Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Discovery of a double ring in the core of eta Carinae
Autore:
Hony, S; Dominik, C; Waters, LBFM; Icke, V; Mellema, G; van Boekel, R; de Koter, A; Morris, PM; Barlow, M; Cox, P; Kaufl, HU;
Indirizzi:
Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 SJ Amsterdam, Netherlands Univ Amsterdam Amsterdam Netherlands NL-1098 SJ J Amsterdam, Netherlands Katholieke Univ Leuven, Inst Sterrenkunde, B-3001 Heverlee, Belgium Katholieke Univ Leuven Heverlee Belgium B-3001 B-3001 Heverlee, Belgium Sterrewacht Leiden, NL-2300 RA Leiden, Netherlands Sterrewacht Leiden Leiden Netherlands NL-2300 RA RA Leiden, Netherlands European So Observ, D-85748 Garching, Germany European So Observ Garching Germany D-85748 v, D-85748 Garching, Germany CALTECH, CIRTF Sci Ctr, Pasadena, CA 91125 USA CALTECH Pasadena CA USA 91125 TECH, CIRTF Sci Ctr, Pasadena, CA 91125 USA Univ Coll London, Dept Phys & Astron, London WC1E 6BT, England Univ Coll London London England WC1E 6BT stron, London WC1E 6BT, England Univ Paris Sud, Inst Astrophys Spatiale, F-91405 Orsay, France Univ Paris Sud Orsay France F-91405 phys Spatiale, F-91405 Orsay, France
Titolo Testata:
ASTRONOMY & ASTROPHYSICS
fascicolo: 1, volume: 377, anno: 2001,
pagine: L1 - L4
SICI:
1432-0746(200110)377:1<L1:DOADRI>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
HOMUNCULUS NEBULA; PLANETARY-NEBULA; TELESCOPE; POLARIMETRY; BUBBLES; TORUS;
Keywords:
circumstellar matter; stars : emission-line; stars : eta Car; stars : massive; infrared : stars;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Hony, S Univ Amsterdam, Astron Inst Anton Pannekoek, Kruislaan 403, NL-1098 SJ Amsterdam, Netherlands Univ Amsterdam Kruislaan 403 Amsterdam Netherlands NL-1098 SJ nds
Citazione:
S. Hony et al., "Discovery of a double ring in the core of eta Carinae", ASTRON ASTR, 377(1), 2001, pp. L1-L4

Abstract

We report the discovery of a double ring structure in the waist of the nebula surrounding eta Carinae. The rings are detected in the mid-IR dust continuum at wavelengths of 7.9, 11.9, 12.9 and 20 mum. The dust in the rings has a temperature of about 300 K. The orientation of the rings is inclined with respect to the axis of the homunculus by either 37 or 58 degrees. The central star is not in the projected centre of the structure defined by the two rings. This geometry is reminiscent of that seen in SN1987A and some planetary nebulae. We discuss several possible origins for this remarkable geometry and its orientation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 06:20:36