Globul Bok

"Jari Tuhan" di Nebula Carina

Pada astronomi, Globul Bok (dari Bart Bok, penemunya) adalah nebula gelap terisolasi dan relatif kecil, yang mengandung debu antarbintang padat dan gas, yang dapat memicu pembentukan bintang. Globul Bok ditemukan di dalam wilayah H II, dan biasanya memiliki massa sekitar 2[1] sampai 50 massa matahari yang berada pada dengan diameter sekitar 1 tahun cahaya (sekitar 4,5×1047 m3).[2] Mereka mengandung hidrogen molekuler (H2), oksida karbon dan helium, dan sekitar 1% debu silika. Globul Bok biasanya menghasilkan pembentuka sistem bintang ganda atau lebih.[3]

Referensi

  1. ^ Michael Szpir (May–June 2001). "Bart Bok's Black Blobs". American Scientist. Diarsipkan dari asli tanggal 2017-04-24. Diakses tanggal 2008-11-19. Bok globules such as Barnard 68 are only about half a light-year across and weigh in at about two solar masses
  2. ^ Clemens, Dan P.; Yun, João Lin; Meyer, Mark H. (March 1991). "BOK globules and small molecular clouds – Deep IRAS photometry and (C-12)O spectroscopy". Astrophysical Journal Supplement. 75: 877. Bibcode:1991ApJS...75..877C. doi:10.1086/191552.
  3. ^ Launhardt, R.; Sargent, A. I.; Henning, T.; Zylka, R.; Zinnecker, H. (10–15 April 2000). "Binary and multiple star formation in Bok globules". Birth and Evolution of Binary Stars, Poster Proceedings of IAU Symposium No. 200 on The Formation of Binary Stars. Potsdam, Germany: Bo Reipurth and Hans Zinnecker. hlm. 103. Bibcode:2000IAUS..200P.103L.

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