2007ApJ...661..165L


Query : 2007ApJ...661..165L

2007ApJ...661..165L - Astrophys. J., 661, 165-172 (2007/May-3)

Optical studies of the ultraluminous X-ray source NGC 1313 X-2.

LIU J.-F., BREGMAN J., MILLER J. and KAARET P.

Abstract (from CDS):

NGC 1313 X-2 was among the first ultraluminous X-ray sources discovered, and has been a frequent target of X-ray and optical observations. Using the HST ACS multiband observations, this source is identified with a unique counterpart within an error circle of 0.2". The counterpart is a blue star on the edge of a young cluster of ≤107 yr amid a dominant old stellar population. Its spectral energy distribution is consistent with that for a Z=0.004 star with 8.5 M about 5x106 yr old, or for an O7 V star at solar metallicity. The counterpart exhibited significant variability of Δm=0.153±0.033 mag between two F555W observations separated by 3 months, reminiscent of the ellipsoidal variability due to the orbital motion of this ULX binary.

Abstract Copyright:

Journal keyword(s): Galaxies: Individual: NGC Number: NGC 1313 - X-Rays: Binaries

Nomenclature: Fig.1, Table 2: [LBM2007] XN (Nos X3, X4).

CDS comments: ULX NGC 1313 X-2 = [CPS95] X-2.

Simbad objects: 16

goto Full paper

goto View the references in ADS

Number of rows : 16
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME Cartwheel G 00 37 41.107 -33 42 58.79   19.26   18.52   ~ 260 1
2 SN 1978K SN* 03 17 38.620 -66 33 03.40   13.0       SNII 190 1
3 NGC 1313 G 03 18 16.046 -66 29 53.74   10.06 10.0 9.40 10.4 ~ 628 2
4 2E 756 ULX 03 18 22.00 -66 36 04.3   23.5 23.6     O9.5 211 3
5 [ZMF2004] C2 * 03 18 22.36 -66 36 03.8     24.1     G 7 2
6 [LBM2007] X4 G 03 18 25.250 -66 36 36.04           ~ 1 0
7 [LBM2007] X3 * 03 18 29.3571371249 -66 35 36.745606039           ~ 1 0
8 SN 1993J SN* 09 55 24.77476 +69 01 13.7026   10.8 12.0     SNIIb 1306 1
9 M 81 Sy2 09 55 33.17306143 +69 03 55.0609270   7.89 6.94     ~ 4104 5
10 NGC 4038 GiP 12 01 53.002 -18 52 03.32   10.91   9.74 11.0 ~ 1290 1
11 NAME Antennae IG 12 01 53.170 -18 52 37.92           ~ 1599 0
12 NGC 4039 GiP 12 01 53.8 -18 53 06   11.08   9.77   ~ 1139 1
13 M 99 H2G 12 18 49.625 +14 24 59.36 10.45 10.44 9.87     ~ 810 2
14 NGC 7714 GiP 23 36 14.099 +02 09 18.07   14.91 14.36     ~ 742 1
15 APG 284 PaG 23 36 19 +02 09.3   12.6       ~ 605 0
16 NGC 7715 GiP 23 36 21.768 +02 09 25.30   11.81 12.14     ~ 131 0

To bookmark this query, right click on this link: simbad:objects in 2007ApJ...661..165L and select 'bookmark this link' or equivalent in the popup menu


2021.11.28-22:03:21

© Université de Strasbourg/CNRS

    • Contact