2016A&A...595A.101T


Query : 2016A&A...595A.101T

2016A&A...595A.101T - Astronomy and Astrophysics, volume 595A, 101-101 (2016/11-1)

ESO 243-49 HLX-1: scaling of X-ray spectral properties and black hole mass determination.

TITARCHUK L. and SEIFINA E.

Abstract (from CDS):

We report the results of Swift/XRT observations (2008-2015) of a hyper-luminous X-ray source, ESO 243-49 HLX-1. We demonstrate a strong observational evidence that ESO 243-49 HLX-1 undergoes spectral transitions from the low/hard state to the high/soft state during these observations. The spectra of ESO 243-49 HLX-1 are well fitted by the so-called bulk motion Comptonization model for all spectral states. We have established the photon index (Γ) saturation level, Γsat=3.0±0.1, in the Γ versus mass accretion rate (M) correlation. This Γ-M correlation allows us to estimate black hole (BH) mass in ESO 243-49 HLX-1 to be MBH∼7x104M assuming the distance to ESO 243-49 of 95Mpc. For the BH mass estimate we use the scaling method taking Galactic BHs XTE J1550-564, H 1743-322 and 4U 1630-472, and an extragalactic BH source, M101 ULX-1 as reference sources. The Γ versus M correlation revealed in ESO 243-49 HLX-1 is similar to those in a number of Galactic and extragalactic BHs and it clearly shows the correlation along with the strong Γ saturation at ~=3. This is a robust observational evidence for the presence of a BH in ESO 243-49 HLX-1. We also find that the seed (disk) photon temperatures are quite low, of order of 50-140 eV which are consistent with high BH mass in ESO 243-49 HLX-1.

Abstract Copyright: © ESO, 2016

Journal keyword(s): accretion, accretion disks - black hole physics - radiation mechanisms: general - X-rays: individuals: ESO 243-49 HLX-1

Simbad objects: 17

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Number of rows : 17
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 ACO 2877 ClG 01 09 49.3 -45 54 02           ~ 140 2
2 2XMM J010953.9-455538 X 01 09 53.9 -45 55 38           ~ 2 0
3 ESO 243-49 GiG 01 10 27.7550638752 -46 04 27.356310264 16.54 14.92   13.48   ~ 164 0
4 [FWB2009] HLX-1 ULX 01 10 28.30 -46 04 22.3     24.5 23.80   ~ 173 1
5 LEHPM 1305 PM* 01 10 50.4203232984 -46 00 14.253215220     14.00 13.87 17.56 M1Ve 9 0
6 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5585 6
7 NGC 3227 GiP 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1614 1
8 NGC 3516 Sy1 11 06 47.4632200800 +72 34 07.298374656   13.12 12.40     ~ 1472 0
9 NGC 4253 Sy1 12 18 26.5163572920 +29 48 46.531535472   14.34 13.57     ~ 984 1
10 [FK2005] 25 ULX 14 03 19.63 -41 22 58.7           ~ 213 0
11 [JRW2005b] 122 UX? 14 03 32.38 +54 21 03.0   21.13       ~ 105 0
12 NGC 5506 AGN 14 13 14.8761010056 -03 12 27.556909272   15.25 14.38     ~ 1045 0
13 NGC 5548 Sy1 14 17 59.5400291832 +25 08 12.603122268   14.35 13.73     ~ 2531 0
14 V* V381 Nor HXB 15 50 58.6637920704 -56 28 35.258385000   17.95 16.6     K3III 1093 0
15 X Nor X-1 LXB 16 34 01.610 -47 23 34.80           ~ 458 0
16 NAME XTE J17464-3213 LXB 17 46 15.59637 -32 14 00.8600           ~ 664 0
17 SS 433 HXB 19 11 49.5647697480 +04 58 57.827127648   16.3 13.0     A7Ib: 2012 4

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2022.05.26-01:13:57

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