THE ABUNDANCES OF HEAVY ELEMENTS IN RED SUPERGIANTS OF MAGELLANIC CLOUDS

Автор(и)

  • V. Gopka Astronomical observatory, Odessa National University, Ukraine
  • A Yushchenko Department of Astronomy&Space Sciences, Sejong University, Korea, Republic of
  • V. Kovtyukh Astronomical observatory, Odessa National University, Ukraine
  • A. Shavrina Main Astronomical observatory, NAS of Ukraine, Ukraine
  • V. Yushchenko Astronomical observatory, Odessa National University, Ukraine
  • S. Vasilyeva Astronomical observatory, Odessa National University, Ukraine
  • Y. Pavlenko Main Astronomical observatory, NAS of Ukraine, Ukraine
  • S. Andrievsky Astronomical observatory, Odessa National University, Ukraine

DOI:

https://doi.org/10.18524/1810-4215.2013.26.81813

Ключові слова:

Magellanic Clouds, supergiants, chemical abundances, heavy elements, r-process elements, s-process elements

Анотація

The spectra of Magellanic Clouds (MC) supergiants PMMR23, PMMR144 and RM 1-667 with resolving power R=30,000 and signal to noise ratio near 100 obtained at3.6 metertelescope in Chile were analysed. We present are port on the  detailed investigation of MC supergiants, with special attention to the thorium abundance in these stars. The abundance patterns of three supergiants show that r-process elements are clearly detected in the atmospheres of investigated stars, but the bundances of s-processes elements can vary from star to star. 

Посилання

Aoki W., Honda S., Sadakane K., Arimoto N.: 2007, PASJ, 59, L15.

Bekki K.: 2011, MNRAS, 416, 2359.

Gopka V.F., Yushchenko A.V., Mishenina T.V., Kim

Chulhee, Musaev F.A., Bondar´A.V.:2004, ARep, 48, 577.

Gopka V., Yushchenko A., Andrievsky S., Goriely S., Vasileva S., Kang Y.-W.:2005, IAUSymp., 228, 535.

Gopka V.F., Shavrina A.V., Vasil’eva S.V., Yushchenko V.A., Yushchenko A.V., Andrievsky S.M.:2013, Bull. CrAO, 109, 41.

Hilditch R.W., Howarth I.D., Harris T.J.: 2005, MNRAS, 357, 304.

Hill V.:1997, A&A, 324, 435.

Kang Y.-W., Yushchenko A., Hong K., Kim S., Yushchenko V.: 2012, AJ, 144, 35.

Kang Y.-W., Yushchenko A.V., Hong K., Guinan E.F., Gopka V.F.: 2013, AJ, 145, 167.

Kurucz R.L.: 1995, CDROM No.23 (Cambridge, MA, Smithsonian Astrophys. Obs.).

Luck R.E., Bond H.:1989, ApJ S, 71, 559.

Novara G.N., La Palombara S., Mereghetti H.F., Coe M. et al. :2011, A&A, 532, 153.

Pavlenko Ya.V.: 2003, ARep, 47, 59.

Piskunov N.E., Kupka F., Ryabchikova T.A., Weiss W.W., Jeffery C.S.:1995, A&A, 112, 525.

Reynolds S.E., Hearnshow J.B., Cotrell P.L.:1988, MNRAS, 235, 1423.

Rolleston W.R.J.:1991, AJ, 120, 60.

Russell S.C., Bessell M.S.:1989, ApJS, 70, 865.

Russell S.C., Dopita M.A.:1992, ApJ, 384, 508.

Simmerer J., Sneden C., Cowan J.J., Collier J., Woolf V.M., Lawler J.E.:2004, ApJ, 617, 1091.

Skibba R.A., Charles W., Engelbracht C.W., Aniano G., Babler B. et al.:2012, ApJ, 761, 42.

Tsymbal V.:1996, ASP Conf. Ser., 108, 198.

Yushchenko A., Gopka V., Goriely S., Musaev F., Shavrina A., Kim C., Kang Y.Woon, Kuznietsova J., YushchenkoV.:2005, A&A, 430, 255.

Yushchenko A.V., Rittipruk P., Yushchenko V.A., Kang Y.-W.:2013, OAP, This volume.

##submission.downloads##

Опубліковано

2013-11-02

Номер

Розділ

Статті