Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· References in the article
· Citations to the Article (73) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (56)
· Also-Read Articles (Reads History)
· Translate This Page
Correlations of optical and infrared excesses in T Tauri stars
Hartigan, Patrick; Hartmann, Lee; Kenyon, Scott J.; Strom, Stephen E.; Skrutskie, Michael F.
AA(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA), AB(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA), AC(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA), AD(Massachusetts, University, Amherst), AE(Massachusetts, University, Amherst)
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 354, May 1, 1990, p. L25-L28. Research supported by the Smithsonian Institution, NSF, and NASA. (ApJL Homepage)
Publication Date:
NASA/STI Keywords:
Light Emission, Near Infrared Radiation, Stellar Radiation, T Tauri Stars, Accretion Disks, Boundary Layers, Cooling, Ionization, Radiative Transfer, Stellar Mass Accretion
Bibliographic Code:


The results of a survey of excess optical continuum emission (veiling) in a sample of 35 K7-M1 pre-main-sequence stars in Taurus-Auriga are reported. Stars with detectable veiling emission always show significant near-infrared K-L excesses. This result agrees with the prediction of a simple accretion disk model, where a boundary layer produces the veiling and the infrared excess comes from the disk. The K-N colors of T Tauri stars fall into two distinct groups: stars in the group with small or absent K-N excesses have no detectable veiling emission, while objects with large K-N excesses usually have detectable veiling. This result also agrees with the prediction of the disk model, where a large K-N excess indicates an optically thick disk, and an optically thick disk is required to generate a mass accretion rate large enough to produce detectable veiling.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences

More Article Retrieval Options

HELP for Article Retrieval

Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)


Find Similar Abstracts:

Use: Authors
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
arXiv e-prints