Catalog of isolated galaxies selected from the 2MASS survey

Караченцева, В. Е.; Митронова, С. Н.; Мelnyk, О. V.; Караченцев, И. Д.

doi:10.1134/s1990341310010013

Cited by 51 publications

(71 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The T-F relation for M51-type galaxies in B-band may be fitted by M(B) = ((-2.69 ± 0.78) · (logV max )) -(14.86 ± 1.60). In Figure 7, we compared our fitting for M51-type galaxies with the T-F relation obtained by Kudrya & Karachentseva (2012) for 169 edge-on isolated galaxies (these objects are listed in the 2MIG catalogue of isolated galaxies; Karachentseva et al 2010) resulting. The T-F fitting for M51-type galaxies is flatter than the relation corresponding to isolated galaxies.…”

Section: Tully-fisher Relationmentioning

confidence: 99%

Kinematics of M51-Type Interacting Galaxies

Günthardt

Díaz

Agüero

2016

View full text Add to dashboard Cite

Abstract. We present a kinematic catalogue for 21 M51-type galaxies. It consists of radial velocity distributions observed with long slit spectroscopy along different position angles, for both the main and satellite components. We detect deviations from circular motion in most of the main galaxies of each pair, due to the gravitational perturbation produced by the satellite galaxy. However some systems do not show significant distortions in their radial velocity curves. We found some differences between the directions of the photometric and kinematic major axes in the main galaxies with a bar subsystem. The Tully-Fisher relation in the B-band and Ks-band for the present sample of M51-type systems is flatter when compared with isolated galaxies. Using the radial velocity data set, we built a synthetic normalized radial velocity distribution, as a reference for future modeling of these peculiar systems. The synthetic rotation curve, representing the typical rotation curve of the main galaxy in an M51-type pair, is near to solid body-like inside 4 kpc, and then is nearly flat within the radial range 5-15 kpc. The relative position angles between the main galaxy major axis and the companion location, as well as the velocity difference amplitude, indicate that the orbital motion of the satellite has a large projection on the main galaxy equatorial plane. In addition, the radial velocity differences between the two galaxies indicate that the satellite orbital motion is within the range of amplitudes of the main galaxy rotation curve and all the M51-type systems studied here except for one, are gravitationally bounded. 1 2 G. Gunthardt et al.

show abstract

Section: Tully-fisher Relationmentioning

confidence: 99%

Kinematics of M51-Type Interacting Galaxies

Günthardt

Díaz

Agüero

2016

View full text Add to dashboard Cite

show abstract

“…In this paper we have established the following characteristics of the scale relationships among the parameters of isolated galaxies from the 2MIG catalog [10]:…”

Section: Concluding Commentsmentioning

confidence: 99%

“…A new catalog of isolated galaxies, 2MIG [10] (electronic version at ftp://cdsarc.u-strasb.fr/pub/cats/YII/257), has recently been published. It was created using the advantages of the photometrically uniform Two Micron All-Sky Survey (2MASS) [11] which covers the entire sky.…”

Section: Introductionmentioning

confidence: 99%

“…After elimination of the non-isolated galaxies, 3227 objects, or 6.2% of the number of galaxies brighter than K S = 12.0 m with diameters greater than a K = 30 ′′ in the 2MASS XCS catalog, were included in the 2MIG catalog. The procedure for identifying isolated galaxies and the general properties of the 2MIG catalog have been described in detail elsewhere [10].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optical and HI properties of isolated galaxies in the 2MIG catalog. I. General relationships

2011

Self Cite

View full text Add to dashboard Cite

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 masses, and rotational velocities are examined. The regression parameters, dispersions, and correlation coefficients are calculated for pairs of these characteristics. The resulting relationships can be used to test the hierarchical theory of galaxy formation through numerous mergers of cold dark matter.

show abstract

“…Compiling the 2MIG catalog of isolated galaxies [14], we paid attention to the cases where a wellisolated galaxy had small companions with radial velocities close to it. In this paper, we set ourselves to organize and analyze the data on such systems.…”

Section: Introductionmentioning

confidence: 99%

Faint companions of isolated 2MIG galaxies

2011

Self Cite

View full text Add to dashboard Cite

We present the results of a search for companions around the isolated galaxies from the 2MIG catalog. Among 3227 2MIG galaxies we detected 125 objects with a total of 214 neighbors having radial velocity differences of ∆V < 500 km/s and projected separations of R p < 500 kpc relative to the 2MIG galaxies. The median luminosity of the companions is 1/25 of the luminosity of catalog galaxies, which has little effect on the dynamic isolation of the latter. The median ratio of the orbital mass to the K-luminosity determined from 60 companions of E and S0 2MIG galaxies, 63M ⊙ /L ⊙ , is signficantly greater than that found from the spiral galaxy companions (17M ⊙ /L ⊙ ). We note that a fraction of 2MIG galaxies with companions may be a part of low-contrast diffuse structures: clouds and filaments.

show abstract

Catalog of isolated galaxies selected from the 2MASS survey

Cited by 51 publications

References 15 publications

Kinematics of M51-Type Interacting Galaxies

Kinematics of M51-Type Interacting Galaxies

Optical and HI properties of isolated galaxies in the 2MIG catalog. I. General relationships

Faint companions of isolated 2MIG galaxies

Contact Info

Product

Resources

About