SIMBAD references

2025MNRAS.541.3331G - Mon. Not. R. Astron. Soc., 541, 3331-3340 (2025/August-3)

Infrared spectroscopy of V838 Monocerotis in 2015 and 2022.

GEBALLE T.R., KAMINSKIY B.M., BANERJEE D.P.K., EVANS A., PAVLENKO Y., RUSHTON M.T., POPESCU M. and EYRES S.P.S.

Abstract (from CDS):

We report medium-resolution 0.85-2.45 $\mu$m spectroscopy obtained in 2015 and 2022 and high-resolution 2.27-2.39 $\mu$m and 4.59-4.77 $\mu$m spectroscopy obtained in 2015 of V838 Monocerotis (V838 Mon), along with modelling of the 0.85-2.45 $\mu$m spectrum. V838 Mon underwent a series of eruptions and extreme brightenings in 2002, which are thought to have occurred as a result of a stellar merger. The new spectra and modelling of them reveal a disturbed red giant photosphere that is probably continuing to contract and ejecta that are cooling and continuing to disperse at velocities up to 200 km s–1.

Abstract Copyright: © The Author(s) 2025. Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): line: identification - line: profiles - stars: individual: V838 Monocerotis - stars: late-type

Simbad objects: 9

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