This paper analyzes optical and infrared photometry of pre-main-sequence stars in the
Taurus-Aunga molecular cloud. More than half of the stars in our sample have excess near …

We re-examine the observed near-infrared properties of T Tauri stars and interpret them with
the aid of accretion disk models. Based upon a careful analysis of the dereddened near …

We present a method to analyze the spectral energy distributions (SEDs) of young stellar
objects (YSOs). Our approach is to fit data with precomputed two-dimensional (2D) radiation …

We present a grid of radiation transfer models of axisymmetric young stellar objects (YSOs),
covering a wide range of stellar masses (from 0.1 to 50 M☉) and evolutionary stages (from …

ABSTRACT A model for irradiated dust disks around Herbig Ae stars is proposed. The
model is based on the flaring disk model given by Chiang and Goldreich in 1997, but with …

The Pre-Main-Sequence Evolution of Intermediate-Mass Stars ADS Classic is now deprecated.
It will be completely retired in October 2019. This page will automatically redirect to the new …

We present two-dimensional radiation transfer models of class I protostars and show the
effect of including more realistic geometries on the resulting spectral energy distributions …

We have derived ages for 13 young (< 30 Myr) star-forming regions and find that they are up
to a factor of 2 older than the ages typically adopted in the literature. This result has wide …

We present an analysis of J, H, and K s time-series photometry obtained with the southern
2MASS telescope over a 0 &fdg; 84× 6 region centered near the Trapezium region of the …

We have selected a list of 45 Herbig Ae/Be-type candidates on the base of their IRAS colors
and their spectral types. We propose the presence of a broad infrared excess as a defining …