28536 28539 28540 28543 28614 28630 28631 28636 28637 28666 28830 29699 29718 30677 31692 32995 33096 33193 33317 33571 33655 33656 33685 33742 33986 34189 34351 34471 34476 34478 34641 34755 35206 35214 35243 35452 35482 35512 35536 35720 35969 36164 36900 36974 37437 38102 38259 38329 38390 38639 38673 38841 38846 38872 38941 39043 39100 39575 39800 39909 39926 39960 40111 40124 40156 40158 40160 40199 40228 40243 40328 40335 40428 40581 40617 41122 41132 41432 41586 41760 41849 41917 41946 41949 41968 41987 43100 43222 43231 43233 43234 43245 43246 43254 43257 43258 43262 43293 43307 43333 43393 43395 43400 43403 43420 43427 43430 43438 43451 43499 43581 43602 43604 43605 43610 43634 43638 43706 43727 43763 43796 43797 43809 43828 43832 43845 43874 43878 43881 43883 43884 43921 43924 43925 43950 43958 43972 44013 44028 44168 45305 45423 45674 45732 45745 45746 45748 45749 45777 45914 46314 46319 46339 46399 46460 46462 46492 46545 46549 46597 46660 46947 47952 48035 48942https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/147/13?format=asciiOpticaldefaultJ/AJ/147/13/table1Local Volume (LV) galaxies ranked according to their main disturbers and tidal indicesSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGalaxy name in well-known catalogsmeta.id;meta.mainchara26? Galaxy linear diameter (1)kpcphys.size.diameterfloatnullableBMag? Absolute B-band magnitude (2)magphot.mag;em.opt.BfloatnullablelogM*? Galaxy log stellar masslog(solMass)phys.massfloatnullablelogM26? Galaxy log dynamic mass (3)log(solMass)phys.massfloatnullablel_logMHI[<] Upper limit flag on logMHImeta.code.errorcharlogMHI? Galaxy log of the hydrogen masslog(solMass)phys.massfloatnullableTi1[-2.4/6.6] Tidal index {Theta}_1_ (4)src.class.structfloatMDMain disturber's namemeta.id.assoccharD[0.01/11] Distance to the galaxyMpcpos.distancefloatDv? Line-of-sight velocity {Delta}v of the galaxy relative to the velocity of the main disturberkm/sphys.veloc;arith.diffintnullableNm[1/53] Number of members in the suite of the main disturber to which the galaxy belongsmeta.numberintK+04Cross-match with the Catalog of neighboring galaxies of Karachentsev et al. (2004, cat. J/AJ/127/2031) within 30"meta.ref.urlintnullableNEDSimbad column added by the CDSmeta.ref.urlchar_RAPositions from 2013 catalog (Karachentsev et al. 2013AJ....145..101K) (right ascension part)degpos.eq.ra;meta.main_DEPositions from 2013 catalog (Karachentsev et al. 2013AJ....145..101K) (declination part)degpos.eq.dec;meta.main