2011A&A...528A.137I


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.12CET10:37:56

2011A&A...528A.137I - Astronomy and Astrophysics, volume 528A, 137-137 (2011/4-1)

The location of an active nucleus and a shadow of a tidal tail in the ULIRG Mrk 273.

IWASAWA K., MAZZARELLA J.M., SURACE J.A., SANDERS D.B., ARMUS L., EVANS A.S., HOWELL J.H., KOMOSSA S., PETRIC A., TENG S.H., U V. and VEILLEUX S.

Abstract (from CDS):

Analysis of data from the Chandra X-ray Observatory for the double nucleus ULIRG Mrk 273 reveals an absorbed hard X-ray source coincident with the southwest nucleus, implying that this unresolved, near-infrared source is where an active nucleus resides, while the northern nuclear region contains a powerful starburst that dominates the far infrared luminosity. There is evidence of a slight image extension in the 6-7keV band, where an Fe K line is present, towards the northern nucleus. A large-scale, diffuse emission nebula detected in soft X-rays contains a dark lane that spatially coincides with a high surface-brightness tidal tail extending ∼50arcsec (40kpc) to the south. The soft X-ray source is likely located behind the tidal tail, which absorbs X-ray photons along the line of sight. The estimated column density of cold gas in the tidal tail responsible for shadowing the soft X-rays is NH≥ 6x1021cm–2, consistent with the tidal tail having an edge-on orientation.

Abstract Copyright:

Journal keyword(s): galaxies: active - X-rays: galaxies - galaxies: individual: Mrk 273 - infrared: galaxies

Nomenclature: Paragr. 3.1: [IMS2011] CSCN (Nos CSC1-CSC3) = GOALS JHHMMSS.ss+DDMMSS.s N=3.

Simbad objects: 13

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Number of rows : 13

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5219 6
2 NGC 4388 Sy2 12 25 46.820 +12 39 43.45 11.91 11.76 11.02     ~ 1155 2
3 Mrk 231 Sy1 12 56 14.2340989340 +56 52 25.238555193   14.68 13.84     ~ 1737 3
4 NGC 5256 PaG 13 38 17.8 +48 16 41   14.1 13.42     ~ 393 2
5 Mrk 273 Sy2 13 44 42.070 +55 53 13.17   15.68 14.91     ~ 814 3
6 GOALS J134442.11+555314.5 C?G 13 44 42.11 +55 53 14.5           ~ 1 0
7 GOALS J134442.15+555312.5 C?G 13 44 42.15 +55 53 12.5           ~ 1 0
8 GOALS J134442.17+555312.9 C?G 13 44 42.17 +55 53 12.9           ~ 1 0
9 Mrk 273N PoG 13 44 42.1893 +55 53 13.259           ~ 10 0
10 CXOMP J134447.4+555411 X 13 44 47.463 +55 54 11.42           ~ 1 0
11 NAME Mrk 273x Sy2 13 44 47.5 +55 54 11     20.8     ~ 26 0
12 IC 4553 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 2623 4
13 NGC 6240 Sy2 16 52 58.861 +02 24 03.55   14.31 13.37     ~ 1445 2

    Equat.    Gal    SGal    Ecl

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2019.11.12-10:37:56

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