| |
 |
| Paper: |
Color Correlations in (S+S) Binary Galaxies: The Holmberg Effect |
| Volume: |
230, Galaxy Disks and Disk Galaxies |
| Page: |
469 |
| Authors: |
Hernández Toledo, H.; Puerari, I. |
| Abstract: |
Relying on his photometry of galaxies, Holmberg (1958) found, more than 40 years ago, that the color indices of paired galaxies were closely correlated. Our deep broad-band BVRI CCD photometry of 45 (S+S) pairs from the Karachentsev (1972) catalogue (see Hernández Toledo & Puerari in this volume, p. 467), and additional (B-V) color information from the literature (50 extra (S+S) pairs), help us to confirm the effect. This `Holmberg Effect' has long been remained unverified and not explained yet. |
|
|
|
|
|
