2001A&A...367..566W


C.D.S. - SIMBAD4 rel 1.7 - 2020.08.11CEST22:20:58

2001A&A...367..566W - Astronomy and Astrophysics, volume 367, 566-576 (2001/2-4)

High velocity structures in, and the X-ray emission from the LBV nebula around η Carinae.

WEIS K., DUSCHL W.J. and BOMANS D.J.

Abstract (from CDS):

The Luminous Blue Variable star η Carinae is one of the most massive stars known. It underwent a giant eruption in 1843 in which the Homunculus nebula was created. ROSAT and ASCA data indicate the existence of a hard and a soft X-ray component which appear to be spatially distinct: a softer diffuse shell of the nebula around η Carinae and a harder point-like source centered on the star η Car. Astonishingly the morphology of the X-ray emission is very different from the optical appearance of the nebula. We present a comparative analysis of optical morphology, the kinematics, and the diffuse soft X-ray structure of the nebula around η Carinae. Our kinematic analysis of the nebula shows extremely high expansion velocities. We find a strong correlation between the X-ray emission and the knots in the nebula and the largest velocities, i.e. the X-ray morphology of the nebula around η Carinae is determined by the interaction between material streaming away from η Car and the ambient medium.

Abstract Copyright:

Journal keyword(s): stars: evolution - stars: individual: η Carinae - stars: mass-loss - ISM: bubbles - ISM: jets and outflows

Nomenclature: Fig.1: [WDB2001] ROSAT knot N (Nos 1-2). Fig.5: [WDB2001] HST knot NN N=25 among (Nos 1-32).

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

CDS comments: p.568 Three CPD *, not CD

Simbad objects: 15

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Number of rows : 15

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NGC 3372 HII 10 44 19.0 -59 53 21           ~ 893 2
2 V* V560 Car SB* 10 44 33.7392630703 -59 44 15.434160993 6.89 7.80 7.75 7.56 7.46 O3.5V((f))+O8V 279 0
3 [WDB2001] ROSAT knot 2 PoC 10 45 01.4 -59 40 53           ~ 1 0
4 [WDB2001] ROSAT knot 1 PoC 10 45 02.0 -59 41 08           ~ 4 0
5 NAME Homunculus Nebula ISM 10 45 03.5 -59 41 04           ~ 323 1
6 * eta Car Em* 10 45 03.5455050 -59 41 03.951060 6.37 7.034 6.21 4.90 4.41 OBepec 2211 0
7 HD 303308 ** 10 45 05.9146041531 -59 40 05.922859453 7.45 8.30 8.17 7.92 7.75 O4.5V((fc)) 279 0
8 V* V731 Car Al* 10 45 12.7216788300 -59 44 46.148146531 8.739 9.472 9.229 9.65 8.699 O8V(n)+O9.5V 79 0
9 CPD-59 2636 SB* 10 45 12.8658434508 -59 44 19.207705407 8.913 9.559 9.218   8.535 O8V+O8V 66 0
10 CD-59 3310 SB* 10 45 16.5180390022 -59 43 37.048965761 8.842 9.542 9.219 9.65 8.585 O6V((fc)) 76 0
11 HZ 43 ** 13 16 21.85329 +29 05 55.3793   12.52 12.66     DAwk+M3.5Ve 449 0
12 [W76] E Condensation PoC ~ ~           ~ 2 0
13 [W76] W Arc PoC ~ ~           ~ 2 0
14 [W76] S Ridge PoC ~ ~           ~ 3 0
15 [W76] N Condensation PoC ~ ~           ~ 2 0

    Equat.    Gal    SGal    Ecl

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2020.08.11-22:20:58

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