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| Query : 2025MNRAS.541.3331G |
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
| Number of rows : 9 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | * omi Cet | Mi* | 02 19 20.79210 | -02 58 39.4956 | 7.63 | 6.53 | 5.03 | M5-9IIIe+DA | 1586 | 0 | ||
| 2 | * alf Ori | s*r | 05 55 10.30536 | +07 24 25.4304 | 4.38 | 2.27 | 0.42 | -1.17 | -2.45 | M1-M2Ia-Iab | 1789 | 0 |
| 3 | HD 44756 | * | 06 23 22.7943154272 | -04 41 15.021358764 | 6.710 | 6.650 | A0V | 45 | 0 | |||
| 4 | HD 47054 | Be* | 06 36 35.3296522656 | -05 12 40.103033112 | 5.05 | 5.44 | 5.52 | B8IVe | 108 | 0 | ||
| 5 | V* V838 Mon | CV* | 07 04 04.8221494992 | -03 50 50.648894412 | 15.181 | 14.51 | M10+B3V | 462 | 1 | |||
| 6 | HD 53205 | * | 07 04 20.1743071080 | +01 29 18.565226592 | 6.58 | 6.57 | B9IV/V | 38 | 0 | |||
| 7 | HD 57224 | PM* | 07 11 38.4572186784 | -76 11 30.160871952 | 10.506 | 9.783 | G6V | 23 | 0 | |||
| 8 | V* V4332 Sgr | CV* | 18 50 36.6958376520 | -21 23 28.925017944 | 14.37 | K8/M0e | 194 | 0 | ||||
| 9 | IRAS 18530+0817 | OH* | 18 55 25.2250604280 | +08 21 15.935279256 | 16.322 | O-rich | 19 | 0 |
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