1999AJ....117.2617O

Query : 1999AJ....117.2617O

1999AJ....117.2617O - Astron. J., 117, 2617-2625 (1999/June-0)

Redshifts of galaxies around Arp 220 and serendipitous discovery of three star-forming dwarf galaxies at redshift z∼0.5.

OHYAMA Y., TANIGUCHI Y., HIBBARD J.E. and VACCA W.D.

Abstract (from CDS):

We present redshift measurements of four faint galaxies around the archetypal ultraluminous infrared galaxy Arp 220. These galaxies have significantly higher redshifts (z∼0.036-0.091) than that of Arp 220 (z≃0.018). Therefore, we conclude that they are background objects not physically related to Arp 220. Three of these faint galaxies located to the south of Arp 220 are a group of galaxies (or the brightest members in a cluster of galaxies) at z≃0.09, as has been suggested previously on the basis of their associated soft X-ray emission.

We also report the serendipitous discovery of three additional galaxies at redshift z∼0.5, found along one of the slit positions. All three galaxies exhibit an [O II] λ3727 emission line. The spectrum of the brightest galaxy (mR≃24.4) shows other strong emission lines: Mg II λ2798, Hβ, [O III] λ4959, and[O III] λ5007. The emission-line properties of these galaxies as well as their intrinsically low luminosities (MR≥-18.4) indicate that they are star-forming dwarf galaxies.


Abstract Copyright: ∼

Journal keyword(s): Galaxies: Clusters: General - Galaxies: Distances and Redshifts - Galaxies: Individual: Name: Arp 220

Nomenclature: Table 2: [OTH99] Galaxy A (Nos A-D). Table 4: [OTH99] Galaxy R (Nos I-III).

CDS comments: misprint pour RA de [OTH99] Galaxy D. (correct = 15h35m04.8)

Simbad objects: 14

goto Full paper

goto View the references in ADS

Number of rows : 14
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 1510 GiP 04 03 32.640 -43 24 00.58 14.23 13.63 13.24 13.09   ~ 201 1
2 Feige 34 HS* 10 39 36.7358839104 +43 06 09.212615280 9.613 10.91 11.14 11.319 11.464 sdOp 731 0
3 BD+18 2647 HS* 12 41 51.7899961800 +17 31 19.750566756 10.261 11.70 11.63 11.969 12.159 sdOpec 185 1
4 SDSS J153452.67+232848.0 G 15 34 52.6766087424 +23 28 48.073667628           ~ 5 0
5 SDSS J153453.63+232821.0 G 15 34 53.63718 +23 28 21.0982           ~ 2 0
6 NVSS J153453+232821 rG 15 34 53.7105183912 +23 28 16.551561072           ~ 11 0
7 [OTH99] Galaxy I G 15 34 54.3 +23 27 59           ~ 2 0
8 [OTH99] Galaxy II G 15 34 54.5 +23 27 52           ~ 2 0
9 [OTH99] Galaxy III G 15 34 54.8 +23 27 44           ~ 2 0
10 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
11 IC 4554 LIN 15 35 04.8324216312 +23 28 45.419746224           ~ 20 0
12 BD+33 2642 pA* 15 51 59.8854348048 +32 56 54.329485272 9.806 10.61 10.73 10.884 10.961 O7p 456 0
13 ESO 338-4 EmG 19 27 58.338 -41 34 30.81   13.55 13.21 13.14 13.43 ~ 253 1
14 BD+28 4211 HS* 21 51 11.0221915656 +28 51 50.367627468 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 837 0

To bookmark this query, right click on this link: simbad:objects in 1999AJ....117.2617O and select 'bookmark this link' or equivalent in the popup menu