Herschel observations of the nebula M1-67 around the Wolf-Rayet star WR 124

被引：0
|
作者：
Vamvatira-Nakou, C. [1 ]
Hutsemékers, D. [1 ]
Royer, P. [2 ]
Waelkens, C. [2 ]
Groenewegen, M.A.T. [3 ]
Barlow, M.J. [4 ]
机构：
[1] Institut d'Astrophysique et de Géophysique, Université de Liège, Quartier Agora, Allée du 6 aoû, 19C-Bât. B5c, Liège (Sart-Tilman),4000, Belgium
[2] Instituut voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, Leuven,3001, Belgium
[3] Koninklijke Sterrenwacht van België, Ringlaan 3, Brussels,1180, Belgium
[4] Department of Physics and Astronomy, University College London, Gower Street, London,WC1E 6BT, United Kingdom
来源：
Astronomy and Astrophysics | 2016年 / 588卷
关键词：
Infrared Herschel imaging and spectroscopic observations of the nebula M1-67 around the Wolf-Rayet star WR 124 have been obtained along with optical imaging observations. The infrared images reveal a clumpy dusty nebula that extends up to 1 pc. The comparison with the optical images shows that the ionized gas nebula coincides with the dust nebula; the dust and the gas being mixed together. A photodissociation region is revealed from the infrared spectroscopic analysis. The analysis of the infrared spectrum of the nebula; where forbidden emission lines of ionized elements were detected; showed that the nebula consists of mildly processed material with the calculated abundance number ratios being N/O = 1.0 ± 0.5 and C/O = 0.46 ± 0.27. Based on a radiative transfer model; the dust mass of the nebula was estimated to be 0.22 Mo with a population of large grains being necessary to reproduce the observations. The comparison of the mass-loss rate and the abundance ratios to theoretical models of stellar evolution led to the conclusion that the nebular ejection took place during a RSG/YSG evolutionary phase of a central star with an initial mass of 32 Mo. © ESO; 2016;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
相关论文
共 50 条
  • [21] Neutral hydrogen around the oxygen-sequence Wolf-Rayet star WR 102 and the nebula G2.4+1.4
    I. V. Gosachinskij
    T. A. Lozinskaya
    Astronomy Letters, 2002, 28 : 701 - 712
  • [22] Integral field spectroscopy of M1-67. A Wolf-Rayet nebula with luminous blue variable nebula appearance
    Fernandez-Martin, A.
    Vilchez, J. M.
    Perez-Montero, E.
    Candian, A.
    Sanchez, S. F.
    Martin-Gordon, D.
    Riera, A.
    ASTRONOMY & ASTROPHYSICS, 2013, 554
  • [23] Simultaneous radio and X-ray observations of the Wolf-Rayet star WR 147
    Skinner, SL
    Itoh, M
    Nagase, F
    Zhekov, SA
    ASTROPHYSICAL JOURNAL, 1999, 524 (01): : 394 - 405
  • [24] A new Wolf-Rayet star and its circumstellar nebula in Aquila
    Sternberg Astronomical Institute, Moscow State University, Universitetskij Pr. 13, Moscow 119992, Russia
    不详
    不详
    不详
    不详
    不详
    Mon. Not. R. Astron. Soc., 2 (760-767):
  • [25] The HI bubble surrounding the Wolf-Rayet star WR 149
    Cappa, CE
    Niemela, VS
    Herbstmeier, U
    Koribalski, B
    ASTRONOMY & ASTROPHYSICS, 1996, 312 (01) : 283 - 288
  • [26] An XMM-Newton look at the Wolf-Rayet star WR 40 the star itself, its nebula and its neighbours
    Gosset, E.
    Nazé, Y.
    Claeskens, J.-F.
    Rauw, G.
    Vreux, J.-M.
    Sana, H.
    Astronomy and Astrophysics, 1600, 429 (02): : 685 - 704
  • [27] A new Wolf-Rayet star and its circumstellar nebula in Aquila
    Gvaramadze, V. V.
    Kniazev, A. Y.
    Hamann, W. -R.
    Berdnikov, L. N.
    Fabrika, S.
    Valeev, A. F.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2010, 403 (02) : 760 - 767
  • [28] On the Apparent Absence of Wolf-Rayet plus Neutron Star Systems: The Curious Case of WR124
    Toala, J. A.
    Oskinova, L. M.
    Hamann, W. -R.
    Ignace, R.
    Sander, A. A. C.
    Shenar, T.
    Todt, H.
    Chu, Y. -H.
    Guerrero, M. A.
    Hainich, R.
    Torrejon, J. M.
    ASTROPHYSICAL JOURNAL LETTERS, 2018, 869 (01)
  • [29] An XMM-Newton look at the Wolf-Rayet star WR 40 -: The star itself, its nebula and its neighbours
    Gosset, E
    Nazé, Y
    Claeskens, JF
    Rauw, G
    Vreux, JM
    Sana, H
    ASTRONOMY & ASTROPHYSICS, 2005, 429 (02) : 685 - 704
  • [30] A DUST SHELL AROUND THE EARLY-TYPE WOLF-RAYET STAR WR-19
    WILLIAMS, PM
    VANDERHUCHT, KA
    THE, PS
    BOUCHET, P
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1990, 247 (02) : P18 - P20
12345