Compact stellar systems in the polar ring galaxies NGC 4650A and NGC 3808B: Clues to polar disk formation

Free Access

Table 1

General properties of the studied polar ring galaxies (PRGs) and their neighbor galaxy (NG).

Property		PRG	NG^a	PRG	NG^a
		NGC 4650A	NGC 4650	NGC 3808B	NGC 3808A

RA	[J2000.0]	12:44:49.03	12:44:19.63	11:40:44.64	11:40:44.21
Dec	[J2000.0]	–40:42:50.6	–40:43:54.0	+22:26:49.0	+22:25:46.3
D ^b	[Mpc]	39.8	39.8	96.8	96.8
m − M ^b	[mag]	33.0 ± 0.2	33.0 ± 0.8	34.93 ± 0.27	34.93 ± 0.03
υ _rad ^b	[km s^-1]	2908.5 ± 3.6	2913.3 ± 14.3	7066 ± 12	7076 ± 1.3
L _B	[L_⊙]	2.75 × 10⁹	2.05 × 10¹⁰	9.04 × 10⁹	2.4 × 10¹⁰
B ^b	[mag]	14.72^c	12.60	15.50	14.45
I ^b	[mag]	12.72^c	10.41	13.59	12.93
K _s ^d	[mag]	11.02	8.56	11.36	11.00
A _V ^e	[mag]	0.312	0.324	0.072	0.071
E _{B − V} ^e	[mag]	0.104	0.1	0.023	0.022
Z	[Z_⊙]	0.2^f	−	0.87^h	0.75^h
SF R _{polar disk}	[M_⊙/yr]	0.06^f	−	−	−
HI mass_polar disk	[M_⊙]	8 × 10⁹^g	−	−	−
Total mass PRG^h	[M_⊙]	4.5 × 10¹⁰	5.6 × 10¹¹	4.1 × 10⁹	9.4 × 10⁹

Notes.

^(a)

Neighbor galaxy;

^(b)

from LEDA/NED;

^(c)

Gallagher et al. (2002);

^(d)

from 2MASS (Huchra et al. 2012);

^(e)

Schlafly & Finkbeiner (2011);

^(f)

Spavone et al. (2010), for the polar disk;

^(g)

Arnaboldi et al. (1997);

^(h)

estimated in this study.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.