PDS 70

PDS 70

Cakram protoplanet PDS 70 dengan planet baru PDS 70b (kanan)
Data pengamatan
Epos J2000      Ekuinoks J2000
Rasi bintang Sentaurus
Asensio rekta  14j 08m 10.15451d[1]
Deklinasi  -41° 23′ 52.5766″[1]
Magnitudo tampak (V) 12[2]
Ciri-ciri
Kelas spektrum K5[3]
Indeks warna U−B 0.71[4]
Indeks warna B−V 1.06[4]
Astrometri
Kecepatan radial (Rv)3.13[1] km/s
Gerak diri (μ) RA: -29.661[1] mdb/thn
Dek.: -23.823[1] mdb/thn
Paralaks (π)8,8159±0,0405[1] mdb
Jarak370 ± 2 tc
(113,4 ± 0,5 pc)
Detail
Massa0.82[2] M☉
Radius1.39[4] R☉
Suhu4406[4] K
Rotasi~50 hari[3]
Kecepatan rotasi (v sin i)~10[3] km/s
Penamaan lain
V1032 Cen, 2MASS J14081015-4123525, IRAS 14050−4109
Referensi basis data
SIMBADdata

PDS 70 (V1032 Centauri) adalah sebuah bintang T Tauri bermassa rendah di konstelasi Centaurus. Terletak sekitar 370 tahun cahaya jauhnya dari Bumi, bintang tersebut memiliki sebuah massa sekitar 0.82 M☉,[2] dan diperkirakan berusia 10 juta tahun.[5]

Referensi

  1. ^ Müller, A; et al. (2018). "Orbital and atmospheric characterization of the planet within the gap of the PDS 70 transition disk". Astronomy & Astrophysics. 617: L2. arXiv:1806.11567 alt=Dapat diakses gratis. Bibcode:2018A&A...617L...2M. doi:10.1051/0004-6361/201833584. 
  2. ^ Staff (2 July 2018). "First confirmed image of newborn planet caught with ESO's VLT - Spectrum reveals cloudy atmosphere". EurekAlert!. Diakses tanggal 2 July 2018. 
  3. ^ Keppler, M; et al. (2018). "Discovery of a planetary-mass companion within the gap of the transition disk around PDS 70". Astronomy & Astrophysics. 617: A44. arXiv:1806.11568 alt=Dapat diakses gratis. Bibcode:2018A&A...617A..44K. doi:10.1051/0004-6361/201832957. 
  4. ^ Hashimoto, J.; et al. (2015). "The Structure of Pre-Transitional Protoplanetary Disks. II. Azimuthal Asymmetries, Different Radial Distributions of Large and Small Dust Grains in PDS 70". The Astrophysical Journal. 799 (1): 43. arXiv:1411.2587 alt=Dapat diakses gratis. Bibcode:2015ApJ...799...43H. doi:10.1088/0004-637X/799/1/43. 
  5. ^ Gregorio-Hetem, J.; Lepine, J. R. D.; Quast, G. R.; Torres, C. A. O.; de La Reza, R. (1992). "A search for T Tauri stars based on the IRAS point source catalog". The Astronomical Journal. 103: 549. Bibcode:1992AJ....103..549G. doi:10.1086/116082. 
  6. ^ Clery, D. (2018). "In a first, astronomers witness the birth of a planet from gas and dust". Science. doi:10.1126/science.aau6469. 
  7. ^ "A Pair of Fledgling Planets Directly Seen Growing Around a Young Star". hubblesite.org. NASA. 3 June 2019. Diakses tanggal 3 June 2019. 
  8. ^ Isella, Andrea; et al. (11 July 2019). "Detection of Continuum Submillimeter Emission Associated with Candidate Protoplanets". The Astrophysical Journal Letters. 879 (2): L25. arXiv:1906.06308 alt=Dapat diakses gratis. Bibcode:2019ApJ...879L..25I. doi:10.3847/2041-8213/ab2a12. 
  9. ^ Blue, Charles E. (11 July 2019). "'Moon-forming' Circumplanetary Disk Discovered in Distant Star System". National Radio Astronomy Observatory. Diakses tanggal 11 July 2019. 
  10. ^ Carne, Nick (13 July 2019). "'Moon-forming' disk found in distant star system - Discovery helps confirm theories of planet formation, astronomers say". Cosmos. Diarsipkan dari versi asli tanggal 2019-07-12. Diakses tanggal 12 July 2019. 
  11. ^ "Astronomers confirm existence of two giant newborn planets in PDS 70 system". phys.org (dalam bahasa Inggris). Diakses tanggal 20 May 2020. 
  12. ^ a b c d e f Brown, A. G. A.; et al. (kolaborasi Gaia) (Agustus 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365 alt=Dapat diakses gratis. Bibcode:2018A&A...616A...1G alt=Dapat diakses gratis. doi:10.1051/0004-6361/201833051 alt=Dapat diakses gratis. 
  13. ^ a b c Riaud, P.; Mawet, D.; Absil, O.; Boccaletti, A.; Baudoz, P.; Herwats, E.; Surdej, J. (2006). "Coronagraphic imaging of three weak-line T Tauri stars: evidence of planetary formation around PDS 70" (PDF). Astronomy & Astrophysics. 458 (1): 317–325. Bibcode:2006A&A...458..317R. doi:10.1051/0004-6361:20065232. 
  14. ^ a b c Hashimoto, J.; et al. (2012). "Polarimetric Imaging of Large Cavity Structures in the Pre-Transitional Protoplanetary Disk Around PDS 70: Observations of the Disk". The Astrophysical Journal. 758 (1): L19. arXiv:1208.2075 alt=Dapat diakses gratis. Bibcode:2012ApJ...758L..19H. doi:10.1088/2041-8205/758/1/L19. 
  15. ^ a b c d Gregorio-Hetem, J.; Hetem, A. (2002). "Classification of a selected sample of weak T Tauri stars". Monthly Notices of the Royal Astronomical Society. 336 (1): 197–206. Bibcode:2002MNRAS.336..197G. doi:10.1046/j.1365-8711.2002.05716.x alt=Dapat diakses gratis. 
  16. ^ "Giant Gap PDS 70's Protoplanetary Disk May Indicate Multiple Planets". SciTechDaily. 12 November 2012. Diakses tanggal 30 June 2018. 

Templat:Bintang-bintang Sentaurus