A VLT spectrum of EROS-BLG-2000-5

This chart shows a spectrum of EROS-BLG-2000-5, obtained with the FORS1 multi-mode instrument at the 8.2-m VLT ANTU telescope at Paranal on June 25, 2000, before the second caustic crossing described in the text. A small part of the spectrum around the H-alpha line at wavelength 656.2 nm is enlarged in the insert.

Technical information: The FORS1 spectrum shown here is a composite of 300-sec exposures taken with with the 600B (spectral interval 390 - 580 nm), 600R (538 - 753 nm) and 600I (705 - 918 nm) gratings; the insert covers a 10 nm wide region near H-alpha.

Credit:

ESO

Over de afbeelding

Id:eso0117c
Type:Observatie
Publicatiedatum:25 april 2001
Gerelateerde berichten:eso0117
Grootte:3000 x 2079 px

Over het object

Naam:EROS-BLG-2000-5
Type:Milky Way : Star
Milky Way : Cosmology : Phenomenon : Lensing
Afstand:25000 lichtjaren
Categorie:Stars

Afbeeldingstypen

Grote JPEG
353,1 KB

Kleuren & filters

BandTelescoop
InfraroodVery Large Telescope
FORS1
OptischVery Large Telescope
FORS1