2016A&A...588A.111G

Query : 2016A&A...588A.111G

2016A&A...588A.111G - Astronomy and Astrophysics, volume 588A111-111 (2016/4-1)

Oxygen, neon, and iron X-ray absorption in the local interstellar medium.

GATUZZ E., GARCIA J.A., KALLMAN T.R. and MENDOZA C.

Abstract (from CDS):

Aims. We present a detailed study of X-ray absorption in the local interstellar medium by analyzing the X-ray spectra of 24 galactic sources obtained with the Chandra High Energy Transmission Grating Spectrometer and the XMM-Newton Reflection Grating Spectrometer.
Methods. By modeling the continuum with a simple broken power-law and by implementing the new ISMabs X-ray absorption model, we have estimated the total H, O, Ne, and Fe column densities towards the observed sources.
Results. We have determined the absorbing material distribution as a function of source distance and galactic latitude-longitude.
Conclusions. Direct estimates of the fractions of neutrally, singly, and doubly ionized species of O, Ne, and Fe reveal the dominance of the cold component, thus indicating an overall low degree of ionization. Our results are expected to be sensitive to the model used to describe the continuum in all sources.

Abstract Copyright: © ESO, 2016

Journal keyword(s): ISM: general - ISM: atoms - ISM: abundances - ISM: structure - X-rays: ISM

Simbad objects: 25

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Number of rows : 25
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 V* V1055 Ori LXB 06 17 07.3565603963 +09 08 13.515857360   18.80 18.5     ~ 594 1
2 V* UY Vol LXB 07 48 33.71 -67 45 07.7 16.10 17.00 16.9 16.7 17.05 ~ 660 0
3 4U 0919-54 LXB 09 20 26.4818170056 -55 12 24.512806404 20.40 21.30 21.0     ~ 175 0
4 V* GR Mus LXB 12 57 37.1833002949 -69 17 18.996899563   19.40 19.1     ~ 275 0
5 V* V818 Sco LXB 16 19 55.0692669024 -15 38 25.017666540 11.60 12.40 11.1     Oev 1730 0
6 V* V801 Ara LXB 16 40 55.5976953528 -53 45 04.948107156 17.50 18.20 17.5   17.07 ~ 921 0
7 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2
8 V* V1033 Sco HXB 16 54 00.1423963019 -39 50 44.761701340       16.14   F3-6IV 1980 0
9 V* V821 Ara LXB 17 02 49.3876391280 -48 47 23.087954544         15.322 ~ 2237 0
10 V* V1101 Sco LXB 17 05 44.4916006152 -36 25 23.049324480   20.10 18.6     ~ 473 0
11 V* V2216 Oph LXB 17 31 44.17 -16 57 40.9 16.40 17.10 16.8     ~ 329 1
12 V* V926 Sco LXB 17 38 58.2384053021 -44 27 00.699118812 16.90 17.70 17.5     ~ 480 0
13 2MAXI J1753-013 LXB 17 53 28.2898766424 -01 27 06.256555272 15.30 16.73 16.46 16.15 15.64 ~ 384 0
14 SAX J1808.4-3658 LXB 18 08 27.58 -36 58 43.9           ~ 1051 0
15 [KRL2007b] 312 LXB 18 17 43.537 -33 01 07.80           ~ 177 0
16 X Sgr X-4 LXB 18 23 40.57 -30 21 40.6   19.06 18.81     ~ 1056 1
17 V* V4634 Sgr LXB 18 29 28.8 -23 47 48 18.90 19.40 19     ~ 399 0
18 V* MM Ser LXB 18 39 57.8 +05 02 13   19.2 19.2     ~ 378 0
19 MAXI J1910-057 LXB 19 10 22.80 -05 47 55.9           ~ 84 0
20 X Aql X-1 LXB 19 11 16.0571313336 +00 35 05.868232692           ~ 1186 1
21 V* V1405 Aql LXB 19 18 47.6 -05 14 18 20.90 21.40 21.0     ~ 495 0
22 HD 226868 HXB 19 58 21.6757355952 +35 12 05.784512688 9.38 9.72 8.91 8.42   O9.7Iabpvar 4590 0
23 V* V1408 Aql LXB 19 59 24.0074252040 +11 42 29.859773292 18.40 18.97 18.95 18.70 18.66 ~ 234 0
24 V* V1341 Cyg LXB 21 44 41.1544345272 +38 19 17.066570988 15.00 15.13 14.68 15.00   A9III 1229 1
25 QSO B2356-309 BLL 23 59 07.9034996184 -30 37 40.671098544   18.414 16.44 16.795   ~ 318 2

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