Contenidos
Imágenes
Subir su imagen
DSS Images Other Images
Artículos relacionados
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.
| Galaxy coordinates. II. Accurate equatorial coordinates for 17298 galaxies
Using images of the Digitized Sky Survey we measured coodinates for17298 galaxies having poorly defined coordinates. As a control, wemeasured with the same method 1522 galaxies having accurate coordinates.The comparison with our own measurements shows that the accuracy of themethod is about 6 arcsec on each axis (RA and DEC).
| New central velocity dispersions for the bulges of 53 spiral and S0 galaxies
It is pointed out that measurements of the central velocity dispersionsin the bulges of spiral and S0 galaxies have proved valuable in studiesof the comparative kinematics of bulges and elliptical galaxies. Thepresent investigation is concerned with new measurements conducted witha photon-counting Reticon system at a 1.5 m reflector and withobservations carried out with the aid of the intensified image dissectorscanner at a 2.1 m telescope. The determined velocity dispersions andredshifts are listed in two tables.
|
Enviar un nuevo artículo
Enlaces relacionados
- - No se han encontrado enlaces -
En viar un nuevo enlace
Miembro de los siguientes grupos:
|
Datos observacionales y astrométricos
Catálogos y designaciones:
|
