Zobrazeno 1 - 10
of 201
pro vyhledávání: '"Karachentseva, V. E."'
We report on the discovery of three large diffuse dwarf (LDD) galaxies located in isolated triple systems. They have effective diameters of (3.6-10.0) kpc and effective surface brightness of (26.2--27.3)$^m/$sq.arcsec. We note that the LDD galaxies t
Externí odkaz:
http://arxiv.org/abs/2408.14128
Publikováno v:
Astrophysics,Vol.66,N.4 (2023)
We undertook a search for new nearby dwarf galaxies outside the known groups in the Local Volume using the data on DESI Legacy Imaging Surveys. In a wide sky area of $\sim$5000 square degrees directed toward the Local Void, we found only 12 candidate
Externí odkaz:
http://arxiv.org/abs/2312.04930
We undertook a search for new dwarf galaxies in the Leo-I group using the data from the DECaLS digital sky survey. Five new presumed members of this group have been found in a wide vicinity of ${\rm M}\,105 ({\rm NGC}\,3379$). Currently, the group ha
Externí odkaz:
http://arxiv.org/abs/2302.10948
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 S0-type g
Externí odkaz:
http://arxiv.org/abs/2104.06743
Estimates of the integrated (SFR) and specific (sSFR) rates of star formation are given for 181 galaxies of later Sc, Scd, and Sd types seen almost face-on. Their SFRs were determined from FUV fluxes in the GALEX survey. The median values of the sSFR
Externí odkaz:
http://arxiv.org/abs/2005.12555
Autor:
Kaisin, S. S., Karachentsev, I. D., Hernandez-Toledo, H., Gutierrez, L., Karachentseva, V. E.
We present the H$\alpha$ images of ultra-flat (UF) spiral galaxies seen practically edge-on. The galaxies have the angular diameter in the $B$ band $a> 1.9^{\prime}$ and the apparent axial ratio $(a/b) >10$. We found that their H$\alpha$ images look,
Externí odkaz:
http://arxiv.org/abs/2003.06824
We use a sample of 220 face-on bulge-less galaxies situated in the low density environment to estimate their total mass via orbital motions of supposed rare satellites. Our inspection reveals 43 dwarf companions having the mean projected separation o
Externí odkaz:
http://arxiv.org/abs/1904.13155
We present a list of 220 face-on, almost bulgeless galaxies assumed to be counterparts to the objects from the Reference Flat Galaxy Catalog (RFGC). We selected the Sc, Scd and Sd-type galaxies according to their apparent axial ratio $log(r_{25}) < 0
Externí odkaz:
http://arxiv.org/abs/1902.09892
We present properties of the low-surface-brightness galaxy KDG 218 observed with the HST/ACS. The galaxy has a half-light (effective) diameter of $a_e =47^{\prime\prime}$ and a central surface brightness of $SB_V(0) = 24.4^m/sq^{\prime\prime}$. The g
Externí odkaz:
http://arxiv.org/abs/1711.06074
Autor:
Karachentsev, I. D., Makarova, L. N., Tully, R. B., Rizzi, L., Karachentseva, V. E., Shaya, E.
We report HST/ACS observations of two nearby gas-rich dwarf galaxies: DDO 161 and UGCA 319. Their distances determined via the Tip of the Red Giant Branch are 6.03 (-0.21/+0.29) Mpc and 5.75+-0.18 Mpc, respectively. The galaxies form an isolated pair
Externí odkaz:
http://arxiv.org/abs/1704.07648