2007PASJ...59S.151H

Query : 2007PASJ...59S.151H

2007PASJ...59S.151H - Publ. Astron. Soc. Jap., 59, 151-161 (2007/January-0)

Suzaku observation of diffuse X-ray emission from the Carina nebula.

HAMAGUCHI K., PETRE R., MATSUMOTO H., TSUJIMOTO M., HOLT S.S., EZOE Y., OZAWA H., TSUBOI Y., SOONG Y., KITAMOTO S., SEKIGUCHI A. and KOKUBUN M.

Abstract (from CDS):

We studied extended X-ray emission from the Carina Nebula taken with the Suzaku CCD camera XIS on 2005 August 29.The X-ray morphology, plasma temperature, and absorption to the plasma are consistent with the earlier Einstein results.The Suzaku spectra newly revealed emission lines from various species, including oxygen, but not from nitrogen.This result restricts theN/O ratio to be significantly low, compared with evolved massive stellar winds, suggesting that the diffuse emission originated in an old supernova remnant or a super shell produced by multiple supernova remnants.The X-ray spectra from the north and south of e Car showed distinct differences between 0.3-2keV.The south spectrum shows strong L-shell lines of iron ions and K-shell lines of silicon ions, while the north spectrum shows them weak in intensity.This means that the silicon and iron abundances are a factor of 2-4 higher in the south region than in the north region.The abundance variation may be produced by an SNR ejecta, or related to dust formation around the star-forming core.

Abstract Copyright: ∼

Journal keyword(s): ISM: abundances - ISM: individual (Carina Nebula) - supernova remnants- - X-rays: ISM

Simbad objects: 23

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Number of rows : 23
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 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
2 NGC 2110 Sy2 05 52 11.3768668776 -07 27 22.507465392   14.77 13.51 11.86   ~ 712 1
3 NAME Rosette Nebula HII 06 32 26.76 +04 47 37.1           ~ 522 1
4 NAME Pup A SNR 08 24 07 -42 59.8           ~ 636 1
5 NAME Vela SNR 08 34.0 -45 50           ~ 1331 2
6 RCW 38 SFR 08 59 05.50 -47 30 39.4           ~ 327 2
7 RX J0957.9+6903 ULX 09 57 53.290 +69 03 48.20           ~ 246 4
8 Cl Trumpler 14 OpC 10 43 56.0 -59 33 07   5.70 5.5     ~ 547 0
9 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
10 V* V560 Car SB* 10 44 33.7393258944 -59 44 15.434446956 6.89 7.80 7.75 7.56 7.46 O3.5V((f))+O8V 314 0
11 HD 93250 ** 10 44 45.0275085072 -59 33 54.680974848 6.73 8.12 7.50 8.38   O4III(fc) 334 0
12 NGC 3372 HII 10 45 02.23 -59 41 59.8           ~ 1071 2
13 * 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
14 2E 2336 HXB 10 50 08.93 -59 53 19.9           Be 419 0
15 PSR J1052-5954 Psr 10 52 38.15 -59 54 46.1           ~ 23 0
16 NAME North Polar Spur ISM 12 00 +00.0           ~ 405 1
17 NAME LHB X 16 42.0 +02 19           ~ 414 0
18 NGC 6334 HII 17 20 53 -36 07.9           ~ 740 0
19 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1700 0
20 NAME Cyg Loop SNR 20 51.0 +30 40           ~ 964 0
21 NAME Cas A SNR 23 23 26.0 +58 48 41     14.30     ~ 3033 1
22 NAME Galactic Ridge ? ~ ~           ~ 543 1
23 NAME Carina Region reg ~ ~           ~ 192 0

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