R136a1

R136a1

Gambar inframerah dekat dari gugus R136, diperoleh dengan resolusi tinggi menggunakan instrumen optik adaptif MAD di ESO Very Large Telescope. R136a1 terletak di bagian tengah dengan R136a2 dekatnya, R136a3 di bawah kanan, dan R136b di sebelah kiri.
Data pengamatan
Epos J2000.0      Ekuinoks J2000.0
Rasi bintang Dorado
Asensio rekta  5j 38m 42.39d[1]
Deklinasi  −69° 06′ 02.91″[1]
Magnitudo tampak (V) 12.23[1]
Ciri-ciri
Tahap evolusi Bintang Wolf–Rayet
Kelas spektrum WN5h[2]
Indeks warna B−V 0.03[1]
Astrometri
Jarak163,000 tc
(49,970[3] pc)
Magnitudo mutlak (MV)−8.09[4]
Detail[4]
Massa315+60
−50[4] M☉
Radius28.8[2]-35.4[5] R☉
Luminositas8,710,000 L☉
Luminositas (visual, LV)150,000 L☉
Gravitasi permukaan (log g)4.0[5]
Suhu53,000 ± 3000[4] K
Usia0 - 0.8 megatahun
Penamaan lain
BAT99 108, RMC 136a1, HSH95 3, WO84 1b, NGC 2070 MH 498, CHH92 1, P93 954
Referensi basis data
SIMBADdata

RMC 136a1 (sering disingkat R136a1) adalah sebuah Bintang Wolf–Rayet yang terletak di tengah R136, pusat kondensasi bintang-bintang besar NGC 2070 gugus terbuka di Nebula Tarantula. Bintang ini terletak pada jarak sekitar 50 kiloparsek (163.000 tahun cahaya) di galaksi tetangga yang dikenal dengan Awan Magellan Besar. Bintang ini termasuk kedalam bintang dengan massa tetinggi dan bintang paling terang yang diketahui, dengan massa 315 M☉ dan 8.7 juta L☉, bintang ini juga merupakan salah satu bintang terpanas dengan suhu 53.000 K.

Kesan seniman bintang R136a1

Referensi

  1. ^ a b c d Doran, E. I.; Crowther, P. A.; de Koter, A.; Evans, C. J.; McEvoy, C.; Walborn, N. R.; Bastian, N.; Bestenlehner, J. M.; Gräfener, G.; Herrero, A.; Kohler, K.; Maiz Apellaniz, J.; Najarro, F.; Puls, J.; Sana, H.; Schneider, F. R. N.; Taylor, W. D.; van Loon, J. Th.; Vink, J. S. (2013). "The VLT-FLAMES Tarantula Survey - XI. A census of the hot luminous stars and their feedback in 30 Doradus". Astronomy & Astrophysics. 558: A134. arXiv:1308.3412v1 alt=Dapat diakses gratis. Bibcode:2013A&A...558A.134D. doi:10.1051/0004-6361/201321824. 
  2. ^ a b Hainich, R.; Rühling, U.; Todt, H.; Oskinova, L. M.; Liermann, A.; Gräfener, G.; Foellmi, C.; Schnurr, O.; Hamann, W. -R. (2014). "The Wolf–Rayet stars in the Large Magellanic Cloud". Astronomy & Astrophysics. 565: A27. arXiv:1401.5474 alt=Dapat diakses gratis. Bibcode:2014A&A...565A..27H. doi:10.1051/0004-6361/201322696. 
  3. ^ Pietrzyński, G; D. Graczyk; W. Gieren; I. B. Thompson; B. Pilecki; A. Udalski; I. Soszyński; et al. (7 March 2013). "An eclipsing-binary distance to the Large Magellanic Cloud accurate to two per cent". Nature. 495 (7439): 76–79. arXiv:1303.2063 alt=Dapat diakses gratis. Bibcode:2013Natur.495...76P. doi:10.1038/nature11878. PMID 23467166. 
  4. ^ a b c d Crowther, Paul A.; Caballero-Nieves, S. M.; Bostroem, K. A.; Maíz Apellániz, J.; Schneider, F. R. N.; Walborn, N. R.; Angus, C. R.; Brott, I.; Bonanos, A.; De Koter, A.; De Mink, S. E.; Evans, C. J.; Gräfener, G.; Herrero, A.; Howarth, I. D.; Langer, N.; Lennon, D. J.; Puls, J.; Sana, H.; Vink, J. S. (2016). "The R136 star cluster dissected with Hubble Space Telescope/STIS. I. Far-ultraviolet spectroscopic census and the origin of He II λ1640 in young star clusters". Monthly Notices of the Royal Astronomical Society. 458: 624. arXiv:1603.04994 alt=Dapat diakses gratis. Bibcode:2016MNRAS.458..624C. doi:10.1093/mnras/stw273. 
  5. ^ a b Crowther, P. A.; Schnurr, O.; Hirschi, R.; Yusof, N.; Parker, R. J.; Goodwin, S. P.; Kassim, H. A. (2010). "The R136 star cluster hosts several stars whose individual masses greatly exceed the accepted 150 M⊙ stellar mass limit". Monthly Notices of the Royal Astronomical Society. 408 (2): 731. arXiv:1007.3284 alt=Dapat diakses gratis. Bibcode:2010MNRAS.408..731C. doi:10.1111/j.1365-2966.2010.17167.x. 

Koordinat: Peta langit 05h 38m 42.43s, −69° 06′ 02.2″

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