Open AccessV2282 Sgr Revisited
Author(s) -
R. Nesci,
C. Rossi,
A. Frasca,
E. Marilli,
P. Persi,
Nicola Cornero
Publication year - 2014
Publication title -
acta polytechnica ctu proceedings
Language(s) - English
Resource type - Journals
ISSN - 2336-5382
DOI - 10.14311/app.2014.01.0118
Subject(s) - physics , photometry (optics) , observatory , astrophysics , light curve , astronomy , flux (metallurgy) , spectral line , accretion disc , emission spectrum , stars , chemistry , organic chemistry
The nature of V2282 Sgr is examined on the basis of several multiband observations: a 20 years long I-band light curve of V2282 Sgr obtained from archive photographic plates of the Asiago and Catania Observatories; a CCD R-band light curve obtained at Cornero Observatory; JHK photometry from 2MASS and UKDISS; Spitzer IRAC and MIPS images; optical spectra from Loiano Observatory; X-ray flux from CHANDRA . The star has a K-type spectrum with strong emission lines and is irregularly variable at all wavebands. The overall evidences suggest that V2282 Sgr is a Pre Main Sequence star with an accretion disk.