Model image of Cepheid L Carinae

Two model images of the Cepheid star L Carinae as deduced from the interferometric observations: in the near-infrared from VINCI measurements (left) and in the mid-infrared from MIDI (right). In both cases, an envelope is found to surround the star. The contribution from the envelope is about 5% in the near-infrared and significantly more in the thermal infrared. As L Carinae is 17,000 times brighter than the Sun, this means that its envelope alone is several hundred times brighter than our Sun!

Crediti:

ESO

A proposito dell'immagine

Identificazione:eso0609a
Tipo:Osservazione
Data di pubblicazione:28 Febbraio 2006
Notizie relative:eso0609
Dimensione:1544 x 762 px

A proposito delll'oggetto

Nome:L Carinae
Tipo:Milky Way : Star : Type : Variable : Pulsating
Milky Way : Star : Type : Variable
Distanza:2000 Anni luce
Categoria:Stars

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Colori e filtri

BandaTelescopio
Infrarosso
N
Very Large Telescope
MIDI
Infrarosso
K
Very Large Telescope
VINCI

Note: The K-band data refers to the left image, and N-band to the right.

 

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