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相关论文: Faint Companions of Isolated 2MIG Galaxies

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We have updated the classification of late-type galaxies presented in the Catalog of Isolated Galaxies (KIG) using the advanced digital sky surveys. Our search for companions around 959 KIG galaxies revealed 141 neighbors associated with…

星系天体物理 · 物理学 2021-12-22 Karachentseva V. E. , Karachentsev I. D. , Melnyk O.

We use the data of modern digital sky surveys (PanSTARRS-1, SDSS) combined with HI-line and far ultraviolet (GALEX) surveys to reclassify 165 early-type galaxies from the Catalog of Isolated Galaxies (KIG). As a result, the number of E- and…

星系天体物理 · 物理学 2021-12-22 V. E. Karachentseva , I. D. Karachentsev , O. V. Melnyk

We have searched for companion galaxies in the close environment of 98 star-forming dwarf galaxies (SFDGs) from field and low density environments, using the NASA Extragalactic Database. Most of the companions are dwarf galaxies which due…

天体物理学 · 物理学 2009-11-06 K. G. Noeske , J. Iglesias-Paramo , J. M. Vilchez , P. Papaderos , K. J. Fricke

The radial velocities are measured for 45 galaxies located in the neighborhoods of 29 likely isolated galaxies in a new catalog. We find that about 85% of these galaxies actually are well isolated objects. 4% of nearby galaxies with…

宇宙学与河外天体物理 · 物理学 2015-05-13 O. V. Melnyk , V. E. Karachentseva , I. D. Karachentsev , D. I. Makarov , I. V. Chilingarian

We search for isolated galaxies based on the automatic identification of isolated sources from the Two Micron All-Sky Survey (2MASS) followed by a visual inspection of their surroundings. We use the modified Karachentseva criterion to…

宇宙学与河外天体物理 · 物理学 2010-05-19 V. E. Karachentseva , S. N. Mitronova , O. V. Melnyk , I. D. Karachentsev

We undertook searches for isolated galaxies based on automatic selection of infrared sources from the Two Micron All-Sky Survey (2MASS) followed by a visual inspection of their surrounding. Using a modified criterion by Karachentseva…

宇宙学与河外天体物理 · 物理学 2009-08-12 V. E. Karachentseva , S. N. Mitronova , O. V. Melnyk , I. D. Karachentsev

We identify a large sample of isolated bright galaxies and their fainter satellites in the 2dF Galaxy Redshift Survey (2dFGRS). We analyse the dynamics of ensembles of these galaxies selected according to luminosity and morphological type…

天体物理学 · 物理学 2009-11-13 Peder Norberg , Carlos S. Frenk , Shaun Cole

The 2MFGC catalog we have used contains 18020 galaxies selected from the extended objects in the 2MASS infrared sky survey as having apparent ratios of the axes b/a<0.3. Most of them are spiral galaxies of later morphological types whose…

天体物理学 · 物理学 2008-11-26 I. D. Karachentsev , Yu. N. Kudrya , V. E. Karachentseva , S. N. Mitronova

We present a list of 75 isolated late-type dwarf galaxies which have no neighbors with a relative radial velocity difference of less than 500 km/s or projected separations within 500 kpc. These were selected from $\sim$2000 dwarf galaxies…

宇宙学与河外天体物理 · 物理学 2011-04-14 V. E. Karachentseva , I. D. Karachentsev , M. E. Sharina

We present a first entire-sky catalog of isolated galaxies obtained via systematic automated and visual inspections of extended sources from the Two Micron All-Sky Survey (2MASS). Based on the Karachentseva's (1973) isolation criteria, we…

天体物理学 · 物理学 2008-07-10 S. N. Mitronova , I. D. Karachentsev , V. E. Karachentseva , O. V. Melnyk

Using the NASA Extragalactic Database, we have searched the close environment of 98 star-forming dwarf galaxies (SFDGs) from field- and low density environments for companion galaxies. Most of the found companions are dwarf galaxies,…

天体物理学 · 物理学 2007-05-23 K. G. Noeske , J. Iglesias-Paramo , J. M. Vilchez , P. Papaderos , K. J. Fricke

We present a revised and expanded catalog of satellite galaxies of a set of isolated spiral galaxies similar in luminosity to the Milky Way. This sample of 115 satellites, 69 of which were discovered in our multifiber redshift survey, is…

天体物理学 · 物理学 2009-09-25 Dennis Zaritsky , Rodney Smith , Carlos Frenk , Simon D. M. White

We compute M_260, the dynamical mass interior to a radius of 260 kpc/h, for a set of 809 isolated host galaxies in the 100k data release of the 2dF Galaxy Redshift Survey. The hosts are surrounded by 1556 satellite galaxies, as defined by a…

天体物理学 · 物理学 2009-11-07 Tereasa G. Brainerd , Michael A. Specian

We report a catalog of 509 pairs identified among 10403 nearby galaxies with line-of-sight velocities V_LG < 3500 km/s.We selected binary systems in accordance with two criteria (bounding and temporal), which require the physical pair of…

天体物理学 · 物理学 2008-12-18 I. D. Karachentsev , D. I. Makarov

Rapid advance has been made recently in accurate distance measurements for nearby ($D < 11$ Mpc) galaxies based on the magnitude of the tip of red giant branch stars resolved with the Hubble Space Telescope. We use observational properties…

星系天体物理 · 物理学 2021-09-02 Igor D. Karachentsev , Olga G. Kashibadze

We present a complete POSS II-based refinement of the optical morphologies for galaxies in the Karatchenseva's Catalog of Isolated Galaxies that forms the basis of the AMIGA project. Comparison with independent classifications made for an…

We present the first determination of the pairwise velocity dispersion of galaxies at different luminosity with the final release of the Two-Degree Field Galaxy Redshift Survey (2dFGRS). Our result surprisingly shows that the random…

天体物理学 · 物理学 2009-11-10 Y. P. Jing , G. Boerner

We present a catalog of 520 most isolated nearby galaxies with radial velocities V_LG<3500 km/s covering the entire sky. This population of "space orphans" makes up 4.8% among 10900 galaxies with measured radial velocities. We describe the…

宇宙学与河外天体物理 · 物理学 2011-03-23 I. D. Karachentsev , D. I. Makarov , V. E. Karachentseva , O. V. Melnyk

We analyze empirical relationships between the optical, near infrared, and HI characteristics of isolated galaxies from the 2MIG Catalog covering the entire sky. Data on morphological types, K_S-, and B-magnitudes, linear diameters, HI…

宇宙学与河外天体物理 · 物理学 2015-06-03 Yu. N. Kudrya , V. E. Karachentseva , I. D. Karachentsev

We compiled an all-sky catalog of 451 nearby galaxies, each having an individual distance estimate $D \la 10$ Mpc or the radial velocity $V_{LG} < 550$ km s$^{-1}$. The catalog contains data on basic optical and HI properties of the…

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