L1551 IRS 5

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L1551 IRS 5
HH 154 Spitzer.jpg
HH 154 in mid-infrared around L1551 IRS 5 (bright red star in the middle) and L1551 NE (less bright red star to the left)
Credit: NASA Spitzer Space Telescope
Observation data
Epoch J2000       Equinox J2000
Constellation Taurus
Right ascension 04h 31m 34.077s [1]
Declination +18° 08′ 04.90″ [1]
Characteristics
Spectral type K3V/M3III [2]
Astrometry
Distance 450  ly
(140 [3]   pc)
Details
A
Mass 0.68 [3]   M☉
Radius 4 [3]   R☉
Luminosity 4.2 [3]   L☉
B
Mass 0.13 [3]   M☉
Other designations
L551 IRS 5, 2MASS J04313407+1808049, IRAS 04287+1801, WISE J043134.12+180804.9 EPIC 210683818
Database references
SIMBAD data

L1551 IRS 5 is a protostellar envelope surrounding a binary protostar system in the constellation of Taurus 450 light-years from Earth. The binary system itself is known as L1551 NE, [4] and each star is surrounded by protoplanetary disk.[ disputed (for: These are actually two different systems, both binary systems.) – discuss ] [5] The system is one of Jim Kaler's The 100 greatest stars. [6]

The binary is surrounded by a complex, gas-rich protoplanetary disk system. [5]

A Kepler light curve for L1551 IRS 5, adapted from Cody et al. (2022) L1551IRS5LightCurve.png
A Kepler light curve for L1551 IRS 5, adapted from Cody et al. (2022)
The L1551 NE planetary system [5]
Companion
(in order from star)		 Mass Semimajor axis
(AU)		 Orbital period
(days)		 Eccentricity Inclination Radius
North protoplanetary disk 13.3±3.5 AU 35±14° —
South protoplanetary disk 14.0±5.0 AU 45±15° —
Circumbinary protoplanetary disk 141.9±7.4 AU 61.5±1.7° —

References

  1. 1 2 Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E.; Fowler, John W.; Gizis, John E.; Howard, Elizabeth V.; Huchra, John P.; Jarrett, Thomas H.; Kopan, Eugene L.; Kirkpatrick, J. Davy; Light, Robert M.; Marsh, Kenneth A.; McCallon, Howard L.; Schneider, Stephen E.; Stiening, Rae; Sykes, Matthew J.; Weinberg, Martin D.; Wheaton, William A.; Wheelock, Sherry L.; Zacarias, N. (2003). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". CDS/ADC Collection of Electronic Catalogues. 2246: II/246. Bibcode:2003yCat.2246....0C.
  2. ↑ Gramajo, Luciana V.; Rodón, Javier A.; Gómez, Mercedes (2014). "Spectral Energy Distribution Analysis of Class I and Class II FU Orionis Stars". The Astronomical Journal. 147 (6): 140. arXiv: 1402.3240 . Bibcode:2014AJ....147..140G. doi:10.1088/0004-6256/147/6/140. S2CID   121971148.
  3. 1 2 3 4 5 Takakuwa, Shigehisa; Saigo, Kazuya; Matsumoto, Tomoaki; Saito, Masao; Lim, Jeremy; Hanawa, Tomoyuki; Yen, Hsi-Wei; Ho, Paul T. P. (2017). "Spiral Arms, Infall, and Misalignment of the Circumbinary Disk from the Circumstellar Disks in the Protostellar Binary System L1551 NE". The Astrophysical Journal. 837 (1): 86. arXiv: 1702.05562 . Bibcode:2017ApJ...837...86T. doi: 10.3847/1538-4357/aa6116 . S2CID   119186924.
  4. ↑ Takakuwa, Shigehisa; Kiyokane, Kazuhiro; Saigo, Kazuya; Saito, Masao (2015). "Dispersing Envelope around the Keplerian Circumbinary Disk in L1551 NE and Its Implications for Binary Growth". The Astrophysical Journal. 814 (2): 160. arXiv: 1510.08353 . Bibcode:2015ApJ...814..160T. doi:10.1088/0004-637X/814/2/160. S2CID   119258719.
  5. 1 2 3 Cruz-Sáenz De Miera, Fernando; Kóspál, Ágnes; Ábrahám, Péter; Liu, Hauyu Baobab; Takami, Michihiro (2019), "Resolved ALMA Continuum Image of the Circumbinary Ring and Circumstellar Disks in the L1551 IRS 5 System", The Astrophysical Journal, 882 (1): L4, arXiv: 1908.04649 , Bibcode:2019ApJ...882L...4C, doi: 10.3847/2041-8213/ab39ea , S2CID   199552023
  6. ↑ "The 100 Greatest Stars".
  7. ↑ Cody, Ann Marie; Hillenbrand, Lynne A.; Rebull, Luisa M. (May 2022). "The Many-faceted Light Curves of Young Disk-bearing Stars in Taurus as Seen by K2". The Astronomical Journal. 153 (5): 212. arXiv: 2204.06646 . Bibcode:2022AJ....163..212C. doi: 10.3847/1538-3881/ac5b73 .


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