Astronomical Ring for Access to Spectroscopy
     Last update: November 21, 2011

Discover ARAS!...
 

BeSS data base
The database of Be stars spectra. GEPI (Observatoire de Paris-Meudon).

ArasBeAm
ArasBeAm is the website dedicated to Be stars amateur observers. Its goal is to organize the spectroscopic observations of Be stars by amateurs from all over the world.

 

Collaborative surveys
FS CMa
Z CMa
CI Cyg
Find Be stars targets for the night
HD57682 flares
V407 Cyg
Nova Vul 2007

Spectrograph conception
Parameters for design of a spectrograph
LHIRES project
Barèges, a ready-to-build spectrograph
A Barèges type spectrograph
SBIG SGS Spectrograph Review

Some astrophysics
Spectral types
Diagram HR
Be stars
S & C stars 
Wolf-Rayet stars 
Carbon Stars
Supernovae
Planetary Nebulae
Quasars

Softwares
VisualSpec
SpIRIS
ISIS
SpcAudace
PRiSM
Rspec

Go to ARAS forum

FS CMa campaign

SN2011fe in Messier 101

P Cygni campaign

SN2011dh in Messier 51

T Pyxidis recurrent nova 2011 outburst

Delta Sco periastron 2011 campaign

Z CMa

CI Cyg

V407 Cyg outburst

HD57682 flares

Technical notes

List of test stars for LHIRES III spectrograph
Definition of LHIRES III data products
LHIRES III - SpIris processing tutorial
LHIRES III project - Description
Working session with the 1200 g/mm grating 
Adjustment of the "Exposure Time Calculator" parameters
Extraction of the spectral response
How to take a flat-field? 
Accomodation of LHIRES III on the 0.6 m telescope of Pic du Midi observatory
LHIRES III on a Takahashi FS128 refractor
Image quality of LHIRES III
Focusing stars methods on the entrance slit of Lhires III
COROT Be stars survey project
OHP 2007 spectroscopic school
OHP 2008 spectroscopic school  
Interference fringings analysis by Peter Schlatter and an opus of finging observations by B. Mauclaire    
Atmospheric extinction and faint Be stars
Some advices about the use of Star Analyser spectrograph
Use LHIRES III with a digital SRL
Processing of DSLR RAW images
Economic spectral calibration lamps
Intermediate resolution with LHIRES