RY Tauri

RY Tauri

A visual band light curve for RY Tauri, shawing variability on three different time scales, adapted from Ismailov and Adygezalzade (2012),[1] Ismailov et al. (2011)[2] and Siwak et al. (2011)[3]
Observation data
Epoch J2000      Equinox J2000
Constellation Taurus
Right ascension 04h 21m 57.4133s[4]
Declination +28° 26′ 35.5340″[4]
Apparent magnitude (V) 9.5 - 11.5[5]
Characteristics
Evolutionary stage pre-main-sequence star
Spectral type F7[6]
Apparent magnitude (G) 10.706[7]
Variable type T Tau[8]
Astrometry
Radial velocity (Rv)24.3±1.9 km/s
Proper motion (μ) RA: 8.744[7] mas/yr
Dec.: −27.002[7] mas/yr
Parallax (π)7.2349 ± 0.2031 mas[7]
Distance450 ± 10 ly
(138 ± 4 pc)
Absolute magnitude (MV)+2.11 (at magnitude 9.55)[5]
Position (relative to RY Tauri)[9]
Component2MASS J04215810+2826300
Angular distance10.83″
Position angle122.41°
Projected separation1500 AU
Details
Mass2.0[10] M☉
Radius3.2[10] R☉
Luminosity11.6[10] L☉
Surface gravity (log g)3.8[10] cgs
Temperature5,945[10] K
Age4.7+1.00
−0.90[5] Myr
Other designations
BD+28 645, Gaia DR2 164551162164119424, HD 283571, HIP 20387, TYC 1828-129-1, GSC 01828-00129, 2MASS J04215740+2826355
Database references
SIMBADdata

RY Tauri is a young T Tauri star in the constellation of Taurus about 450 light years away, belonging to the Taurus Molecular Cloud. It is more massive than typical T Tauri stars, and may be an intermediate between this class and the Herbig Ae/Be star type.[11]

  1. ^ Cite error: The named reference Ismailov2012 was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference Ismailov2011 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Siwak was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  5. ^ a b c Gorda, S Yu; Mkrtichian, D. E.; Fernandez, M.; Irsmambetova, T. R.; Shenavrin, V. I.; Gahm, G. F.; Djupvik, A. A.; De Albuquerque, R M G.; Babina, E. V.; Artemenko, S. A.; Gameiro, J. F.; Grankin, K. N.; Petrov, P. P. (2019), "Dynamics of wind and the dusty environments in the accreting T Tauri stars RY Tauri and SU Aurigae", Monthly Notices of the Royal Astronomical Society, 483: 132–146, arXiv:1811.08635, doi:10.1093/mnras/sty3066
  6. ^ Giannini, T.; Nisini, B.; Antoniucci, S.; Biazzo, K.; Alcalá, J.; Bacciotti, F.; Fedele, D.; Frasca, A.; Harutyunyan, A.; Munari, U.; Rigliaco, E.; Vitali, F. (2019), "GIARPS High-resolution Observations of T Tauri stars (GHOsT). I: Jet line emission", Astronomy & Astrophysics, A44: 631, arXiv:1909.10392, Bibcode:2019A&A...631A..44G, doi:10.1051/0004-6361/201936085, S2CID 202719615
  7. ^ a b c d Cite error: The named reference EDR3 was invoked but never defined (see the help page).
  8. ^ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/GCVS. Originally Published in: 2009yCat....102025S. 1: B/gcvs. Bibcode:2009yCat....102025S.
  9. ^ Itoh, Yoichi; Tamura, Motohide; Hayashi, Masahiko; Oasa, Yumiko; Hayashi, Saeko S.; Fukagawa, Misato; Kudo, Tomoyuki; Mayama, Satoshi; Ishii, Miki; Pyo, Tae-Soo; Yamashita, Takuya; Morino, Junichi (2008), "Near-Infrared Spectroscopy of Faint Companions around Young Stellar Objects Associated with the Taurus Molecular Cloud", Publications of the Astronomical Society of Japan, 60 (2): 209–218, Bibcode:2008PASJ...60..209I, doi:10.1093/pasj/60.2.209, hdl:20.500.14094/90001427
  10. ^ a b c d e Davies, Claire L.; Kraus, Stefan; Harries, Tim J.; Monnier, John D.; Kloppenborg, Brian; Aarnio, Alicia; Baron, Fabien; Lopez, Rebeca Garcia; Millan-Gabet, Rafael; Parks, Robert; Pedretti, Ettore; Perraut, Karine; Sturmann, Judit; Sturmann, Laszlo; Ten Brummelaar, Theo A.; Touhami, Yamina (2020), "The Inner Disk of RY Tau: Evidence of Stellar Occultation by the Disk Atmosphere at the Sublimation Rim from K-band Continuum Interferometry", The Astrophysical Journal, 897 (1): 31, arXiv:2005.06932, Bibcode:2020ApJ...897...31D, doi:10.3847/1538-4357/ab93c1, S2CID 218628839
  11. ^ Cite error: The named reference Monnier2006 was invoked but never defined (see the help page).