Inici     Començant     Sobreviure a l'Univers    
Inhabited Sky
    News@Sky     Astro Fotografia     La Col·lecció     Fòrum     Blog New!     FAQ     Premsa     Login  

IC 3014


Contingut

Imatges

Carregar la teva Imatge

DSS Images   Other Images


Articles Relacionats

Properties of Spiral-Peculiar Type of Kiso Ultraviolet-Excess Galaxies
We investigated the optical spectroscopic properties of 44KisoUltraviolet-excess Galaxies (KUG), which is one of the most well-knowncatalogs of blue galaxies. All of our sample galaxies belong to thespiral-peculiar (Sp) type, the morphological class of spiral galaxy witha peculiar bar and/or a nucleus in KUGs. Since the Sp type is consideredto be the most peculiar group among KUGs, and about 45% of the KUGs havethe Sp type, a detailed study of the Sp type is crucial to understandthe characteristics of the KUG. The sample galaxies have luminosities inthe B-band of about 108 to less than 1010 in solarunit, and a median physical size of 13kpc. From the nuclear spectra, wedetermined line excitation sources in 39 galaxies. Among them, wedetected four AGNs reliably: two Seyfert1s, one Seyfert2, and one LINER.Other sample galaxies show moderately star-forming activity. For thiscategory of ordinary KUG group, the mode of the Hα equivalentwidth at the nuclear region is a bin of 40 to 60Å. Three galaxieshave extreme starburst nuclei with an Hα equivalent width of morethan 200Å. The internal extinction of AV is about0.8mag, which suggests that the star-forming nuclei are not heavilyenshrouded by dust.

The UZC-SSRS2 Group Catalog
We apply a friends-of-friends algorithm to the combined Updated ZwickyCatalog and Southern Sky Redshift Survey to construct a catalog of 1168groups of galaxies; 411 of these groups have five or more members withinthe redshift survey. The group catalog covers 4.69 sr, and all groupsexceed the number density contrast threshold, δρ/ρ=80. Wedemonstrate that the groups catalog is homogeneous across the twounderlying redshift surveys; the catalog of groups and their membersthus provides a basis for other statistical studies of the large-scaledistribution of groups and their physical properties. The medianphysical properties of the groups are similar to those for groupsderived from independent surveys, including the ESO Key Programme andthe Las Campanas Redshift Survey. We include tables of groups and theirmembers.

Arcsecond Positions of UGC Galaxies
We present accurate B1950 and J2000 positions for all confirmed galaxiesin the Uppsala General Catalog (UGC). The positions were measuredvisually from Digitized Sky Survey images with rms uncertaintiesσ<=[(1.2")2+(θ/100)2]1/2,where θ is the major-axis diameter. We compared each galaxymeasured with the original UGC description to ensure high reliability.The full position list is available in the electronic version only.

KISO survey for ultraviolet-excess galaxies. VI.
Not Available

Radial velocities of galaxies in the neighborhood of groups of galaxies. III
New determinations of the radial velocities for 31 galaxies in theneighborhood of groups of galaxies are reported. The observations aredescribed, and data are given for the galaxies in a table, including thenumber of spectra used, the radial velocity of each galaxy corrected forthe motion of the sun and the earth, the internal error in themeasurement, estimates of the quality of the spectra, the spectral linesused in the calculation of the velocities, the radial velocitiesdetermined by other authors, and the membership of the objects ingalactic systems. The data from other authors are used to determine thereal (external) accuracy of the present determinations, and goodagreement is found.

A survey of galaxy redshifts. IV - The data
The complete list of the best available radial velocities for the 2401galaxies in the merged Zwicky-Nilson catalog brighter than 14.5mz and with b (II) above +40 deg or below -30 deg ispresented. Almost 60 percent of the redshifts are from the CfA surveyand are accurate to typically 35 km/s.

Enviar un nou article


Enllaços Relacionats

  • - No s'ha trobat enllaços -
Enviar un nou enllaç


Membre dels grups següents:


Dades d'Observació i Astrometria

Constel·lació:Canes Venatici
Ascensió Recta:12h08m37.00s
Declinació:+38°49'54.0"
Dimensions aparents:0.813′ × 0.575′

Catàlegs i designacions:
Noms Propis   (Edit)
ICIC 3014
HYPERLEDA-IPGC 38562

→ Sol·licitar més catàlegs i designacions de VizieR