J/AZh/78/963 Galaxies with rows (Chernin+, 2001)
Galaxies with rows.
Chernin A.D., Kravtsova A.S., Zasov A.V., Arkhipova V.P.
<Astron. Zh. 78, 963 (2001)>
=2001AZh....78..963C 2001AZh....78..963C
=2001ARep...45..841C 2001ARep...45..841C
ADC_Keywords: Galaxy catalogs ; Morphology
Abstract:
The results of a search for galaxies with straight structural
elements, usually spiral-arm rows ("rows" in the terminology of
Vorontsov-Vel'yaminov), are reported. The list of galaxies that
possess (or probably possess) such rows includes about 200 objects,
of which about 70% are brighter than 14m. On the whole, galaxies with
rows make up 6-8% of all spiral galaxies with well-developed spiral
patterns. Most galaxies with rows are gas-rich Sbc-Scd spirals. The
fraction of interacting galaxies among them is appreciably higher than
among galaxies without rows. Earlier conclusions that, as a rule, the
lengths of rows are similar to their galactocentric distances and that
the angles between adjacent rows are concentrated near 120° are
confirmed. It is concluded that the rows must be transient
hydrodynamic structures that develop in normal galaxies.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
catalog.dat 57 204 Galaxies possessing (or possibly possessing) rows
--------------------------------------------------------------------------------
Byte-by-byte Description of file: catalog.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 9 A9 --- Name PGC or NGC name
11- 21 A11 --- MType Morphological type
23- 26 F4.1 mag B0mag Integrated B magnitude corrected for Galactic
extinction and the inclination of the galaxy
to the line of sight
28- 32 I5 km/s HRV ? Heliocentric radial velocity
34- 38 F5.1 mag BMAG ? Absolute B magnitude
40- 43 F4.2 Sun MHI/LB ? HI mass-to-light ratio
45 I1 --- Rows Number of rows detected in the galaxy
47- 51 I5 --- VV ? VV number
(Vorontsov-Vel'Yaminov, 1977A&AS...28....1V 1977A&AS...28....1V)
52 A1 --- n_VV [*] *: interacting galaxies with no VV numbers
54- 56 A3 --- Com Comments (1)
--------------------------------------------------------------------------------
Note (1): Comments as follows:
1 = ring galaxies with straight-line ring rows (hexagons).
2 = most typical examples of galaxies with rows.
3 = Galaxies with straight tails, purportedly of tidal origin.
--------------------------------------------------------------------------------
History:
Prepared via OCR at CDS.
(End) James Marcout, Patricia Bauer [CDS] 07-Jun-2002