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| Query : 2021ApJ...906...31W |
2021ApJ...906...31W - Astrophys. J., 906, 31-31 (2021/January-1)
Line identification and excitation of autoionizing states in a late-type, low-mass Wolf-Rayet star.
WILLIAMS R., MANEA C., MARGON B. and MORRELL N.
Abstract (from CDS):
Identifications of a large fraction of previously unidentified lines in the complex spectrum of the low mass, late-type LMC [WC11] star J060819.93-715737.4 have been made utilizing electronic databases. There are an exceptionally large number of C II emission lines originating from autoionizing (AI) levels. Resonance fluorescence between the C II ground state and excited AI levels is shown to be an important photoabsorption process that is competitive with dielectronic recombination in exciting AI emission lines in stellar winds, and has broad application to many types of emission-line stars. In addition, numerous C II quartet multiplets appear in emission that are not excited directly by recombination or resonance fluorescence, signifying high wind densities in the emission region that enhance collisional transfer between doublet and quartet states.
Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.
Journal keyword(s): WC stars - Stellar spectral lines
Simbad objects: 5
| Number of rows : 5 |
| 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 | NAME LMC | G | 05 23 34.6 | -69 45 22 | 0.4 | ~ | 19090 | 0 | ||||
| 2 | IRAS 06091-7157 | PN | 06 08 19.9377964776 | -71 57 37.448280828 | 15.533 | 15.546 | 15.753 | [WC11] | 6 | 0 | ||
| 3 | WRAY 15-1269 | PN | 14 59 53.4819371136 | -54 18 07.521138792 | 12.12 | 12.17 | 11.64 | 11.63 | [WC11] | 256 | 0 | |
| 4 | CPD-56 8032 | PN | 17 09 00.9278385254 | -56 54 47.863882536 | 11.24 | 11.48 | 11.04 | 11.067 | [WC11] | 277 | 0 | |
| 5 | V* V348 Sgr | pA* | 18 40 19.9290428808 | -22 54 29.308207716 | 12.1 | B0/1?I?e | 192 | 0 |
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