SiO bands in infrared spectra of late spectral stars
| 1Pavlenko, YV 1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine |
| Kinemat. fiz. nebesnyh tel (Online) 2019, 35(4):21-36 |
| https://doi.org/10.15407/kfnt2019.04.021 |
| Start Page: Physics of Stars and Interstellar Medium |
| Language: Russian |
Abstract: The importance of account the SiO absorption in the infrared spectrum for analyzing the spectra of stars of late spectral classes. We used lists of the absorption lines of the rotation-virational bands, calculated by the group of J. Tennison in the framework of the ExoMol project. In the spectrum of red giant HD 196610 (V*EU Del, spectral class M6 III), taken from the IRTF spectra library we identified bands of isotopic molecules 28SiO, 29SiO, 30SiO. The relative abundance of silicon isotopes in the atmosphere of HD 196610 were obtained by modeling the bands of the first overtone SiO in the spectrum of a star. It turned out to be close (to within three percent) to the «solar» value. At the same time, the carbon isotope ratio 12C/13C = 6 ± 1, determined by fits to the observed isotopic bands of the first overtone of CO, testifies to the advanced stage of the evolution of HD 196610. |
| Keywords: physics of stars and interstellar media |
References:
1. Barber R. J., Tennyson J., Harris G. J., Tolchenov R. N. (2006) A high-accuracy computed water line list. Mon. Notic. Roy. Astron. Soc. 368, № 3. P. 1087—1094.
https://doi.org/10.1111/j.1365-2966.2006.10184.x
2. Barton E. J., Yurchenko S. N., Tennyson J. (2013) ExoMol line lists — II. The ro-vibrational spectrum of SiO. Mon. Notic. Roy. Astron. Soc. 434, P. 1469—1475.
https://doi.org/10.1093/mnras/stt1105
3. Boothroyd A. I., Sackmann I. J. (1999) The CNO isotopes: deep circulation in red giants and first and second dredge-up. Astrophys. J. 510. P. 232—250.
https://doi.org/10.1086/306546
4. Campbell J. M., Klapstein D., Dulick M., Bernath P. F., Wallace L. (1995) Infrared absorption and emission spectra of SiO. Astrophys. J. Suppl. Ser. 101. P. 237.
https://doi.org/10.1086/192238
5. Charbonnel C. (1994) Clues for non-standard mixing on the red giant branch from C-12/C-13 and C-12/N-14 ratios in evolved stars. Astron. and Astrophys. 282, № 3. P. 811—820.
6. Cohen M., Witteborn F. C., Carbon D. F., et al. (1992) Spectral irradiance calibration in the infrared. III — The influence of CO and SiO. Astron. J. 104, № 5. P. 2045—2052.
https://doi.org/10.1086/116380
7. Cudaback D. D., Gaustad J. E., Knacke R. F. (1971) Silicon monoxide in the infrared spectrum of alpha Orionis. Astrophys. J. Lett. 166. P. L49.
https://doi.org/10.1086/180737
8. De Bievre P., Taylor P. (1993) Table of the isotopic compositions of the elements. Int. J. Mass Spectrom. and Ion Proc. 123. P. 149—166.
https://doi.org/10.1016/0168-1176(93)87009-H
9. Dyck H. M., van Belle G. T., Thompson R. R. (1998) Radii and effective temperatures for K and M giants and supergiants. II. Astron. J. 116, № 2. P. 981—986.
https://doi.org/10.1086/300453
10. Gilroy K. K., Brown J. A. (1991) Carbon isotope ratios along the giant branch of M67. Astrophys. J. 371. P. 578—583.
https://doi.org/10.1086/169922
11. Glenar D. A., Hill A. R., Jennings D. E., Brault J. W. (1985) Vibration-rotation parameters for high-temperature silicon monoxide from sunspot spectra. J. Mol. Spectrosc. 111. P. 403—414.
https://doi.org/10.1016/0022-2852(85)90015-3
12. Goon G., Auman J. R. (1970) Molecular abundances in K and M Stars. Astrophys. J. 161. P. 533—539.
https://doi.org/10.1086/150557
13. Goorvitch D. (1994) Infrared CO line for the X 1 Sigma(+) state. Astrophys. J. Suppl. Ser. 95, № 2. P. 535—552.
https://doi.org/10.1086/192110
14. Gordon I. E., Rothman L. S., Hill C., et al. (2017) The HITRAN2016 molecular spectroscopic database. J. Quant. Spectrosc. and Radiat. Transfer. 203. P. 3—69.
https://doi.org/10.1016/j.jqsrt.2017.06.038
15. Gurvich L. V., Veits I. V., Alcock C. B. (1989) Thermodynamics properties of individual substances. Volume 1 — Elements O, H/D, T/, F, Cl, Br, I, He, Ne, Ar, Kr, Xe, Rn, S, N, P, and their compounds. Part 1 — Methods and computation. Part 2 — Tables (4th revised and enlarged edition). New York: Hemisphere Publishing Corp. Pt. 1, 577 p.; Pt. 2, 352 p.
16. Kaifu N., Buhl D., Snyder L. E. (1975) Vibrationally excited SiO: A new type of maser source in the millimeter wavelength region. Astrophys. J. 195, Pt 1. P. 359—366.
https://doi.org/10.1086/153333
17. Knacke R. F., Gaustad J. E., Gillett F. C., Stein W. A. (1969) A possible identification of interstellar silicate absorption in the infrared spectrum of 119 Tauri. Astrophys. J. Lett. 155. P. L189—L192.
https://doi.org/10.1086/180333
18. Kurucz R. L. (1970) Atlas: a computer program for calculating model stellar atmospheres. SAO Special Report. 309. 291 p.
