Astronomy:L1551 IRS 5
From HandWiki
Short description: Star in the constellation Taurus
 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 Equinox J2000.0]] (ICRS) | |
|---|---|
| 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 | |
| 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.[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]
| 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
- ↑ 1.0 1.1 Cutri, Roc M.; Skrutskie, Michael F.; Van Dyk, Schuyler D.; Beichman, Charles A.; Carpenter, John M.; Chester, Thomas; Cambresy, Laurent; Evans, Tracey E. et al. (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. http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=II/246.
- ↑ 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. doi:10.1088/0004-6256/147/6/140. Bibcode: 2014AJ....147..140G.
- ↑ 3.0 3.1 3.2 3.3 3.4 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. doi:10.3847/1538-4357/aa6116. Bibcode: 2017ApJ...837...86T.
- ↑ 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. doi:10.1088/0004-637X/814/2/160. Bibcode: 2015ApJ...814..160T.
- ↑ 5.0 5.1 5.2 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, doi:10.3847/2041-8213/ab39ea, Bibcode: 2019ApJ...882L...4C
- ↑ "The 100 Greatest Stars". http://www.chronon.org/reviews/100stars.html.
External links
 |  |
