2011ApJS..194...15T

Query : 2011ApJS..194...15T

2011ApJS..194...15T - Astrophys. J., Suppl. Ser., 194, 15 (2011/May-0)

The Chandra Carina Complex Project: deciphering the enigma of Carina's diffuse X-ray emission.

TOWNSLEY L.K., BROOS P.S., CHU Y.-H., GAGNE M., GARMIRE G.P., GRUENDL R.A., HAMAGUCHI K., MAC LOW M.-M., MONTMERLE T., NAZE Y., OEY M.S., PARK S., PETRE R. and PITTARD J.M.

Abstract (from CDS):

We present a 1.42 deg2 mosaic of diffuse X-ray emission in the Great Nebula in Carina from the Chandra X-ray Observatory Advanced CCD Imaging Spectrometer camera. After removing >14,000 X-ray point sources from the field, we smooth the remaining unresolved emission, tessellate it into segments of similar apparent surface brightness, and perform X-ray spectral fitting on those tessellates to infer the intrinsic properties of the X-ray-emitting plasma. By modeling faint resolved point sources, we estimate the contribution to the extended X-ray emission from unresolved point sources and show that the vast majority of Carina's unresolved X-ray emission is truly diffuse. Line-like correlated residuals in the X-ray spectral fits suggest that substantial X-ray emission is generated by charge exchange at the interfaces between Carina's hot, rarefied plasma and its many cold neutral pillars, ridges, and clumps.

Abstract Copyright: ∼

Journal keyword(s): H II regions - stars: massive - stars: winds, outflows - X-rays: individual: Carina - X-rays: ISM - X-rays: stars

VizieR on-line data: <Available at CDS (J/ApJS/194/15): table1.dat table3.dat>

Nomenclature: Table 1: [TBC2011] insideNNN (Nos 001-132), [TBC2011] outsideNNN (Nos 001-029).

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 19

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Number of rows : 19
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 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
2 Cl Bochum 10 OpC 10 42 14.2 -59 08 44   6.40 6.2     ~ 86 0
3 NAME Carina I HII Region HII 10 43 32 -59 35.0           ~ 59 0
4 Cl Trumpler 14 OpC 10 43 56.0 -59 33 07   5.70 5.5     ~ 547 0
5 Cl Collinder 228 OpC 10 44 00 -60 05.2           ~ 211 0
6 HD 93162 WR* 10 44 10.3890266112 -59 43 11.106500520 7.90 8.55 8.80 8.66   O2.5If*/WN6+OB 374 0
7 Cl Trumpler 15 OpC 10 44 43.6 -59 22 07           ~ 229 0
8 Cl Trumpler 16 OpC 10 45 01.9 -59 42 00           ~ 510 0
9 NGC 3372 HII 10 45 02.23 -59 41 59.8           ~ 1071 2
10 * eta Car s*b 10 45 03.545808 -59 41 03.95124 6.37 7.03 6.48 6.123 4.41 LBV 2543 0
11 NAME Treasure Chest CGb 10 45 53.0 -59 57 02           ~ 33 2
12 NAME Treasure Chest Cluster Cl* 10 45 54.0 -59 56 58           ~ 30 1
13 Cl Bochum 11 OpC 10 47 06.3 -60 05 55           ~ 95 0
14 NAME Coalsack Nebula DNe 12 31 19 -63 44.6           ~ 275 0
15 M 101 GiP 14 03 12.583 +54 20 55.50   8.46 7.86 7.76   ~ 3138 2
16 NAME Upper Centaurus Lupus MGr 15 24 -41.9           ~ 567 1
17 NAME LHB X 16 42.0 +02 19           ~ 414 0
18 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1700 0
19 NAME Galactic Ridge ? ~ ~           ~ 543 1

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