18 papers · 1 filter
The entire-sky catalog of isolated galaxies selected from 2MASS
S. N. Mitronova, I. D. Karachentsev, V. E. Karachentseva +1
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).…
H-alpha Survey of the Local Volume: Isolated Southern Galaxies
S. S. Kaisin, A. V. Kasparova, A. Yu. Knyazev +1
We present our H-alpha observations of 11 isolated southern galaxies: SDIG, PGC 51659, E 222-010, E 272-025, E 137-018, IC 4662, Sag DIG, IC 5052, IC 5152, UGCA 438, and E149-003,…
Local dark energy: HST evidence from the vicinity of the M 81/M 82 galaxy group
A. D. Chernin, I. D. Karachentsev, O. G. Kashibadze +5
The Hubble Space Telescope observations of the nearby galaxy group M 81/M 82 and its vicinity indicate that the expansion outflow around the group is dominated by the antigravity o…
A view of the M81 galaxy group via the H-alpha window
Igor D. Karachentsev, Serafim S. Kaisin
We present images for 36 galaxies of the M81 group obtained in the H-alpha line. Estimates of the H-alpha flux and star formation rate, SFR, are avialable now for all the known mem…
Peculiar Velocities of 3000 Spiral Galaxies from the 2MFGC Catalog
I. D. Karachentsev, Yu. N. Kudrya, V. E. Karachentseva +1
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 th…
The very local Hubble flow: Simulating transition from chaos to order
A. D. Chernin, I. D. Karachentsev, M. J. Valtonen +3
The physical nature of the very local (<3 Mpc) Hubble flow is studied on the basis of the recent high precision observations in the Local Volume. A model including both analytical…