75 citations · 349 across the 23 of their papers we have counts for
23 papers
Asymmetrical nebula of the M33 variable GR290 (WR/LBV)
Olga V. Maryeva, Gloria Koenigsberger, Sergey V. Karpov +5
Context: GR290 (M33 V0532=Romano's star) is a luminous M33 object undergoing photometric variability typical for luminous blue variable (LBV) stars. It lies inside Wolf-Rayet regio…
The History Goes On: Century Long Study of Romano's Star
Olga Maryeva, Roberto F. Viotti, Gloria Koenigsberger +3
GR 290 (M 33 V0532 = Romano's Star) is a unique variable star in the M33 galaxy, which simultaneously displays variability typical for luminous blue variable (LBV) stars and physic…
AGB candidates in the field of gamma Cas
Roberto Nesci, Taavi Tuvikene, Corinne Rossi +5
We report the spectroscopic and photometric monitoring of a sample of 530 candidate AGB stars in a 5 degrees field, selected from the IPHAS catalog: historic light curves were deri…
Wind and nebula of the M33 variable GR290 (WR/LBV)
Olga Maryeva, Gloria Koenigsberger, Oleg Egorov +4
Context: GR290 (M33/V532=Romano's Star) is a suspected post-LBV star located in M33 galaxy that shows a rare Wolf-Rayet spectrum during its minimum light phase. In spite of many st…
Infrared characteristics of the BIS catalog objects
S. Gaudenzi, R. Nesci, C. Rossi +3
We have studied several color-color infrared diagrams of the 276 late type stars of the BIS catalog. For 95 of these stars we derived spectral classification from our slit spectros…
Spectral Properties and Variability of BIS objects
S. Gaudenzi, R. Nesci, C. Rossi +3
Through the analysis and interpretation of newly obtained and of literature data we have clarified the nature of poorly investigated IRAS point sources classified as late type star…