19. Kurucz R. L. (2014) Problems with atomic and molecular data: Including all the lines. P. 63—73.
https://doi.org/10.1007/978-3-319-06956-2_6
20. Langhoff S. R., Bauschlicher C. W. (1993) A theoretical study of the electric dipole moment function of SiO. Chem. Phys. Lett. 211, № 4-5. P. 305—311.
https://doi.org/10.1016/0009-2614(93)87064-A
21. Pavlenko Y. V. (1997) A «lithium test» and modeling of lithium lines in late-type M dwarfs: Teide1. Astron. Rep. 41. P. 537—542.
22. Pavlenko Y. V. (1998) The «lithium test» and the spectra of late M dwarfs and brown dwarfs: Condensation effects. Astron. Rep. 42. P. 787—792.
23. Pavlenko Y. V. (2003) Model atmospheres of red giants. Astron. Rep. 47. P. 59—67.
https://doi.org/10.1134/1.1538496
24. Pavlenko Y. V. (2014) Molecular bands in the spectra of M stars. Astron. Rep. 58. P. 825—834.
https://doi.org/10.1134/S1063772914110043
25. Pavlenko Y. V., Shavrina A. V. (1986) On the damping constant in the atmospheres of K-giants. Kinematics Phys. Celestial Bodies. 2, № 4. P. 63—66.
26. Pavlenko Y. V., Geballe T. R., Evans A., et al. (2004) CO bands in V4334 Sgr (Sakurai’s object): The 12C/13C ratio. Astron. and Astrophys. 417. P. L39—L43.
https://doi.org/10.1051/0004-6361:20040078
27. Pavlenko Y. V., Jones H. R. A. (2002) Carbon monoxide bands in M dwarfs. Astron. and Astrophys. 396. P. 967—975.
https://doi.org/10.1051/0004-6361:20021454
28. Pavlenko Y. V., Jones H. R. A., Longmore A. J. (2003) Carbon abundances and 12C/13C from globular cluster giants. Mon. Notic. Roy. Astron. Soc. 345. P. 311—324.
https://doi.org/10.1046/j.1365-8711.2003.06944.x
29. Rayner J. T., Cushing M. C., Vacca W. D. (2009) The Infrared Telescope Facility (IRTF) spectral library: Cool stars. Astrophys. J. Suppl. Ser. 185. P. 289—432.
https://doi.org/10.1088/0067-0049/185/2/289
30. Rinsland C. P., Wing R. F. (1982) Observations of the first-overtone silicon monoxide bands in late-type stars. Astrophys. J. 262. P. 201—212.
https://doi.org/10.1086/160411
31. Ryabchikova T., Piskunov N., Kurucz R. L., et al. (2015) A major upgrade of the VALD database. Phys. scr. 90 (5). P. 054005.
https://doi.org/10.1088/0031-8949/90/5/054005
32. Schaefer L., Lodders K., Fegley B. (2012) Vaporization of the Earth: Application to exoplanet atmospheres. Astrophys. J. 755, № 1. id. 41. 16 p.
https://doi.org/10.1088/0004-637X/755/1/41
33. Tinetti G., Drossart P., Eccleston P., et al. (2018) A chemical survey of exoplanets with ARIEL. Exp. Astron. 46. P. 135—209.
https://doi.org/10.1007/s10686-018-9598-x
34. Tobin T. L., Kemball A. J., Gray M. D. (2019) Constraining theories of polarized SiO maser transport: Multi-epoch analysis of a n/2 electric vector rotation feature. Astrophys. J. 871, 2. id. 189. 17 p.
https://doi.org/10.3847/1538-4357/aafac3
35. Tsuji T. (1973) Molecular abundances in stellar atmospheres. II. Astron. and Astrophys. 23. P. 411—431.
36. Vlemmings W. H. T., Humphreys E. M. L., Franco-Hernandez R. (2011) Magnetic fields in evolved stars: Imaging the polarized emission of high-frequency SiO masers. Astrophys. J. 728, № 2. id. 149. 8 p.
https://doi.org/10.1088/0004-637X/728/2/149
37. Wenger M., Ochsenbein F., Egret D., et al. (2000) The SIMBAD astronomical data¬base. The CDS reference database for astronomical objects. Astron. and Astrophys. Suppl. Ser. 143. P. 9—22.
https://doi.org/10.1051/aas:2000332
38. Wilson R. W., Penzias A. A., Jefferts K. B., Kutner M., Thaddeus P. (1971) Discovery of interstellar silicon monoxide. Astrophys. J. Lett. 167. P. L97.
https://doi.org/10.1086/180769
39. Wollman E. R., Geballe T. R., Greenberg L. T., Holtz J. Z., Rank D. M. (1973) Observations of silicon monoxide in cool stars at 4.05 microns. Astrophys. J. Lett. 184. P. L85.
https://doi.org/10.1086/181294
40. Yoon D. H., Cho S. H., Kim J., Yun Y. J., Park Y. S. (2014) SiO and H2O maser survey toward post-asymptotic giant branch and asymptotic giant branch stars. Astrophys. J. Suppl. Ser. 211. 15.
https://doi.org/10.1088/0067-0049/211/1/15