WTTS, Weak-lined T Tauri Stars

WTTS Research at UCM

The chromospheric activity of weak-lined T Tauri stars: simultaneous H and Ca II H & K observations
Poncet A., Montes D., Fernández-Figueroa M.J., Miranda L.F.,
Cool Stars, Stellar Systems, and the Sun, 10th Cambridge Workshop , J.A. Bookbinder & R.A. Donahue (eds.), ASP Conference Series 154, CD-1772
PS_file (full paper) -- Abstract

Simultaneous H, Li I and Ca II H & K observations of bona-fide weak-lined T Tauri stars in Taurus with known rotational period
Montes D., Miranda L.F.
2004, Astronomy & Astrophysics (in preparation)

Chromospheric activity of ROSAT discovered weak-lined T Tauri stars
Montes D., Ramsey L.W.,
1999, in ASP Conf. Ser., 158, p. 302 Solar and Stellar Activity: Similarities and Differences
(meeting dedicated to Brendan Byrne, Armagh 2-4th September 1998) J. Butler and G. Doyle, eds.
PS_file (text & Fig's)

WTTS Links

World of T Tauri Stars (Lee Carkner, Penn State Univ.)
A Star is Born (virtual tour though the life of a young star) (Lee Carkner, Penn State Univ.)
Pre-Main Sequence Stars (Penn State Univ.)
T Tauri Stars "Young Suns" (Eric Mamajek, Univ. Arizona, Astronomy Dept)
Star Formation and Young Stars (Landessternwarte Heidelberg-Königstuhl)
Star Formation Research Group at MPIA
Young Stars (CfA)
Young Stars (P. Hartigan, Rice Univ.)
Young Solar Analogs (E. Gaidos, Caltech)
The detection of extremely strong magnetic fields in young stars (Thüringer Landessternwarte Tautenburg)

European Star Formation Network (ESFON)

The formation and evolution of young stellar clusters European Commission Research Training Network


HBC, Third Catalog of Emission-Line Stars of the Orion Population
(Herbig G.H., Bell K.R.: 1988, Lick Obs. Bull. 1111, 1)
HBC, The Herbig-Bell Catalog (HTML version by Karen Strom) -- Catalog Search Form
HBC, The Herbig-Bell Catalog (HTML version Alan D. Welty)
HBC, The Herbig-Bell Catalog (ftp at CDS) --- Main catalog
PMS Database Pre-Main Sequence (PMS) stars observed near Star Forming Regions (SFRs) -- (Alfredo Tripicchio)

Catalog of Photometry of T Tauri Stars (Wesleyan University Astronomy Dpto.)

Photometric observations of PMS objects, Fernández M., 1995 A&AS..113..473 -- Catalog at CDS

Bolometric temperature and young stars (H. Chen) -- Taurus

Pre-Main Sequence tracks and isochrones

The D'Antona and Mazzitelli Pre-Main Sequence tracks and isochrones (1994, ApJS 90, 861)

The Stellar Evolution Group at Grenoble Observatory


Star Formation Newsletter (Editor: Bo Reipurth)

New weak-line T Tauri stars (X-ray detected)

Weak-line T Tauri stars observed with Spitzer

c2d, "From Molecular Cores to Planet Forming Disks" (Spitzer Legacy Program)

FEPS, "The Formation and Evolution of Planetary Systems" (Spitzer Legacy Program)

New associations of young stars

    TW Hydrae Association (~50 pc; ~10 Myr)

    Eta Chamaeleontis Cluster (~97 pc; 8 Myr)

    Epsilon Chamaeleontis kinematic group (~110 pc)

    Beta Pictoris moving group (~36 pc; ~12 Myr)

    Great Austral Nearby Young Association (GAYA) (~50 pc; ~30 Myr)

      Tucanae Association (~45 pc; ~40 Myr)

      Horologium Association (~60 pc; ~30 Myr)

    AB Doradus Moving Group (~20 pc; ~50 Myr)

    MBM12 molecular cloud complex (~65 pc)

    HD 199143 (Capricornius Association) (~48 pc)

    HD 141569 moving group (~100 pc)

    The Extended R CrA Young Association (~100 pc; ~10Myr)

    Pisces Association (~100 pc )

Widespread WTTS, PTTS, ZAMS?

H emission

Rotation in T Tauri stars

COYOTES (Coordinated Observations of Young ObjecTs from Earthbound Sites)

Quantitative spectroscopic criteria for the classification of pre-main sequence low-mass stars. MARTIN, E.L., 1997A&A...321..492

Pre-main sequence Lithium burning: the quest for a new structural parameter Ventura et al., 1998, A&A 331, 1011

A Search for Very low-mass Pre-Main Sequence stars in Taurus Briceño et al., 1998, AJ 115, 2074

Magnetic braking of T Tauri stars P.J. Armitage and C.J. Clarke (MNRAS, 280, 458, 1996)

Spectroscopic Evidence for Magnetospheric Accretion in Classical T Tauri Stars S. Edwards, P. Hartigan, L. Ghandour and C. Andrulis

The ejection of T Tauri stars from molecular clouds and the fate of circumstellar discs Phil Armitage and Cathie Clarke, 1997, MNRAS 285, 540

Low Mass Star Formation, - from Infall to Outflow - "Herbig-Haro Flows and the Birth of Low Mass Stars", (IAU Symposium No. 182)

Multiplicity of T Tauri Stars

Multiplicity of T Tauri Stars (Rainer Köhler)
Binaries among T Tauri Stars in Taurus-Auriga (Köhler 1996)
Multiplicity of X-ray-selected weak-line T Tauri Stars (Köhler 1996)
Multiplicity of T Tauri Stars in Taurus after ROSAT. (Köhler & Leinert, 1998, A&A 331, 977)

Binary T Tauri stars (Wolfgang Brandner)
Multiplicity among T Tauri stars in OB and T associations. Implications for binary star formation.
(Brandner et al. (1996) A&A 307, 121)
Binary Search among X-ray Active Stars South of the Taurus Molecular Cloud
(Sterzik et al. (1997) ApJ 114, 1673)
Substellar Companions to weak-line T Tauri Stars (Brandner et al.)

The Multiplicity of Pre--Main-Sequence Stars in Southern Star-forming Regions
(Ghez et al. 1997, ApJ 481, 378)
Speckle Imaging Measurements of the Relative Tangential Velocities of the Components of T Tauri Binary Stars
(Ghez et al. 1995 AJ, 110, 753)
High Spatial Resolution Imaging of Pre-Main Sequence Binary Stars: Resolving the Relationship Between Disks and Close Companions
(Ghez et al. 1997, ApJ 490, 353)

RXJ 0529.4+0041: a low mass pre-main sequence eclipsing-spectroscopic binary
(Covino et al., 2000, A&A 361, L49)

HD 34700: A new T Tauri double-lined spectroscopic binary
(A.A. Ferro & S. Giridhar, 2003, A&A, 408, L29)
A double-lined spectroscopic orbit for the young star HD 34700
(Torres G., 2004, AJ, 127, 1187)

No Fossil Disk in the T Tauri Multiple System V773 Tau
(G. Duchene, A. M. Ghez, C. McCabe, A. J. Weinberger, 2003, ApJ, 592, 288)
A fourth component in the young multiple system V773 Tau
(Woitas J., 2003, A&A, 406, 685)


Ph.D. Theses


Actividad estelar Grupos cinemáticos estelares

David Montes, dmgastrax.fis.ucm.es